ROBUST MSA offer an extensive range
of gland packings designed and constructed to minimize maintenance
costs.
Our philosophy is to offer the most suitable packing for each application from
the wide selection available, using the
most advanced packing fibers, the highest quality braiding methods and the
best lubrication processes.
The actual cost of a packing is often less
than 3% of the cost of utilization when
compared to the total cost of plant
downtime, equipment wear, product or
fluid loss, labor and gland maintenance.
It is therefore of paramount importance
when specifying a gland packing to
choose from the best modern packing
fibers available, using the most advanced and durable, square interbraided construction.
Combining this quality, with extensive
stock holding and experienced technical
advice, completes the ROBUST MSA
packing service.
Packing Construction
2 DIAGONALS
Section 3mm x 3mm (1/8” x 1/8”) 8 Spindles
Section 4mm x 4mm (5/32” x 5/32”) 8 Spindles
Section 5mm x 5mm (3/16” x 3/16”) 8 Spindles
3 DIAGONALS
Section 6mm x 6mm (7/32” x 7/32”) 12 Spindles
Section 7mm x 7mm (1/4” x 1/4") 12 Spindles
Section 8mm x 8mm (5/16” x 5/16”) 15 Spindles
4 DIAGONALS
Section 10mm x 10mm (3/8” x 3/8”) 24 Spindles
Section 12mm x 12mm (1/2” x 1/2") 24 Spindles
Section 14mm x 14mm (9/16” x 9/16”) 24 Spindles
Section 16mm x 16mm (5/8” x 5/8”) 24 Spindles
All ROBUST MSA packings are square-braided on the most advanced specification braiding machines available. Twenty four and thirty six track braiders are utilized to produce four ply, square inter-braid packings on all sizes from
3/8” (10mm) upwards. Fibers are run from the core of the packing section to the corner-posts and surfaces, whilst
being cross locked in a square, lattice construction, to produce maximum resilience and a highly dense, square packing.
The quality of a packing’s braiding significantly affects the service life of the packing. Packings produced using smaller
or outdated braiding machines lack the strength of true Cross-Lock construction, are less dense and are not as square
in cross-section. The looser the braid of a packing, the lower its durability will be. Additionally, greater gland pressure
is required to perform a seal, resulting in increased mechanical stress. As the packing deteriorates, frequent gland
adjustments are required, causing more mechanical stress on the packing, leading to accelerated failure.
Packings show a high degree of resilience and consistency of volume. Their superior, lattice, square inter-braided
construction needs less gland pressure to seal, resulting in reduced equipment wear, reduced gland maintenance and
increased packing life.
Stock Service
Comprehensive range of packing types and sizes in stock, in both imperial and metric sizes.
Malaysia stocks are held in 8 meter boxes as standard, with some lower cost styles as 30 meter boxes just in sizes 1/8” (3.2mm) and 3/16” (5mm).
ROBUST MSA supply any size of packing/box to your requirements, subject to production.
ROBUST MSA RANGE OF BRAIDED PACKING
Model
Composition/Material
Media/Application
RB1
Pressure Rating: 100 Bar
Bar Rotary Speed: 18 m/s
Temperature: -40 to +250°C
pH Range: 2-14
Product Information
RB-1 is braided from pure Poly Acrylic Nitrile (P.A.N.) fibres which are the
basis of the outstanding capabilities and performance of our PAN fibre
packings. To maximise the performance of this remarkable synthetic fibre,
RB-1 is thoroughly impregnated, yarn by yarn, with heavy PTFE dispersion
and further treated with special lubricants. Type RB-1 has been specially
designed to replace traditional packings, giving enhanced performance
without the shaft wear problems or the elevated costs of other synthetic
fibres.
RB-1 is a true, high specification, process industry packing. The combination
of an exceptional packing fibre with advanced lubrication, gives a clean,
smooth running packing, for extended life even at high shaft speeds and
pressures within a wide Ph and temperature range.
Applications
Wide variety of process plant including pumps, valves, mixers, reactor
vessels and reciprocating applications. Against general chemicals, solvents,
oils, water and steam. A wide ranging packing, for use in arduous process
applications, especially where alternative packings contaminate, cause
excessive wear or require frequent maintenance and replacement. RB-1 does
not contaminate nor stain, making it particularly suitable for use in the
food, water and paper industries.
RB2
Pressure Rating: 80 Bar
Bar Rotary Speed: 10 m/s
Temperature: -50 to +250°C
pH Range: 4-14
Product Information
Type RB-2 is constructed using a composite yarn manufactured from
high-quality PAN fibres combination with pure Carbon fibres. The
in-built lubrication and superior packing fibre properties of this composite
yarn are further enhanced by a thorough graphite impregnation and high
temperature lubricants.
RB-2 is a soft, comfortable packing, with a square, inter-braided,
lattice construction, which creates improved sealing contact with less
gland pressure. The self lubricating PAN fibre, re-inforced with Carbon and
heavily coated and impregnated with graphite lubricants, practically
eliminates shaft scoring. RB-2 gives extended packing life, with reduced
shaft wear and gland maintenance.
Applications
RB-2 is an exceptional performance and cost general purpose packing
suitable for most plant applications. Designed to replace and out-perform
traditional Graphited Asbestos, glass fibre and Natural fibre packings. Suitable for most plant applications.
RB3
Pressure Rating: To Tank
Bar Rotary Speed: Static Only
Temperature: -40 to +250°C
pH Range: 1-14
Product Information
RB-3 is a static use variant of our Type RB-1 which has been
specifically designed and produced for Man-Lids on Tanks. RB-3 is dense,
square inter-braided from P.A.N. Fibres that are thoroughly impregnated
with P.T.F.E. dispersion.
Increasing environmental awareness and legislation make consideration of the
material, braid quality and performance of Tank Lid packings of paramount
importance. RB-3 is widely used in the static and road tank
industry as the quality example of a braided tank packing.
For the increased resilience of a rubber core, combined with the chemical
resistance of P.T.F.E., Robust MSA offer our FEP Encapsulated Silicone
Rubber Tank lid Seals. In a variety of sizes to suit all common Tank Lids and
cross sections to customer preference. RB-3 is available from stock in all
standard road tank sizes, as are the above Encapsulated Seals.
Applications
Man-Lids, Tank Covers and Hatches against all chemicals that are
compatible with PTFE.
RB4
Pressure Rating: 150 Bar
Bar Rotary Speed: 12 m/s
Temperature: -40 to +280°C
pH Range: 2-12
Product Information
RB4-L is interbraided from continuous filament, textured, air-blown glass
yarns. The glass fibres are heavily lubricated and thoroughly impregnated with
PTFE dispersion and an inert lubrication, both prior to and subsequent to
braiding.
RB4-L can replace traditional packings in general, non-arduous duties,
whilst being of superior square inter-braid construction. Consider that
Type RB4-L’s air-blown glass fibres are kinder to the shaft and you have a
naturally square packing that will seal with less gland pressure, significantly
reduce shaft wear and gland adjustment and thus increase packing life in light
duties.
Applications
Type RB4-L is a smooth, cool running packing for a wide variety of uses in a
plant. Particularly useful on water and mildly abrasive slurries, solvents and
chemicals in reciprocating and centrifugal pumps, mixers and valves.
Alternative Type RB4-D is the self-same packing but the inert lubricants are
replaced by an increased PTFE dispersion. RB4-D is designed as a valve
packing that is also suitable for a variety of static or slow moving applications.
RB5
Pressure Rating: 250 Bar
Bar Rotary Speed: 1 m/s
Temperature: -100 to +550°C
pH Range: 4-11
Product Information
Type RB5-D is square braided from continuous filament, texturised glass
fibres re-inforced with Inconel wire and impregnated yarn by yarn with pure
Graphite powder and a corrosion inhibitor.
Type RB5-D Graphited Glass packing is designed as a substitute to classic
Asbestos packings with high temperature capability. The addition of Inconel
wire reinforcement results in a true high pressure and high temperature
traditional valve packing that has the advantage of being non-asbestos.
Applications
General purpose, non-asbestos valve packing against steam, water, oils, air,
alkalis, mild acids and chemicals. Not suitable for very arduous conditions.
RB6
Pressure Rating: 150 Bar
Bar Rotary Speed: 10 m/s
Temperature: -100 to +480°C
pH Range: 4-11
Product Information
RB6-L is an alternative packing for light duties. RB6-L is interbraided from
continuous filament, textured air-blown glass fibres thoroughly
impregnated with mineral oil lubricants and graphite. A dressing and
corrosion inhibitor is further applied to the yarn to improve wear resistance.
Type RB6-L will handle non-mechanically demanding Plant Applications
whilst requiring low gland pressure to seal thus reducing shaft wear and
gland maintenance.
Specify Type RB6-L for general plant service, at elevated temperatures, only
if Carbon or Graphite fibres are not required. Glass fibres offer exceptional
temperature resistance but are relatively low strength. Up to 250°C, use
RB-2 for superior performance or Type RB11L where higher
mechanical load or very abrasive conditions exist. At higher temperatures,
Types RB21 or RB 19 are preferred.
Applications
General purpose packing for rotary and reciprocating pumps, mixers and valves
against steam, water, oils, air, alkalis, mild acids and chemicals.
RB7
Pressure Rating: 400 Bar
Bar Rotary Speed: 15 m/s
Temperature: -100 to +280°C
pH Range: 1-13
Product Information
RB7 AR is an interlace, square braid packing manufactured from KEVLAR®
Aramid fibres impregnated with PTFE dispersion and specially treated with
high temperature break-in-lubricant. KEVLAR® offers a unique combination
of extremely high tensile strength, lasting resilience, low thermal expansion,
low coefficient of friction and wide chemical resistance.
RB7 AR KEVLAR® gold fibre packing is a true multi-service packing that is
well suited to the needs of many industries, particularly where physical
strength in a packing is required. The strength of KEVLAR® is ideal for use as
anti-extrusion, abrasion resistant, back-up rings, with other packing types, to
increase the life of any packing combination.
Applications
For pumps (rotary and reciprocating) and valves, including high pressure or
high mechanical loading conditions, against abrasive slurries, sewage, effluents,
water, oils, solvents and most chemicals.
The non-staining superior lubrication of RB7 AR leads to less wear and a
higher shaft speed capability than some other KEVLAR® packings.
Suitable for use in the paper industry.
RB8
Pressure Rating: 250 Bar
Bar Rotary Speed: 15 m/s
Temperature: -100 to +280°C
pH Range: 0-14
Product Information
RB8 TA combines the physical strength of KEVLAR® with the sealing
properties of TEFLON® fibres. The packing is further lubricated yarn by yarn
with PTFE dispersion and inert lubricants.
RB8 TA, KEVLAR® and PTFE fibre packing, is square inter-braided to
maximise the benefits of these two remarkable fibres, KEVLAR® fibres are
specially braided from the core to the corner-posts for dimensional stability
and to take maximum advantage, within the packing construction, of the yarns
steel-like strength. The TEFLON® yarns are braided to the packing surfaces to
enhance sealing capability.
Applications
Type RB8 TA combines low-friction, complete PH range chemical
resistance with high mechanical and dimensional strength. A wide ranging
packing, for specifications especially in high pressure conditions in chemical
or abrasive applications, where alternative single fibre packings may extrude
or cause significant shaft wear.
The construction and materials of RB8 TA makes this packing ideal for
piston sealing on reciprocating, chemical slurry and high pressure pumps.
RB9
Pressure Rating: 150 Bar
Bar Rotary Speed: 20 m/s
Temperature: -100 to +280°C
pH Range: 0-13
Product Information
RB9 K is manufactured from KEVLAR® Aramid fibres. In order to get
maximum benefit from this material, RB9 K is specially treated with a
high concentration of resilient, food quality lubricants and heavy PTFE
dispersion. The resulting packing significantly reduces the shaft wear
problems which have sometimes been associated with other KEVLAR®
packings and, with this increased lubrication, higher shaft speeds of up to
20m/s can be handled. RB9 K, KEVLAR® Aramid fibre lube packing, is a
durable, economic general service packing for 80% of plant needs. The
strength of fibre and construction of RB9 K leads to long packing life
with extended periods between necessary gland adjustments.
Applications
For rotary and reciprocating pumps, stern glands, hydraulic presses, mixers
and valves against abrasive slurries, sewage, effluents, water, oils, solvents and
all bar the most aggressive chemicals.
Non-staining lubrication and resilient performance make RB9 K ideal for use
in the paper industry.
RB10
Pressure Rating: 130 Bar
Bar Rotary Speed: 20 m/s
Temperature: -100 to +250°C
pH Range: 2-12
Product Information
RB 10 is a universal Paper-Mill and Sugar-Mill Packing, made of a unique
Aramidic composite fibre. This special fibre combines an exceptionally high
tensile strength (27,000 Kg/cm²), outstanding heat resistance, linked to low
friction and excellent cool running properties.
This is a strong Thermoset Fibre Packing but it is also extremely soft, assisted
by our exclusive, three-stage, lubrication process. The low-friction factor
reduces abrasion to up to 1/10 that of Aramidic Fibres, giving high reliability
and life, even in the most demanding of applications. RB10 is heat resistant
and will not glaze, like usual Paper Mill & PTFE Packings, even at high shaft
speeds.
Type RB10A is a very similar product in more economical form. It will
provide the same service but care must be taken not to over-tighten the gland
nor starve the packing of product or flush lubrication.
Applications
Universal Paper-Mill, Sugar-Mill and demanding application Packing, that is
white non-staining, with excellent chemical resistance and is suitable for Kraft
processes. Easy to cut and install, fast to break-in and with low susceptibility.
Model
Composition/Material
Media/Application
RB11
Pressure Rating:
Bar Rotary Speed:
RB11L: 200 BAR
RB11D: 400 BAR
RB11L: 12 m/s
RB11D: 1 m/s
Temperature: -100 to +300°C
pH Range: 1-13
Product Information
Type RB11L has been designed to replace and outlast traditional
packings, particularly in abrasive media and high pressure rotary applications.
RB11L is a squarebraided packing made from KEVLAR® Aramid
fibres thoroughly impregnated with pure Graphite powder and inert lubricant.
The performance of the packing is further enhanced with corrosion inhibitors
and Molybdenum Disulphide lubricant.
Robust MSA Style RB11D is inter-braided from KEVLAR® Aramid fibres
further re-inforced with Inconel wire and impregnated with pure graphite and a
corrosion inhibitor.
Applications
RB11L is a general purpose, wide-ranging, durable arduous duty packing.
For use in rotary, reciprocating and static applications particularly against
abrasive fluids, weak chemicals and water.
RB11D is a high strength valve packing also suitable for plunger
pumps, turbines and static seals. Particularly for use against oils, air, water,
hot steam and asphalt.
RB12
Pressure Rating: 250 Bar
Bar Rotary Speed: 25 m/s
Temperature: -150 to +280°C
pH Range: 0-14
Product Information
Type RB12 combines the benefits of the remarkable properties of two
outstanding gland packing fibres, G1 has the best combination of features of
any packingfibre but it may extrude or deteriorate in high mechanical loading
conditions. The addition of DU PONT’S KEVLAR® adds steel like strength.
RB12 G1 KEVLAR® combi-packing is square inter-braided to add the
strength of KEVLAR® where it is most needed on the corner posts for
dimensional stability and to resist extrusion. The G1 yarns are braided to the
packing surfaces to enhance smooth running and sealing capability.
RB12 is THE packing for extended life in high pressure or mechanical load
conditions, particularly on worn or large tolerance equipment and in the most
demanding chemical environments. Shaft wear is virtually eliminated, and
high speeds and aggressive chemicals can be handled, because of the
presence of G1 on sealing faces. Extrusion and gland maintenance is
negligible, even in the most arduous of applications, due to the inter-locked
braiding of KEVLAR®.
Applications
Combines mechanical strength with surface lubricity
to give a long lsting, high performance sealing, near
universal packing, for use in all rotary, reciprocating
and static gland applications.
RB13
Pressure Rating: 200 Bar
Bar Rotary Speed: 6 m/s
Temperature: -200 to +280°C
pH Range: 0-14
Product Information
TYPE RB13D is solely manufactured from pure PTFE in the form of fine
multi-filament yarns. The PTFE yarns are further vacuum impregnated with
PTFE dispersion to enable the packing to handle steam and gas services as
well as liquids.
This PTFE packing offers exceptional chemical resistance along with high
strength and low coefficient of friction. The interbraid construction and the
fact that RB13D will not harden in service over many years usage, ensures
that
“A VALVE PACKED WITH ROBUST MSA RB13D IS PACKED FOR
LIFE”.
As a packing seal, RB13D is far superior to machined or moulded PTFE rings
in that its tensile strength is 20 times higher, but at a fraction of the cost.
RB13D has a tensile strength of up to 50,000 PSI (3,500Kg/cm²).
Guarantee
RB13D is guaranteed to last the life of the valve into which it is packed.
Should the packing fail it will be replaced free of charge.
Applications
For low speed pumps, mixers, reciprocating rods and
valves against up to the strongest chemicals, solvents
and steam. Exceptions are molten and alkali metals
and fluorine.
RB14
Pressure Rating: 120 Bar
Bar Rotary Speed: 12 m/s
Temperature: -40 to +280°C
pH Range: 0-14
Product Information
Type RB14L is braided from pure PTFE fibres, in the form of multi-filament
yarns, vacuum impregnated with PTFE dispersion and saturated with
chemically resistant lubricants. The PTFE fibres are pre-shrunk and square
inter-braided to produce a dimensionally stable packing.
Type RB14L chemical pump packing exhibits high mechanical strength and
high operational stability under demanding operation conditions, in addition
to excellent non friction characteristics.
Shaft wear is virtually eliminated and RB14L is capable of performing in
service conditions far beyond conventional packings.
Applications
The enhanced lubrication and multi-filament yarn treatment of RB14L allows
greatly extended service capability in pumps up to 12m/s surface shaft speed.
For use against solvents and virtually all chemicals with the exceptions of
molten and alkali metals and fluorine.
Specify RB14L to replace RB13D in higher speed, or in the most corrosive
duties.
RB15
Pressure Rating: 120 Bar
Bar Rotary Speed: 12 m/s
Temperature: -40 to +280°C
pH Range: 0-14
Product Information
Type RB15S is braided from pure PTFE fibres, in the form of multi-filament
yarns, vacuum impregnated with PTFE dispersion and saturated with
chemically resistant lubricants. RB15S is manufactured solely from FDA
compliant materials and is thus especially suitable for industries and
applications where such Regulatory Compliance Packings are required.
The PTFE fibres are pre-shrunk and square inter-braided to
produce a dimensionally stable packing.
Type RB15S chemical pump packing exhibits high mechanical strength and
high operational stability under demanding operation conditions, in addition
to excellent non-friction characteristics.
Applications
Suitable for use in Pump, Valves, Reciprocating and Static Applications in
Pharmaceutical, Food and Beverage Industries.
RB16
Pressure Rating: 120 Bar
Bar Rotary Speed: 25 m/s
Temperature: -200 to +280°C
pH Range: 0-14
Product Information
RB16 is 100% GORE® fibre packing. This remarkable yarn is constructed
from PTFE and Graphite intimately blended and locked and then treated with a
high temperature, break-in lubricant. RB16 is an outstanding packing for
use in aggressive or arduous duties including the most difficult
chemical environments. It is essentially chemically inert over the entire PH
range. The unique combination of locked Graphite and PTFE creates a yarn
with very high thermal conductivity, that does not harden, shrink, swell nor dry
out and that is exceptionally smooth running with negligible shaft wear. User
experience with G1 fibre has shown that, in practically all cases, greatly
extended service life can be expected.
In order to obtain maximum benefit from this fibre, RB16 is square
interbraided via a CROSS-LOK® process. The construction of RB16
increases the durability of the packing and reduces the gland pressure
required to perform a seal. Periods between gland maintenance and packing
replacement are thus even further extended and Type RB16s CROSS-LOK®
braided helps overcome extrusion problems, which can be the one negative of
this fibre, particularly in lower quality braids.
Applications
For use wherever the value of the best quality and
material packing can be realised. Since the actual
purchase cost of a packing is typically only 3% ofthe
true utilisation cost, Robust Msa recommend these
PTFE GRAPHITE packings for all possible applications.
They will increase service life whilst minimising wear
and gland adjustments, against nearly all media in
static, rotary and reciprocating uses.
RB17
Pressure Rating: 120 Bar
Bar Rotary Speed: 25 m/s
Temperature: -200 to +280°C
pH Range: 0-14
Product Information
RB17 packing is manufactured from 100% Type G1 fibre. This newly
developed outstanding yarn is very similar in material construction to the
original GORE® GFO® fibre and has been manufactured to optimise
performance at an improved cost.
G1 yarn is constructed from PTFE tape and Graphite inter-locked to create a
true synergy between these two premier packing materials. High temperature
break-in and running lubricants are added to the yarns, prior to braiding in our
CROSS-LOK® lattice. The result is an exceptional process packing that gives,
often many times, longer service life in the vast majority of applications. With
the exceptions of high mechanical load (highly abrasive media or high
pressure) or temperatures above PTFE’s limit of 280°C, RB17 is ultimate
packing.
RB17 resists all chemicals across the entire Ph range (except Oleum, Aqua
Regia, fuming Nitric Acid and Fluorine), is self lubricating and does not
shrink, harden nor dry out. The packing is very cool running with exceptionally
good thermal conductivity thus practically eliminating shaft scoring.
Applications
For use wherever the value of the best quality and material packing can be
realised. Since the actual purchase cost of a packing is typically only 3% of
the true utilisation cost, Robust Msa recommend these PTFE GRAPHITE
packings for all possible applications. They will increase service life whilst
minimising wear and gland adjustments, against nearly all media in
static, rotary and reciprocating uses.
RB18
Pressure Rating: 150 Bar
Bar Rotary Speed: 1 m/s
Temperature: -100 to +280°C
pH Range: 0-14
Product Information
Type RB18 is supplied as a double construction of a 100% unsintered PTFE
core with a spiral covering of PTFE tape. RB18 provides the versatility of
an extruded malleable core with the additional strength and extrusion
resistance of the PTFE tape covering. The result is a low friction,
extrusion resistant, TEFLON® packing with near universal chemical
resistance.
RB18 will not harden nor shrink in application and provides an instant
packing and instant gasket on one very economical spool. In valves, wrap
RB18 round the stem to fill the gland (no need for cut rings), tighten
the gland
follower and the PTFE moulds to form a tight leak free seal. RB18 is
guaranteed to last the life of the valve to which it is fitted.
Applications
Universal PTFE sealing material for gasketing and long-life valve packing. For
practically all chemicals. Not suitable for liquid or gaseous oxygen.
RB19
Pressure Rating: 300 Bar
Bar Rotary Speed: 20 m/s
Temperature: -0 to +427°C
pH Range: 1-13
Product Information
Type RB19 is a 100% pure Graphite packing which is capable of near universal
application. RB19 is inter-braided from pure Graphite yarn impregnated fibre
by fibre with pure Graphite powder. The Graphite powder increases the natural
sealing effect of the Graphite yarns and acts as a surface lubricant to produce a
virtually non-scoring packing.
Graphite fibre is superior to any other yarn in the degree to which it combines
outstanding packing properties, namely; excellent thermal conduction, smooth
running, near universal chemical resistance and extreme temperature
capability. The use of RB19 pure Graphite fibre packing provides opportunity to
extend the use of the packed gland into extreme areas of speed, temperature
and chemical resistance. In more normal applications, the quality of Type
RB19 will result in maintenance savings many times in excess of the actual
packing cost.
Applications
For pumps and valves in extreme conditions or where the value of the best
quality packing can be realised. Universal chemical resistance (sole exceptions
are fuming nitric acid, oleum, aqua regia and fluorine). Suitable and certified
for use in nuclear power plants. Percentage of soluble chloride is less than
50ppm.
RB20
Pressure Rating: 300 Bar
Bar Rotary Speed: 30 m/s
Temperature: -0 to +650°C
pH Range: 0-14
Product Information
Type RB20 combines and maximises the performance of Expanded Graphite
and Graphite fibres. Expanded Graphite is the ultimate valve sealing material,
but it may extrude or deteriorate, in more, mechanically demanding, rotary
applications. The addition of Pan Graphite fibres adds strength and
increases heat dissipation, which further enhances the packings life and
performance.
RB20 is square inter-braided, with the Pan graphite fibres running from core to
the corner posts, to give dimensional stability and to resist extrusion. The
Expanded Graphite fibres are braided to the packing surfaces, to enhance
smooth running and sealing performance.
RB20 is THE Expanded Graphite packing for use in rotary applications. Shaft
wear and gland maintenance are virtually eliminated, as the packing is self lubricating
and includes, passive, corrosion inhibitors.
Applications
Maximum capability, rotary gland packing, for an extreme range of duties,
against virtually all chemicals and temperature conditions.
Model
Composition/Material
Media/Application
RB21
Pressure Rating: 200 Bar
Bar Rotary Speed: 15 m/s
Temperature: -150 to +350°C
pH Range: 3-12
Product Information
RB21N is square-braided from high quality Carbon yarns impregnated with
pure Graphite, special high temperature lubricants and Molybdenum
Disulphide. The Carbon yarns are dense braided to provide a near frictionless,
self-lubricating seal. Graphite powder provides non-migrating lubrication
between the packing and the shaft. The non glazing, high temperature lubricant
protects during the packing break-in period. The addition of Molybdenum
Disulphide gives high temperature and high pressure lubrication with shaft wear
protection even when contact pressures between packing and shaft are
excessive.
Type RB21N Carbon fibre packing is swift to break-in because of its low
friction, lubricant intensive constituents and these characteristics allow its
extended life in arduous duties. Type RB21 can be used in services
where many other lubricated fibre packings fail, due to migration or loss of
lubrication and consequent fibre burning, hardening or glazing.
Type RB21IW is Inconel Wire re-inforced for high pressure static applications
to 350 Bar to give an exceptional capability, performance and lasting valve
packing for use up to 1 m/s.
Applications
RB21 is ideal as a rotary duty, multi-service, packing particularly for boiler
feed.
RB22
Pressure Rating: 300 Bar
Bar Rotary Speed: 15 m/s
Temperature: -200 to +600°C
pH Range: 0-14
Product Information
Types RB22 and RB22P are braided packings, constructed from 100%Grafan
yarns, to form a truly exceptional capabilities and performance, pure
Expanded Graphite packing. Type RB22P is additional re-inforced with
Inconel Wire to create the ideal packing for high temperatures, high pressure
valves.
Under compression in the gland, Types RB22 and RB22P die-form into
packing rings like RB DIE FORMED, whilst offering the advantage of
avoiding the need to laboriously wrap RB ribbon tape around valve stems or
the cost of an inventory of many sizes of individual RB dieformed rings.
Types RB22 and RB22P can be merely cut to length and spiralled into the
gland. There is no need for individual cut rings, as is the case with
conventional braided packings. Granfan is self-lubricating and will not
shrink nor harden nor dry out in use.
Applications
Extreme condition, long life and zero leakage packing for all uses, up to high
temperature, high pressure, high speed applications on pumps, valves, mixers,
agitators, expansion joints, ball valve seats and other static seals. Types
RB22 and RB22P are designed for use in static applications only.
Against all acids, alkalis and solvents (except very strong oxidents),
gases, feed water and superheated, or saturated, steam.
RBGF
Pressure Rating: 200 Bar
Bar Rotary Speed: 1 m/s
Temperature: -200 to +600°C
pH Range: 0-14
Product Information
Grafan material is essentially pure carbon in Graphite form processed into
flexible foil material without any fillers, binders nor other additives. The
product is self lubricating, dimensionally stable, impervious to gases and fluids,
and shows exceptional temperature and chemical resistance. Grafan offers
unrivalled sealing capabilities under extreme temperature, media and pressure
conditions giving extended packing life.
Graphite in this form is self-lubricating with a low coefficient of friction
(comparable to Teflon), high thermal conductivity and permanent volumetric
elasticity (spring back) which results in no volume reduction (compression set)
in use. Resilient with ideal fluid and gas sealing characteristics and extreme
capabilities, Grafan offers the ultimate range and performance in a packing
material.
RB GRAPHITE FOIL is a crimped Grafan ribbon Tape, available from
6mm to 75mm wide, for in-situ packing of valve stems and then it is easily
compressed into a uniform packing ring. Using this system, a small tape
inventory can pack any size of gland with superior service results.
Applications
Extreme condition, long life and zero leakage packing
for all uses, up to high temperature, high pressure,
high speed applications on pumps, valves, mixers,
agitators, expansion joints, ball valve seats and other
static seals. Types RB MOULDED RING and RB
GRAPHITE FOIL are designed for use in static applications only. Against all acids, alkalis and solvents
(except very strong oxidents), gases, feed water and
superheated, or saturated, steam.
RBMR
Pressure Rating: 200 Bar
Bar Rotary Speed: 1 m/s
Temperature: -200 to +600°C
pH Range: 0-14
Product Information
Type RB Die-Formed are produced by compressing an exact amount of
Grafan Ribbon Tape in precision metal moulds. The result: uniform quality,
dense, smooth finished, close tolerance, Die-Formed Rings.
A large range of Grafan rings are available ex-stock. Any custom size or shape
can be produced, usually from existing tooling with a range of densities available
from 1 to 1/8 gm/c.c. VR2 die-formed rings are supplied just to size for ease
of fitting. When energised in the gland, the rings compress to effect a perfect
leak-free seal on valves. It is well proven that valves packed with this material
have been in service for years, leak free without maintenance, where previous
braided packings have failed in weeks or months.
Applications
Extreme condition, long life and zero leakage packing for all uses, up to high
temperature, high pressure, high speed applications on pumps, valves, mixers,
agitators, expansion joints, ball valve seats and other static seals. Types RB
MOULDED RING and RB GRAPHITE FOIL are designed for use in
static applications only. Against all acids, alkalis and solvents (except very
strong oxidents), gases, feed water and superheated, or saturated, steam.
FPE
Not Available
Product Information
These flexible extractors are designed to facilitate the removal of old packing
of any size. The long flexible shank of the extractors makes access easy, even
to those glands in the most awkward positions. The hardened and tempered
steel screw end is designed to give maximum penetration into the packing.
The Extractors are supplied in four sizes, as follows:
SIZE No.1 for 1/8” (3.2mm), 3/16” (5mm) and 1/4” (6.5mm) packing.
SIZE No.2 for 5/16” (8mm) and 3/8” (9.5mm) packing.
SIZE No.3 for 7/16” (11mm) and 1/2” (12.5mm), 9/16” (14.5mm) and 5/8” (16mm) packing.
SIZE No.4 for 3/4” (19mm) packing and upward.
Extractors may be ordered in any quantity of individual size or in boxed sets
comprising one each of the four sizes.
The pattern ”C” extractors have the corkscrew tip integral with the extractor
while the pattern “R” has a replaceable tip. The preferred type should be
specified when ordering.
RB23
Pressure Rating: 100 Bar
Bar Rotary Speed: 12 m/s
Temperature: -30 to +120°C
pH Range: 2-14
Product Information
This packing is made from twisted Cotton yarns thoroughly impregnated, during
and after braiding, with PTFE dispersion and special inert lubricants. The
addition of PTFE dispersion widens the chemical resistance of RB23
compared to standard graphite or plain Cotton packings. The special
lubricants ease fibre to metal contact and embody very high lubricating
properties, tenaciously adhering to metal shafts.
Type RB23 is a soft strong, absorbent, Cotton packing that prevents shaft
wear because the cotton constantly absorbs, the liquid being pumped along
with any abrasive media. RB23 provides high flexibility with a very low
co-efficient of friction and maintains a soft, moist pliable running face to
the shaft.
Applications
The special lubrication of Type RB23 is sea-water and slurry resistant. RB23
can be used for sealing stern glands, pumps and valves against water,
sewage, solvents, oils, fats and abrasive solutions.
RB24
Pressure Rating: 100 Bar
Bar Rotary Speed: 12 m/s
Temperature: -30 +120°C
pH Range: 2-12
Product Information
Type RB24 is an outstanding PTFE impregnated and lubricated packing,
made to replace traditional PTFE asbestos packings, without sacrificing the
strength and natural sealing qualities of Asbestos. Asbestos replacement
packings normally have a payoff in terms of capabilities of the fibre used, or in
the terms of cost. RB24 is a low cost, quality packing giving outstanding
service life. Vulcan RB24 is braided from natural Ramie fibres which are
extremely strong and therefore highly resistant to wear and to rotting. A
long term PTFE impregnation is bound to each yarn in a special process and
the packing is further treated with inert lubricants.
RB24 PTFE Ramie fibre packing is especially suitable for aqueous
mixtures containing abrasive media such as found in the water, sewage, paper
and marine industries. RB24 is non-staining and smooth running to give a
high level of shaft protection. This packing is characterised by its long
service life with high mechanical strength and excellent volumetric stability.
Applications
Multi-purposes pump and valve packing for exceptional trouble-free service
life against general and abrasive media. For use in the water, marine, brewing,
food, chemical, petro-chemical and paper industries.
RB25
Pressure Rating: 130 Bar
Bar Rotary Speed: 10 m/s
Temperature: -30 to +120°C
pH Range: 2-12
Product Information
RB25is braided from selected, long fibre, heavy duty, flax yarns thoroughly
impregnated yarn by yarn with PTFE and treated with break-in lubricants. The
packing is designed to give a very low coefficient of friction, resistance to
wear and rotting, good compressibility, high flexibility, high tensile strength
and comparative ease of installation and take-up especially on large crosssections.
RB25 PTFE Flax packing is especially designed to seal large crosssectional
areas and is ideal to solve the exacting sealing requirements of stern
glands in the marine field. The packing will also be of superior service in
heavy reciprocating machinery, rotary applications handling abrasive media
and heavy duty static applications such as tank lid seals.
Applications
For use in the paper, marine, chemical , pharmaceutical, sugar and water
industries against salt water, slurries, hydrocarbons, oils, greases and solvents.
RB26
Pressure Rating: 50 Bar
Bar Rotary Speed: 8 m/s
Temperature: -20 to +120°C
pH Range: 5-9
Product Information
type RB26 is square-braided from long, heavy duty natural fibre yarns. These
high-strength yarns are thoroughly impregnated, before and after braiding,
with a specially blended lubricant.
The packing is designed to give a very low coefficient of friction, resistance to
wear and rotting, good compressibility, high flexibility, high tensile strength and
ease of installation.
RB26 is an excellent, general purpose packing especially for water duties. Its
resilience, low shaft wear, ease of fitting and economic cost makes
RB26 an effective choice for many standard applications.
Applications
Type RB26 is suitable for all general water-based applications in pumps and
valves, up to 120° C.
RB27
Pressure Rating: 50 Bar
Bar Rotary Speed: 8 m/s
Temperature: -20 +120°C
pH Range: 4-10
Product Information
RB27 is a densely braided, cotton packing impregnated with a blend of
mineral lubricants and graphite. Special lubricants are added to the fibres
during and after braiding. These preparations produce a thorough lubrication
that will not readily migrate, leading to minimal shaft friction and wear and
extended packing life.
RB27 lubricated Graphited Cotton is a quality sample of a traditional water
pump packing RB27 is designed to give low-cost, good packing life in
general fluid handling services.
Applications
Dynamic applications handling water, oil and ammonia products. General
purpose pump and valve packing for water duties.
