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Official stockist for
James Walker Products |
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| KEVLAR
ARAMID FIBRES |
| TYPE
VK4B |
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| Service
Capability |
| Pressure
Rating: 400bar |
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Rotary
Speed: 15m/s |
| Temperature:
-100+280°C |
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pH
range: 1 - 13 |
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Product
Information
VK4B 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 at extremely high tensile
strength, lasting resilience, low thermal expansion, low coefficient
of friction and wide chemical resistance.
VK4B KELVAR
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 KELVAR 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 VK4B leads to less
wear and a higher shaft speed capability than some other KELVAR
packings. Suitable for use in the paper industry. |
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| TYPE
VK4T |
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| Service
Capability |
| Pressure
Rating: 250bar |
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Rotary
Speed: 15m/s |
| Temperature:
-100+280°C |
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pH
range: 0 - 14 |
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Product
Information
VK4T
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.
VK4T,
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
VK4T combines low-friction, complete pH range chemical resistance
with high mechanical and dimensional strength. A wide ranging
packing, for specification 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 VK4T makes this packing ideal for piston
sealing on reciprocating, chemical, slurry and high pressure
pumps. |
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| TYPE
VK4 |
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| Service
Capability |
| Pressure
Rating: 150bar |
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Rotary
Speed: 20m/s |
| Temperature:
-100+280°C |
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pH
range: 1 - 13 |
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Product
Information
VK4
is manufactured from KEVLAR Aramid fibres. In order to get maximum
benefit from this material, VK4 is specially treated with a
high concentration of resilient, food quality lubricants and
heavy PTFE dispersion. The resulting pocking 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. VK4, KEVLAR
Aramid fibre lube packing, is a durable, economic general service
packing for 80% of plant needs. The strength of fibre and construction
of VK4 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 VK4
ideal for use in the paper industry. |
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| Please contact our sales office for further information |
| Disclaimer - The information contained herein is given in good faith. No liability will be accepted in relation to the same. Sampson Gaskets Limited exclude all conditions or warranties, express or implied as to their products and/or their fitness for any particular purpose |
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Unit 22, Leigh Road,
Haine Industrial Estate,
Ramsgate, Kent CT12 5EU England |
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| HEAD OFFICE & FACTORY
Telephone:
(01843) 854800
(08700) 349990
Fax:
(01843) 854801
(08700) 349991
Email:
UK Sales -click here
Export Sales -click here |
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NORTHERN OFFICE
Telephone:
(01924) 886450
Fax:
(01924) 886457
Email:
Northern Sales -click here |
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