Vulcan Seals

Vulcan VP1 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. Vulcan VP1 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, Vulcan VP1 is square inter-braided via a CROSS-LOCK process. The construction of VP1 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 VP1s CROSS-LOCK braiding helps overcome extrusion problems, which can be the one negative of this fibre, particularly in lower quality braids. Type VP1 standard spool length is 8 metres. Custom lengths can be available - please contact us using the form. 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, Vulcan recommend this PTFE GRAPHITE packing 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. Features Chemically inert over the entire pH rangeHigh thermal conductivityIncrease service life whilst minimising wear and gland adjustmentsOperating Limits Pressure Rating: 120 BarRotary Speed: 25 msTemperature: -200C to +280CpH Range: 0 - 14Limits are for guidance only. Product performance is dependent on materials and other operating conditions.

Vulcan Grafan material is essentially pure carbon in Graphite form processed into flexible foil material without any fillers, binders or other additives. The product is self-lubricating, dimensionally stable, impervious to gases and fluids, and shows exceptional temperature and chemicalresistance. 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 volumetricelasticity (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. Vulcan Type VR1 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. Type VR1 standard spool length is 8 metres. Custom lengths can be available - please contact us using the form. Applications: An 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 VR1 is designed for use in static applications only. Against all acids, alkalis and solvents (except very strong oxidants), gases, feed water and superheated, or saturated steam. Features Exceptional temperature and chemical resistanceDesigned for use in static applicationsSelf lubricating, dimensionally stable and impervious to gases and fluidsOperating Limits Pressure Rating: 200 BarRotary Speed: 1 msTemperature: -200C to +3000C InertTemperature: -200C to +3000C In AirpH Range: 0 - 14