BV VT80 Patriot Fluid Power
Seal Information (BV VT80)
Block Vee – Symmetrical U-Cup

Block Vee Style U-Cups, also referred to as Huva Cup, Pruva U-Cups and 84 Series U-Cups, are very popular in industrial cylinders and can be used as piston or rod seals. Back-up rings are available and required for use above 500 PSI. When used with back-up rings, system pressure should not exceed 2,500 PSI.

TEMPERATURE RANGE :-15°F (-26°C) TO +400°F (204°C) Depending on compound
PRESSURE RANGE :Varies based on Diametrical Clearance (See Chart)
Chemical Compatibility : – Water and steam
– Aliphatic Hydrocarbons (petroleum oils, mineral oil, mineral grease, diesel fuel, fuel oils, butane, propane, natural gas) vegetable oil & grease.
– Aromatic hydrocarbons (toluene, benzene)
– Fuels, and fuels with methanol
– Chlorinated hydrocarbons (trichlorethylene & carbon tetrachloride)
– Non-flammable hydraulic fuels-HFD
– Silicone oils & grease
– Very good ozone & weather-aging resistance
– High vacuum
Fluorocarbon, also known as FKM, FPM in Europe, and Viton ® are rubber compounds frequently used to resist extreme temperatures and harsh chemicals. The strong carbon-fluorine bonds that make up the polymer structure provide high thermo-chemical resistance, giving excellent ageing characteristics, such as low compression set at elevated temperatures.