Kel-f PCTFE Seals Used for Cryogenic Valve

PCTFE (polychlorotrifluoroethylene), commonly referred to as Kel-F® or Neoflon®, is a fluoropolymer material with outstanding strength, stiffness, and dimensional stability.

LNG – Liquefied Natural Gas – is a mixture of hydrocarbons composed mainly of methane, but with varying levels of ethane, propane, butane and other gases present in natural gas. In general, LNG has a boiling temperature between -166°C and -57°C at atmospheric pressure.

 The PCTFE Seals or PCTFE seat is widely used in LNG or cryogenic applications. PCTFE's stability at low temperature makes it an ideal choice as a ball valve seat or butterfly valve seat material. 

We can design and manufacture PCTFEseals as per drawing or sample

Application for PCTFE seals or PCTFE gaskets

· Cryogenic and chemical processing components

· Seals and gaskets

· Aerospace valve seats, pump parts, impellers, diaphragms, and plugs

· Laboratory instruments

· Nuclear service/high radiation exposure

· Liquid oxygen and liquid nitrogen valve lining

Main properties of PCTFE

Especially suitable for cryogenic applications

Excellent resistance to creep

Dimensional stable over a wide temperature range

Extremely low gas permeability

FDA approval

Transparent and coloured compounds

lWorking temperature from -240°C to +120?C