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KEL-F PCTFE Seal Used For LNG And Cryogenic Valve

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                                     Kel-f PCTFE Seals


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


Model Number:PCTFE SEAL, PCTFE Washer, PCTFE gasket
Certification:FDA, ROHS, REACH, ISO，MSDS,tdS
Raw material brandDAIKIN Neoflon PCTFE M-300H, M-400H
Minimum Order Quantity:100 PCS
Price:Negotiable
Packaging Details:Carton & Wooden Box
Delivery Time:Around 20 days
Payment Terms:Negotiable
Supply Ability:100,000pcs /month

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

● Working temperature from -240°C to +120˚C

PCTFE seal rings or PCTFE seat is an ideal choice as a ball valve seat or butterfly valve seat material used in cryogenic applications

Application fields

● 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 linings

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