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PTFE is a fluorocarbon resin that is isostatically compression molded into various shapes and configurations. It is chemically resistant to all chemicals and solvents with the exception of some molten alkali metals, molten sodium hydroxide, elemental fluorine and certain flourination agents. At Partek we use PTFE for machining the bodies and components of various valves and manifolds. It offers chemical resistance and stability at high temperatures.

Modified PTFE material is used primarily for diaphragms and bellows in our products. This material has the same processing and chemically resistant characteristics as the standard product but offers superior cycle life and integrity in diaphragm products.

PFA is a copolymer of tetrafluoroethylene and perfluoroalkyl vinyl ether. The resultant polymer contains the carbonfluorine backbone chain typical of PTFE, but unlike PTFE, does not require special fabricating techniques. PFA pellets have good melt flow characteristics that allow for processing via extrusion, compression, blow, transfer and injection molding methods. It has outstanding chemical and solvent resistant characteristics over a temperature range even greater than PTFE. PFA is offered in various grades of purity and cleanliness making it the material of choice for the semiconductor market.


Ball Valves
Check Valves
Miniature Pneumatic Diaphragm Valves
Needle Valves PFA
Needle Valves PTFE
Plug Valves
Relief Valves
Sampling Valves
Slurry Valves, Manual
Slurry Valves, Pneumatic
Solenoid Valves
Stopcock Valves, PFA
Stopcock Valves, PTFE
1in. Manual Diaphragm Valves
1 in. Pneumatic Diaphram Valves
1/2 in. Manual Diaphram Valves. 2 way multi-turn
1/2 in. Manual Diaphragm Valves. 2 way 1/4 Turn
1/2 in. Manual Diaphragm Valves. 3 way
1/2 in. Pneumatic Diaphragm Valves. 2 way
1/2 in. Pneumatic Diaphragm Valves. 2 way adjustable bypass
1/2 in. Pneumatic Diaphragm valves. 3 way
1/4 in. Manual Diaphragm valves. 2 way
1/4 in. Manual Diaphragm valves. 3 way
1/4 in. Pneumatic Diaphragm valves. 2 way
1/4 in. Pneumatic Diaphragm valves. 3 way
1/8 in. Pneumatic Diaphragm valves
3/4 in. Manual Diaphragm valves
3/4 in. Pneumatic Diaphragm valves
Partek PFA/PTFE Valves Catalogue   
MV-6 Series Catalogue. PTFE Ball Valves   

For more information click on the pdf image above for full specifications, call KC Controls on 01293 538940 or send us an e-mail to