PTFE packing cord

 PTFE packing cord is profiled products nespechennogo fluoroplastic-4D stamps "U" and "T" (GOST 14906-77) containing various lubricants, with or without lubrication.

 PTFE packing cord is intended for use as chemical-resistant self-lubricating packing and gasket material in the nodes of valves, pumps and seals of various chemical equipment, pipelines and equipment in the food and pharmaceutical industries.

 Operating temperature range — from minus 60 ° C to plus 150 ° C (grade B and FUM-FUM-F) and up to plus 200 ° C (Brand FUM-O) at a pressure medium to 6,3 MPa (64 kgf/cm2) Depending on the application of FUM produced the following brands:

PTFE packing cord-V — for a variety of aggressive media of the common type. Contains lubrication "B"; FUM-F — for special working conditions. Contains lubricant "F";

 PTFE packing cord-O — for ultrapure fluids and strong oxidants. Does not contain grease. FUM all brands can withstand the allowable total absorbed dose of radiation up to 103 GR (10 5 rad) without a change in performance. Guaranteed shelf life of FUM-O — 20 years, FUM-B and FUM-F — 14 years from the date of manufacture.

 PTFE packing cord is made of three sections: round, square and rectangular. In consultation with the consumer making FUM other shapes and sizes (physical and mechanical properties while not normalized) and the delivery of material into pieces of smaller length.

 Minimum length PTFE packing cord all brands of 2 m.

 

Technical characteristics	FUM-V	FUM-O	FUM-F
Durability at rupture, (kgs/sm2), not less	3,5 (35)	3,0 (30)	2,0 (20)
Relative lengthening at rupture, % not less	100	50	60
Range of temperatures, t°С	200...+150	200...+200	-200...+150
Pressure of environment, МPа (kgs/sm2)	6,3	6,3	6,3