PTFE Fiber Seals | McMaster-Carr

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42 Products

Food Industry Chemical-Resistant Packing Seals

Made of FDA-listed material for use with food and beverage, these PTFE seals are lubricated with mineral oil. Use them in pumps for applications involving acids, alkalies, brines, and solvents. Cut these seals to size with a knife; then pack them into place.

Wd.	Ht.	Max. Pressure, psi	Max. Pressure in Pumps, psi	Max. Speed, fpm	Temperature Range, °F	pH Resistance	Specifications Met	Color		5 ft.	10 ft.	25 ft.
1/8"	1/8"	250	250	1,200	-400° to 500°	0-14	FDA Compliant 21 CFR 177.1550	White	00000000	000000	000000	000000
3/16"	3/16"	250	250	1,200	-400° to 500°	0-14	FDA Compliant 21 CFR 177.1550	White	00000000	00000	00000	00000
1/4"	1/4"	250	250	1,200	-400° to 500°	0-14	FDA Compliant 21 CFR 177.1550	White	00000000	00000	00000	000000
5/16"	5/16"	250	250	1,200	-400° to 500°	0-14	FDA Compliant 21 CFR 177.1550	White	00000000	00000	00000	000000
3/8"	3/8"	250	250	1,200	-400° to 500°	0-14	FDA Compliant 21 CFR 177.1550	White	00000000	00000	000000	000000
7/16"	7/16"	250	250	1,200	-400° to 500°	0-14	FDA Compliant 21 CFR 177.1550	White	00000000	000000	000000	000000
1/2"	1/2"	250	250	1,200	-400° to 500°	0-14	FDA Compliant 21 CFR 177.1550	White	00000000	000000	000000	000000
9/16"	9/16"	250	250	1,200	-400° to 500°	0-14	FDA Compliant 21 CFR 177.1550	White	000000000	000000	000000	000000
5/8"	5/8"	250	250	1,200	-400° to 500°	0-14	FDA Compliant 21 CFR 177.1550	White	00000000	000000	000000	000000
11/16"	11/16"	250	250	1,200	-400° to 500°	0-14	FDA Compliant 21 CFR 177.1550	White	000000000	000000	000000	000000
3/4"	3/4"	250	250	1,200	-400° to 500°	0-14	FDA Compliant 21 CFR 177.1550	White	00000000	000000	000000	000000
7/8"	7/8"	250	250	1,200	-400° to 500°	0-14	FDA Compliant 21 CFR 177.1550	White	00000000	000000	000000	000000
1"	1"	250	250	1,200	-400° to 500°	0-14	FDA Compliant 21 CFR 177.1550	White	00000000	000000	000000	000000

Steam- and Chemical-Resistant Packing Seals

Fill irregularities in valve stem with these soft PTFE seals. They are self-lubricating. Use them in applications involving acids, alkalies, brines, and solvents. Cut these seals to size with a knife; then pack them into place.

Wd.	Temperature Range, °F	pH Resistance	Specifications Met	Color	For Use With	Lg., ft.		Each
3/32"	-450° to 550°	0-14	FDA Compliant 21 CFR 177.1550	White	Acids, Alkalies, Beverage, Brines, Food, Oil, Solvents, Water	25	0000000	000000
3/32"	-450° to 550°	0-14	FDA Compliant 21 CFR 177.1550	White	Acids, Alkalies, Beverage, Brines, Food, Oil, Solvents, Water	50	0000000	00000
1/8"	-450° to 550°	0-14	FDA Compliant 21 CFR 177.1550	White	Acids, Alkalies, Beverage, Brines, Food, Oil, Solvents, Water	25	00000000	00000
5/32"	-450° to 550°	0-14	FDA Compliant 21 CFR 177.1550	White	Acids, Alkalies, Beverage, Brines, Food, Oil, Solvents, Water	25	0000000	00000
3/16"	-450° to 550°	0-14	FDA Compliant 21 CFR 177.1550	White	Acids, Alkalies, Beverage, Brines, Food, Oil, Solvents, Water	25	00000000	00000
7/32"	-450° to 550°	0-14	FDA Compliant 21 CFR 177.1550	White	Acids, Alkalies, Beverage, Brines, Food, Oil, Solvents, Water	15	0000000	00000
1/4"	-450° to 550°	0-14	FDA Compliant 21 CFR 177.1550	White	Acids, Alkalies, Beverage, Brines, Food, Oil, Solvents, Water	12	00000000	00000
9/32"	-450° to 550°	0-14	FDA Compliant 21 CFR 177.1550	White	Acids, Alkalies, Beverage, Brines, Food, Oil, Solvents, Water	9	0000000	00000
5/16"	-450° to 550°	0-14	FDA Compliant 21 CFR 177.1550	White	Acids, Alkalies, Beverage, Brines, Food, Oil, Solvents, Water	7	00000000	00000
3/8"	-450° to 550°	0-14	FDA Compliant 21 CFR 177.1550	White	Acids, Alkalies, Beverage, Brines, Food, Oil, Solvents, Water	7	00000000	00000
1/2"	-450° to 550°	0-14	FDA Compliant 21 CFR 177.1550	White	Acids, Alkalies, Beverage, Brines, Food, Oil, Solvents, Water	12	00000000	00000

Chemical-Resistant Packing Seals

These lubricated PTFE fiber seals stand up to acids, alkalies, brines, and solvents. Use them in pumps and valves. Cut these seals to size with a knife; then pack them into place.

Wd.	Ht.	Max. Pressure, psi	Max. Pressure in Pumps, psi	Max. Pressure in Valves, psi	Max. Speed, fpm	Temperature Range, °F	pH Resistance	Color	For Use With		5 ft.	10 ft.	25 ft.
1/8"	1/8"	4,000	300	4,000	2,000	-450° to 500°	0-14	White	Acids, Alkalies, Brines, Oil, Solvents, Water	00000000	000000	000000	000000
3/16"	3/16"	4,000	300	4,000	2,000	-450° to 500°	0-14	White	Acids, Alkalies, Brines, Oil, Solvents, Water	00000000	00000	00000	000000
1/4"	1/4"	4,000	300	4,000	2,000	-450° to 500°	0-14	White	Acids, Alkalies, Brines, Oil, Solvents, Water	00000000	00000	00000	000000
5/16"	5/16"	4,000	300	4,000	2,000	-450° to 500°	0-14	White	Acids, Alkalies, Brines, Oil, Solvents, Water	00000000	00000	000000	000000
3/8"	3/8"	4,000	300	4,000	2,000	-450° to 500°	0-14	White	Acids, Alkalies, Brines, Oil, Solvents, Water	00000000	00000	000000	000000
7/16"	7/16"	4,000	300	4,000	2,000	-450° to 500°	0-14	White	Acids, Alkalies, Brines, Oil, Solvents, Water	00000000	000000	000000	000000
1/2"	1/2"	4,000	300	4,000	2,000	-450° to 500°	0-14	White	Acids, Alkalies, Brines, Oil, Solvents, Water	00000000	000000	000000	000000
5/8"	5/8"	4,000	300	4,000	2,000	-450° to 500°	0-14	White	Acids, Alkalies, Brines, Oil, Solvents, Water	00000000	000000	000000	000000
3/4"	3/4"	4,000	300	4,000	2,000	-450° to 500°	0-14	White	Acids, Alkalies, Brines, Oil, Solvents, Water	00000000	000000	000000	000000

Hard Chemical-Resistant Packing Seals

These seals are made of PTFE fiber without a lubricant, so they’re harder than other chemical-resistant packing seals to handle high-pressure valve applications. Use them with acids, alkalies, brines, and solvents. Cut these seals to size with a knife; then pack them into place.

Wd.	Ht.	Max. Pressure, psi	Max. Pressure in Valves, psi	Temperature Range, °F	pH Resistance	Color	For Use With		5 ft.	10 ft.	25 ft.
1/8"	1/8"	2,000	2,000	-400° to 500°	0-14	White	Acids, Alkalies, Brines, Oil, Solvents, Water	00000000	000000	000000	000000
3/16"	3/16"	2,000	2,000	-400° to 500°	0-14	White	Acids, Alkalies, Brines, Oil, Solvents, Water	00000000	00000	00000	00000
1/4"	1/4"	2,000	2,000	-400° to 500°	0-14	White	Acids, Alkalies, Brines, Oil, Solvents, Water	00000000	00000	00000	000000
5/16"	5/16"	2,000	2,000	-400° to 500°	0-14	White	Acids, Alkalies, Brines, Oil, Solvents, Water	00000000	00000	00000	000000
3/8"	3/8"	2,000	2,000	-400° to 500°	0-14	White	Acids, Alkalies, Brines, Oil, Solvents, Water	00000000	00000	000000	000000
7/16"	7/16"	2,000	2,000	-400° to 500°	0-14	White	Acids, Alkalies, Brines, Oil, Solvents, Water	00000000	000000	000000	000000
1/2"	1/2"	2,000	2,000	-400° to 500°	0-14	White	Acids, Alkalies, Brines, Oil, Solvents, Water	00000000	000000	000000	000000
5/8"	5/8"	2,000	2,000	-400° to 500°	0-14	White	Acids, Alkalies, Brines, Oil, Solvents, Water	00000000	000000	000000	000000
3/4"	3/4"	2,000	2,000	-400° to 500°	0-14	White	Acids, Alkalies, Brines, Oil, Solvents, Water	00000000	000000	000000	000000