PTFE Fiber Gaskets | McMaster-Carr

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	System of Measurement System of Measurement

Inch

	Width Width

	Length Length

	Material Material	Show

PTFE Fiber

	Material Material	Hide

	Color Color

	White

	Maximum Temperature Maximum Temperature

500° to 999° F

	Minimum Temperature Minimum Temperature

-250° F or less

	Maximum Pressure Maximum Pressure

	For Use With For Use With

	Maximum Pressure in Valves Maximum Pressure in Valves

	Height Height

	Maximum Speed Maximum Speed

	Maximum pH Resistance Maximum pH Resistance

	Maximum Pressure in Steam Maximum Pressure in Steam

725 psi

Not Rated

	Maximum Pressure in Pumps Maximum Pressure in Pumps

250 psi

300 psi

Not Rated

	Minimum pH Resistance Minimum pH Resistance

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Specifications Met Specifications Met

FDA Compliant

	Environment Environment

Food and Beverage

	Filler Material Filler Material

Mineral Oil

	Manufacturer Manufacturer

41 Products

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
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
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
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

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	00000000

Premium Steam- and Chemical-Resistant Packing Seals

Made of Gore PTFE, these premium seals are soft, so they conform to fill irregularities caused by wear in valve stems. 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.	Max. Pressure, psi	Max. Pressure in Valves, psi	Max. Pressure in Steam, psi	Max. Speed, fpm	Temperature Range, °F	pH Resistance	Color	For Use With	Lg., ft.		Each
3/32"	725	725	725	140	-450° to 600°	0-14	White	Acids, Alkalies, Brines, Oil, Solvents, Water	16	00000000	000000
5/32"	725	725	725	140	-450° to 600°	0-14	White	Acids, Alkalies, Brines, Oil, Solvents, Water	16	00000000	00000
1/4"	725	725	725	140	-450° to 600°	0-14	White	Acids, Alkalies, Brines, Oil, Solvents, Water	16	00000000	00000
5/16"	725	725	725	140	-450° to 600°	0-14	White	Acids, Alkalies, Brines, Oil, Solvents, Water	16	00000000	000000
3/8"	725	725	725	140	-450° to 600°	0-14	White	Acids, Alkalies, Brines, Oil, Solvents, Water	16	00000000	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	00000	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

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	00000	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	00000	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