Patch Clamps | McMaster-Carr

	For Pipe Size For Pipe Size

1/2
3/4
1
1 1/4
1 1/2
2
2 1/2
3
3 1/2
4
5
6
8
10
12

	For Pipe Material For Pipe Material

	For Use With For Use With

Air

Steam

	For Pipe OD For Pipe OD

	Number of Bolts Number of Bolts

	Length Length

12"

	Maximum Pressure Maximum Pressure

25 psi @ 72° F

60 psi @ 72° F

100 psi @ 72° F

	Maximum Temperature Maximum Temperature

180° F

300° F

	Minimum Temperature Minimum Temperature

-20° F

Not Rated

	Gasket Material Gasket Material

Buna-N Rubber

EPDM Rubber

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

DFARS Specialty Metals
COTS-Exempt

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63 Products

Low-Pressure Pipe Repair Clamps for Air

For Use With: Air
Temperature Range: -20° to 180° F
For Pipe Material: Aluminum, Copper, Iron, PVC Plastic, Steel

Also called patch clamps, use these clamps to repair pinholes and cracks in pipe without having to disassemble your system. Clamps are 304 stainless steel for very good corrosion resistance.

3" Lg.
For Pipe OD	For Pipe Size	No. of Bolts	Max. Pressure	Max. Vacuum	Material	Lug Material	Nut Material	Bolt Material	Gasket Material	Features		Each
0.84"	1/2	1	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	000000
1.05"	3/4	1	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
1.315"	1	1	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
1.66"	1 1/4	1	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
1.9"	1 1/2	1	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
2 3/8"	2	1	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
2 7/8"	2 1/2	1	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
3 1/2"	3	1	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
4"	3 1/2	1	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
4 1/2"	4	1	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
5.563"	5	1	60 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
6 5/8"	6	1	60 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
8 5/8"	8	1	60 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
10 3/4"	10	2	25 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	Two-Piece Design	00000000	00000
12 3/4"	12	2	25 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	Two-Piece Design	00000000	00000
6" Lg.
0.84"	1/2	2	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
1.05"	3/4	2	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
1.315"	1	2	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
1.66"	1 1/4	2	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
1.9"	1 1/2	2	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
2 3/8"	2	2	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
2 7/8"	2 1/2	2	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
3 1/2"	3	2	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
4"	3 1/2	2	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
4 1/2"	4	2	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
5.563"	5	2	60 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
6 5/8"	6	2	60 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
8 5/8"	8	2	60 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	00000000	00000
10 3/4"	10	4	25 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	Two-Piece Design	00000000	000000
12 3/4"	12	4	25 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	Two-Piece Design	00000000	000000
9" Lg.
2 3/8"	2	3	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	0000000	00000
2 7/8"	2 1/2	3	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	0000000	00000
3 1/2"	3	3	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	0000000	00000
4"	3 1/2	3	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	0000000	00000
4 1/2"	4	3	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	0000000	000000
5.563"	5	3	60 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	0000000	000000
6 5/8"	6	3	60 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	0000000	000000
8 5/8"	8	3	60 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	0000000	000000
10 3/4"	10	6	25 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	Two-Piece Design	0000000	000000
12 3/4"	12	6	25 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	Two-Piece Design	0000000	000000
12" Lg.
2 3/8"	2	4	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	0000000	00000
2 7/8"	2 1/2	4	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	0000000	00000
3 1/2"	3	4	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	0000000	000000
4"	3 1/2	4	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	0000000	000000
4 1/2"	4	4	100 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	0000000	000000
5.563"	5	4	60 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	0000000	000000
6 5/8"	6	4	60 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	0000000	000000
8 5/8"	8	4	60 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	__	0000000	000000
10 3/4"	10	8	25 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	Two-Piece Design	0000000	000000
12 3/4"	12	8	25 psi @ 72° F	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Steel	Steel	Buna-N Rubber	Two-Piece Design	0000000	000000

Low-Pressure Pipe Repair Clamps for Steam

For Use With: Steam
Max. Temperature: 300° F
For Pipe Material: Iron, Steel, Aluminum, PVC Plastic, Copper

Also known as patch clamps, use these to repair pinholes and cracks in pipe without having to disassemble your system. Clamps are 304 stainless steel for very good corrosion resistance.

3" Lg.
For Pipe OD	For Pipe Size	No. of Bolts	Max. Vacuum	Material	Lug Material	Nut Material	Bolt Material	Gasket Material		Each
0.84"	1/2	1	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Galvanized Steel	Galvanized Steel	EPDM Rubber	00000000	000000
1.05"	3/4	1	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Galvanized Steel	Galvanized Steel	EPDM Rubber	00000000	00000
1.315"	1	1	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Galvanized Steel	Galvanized Steel	EPDM Rubber	00000000	00000
6" Lg.
1.66"	1 1/4	2	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Galvanized Steel	Galvanized Steel	EPDM Rubber	00000000	00000
1.9"	1 1/2	2	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Galvanized Steel	Galvanized Steel	EPDM Rubber	00000000	00000
2 3/8"	2	2	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Galvanized Steel	Galvanized Steel	EPDM Rubber	00000000	00000
2 7/8"	2 1/2	2	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Galvanized Steel	Galvanized Steel	EPDM Rubber	00000000	00000
3 1/2"	3	2	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Galvanized Steel	Galvanized Steel	EPDM Rubber	00000000	00000
4 1/2"	4	2	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Galvanized Steel	Galvanized Steel	EPDM Rubber	00000000	00000
9" Lg.
6 5/8"	6	3	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Galvanized Steel	Galvanized Steel	EPDM Rubber	00000000	000000
8 5/8"	8	3	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Galvanized Steel	Galvanized Steel	EPDM Rubber	00000000	000000
10 3/4"	10	6	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Galvanized Steel	Galvanized Steel	EPDM Rubber	00000000	000000
12" Lg.
12 3/4"	12	8	15 in. of Hg @ 72° F	304 Stainless Steel	Iron	Galvanized Steel	Galvanized Steel	EPDM Rubber	00000000	000000