Pancake Pipe Blinds | McMaster-Carr

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47 Products

Pipeline Fluid Blockers

Also known as pipe blinds, these fluid blockers fit between two flanges to stop flow, so you can work downstream without draining the system.

Paddle Blinds

Paddle blinds slip between the flanges to temporarily block flow.

304 Stainless Steel and PTFE-Coated 304 Stainless Steel—304 stainless steel blinds resist corrosion better than steel blinds.

						Handle
	For Pipe Size	OD	For Orifice Flange ANSI Class	Max. Pressure @ Temp.	Thk.	Lg.	Wd.	Temp. Range, ° F	Specs. Met	Food Industry Std.		Each
Steel



		1/2	1 3/4"	150	150 psi @ 70° F	1/4"	7"	1"	-20 to 100	ASTM A36	—	0000000	000000


		3/4	2 1/8"	150	150 psi @ 70° F	1/4"	7"	1"	-20 to 100	ASTM A36	—	0000000	00000
		1	2 1/2"	—	150 psi @ 70° F	1/4"	7"	1"	-20 to 100	ASTM A36	—	0000000	00000
		1 1/4	2 7/8"	150	150 psi @ 70° F	1/4"	7"	1"	-20 to 100	ASTM A36	—	0000000	00000
		1 1/2	3 1/4"	—	150 psi @ 70° F	1/4"	7"	1"	-20 to 100	ASTM A36	—	0000000	00000
		2	4"	—	150 psi @ 70° F	1/4"	7"	1"	-20 to 100	ASTM A36	—	0000000	00000
		2 1/2	4 3/4"	—	150 psi @ 70° F	1/4"	7"	1"	-20 to 100	ASTM A36	—	0000000	00000
		3	5 1/4"	—	150 psi @ 70° F	1/4"	7"	1"	-20 to 100	ASTM A36	—	0000000	00000
		3 1/2	6 1/4"	150	150 psi @ 70° F	3/8"	7"	1"	-20 to 100	ASTM A36	—	0000000	000000
		4	6 3/4"	—	150 psi @ 70° F	1/4"	7"	1"	-20 to 100	ASTM A36	—	0000000	00000
		6	8 5/8"	—	150 psi @ 70° F	1/2"	7"	1"	-20 to 100	ASTM A36	—	0000000	000000


		8	10 7/8"	—	150 psi @ 70° F	5/8"	7"	1"	-20 to 100	ASTM A36	—	0000000	000000
		10	13 1/4"	—	150 psi @ 70° F	5/8"	7"	1 1/2"	-20 to 100	ASTM A36	—	0000000	000000
		12	16"	—	150 psi @ 70° F	3/4"	7"	1 1/2"	-20 to 100	ASTM A36	—	0000000	000000


		304 Stainless Steel



				8	11"	150	150 psi @ 70° F	1/4"	7"	1"	-100 to 400	—	—	0000000	000000


				10	13 3/8"	150	150 psi @ 70° F	3/8"	7"	1 1/2"	-100 to 400	—	—	0000000	000000
				12	16 1/8"	150	150 psi @ 70° F	3/8"	7"	1 1/2"	-100 to 400	—	—	0000000	000000


				PTFE-Coated 304 Stainless Steel



						1/2	1 7/8"	150	150 psi @ 250° F	1/8"	2"	3/4"	-100 to 400	ASTM D4894	FDA Compliant 21 CFR 177.1550	0000000	00000


						3/4	2 1/4"	150	150 psi @ 250° F	1/8"	2"	3/4"	-100 to 400	ASTM D4894	FDA Compliant 21 CFR 177.1550	0000000	00000
						1	2 5/8"	150	150 psi @ 70° F	1/8"	2 3/4"	3/4"	-100 to 400	ASTM D4894	FDA Compliant 21 CFR 177.1550	0000000	00000
						1 1/2	3 3/8"	150	150 psi @ 70° F	1/8"	2 3/4"	3/4"	-100 to 400	ASTM D4894	FDA Compliant 21 CFR 177.1550	0000000	00000
						2	4 1/8"	150	150 psi @ 70° F	1/8"	3"	3/4"	-100 to 400	ASTM D4894	FDA Compliant 21 CFR 177.1550	0000000	00000
						3	5 3/8"	150	150 psi @ 70° F	1/8"	3"	3/4"	-100 to 400	ASTM D4894	FDA Compliant 21 CFR 177.1550	0000000	00000
						4	6 7/8"	150	150 psi @ 70° F	1/8"	3"	3/4"	-100 to 400	ASTM D4894	FDA Compliant 21 CFR 177.1550	0000000	000000
						6	8 3/4"	150	150 psi @ 70° F	3/16"	5"	3/4"	-100 to 400	ASTM D4894	FDA Compliant 21 CFR 177.1550	0000000	000000

Spectacle Blinds

Spectacle blinds install permanently and rotate around the bolt to either block or open flow. However, they add extra weight to your pipeline.

304 Stainless Steel—304 stainless steel blinds resist corrosion better than steel blinds.

	ID	OD	For Orifice Flange ANSI Class	Max. Pressure @ Temp.	Thk.	End-to-End Lg.	Temp. Range, ° F	Specs. Met		Each
Steel



	1/2	5/8"	1 3/4"	150	285 psi @ 70° F	1/4"	4 1/8"	-20 to 800	ASTM A516	0000000	000000


	3/4	7/8"	2 1/8"	150	285 psi @ 70° F	1/4"	4 7/8"	-20 to 800	ASTM A516	0000000	000000
	1	1"	2 1/2"	150	285 psi @ 70° F	1/4"	5 5/8"	-20 to 800	ASTM A516	0000000	000000
	1 1/2	1 7/8"	3 1/4"	150	285 psi @ 70° F	3/8"	7 1/8"	-20 to 800	ASTM A516	0000000	000000
	2	2 3/8"	4"	150	285 psi @ 70° F	3/8"	8 3/4"	-20 to 800	ASTM A516	0000000	000000
	2 1/2	2 7/8"	4 3/4"	150	285 psi @ 70° F	3/8"	10 1/4"	-20 to 800	ASTM A516	0000000	000000
	3	3 1/2"	5 1/4"	150	285 psi @ 70° F	3/8"	11 1/4"	-20 to 800	ASTM A516	0000000	000000
	4	4 1/2"	6 3/4"	150	285 psi @ 70° F	1/2"	14 1/4"	-20 to 800	ASTM A516	0000000	000000
	6	6 5/8"	8 5/8"	150	285 psi @ 70° F	5/8"	18 1/8"	-20 to 800	ASTM A516	0000000	000000
	8	8 5/8"	10 7/8"	150	285 psi @ 70° F	5/8"	22 5/8"	-20 to 800	ASTM A516	0000000	000000
	10	10 3/4"	13 1/4"	150	285 psi @ 70° F	3/4"	27 1/2"	-20 to 800	ASTM A105	0000000	000000


	304 Stainless Steel



			1/2	5/8"	1 3/4"	150	230 psi @ 70° F	1/4"	4 1/8"	-20 to 800	ASTM A240	0000000	000000


			3/4	7/8"	2 1/8"	150	230 psi @ 70° F	1/4"	4 7/8"	-20 to 800	ASTM A240	0000000	000000
			1	1"	2 1/2"	150	230 psi @ 70° F	1/4"	5 5/8"	-20 to 800	ASTM A240	0000000	000000
			1 1/2	1 7/8"	3 1/4"	150	230 psi @ 70° F	3/8"	7 1/8"	-20 to 800	ASTM A240	0000000	000000
			2	2 3/8"	4"	150	230 psi @ 70° F	3/8"	8 3/4"	-20 to 800	ASTM A240	0000000	000000
			2 1/2	2 7/8"	4 3/4"	150	230 psi @ 70° F	3/8"	10 1/4"	-20 to 800	ASTM A240	0000000	000000
			3	3 1/2"	5 1/4"	150	230 psi @ 70° F	3/8"	11 1/4"	-20 to 800	ASTM A240	0000000	000000
			4	4 1/2"	6 3/4"	150	230 psi @ 70° F	1/2"	14 1/4"	-20 to 800	ASTM A240	0000000	000000
			6	6 5/8"	8 5/8"	150	230 psi @ 70° F	5/8"	18 1/8"	-20 to 800	ASTM A240	0000000	000000
			8	8 5/8"	10 7/8"	150	230 psi @ 70° F	5/8"	22 5/8"	-20 to 800	ASTM A240	0000000	000000
			10	10 3/4"	13 1/4"	150	230 psi @ 70° F	3/4"	27 1/2"	-20 to 800	ASTM A182	0000000	00000000