BSPT Thread Mufflers | McMaster-Carr

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26 Products

Mufflers


Style A	Style B

Use these mufflers with air-powered tools, valves, and cylinders to reduce noise and filter exhaust fumes.

Mufflers with Pipe Connection


Style A	Style B

Style B—Style B are knurled for easy gripping.

Bronze Body and Copper Body—Brass, bronze, and copper mufflers offer good corrosion resistance.

											Each
	Pipe Size	Max. Flow Rate @ Pressure	Max. Pressure, psi	Max. Temp., ° F	Ht.	Dia.	For Use With	Removes Particle Size Down To, μm	Noise Reduction Rating		1-24	25-99	100-Up
Style A







				BSPT Threaded Male Zinc-Plated Steel Fitting—Bronze Body

				1/8	53 scfm @ 100 psi	125	300	15/16"	—	Air, Inert Gas	40	17 dBA to 22 dBA	0000000	00000	00000	00000


				1/4	70 scfm @ 100 psi	125	300	1 5/16"	—	Air, Inert Gas	40	17 dBA to 22 dBA	0000000	0000	0000	0000
				3/8	175 scfm @ 100 psi	125	300	1 1/2"	—	Air, Inert Gas	40	17 dBA to 22 dBA	0000000	0000	0000	0000
				1/2	263 scfm @ 100 psi	125	300	2"	—	Air, Inert Gas	40	17 dBA to 22 dBA	0000000	0000	0000	0000
				3/4	438 scfm @ 100 psi	125	300	2 5/16"	—	Air, Inert Gas	40	17 dBA to 22 dBA	0000000	00000	00000	00000
				1	613 scfm @ 100 psi	125	300	2 15/16"	—	Air, Inert Gas	40	17 dBA to 22 dBA	0000000	00000	00000	00000
				1 1/4	700 scfm @ 100 psi	125	300	3 1/2"	—	Air, Inert Gas	90	17 dBA to 22 dBA	0000000	00000	00000	00000
				1 1/2	1,314 scfm @ 100 psi	125	300	4"	—	Air, Inert Gas	90	17 dBA to 22 dBA	0000000	00000	00000	00000
				2	2,190 scfm @ 100 psi	125	300	4 13/16"	—	Air, Inert Gas	90	17 dBA to 22 dBA	0000000	00000	00000	00000


				Style B







								BSPT Threaded Male Nickel-Plated Copper Fitting—Copper Body

								1/8	18 scfm @ 100 psi	145	300	13/16"	7/16"	Air	100	16 dB	0000000	0000	0000	0000


								1/8	28 scfm @ 100 psi	145	300	1 5/16"	1/2"	Air	100	16 dB	0000000	0000	0000	0000

Compact High-Flow Mufflers

A small hex size makes these high-flow mufflers a good fit for cramped spaces. Commonly used with high-flow, air-powered equipment, such as diaphragm pumps and valves, they reduce noise and filter exhaust fumes without restricting flow.

BSPT Male Zinc-Plated Steel Fitting

Pipe Size	Max. Flow Rate @ Pressure	Max. Pressure, psi	Max. Temp., ° F	Ht.	For Use With	Removes Particle Size Down To, μm	Noise Reduction Rating, dBA
1/8	48 scfm @ 100 psi	150	400	1 3/8"	Air, Inert Gas	100	15 to 22
1/4	105 scfm @ 100 psi	150	400	1 3/4"	Air, Inert Gas	100	15 to 22
3/8	219 scfm @ 100 psi	150	400	2 3/16"	Air, Inert Gas	100	15 to 22
1/2	332 scfm @ 100 psi	150	400	2 3/4"	Air, Inert Gas	100	15 to 22
3/4	613 scfm @ 100 psi	150	400	3 3/16"	Air, Inert Gas	100	15 to 22
1	876 scfm @ 100 psi	150	400	3 7/8"	Air, Inert Gas	100	15 to 22
1 1/4	1,226 scfm @ 100 psi	150	400	4 1/2"	Air, Inert Gas	100	15 to 22
1 1/2	1,576 scfm @ 100 psi	150	400	5"	Air, Inert Gas	100	15 to 22
2	2,452 scfm @ 100 psi	150	400	5 1/2"	Air, Inert Gas	100	17 to 22

Corrosion-Resistant Mufflers


Style A	Style B

Made entirely of stainless steel, these mufflers stand up to harsh, corrosive environments. Use them to reduce noise from equipment and to filter exhaust fumes.

Mufflers with Pipe Connection


Style A	Style B

316 Stainless Steel Fitting—316 stainless steel mufflers offer excellent corrosion resistance.

											Each
	Pipe Size	Max. Flow Rate @ Pressure	Max. Pressure, psi	Max. Temp., ° F	Ht.	For Use With	Body Material	Removes Particle Size Down To, μm	Noise Reduction Rating, dB		1-14	15-Up
Style A







				BSPT Male 316 Stainless Steel Fitting

				1/4	36 scfm @ 100 psi	150	1,000	2 1/16"	Air, Inert Gas	316 Stainless Steel	100	18 to 20	0000000	000000	000000


				3/8	65 scfm @ 100 psi	150	1,000	2 1/16"	Air, Inert Gas	316 Stainless Steel	100	18 to 20	0000000	00000	00000
				1/2	90 scfm @ 100 psi	150	1,000	2 5/16"	Air, Inert Gas	316 Stainless Steel	100	18 to 20	0000000	00000	00000


				Style B







								BSPT Male 316 Stainless Steel Fitting

								1/8	19 scfm @ 100 psi	150	1,000	1 1/2"	Air, Inert Gas	316 Stainless Steel	100	18 to 20	0000000	00000	00000

Air-Exhaust Flow Control Valves


Thumb Screw Flow Adjustment

Install these valves in the exhaust ports of air directional control valves to control exhaust air speed without needing access to your cylinder. They control flow in one direction as air moves from the inlet to the exhaust port (meter out). Air flows freely in the opposite direction. Valves exhaust to the atmosphere and include a muffler to reduce the exhaust noise.

Flow Coefficient (Cv)—Flow coefficient (Cv) is a measurement that indicates how much airflow can pass through a valve. When selecting between valves with the same port size, choose the valve with the higher flow coefficient to ensure it provides enough airflow to operate your system.

								Overall, mm
	No. of Flow Ports	Inlet Size	Max. Flow Rate @ Pressure	Flow Coefficient (Cv)	Max. Pressure, psi	Body Material	Hex Size, mm	Dia	Lg.		Each
Threaded Male Inlet







				Flow-Adjustment Thumb Screw

				2	1/8 BSPT	10.59 scfm @ 100 psi	0.201	145	Brass	10	14	35.8	00000000	000000


				2	1/4 BSPT	17.66 scfm @ 100 psi	0.313	145	Brass	14	18	37	00000000	00000