Gas Separators | McMaster-Carr

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29 Products

Vacuum-Rated Liquid Separators

Improve vacuum system efficiency and protect components from moisture—these separators remove over 90% of water from air. Typically used with vacuum pumps, they minimize vacuum pressure drop, even when the element is saturated with water. Separators have a viewing window so you can see inside to monitor water removal. Mount separator vertically for proper drainage (brackets sold separately), and install before air filters.

	Separators																	Mounting Brackets
	Pipe Size		Drain						Overall					Element
	Inlet	Outlet	Pipe Size	Thread Type	Gender	Max. Flow Rate @ Pressure	Max. Vacuum, in. Hg	Max. Temp., ° F	Ht.	Dia.	Filter Efficiency	Bowl Cap., fl. oz.	Bowl Material	Ht.	OD		Each		Each
NPT Female Connection



		1/4	1/4	1/8	BSPT	Female	7 scfm @ 14.7 psi	29.5	140	6 5/8"	2 1/16"	90%	1	Polycarbonate	1 3/4"	1 3/16"	0000000	0000000	0000000	00000


		3/8	3/8	1/8	BSPT	Female	7 scfm @ 14.7 psi	29.5	140	6 5/8"	2 1/16"	90%	1	Polycarbonate	1 3/4"	1 3/16"	0000000	000000	0000000	0000
		3/8	3/8	1/8	BSPT	Female	10.6 scfm @ 14.7 psi	29.5	140	8 1/16"	2 3/4"	90%	2.8	Polycarbonate	2 7/8"	1 7/16"	0000000	000000	0000000	0000
		1/2	1/2	1/8	BSPT	Female	10.6 scfm @ 14.7 psi	29.5	140	8 1/16"	2 3/4"	90%	2.8	Polycarbonate	2 7/8"	1 7/16"	0000000	000000	0000000	0000
		3/4	3/4	1/8	BSPT	Female	17.6 scfm @ 14.7 psi	29.5	140	11 3/16"	3 1/2"	90%	2.8	Polycarbonate	3 3/8"	1 5/8"	0000000	000000	0000000	0000
		1	1	1/8	BSPT	Female	17.6 scfm @ 14.7 psi	29.5	140	11 3/16"	3 1/2"	90%	2.8	Polycarbonate	3 3/8"	1 5/8"	0000000	000000	0000000	0000

Replacements for Liquid Separators

	Ht.	OD	Filter Efficiency
Polybutylene


1 3/4"	1 3/16"	90%	0000000	000000
2 7/8"	1 7/16"	90%	0000000	00000
3 3/8"	1 5/8"	90%	0000000	00000

	Cap., fl. oz.	Guard Material
Polycarbonate


1	Steel	0000000	000000
2.8	Steel	0000000	00000

		Each
Buna-N Rubber O-Ring for 2 ¹⁄₁₆" Dia. Separator	0000000	00000
Buna-N Rubber O-Ring for 2 ¾" and 3 ½" Dia. Separator	0000000	0000

Liquid Separators

These separators remove 99% of moisture and particles, leaving you with nothing but clean dry air, inert gas, or steam. They have no baskets or cartridges to clean or replace. Particles fall to the bottom of the separator and are discharged through the drain trap with minimal pressure loss.

150 psi Maximum Pressure

Separators with 150 psi are smaller and more efficient; a baffle separates contaminants from your media.

			Drain
Pipe Size	Thread Type	Gender	Pipe Size	Thread Type	Gender	Removes Particle Size Down To, μm	Max. Flow Rate @ Pressure	Steam Cap. @ Pressure	Max. Temp., ° F	Certification	Filter Efficiency		Each



	1/2	NPT	Female	3/8	NPT	Female	10	100 scfm @ 150 psi	235 lb/hr @ 150 psi	450	ASME BPVC.VIII	99%	00000000	0000000


	3/4	NPT	Female	3/8	NPT	Female	10	145 scfm @ 150 psi	390 lb/hr @ 150 psi	450	ASME BPVC.VIII	99%	00000000	000000
	1	NPT	Female	3/8	NPT	Female	10	180 scfm @ 150 psi	595 lb/hr @ 150 psi	450	ASME BPVC.VIII	99%	00000000	000000
	1 1/4	NPT	Female	3/8	NPT	Female	10	330 scfm @ 150 psi	900 lb/hr @ 150 psi	450	ASME BPVC.VIII	99%	00000000	000000
	1 1/2	NPT	Female	1/2	NPT	Female	10	440 scfm @ 150 psi	1,650 lb/hr @ 150 psi	450	ASME BPVC.VIII	99%	00000000	00000000
	2	NPT	Female	1/2	NPT	Female	10	700 scfm @ 150 psi	2,250 lb/hr @ 150 psi	450	ASME BPVC.VIII	99%	00000000	00000000
	2 1/2	NPT	Female	1/2	NPT	Female	10	1,350 scfm @ 150 psi	3,800 lb/hr @ 150 psi	450	ASME BPVC.VIII	99%	00000000	00000000

250 psi Maximum Pressure

Separators with 250 psi use centrifugal flow to remove contaminants from your media.

			Drain			Vent
Pipe Size	Thread Type	Gender	Pipe Size	Thread Type	Gender	Pipe Size	Thread Type	Gender	Removes Particle Size Down To, μm	Max. Flow Rate @ Pressure	Steam Cap. @ Pressure	Max. Temp., ° F	Certification	Filter Efficiency		Each



	1	NPT	Female	3/4	NPT	Female	1/4	NPT	Female	10	190 scfm @ 150 psi	700 lb/hr @ 150 psi	450	ASME BPVC.VIII	99%	0000000	000000000


	1 1/4	NPT	Female	3/4	NPT	Female	1/4	NPT	Female	10	300 scfm @ 150 psi	1,100 lb/hr @ 150 psi	450	ASME BPVC.VIII	99%	0000000	00000000
	1 1/2	NPT	Female	3/4	NPT	Female	1/4	NPT	Female	10	425 scfm @ 150 psi	1,450 lb/hr @ 150 psi	450	ASME BPVC.VIII	99%	0000000	00000000
	2	NPT	Female	3/4	NPT	Female	1/4	NPT	Female	10	770 scfm @ 150 psi	2,800 lb/hr @ 150 psi	450	ASME BPVC.VIII	99%	0000000	00000000

Sediment Traps for Natural Gas

Get ahead of your water heater maintenance—these traps catch debris from natural gas lines before it can enter the tank. Also called a drip leg, these traps are often required by building standards. They’re plated in zinc, so they’re mildly corrosion resistant.

Install them after your shutoff valve and as close to the water heater inlet as possible. To empty the trap, unscrew the cap and dispose of any debris.

	Outlet Ht.	Ht.	Wd.	Dp.	Max. Temp., ° F	Features		Each
Threaded NPT Male Inlet and Outlet







	Zinc-Plated Carbon Steel

	3	1/2	1/2	4"	7 3/4"	4 1/4"	1 1/4"	600	Threaded Drain Cap	0000000	000000


	3	3/4	3/4	4"	7 3/4"	4 1/4"	1 1/4"	600	Threaded Drain Cap	0000000	00000