Stainless Steel Traps | McMaster-Carr

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	Pipe Size Pipe Size

	Thread Type Thread Type

NPT

NPTF

	For Use With For Use With

	Material Material	Show

	Material Material	Hide

	Connection Style Connection Style

Threaded

Quick Clamp

	Maximum Pressure Maximum Pressure

	Connection Type Connection Type

	Pipe

	System of Measurement System of Measurement

Inch

	Shape Shape

	Straight
	Cap/Plug

	Length Length

	Maximum Temperature Maximum Temperature

200° to 249° F

300° to 499° F

500° F or greater

	Pipeline Orientation Pipeline Orientation

Horizontal

Vertical

	Height Height

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

DFARS Specialty Metals
COTS-Exempt

	Condensate Capacity Condensate Capacity

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Gender Gender

Female

Male

	Environment Environment

Food and Beverage

Sanitary

	Drive Style Drive Style

	Hex

	Type Type

	Plug

	Plug Construction Plug Construction

With Magnet

	Diameter Diameter

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45 Products

How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

B&C

Also known as thermodynamic steam traps, these discharge condensate when close to steam temperature for minimal energy loss. They are often used with tanks, vats, steam mains, steam tracers, presses, and heating equipment.

Style A has a strainer screen to stop debris from moving down the pipeline.

Style C is insulated for increased energy efficiency; it is also known as a zero-steam-loss steam trap.

304 Stainless Steel
Style	Pipe Size	Thread Type	Gender	Pipeline Orientation	Max. Pressure, psi	Max. Temp., °F	Condensate Capacity, lbs./hr.	Lg.	Ht.		Each
A	3/8	NPT	Female	Horizontal	600	800°	1,250	3 1/16"	4 1/4"	0000000	0000000
A	1/2	NPT	Female	Horizontal	600	800°	2,000	3 1/16"	4 1/4"	0000000	000000
A	3/4	NPT	Female	Horizontal	600	800°	3,050	3 1/16"	4 1/4"	0000000	000000
A	1	NPT	Female	Horizontal	600	800°	4,700	3 1/4"	4 3/4"	0000000	000000
B	3/8	NPT	Female	Horizontal	600	800°	1,250	2"	1 3/4"	0000000	000000
B	1/2	NPT	Female	Horizontal	600	800°	2,000	2 11/16"	2"	0000000	000000
B	3/4	NPT	Female	Horizontal	600	800°	3,050	2 13/16"	2 7/16"	0000000	000000
B	1	NPT	Female	Horizontal	600	800°	4,700	3 5/16"	2 7/8"	0000000	000000
420 Stainless Steel
C	3/8	NPT	Female	Horizontal	600	800°	1,250	2"	2 1/4"	0000000	000000
C	1/2	NPT	Female	Horizontal	600	800°	2,000	2 3/4"	2 1/2"	0000000	000000
C	3/4	NPT	Female	Horizontal	600	800°	3,050	2 13/16"	2 15/16"	0000000	000000
C	1	NPT	Female	Horizontal	600	800°	4,700	3 5/16"	3 7/16"	0000000	000000

Sanitary Energy-Saving Stainless Steel Steam Traps

When close to steam temperature, these traps—also called thermodynamic steam traps—release condensate from steam lines to save energy in food, pharmaceutical, and other sanitary environments. Made of 316 stainless steel, they stand up to frequent washdowns with harsh cleaners and sanitizers to reduce the risk of bacteria growth. They have quick-clamp tube fittings and a threaded cap, which are easy to remove for cleaning or access to your line.

Often used while equipment is operating at high pressures and temperatures, these steam traps don’t have plastic or rubber seals that can degrade over time. The lack of seals, however, means they may not last as long as other steam traps. Install these steam traps horizontally.

For technical drawings and 3-D models, click on a part number.

316 Stainless Steel
Pipe Size	Gender	Pipeline Orientation	Pipe Connection Type	Max. Pressure, psi	Max. Temperature, °F	Condensate Capacity, lbs./hr.	Lg.	Ht.		Each
1/2	Female	Horizontal	Quick Clamp	225	800°	1,050	2 9/16"	2 3/8"	0000000	0000000

High-Flow Stainless Steel Steam Traps

Also known as inverted-bucket steam traps, these provide near-continuous discharge to accommodate high condensate levels. They are normally open to release condensate and close immediately when steam enters to prevent energy loss.

Style B attaches to a connector (sold separately) and swivels so it can be positioned both vertically and horizontally.

304 Stainless Steel
Style	Pipeline Orientation	Pipe Size	Thread Type	Gender	Max. Pressure, psi	Max. Temp., °F	Condensate Capacity, lbs./hr.	Lg.	Ht.	Dia.		Each
A	Horizontal	3/8	NPT	Female	200	800°	500	4 3/8"	5 3/8"	2 11/16"	00000000	0000000
A	Horizontal	1/2	NPT	Female	200	800°	500	4 3/8"	5 3/8"	2 11/16"	00000000	000000
A	Horizontal	1/2	NPT	Female	400	800°	580	4 3/8"	6 3/8"	2 11/16"	00000000	000000
A	Horizontal	3/4	NPT	Female	400	800°	580	4 3/8"	6 5/8"	2 11/16"	00000000	000000
A	Horizontal	3/4	NPT	Female	650	600°	1,500	5"	8 1/2"	3 7/8"	00000000	00000000
A	Horizontal	1	NPT	Female	650	600°	1,500	5"	8 1/2"	3 7/8"	00000000	00000000
B	Horizontal, Vertical	__	__	__	200	800°	500	__	6"	2 11/16"	0000000	000000

1/2 Pipe Size Connector for Style B	0000000	Each	0000000
3/4 Pipe Size Connector for Style B	0000000	Each	000000

Stainless Steel Steam Traps

Made of 316 stainless steel, these steam traps have excellent corrosion resistance. Also known as thermostatic steam traps, they increase the efficiency of your radiator by venting cool air. They open and close based on temperature. Use with convection heaters, drip lines, and risers. Steam traps should be installed with the outlet pointing down.

316 Stainless Steel
Pipe Size	Thread Type	Gender	Pipeline Orientation	Max. Pressure, psi	Max. Temp., °F	Condensate Capacity, lbs./hr.	Lg.	Ht.	Dia.		Each
1/4	NPT	Female	Vertical	300	500°	1,000	2"	2"	1 13/16"	0000000	0000000
1/2	NPT	Female	Vertical	300	500°	1,000	2 7/16"	2 7/16"	1 13/16"	0000000	000000
1/2	NPT	Female	Vertical	650	650°	650	3 3/4"	3 3/4"	1 3/4"	0000000	000000

Sanitary Stainless Steel Steam Traps

Suitable for food, pharmaceutical, and other sanitary environments, these steam traps are made of 316 stainless steel with a Viton® fluoroelastomer O-ring to stand up to frequent washdowns with harsh cleaners and sanitizers. They have a smooth 20Ra interior finish—smoother than most food and dairy applications require—and a self-draining design to reduce the risk of bacteria growth. They also have quick-clamp tube fittings, which are easy to remove for cleaning and access to your line. The O-ring is FDA compliant for direct contact with food.

Use these steam traps to increase the efficiency of your radiator by venting cool air. Also known as thermostatic steam traps, they automatically open and close based on temperature. Install them with their outlet pointing down.

For technical drawings and 3-D models, click on a part number.

316 Stainless Steel
Pipe Size	Gender	Pipeline Orientation	Connection Style	Max. Pressure, psi	Max. Temp., °F	Condensate Capacity, lbs./hr.	Lg.	Ht.	Dia.	Specifications Met		Each
1/2	Female	Vertical	Quick Clamp	90	350°	2,580	2 5/8"	2 5/8"	1"	FDA Compliant 21 CFR 177.2600	0000000	000000000
3/4	Female	Vertical	Quick Clamp	90	350°	2,580	2 5/8"	2 5/8"	1"	FDA Compliant 21 CFR 177.2600	0000000	00000000
1	Female	Vertical	Quick Clamp	90	350°	2,580	2 5/8"	2 5/8"	2"	FDA Compliant 21 CFR 177.2600	0000000	00000000

Sanitary Magnetic Strainers

Strainer Shown Assembled

Strainer

Gasket

For Use With: Beverage, Dairy, Food, Salt Solutions, Sodium Nitrate, Water
Max. Pressure: 150 psi @ 225° F
Temp. Range: -20° to 225° F

Draw metal shavings and other contaminants out of your sanitary liquid line with these strainers. As liquid swirls through the strainer cavity, magnets sealed inside capture any metal bits. Remaining impurities are separated out with gravity and trapped in a collection sump. Empty the strainers by removing the lid and scooping up the collected particles at the bottom of the enclosure. These strainers have quick-clamp connections, so they’re good for frequent deep cleans and line changes. Also known as tri-clamp fittings, they connect with a gasket, a clamp, and another quick-clamp fitting for quick removal and assembly.

These strainers are 316 stainless steel, which won’t corrode from frequent washdowns with harsh cleaners. The continuous weld seams and polished surfaces are free of pits and crevices where bacteria could grow, making them easy to sanitize. Rated for high temperatures, you can keep these strainers on your line during a heated clean-in-place (CIP) process. All strainers and their included gasket are FDA compliant, meaning they are safe for food contact.

Filters that are USDA certified meet the highest standards of sanitary design.

For technical drawings and 3-D models, click on a part number.

Strainers
Pipe Size	Max. Magnetic Pull, lbs.	Lg.	Ht.	Magnet Material	Gasket Material	Specifications Met		Each
316 Stainless Steel
2	14.25	9 3/4"	9 3/8"	Neodymium	Buna-N Rubber	FDA Compliant 21 CFR 177.2600	0000000	000000000
3	14.25	9 13/16"	9 3/8"	Neodymium	Buna-N Rubber	FDA Compliant 21 CFR 177.2600	0000000	00000000
USDA Certified Strainers
316 Stainless Steel
2	14.25	9 3/4"	9 3/8"	Neodymium	Buna-N Rubber	FDA Compliant 21 CFR 177.2600 USDA Certified	0000000	00000000
3	14.25	9 13/16"	9 3/8"	Neodymium	Buna-N Rubber	FDA Compliant 21 CFR 177.2600 USDA Certified	0000000	00000000

Replacement Lid Gasket	Each	000000
Replacement Quick-Clamp Gasket for 3 Pipe Size	Each	0000
Replacement Quick-Clamp Gasket for 2 Pipe Size	Each	0000

Low-Pressure Stainless Steel Threaded Pipe Fittings

Use these fittings in a low-pressure pipe line. 316 stainless steel fittings have excellent corrosion resistance.

Plugs with magnet attract metal debris that could otherwise damage your system.

NPTF (Dryseal) threads and NPSL (National Pipe Straight Locknut) threads are compatible with NPT threads.

For technical drawings and 3-D models, click on a part number.

Plugs with Hex Drive

For Use With: Air, Steam, Oil, Water, Natural Gas
Pressure Class:
NPTF: 150
Specifications Met:
Metric and BSPP: DIN 908
Pipe Nipples and Pipe:
NPTF: Use Schedule 40 stainless steel
Flanges:
NPTF: Use Class 150 stainless steel

				316 Stainless Steel
Pipe Size	Drive Size	Max. Pressure	Max. Steam Pressure		Each
NPTF Male with Magnet
1/8	3/16"	270 psi @ 72° F	180 psi @ 360° F	0000000	00000
1/4	1/4"	270 psi @ 72° F	180 psi @ 360° F	0000000	0000
3/8	5/16"	270 psi @ 72° F	180 psi @ 360° F	0000000	0000
1/2	3/8"	270 psi @ 72° F	180 psi @ 360° F	0000000	0000
3/4	9/16"	270 psi @ 72° F	180 psi @ 360° F	0000000	0000
1	5/8"	270 psi @ 72° F	180 psi @ 360° F	0000000	00000
1 1/4	3/4"	270 psi @ 72° F	180 psi @ 360° F	0000000	00000
1 1/2	1"	270 psi @ 72° F	180 psi @ 360° F	0000000	00000
2	1"	270 psi @ 72° F	180 psi @ 360° F	0000000	00000
2 1/2	1"	270 psi @ 72° F	180 psi @ 360° F	0000000	000000