Armstrong steam trap cover for all model 883 inverted bucket traps. Cover gasket sold separately.

Armstrong internal check valve model A340C for 211, 212, 213, 800, 811, 812, 881, and 882 inverted bucket traps. 1/2" pipe and all pressures.

Armstrong internal check valve model A425B for 213, 813, and 883 inverted bucket traps. 3/4" pipe and all pressures.

Armstrong internal check valve model A422B for 214, 215, and 814 inverted bucket traps. 1" pipe and all pressures.

Armstrong internal check valve model A423 for model 215 inverted bucket traps. 1-1/4" pipe and all pressures.

Armstrong internal check valve model A459 for model 216 inverted bucket traps. 1-1/2" pipe and all pressures.

Armstrong internal check valve model A476 for models 216 and 816 inverted bucket traps. 2" pipe and all pressures.

Sloan Valve check valve.

Zoeller 1-1/4" slip x 1-1/2" slip union check valve that features stainless steel screws, clamps, and a flapper that bends over the radius. The valves' PVC plastic check body is ultrasonically-welded and can be solvent-welded for rigid pressure rated piping systems for 4.3 psi (10' of head) at 130°F.

Zoeller 2" slip x 2" slip cast iron union check valve that features full 2" flow design, 2" full flow pump code, and a neoprene gasket and flapper, weighted with heavy stainless steel metal backing plates and stainless steel rivet.

Spirax-Sarco internal check valve for model 621, 622, 623, 921, and 922 inverted bucket traps.

Spirax-Sarco internal check valve for model 625, 626, 923, and 925 inverted bucket traps.

Spirax-Sarco inlet check valve and gasket for APT10-4.5 pumping traps.

Spirax-Sarco trap and outlet check valve with gasket for APT10-4.5 pumping traps.

Spirax-Sarco inlet check valve and gasket for APT14 pumping traps.

Spirax-Sarco trap and outlet check valve with gasket for APT14 pumping traps.

Spirax-Sarco inlet check valve and gasket for APT14-HC pumping traps.

Spirax-Sarco trap and outlet check valve with gasket for APT14-HC pumping traps.

Conbraco bronze ball cone 1/2" IPF, straight-pattern check valve, rated to 125 psi steam, with a 1/2 lb opening pressure. This in-line check valve features a reinforced ball-cone check and stainless steel springs.

Conbraco bronze ball cone 3/4" IPF, straight-pattern check valve, rated to 125 psi steam, with a 1/2 lb opening pressure. This in-line check valve features a reinforced ball-cone check and stainless steel springs.

Conbraco bronze ball cone 1" IPF, straight-pattern check valve, rated to 125 psi steam, with a 1/2 lb opening pressure. This in-line check valve features a reinforced ball-cone check and stainless steel springs.

Durabla BBS stainless steel, in-line, "Basic-Check", check valve featuring a 1/4" female NPT by 1" male NPT connection for use with a 1" x 1/4" reducing coupler. "Basic-Check" valves provide full flow and tight shut-off and are available for horizontal or vertical installations, with a .05 lb. opening pressure.

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Durabla BBS stainless steel, in-line, "Basic-Check", check valve featuring a 3/8" female NPT by 1" male NPT connection for use with a 1" x 3/8" reducing coupler. "Basic-Check" valves provide full flow and tight shut-off and are available for horizontal or vertical installations, with a .05 lb. opening pressure.

• Accessories (1)

Durabla BBS stainless steel, in-line, "Basic-Check", check valve featuring a 1/2" female NPT by 1" male NPT connection for use with a 1" x 1/2" reducing coupler. "Basic-Check" valves provide full flow and tight shut-off and are available for horizontal or vertical installations, with a .05 lb. opening pressure.

• Accessories (1)

Durabla BBS stainless steel, in-line, "Basic-Check", check valve featuring a 3/4" female NPT by 1-1/2" male NPT connection for use with a 1-1/2" x 3/4" reducing coupler. "Basic-Check" valves provide full flow and tight shut-off and are available for horizontal or vertical installations, with a .05 lb. opening pressure.

• Accessories (1)

Durabla BBS stainless steel, in-line, "Basic-Check", check valve featuring a 1" female NPT by 2" male NPT connection for use with a 2" x 1" reducing coupler. "Basic-Check" valves provide full flow and tight shut-off and are available for horizontal or vertical installations, with a .05 lb. opening pressure.

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Durabla BBS stainless steel, in-line, "Basic-Check", check valve featuring a 1-1/4" female NPT by 2-1/2" male NPT connection for use with a 2-1/2" x 1-1/4" reducing coupler. "Basic-Check" valves provide full flow and tight shut-off and are available for horizontal or vertical installations, with a .05 lb. opening pressure.

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Durabla BBS stainless steel, in-line, "Basic-Check", check valve featuring a 1-1/2" female NPT by 3" male NPT connection for use with a 3" x 1-1/2" reducing coupler. "Basic-Check" valves provide full flow and tight shut-off and are available for horizontal or vertical installations, with a .05 lb. opening pressure.

• Accessories (1)

Durabla BBS stainless steel, in-line, "Basic-Check", check valve featuring a 2" female NPT by 4" male NPT connection for use with a 2" x 4" reducing coupler. "Basic-Check" valves provide full flow and tight shut-off and are available for horizontal or vertical installations, with a .05 lb. opening pressure.

• Accessories (1)

Durabla SCV stainless steel, in-line, "Basic-Check", check valve featuring a 1/2" NPT connection. Series SCV check valves are corrosion-resistant, dependable, versatile, and economical valves whose spring-assisted construction assures a long service life.

Durabla SCV stainless steel, in-line, "Basic-Check", check valve featuring a 3/4" NPT connection. Series SCV check valves are corrosion-resistant, dependable, versatile, and economical valves whose spring-assisted construction assures a long service life.

Durabla SCV stainless steel, in-line, "Basic-Check", check valve featuring a 1" NPT connection. Series SCV check valves are corrosion-resistant, dependable, versatile, and economical valves whose spring-assisted construction assures a long service life.

Durabla SCV stainless steel, in-line, "Basic-Check", check valve featuring a 1-1/4" NPT connection. Series SCV check valves are corrosion-resistant, dependable, versatile, and economical valves whose spring-assisted construction assures a long service life.

Durabla SCV stainless steel, in-line, "Basic-Check", check valve featuring a 1-1/2" NPT connection. Series SCV check valves are corrosion-resistant, dependable, versatile, and economical valves whose spring-assisted construction assures a long service life.

Durabla SCV stainless steel, in-line, "Basic-Check", check valve featuring a 2" NPT connection. Series SCV check valves are corrosion-resistant, dependable, versatile, and economical valves whose spring-assisted construction assures a long service life.

Durabla SCV stainless steel, in-line, "Basic-Check", check valve featuring a 3" NPT connection. Series SCV check valves are corrosion-resistant, dependable, versatile, and economical valves whose spring-assisted construction assures a long service life.

Watts number 600 series 3/8" FIP in-line vertical check valve for 15 psi maximum operating steam pressure, 400 WOG, with a brass body and Teflon disc. These valves can be installed vertically or horizontally.

Watts number 600 series 1/2" FIP in-line vertical check valve for 15 psi maximum operating steam pressure, 400 WOG, with a brass body and Teflon disc. These valves can be installed vertically or horizontally.

Watts number 600 series 3/4" FIP in-line vertical check valve for 15 psi maximum operating steam pressure, 400 WOG, with a brass body and Teflon disc. These valves can be installed vertically or horizontally.

Watts number 600 series 1" FIP in-line vertical check valve for 15 psi maximum operating steam pressure, 400 WOG, with a brass body and Teflon disc. These valves can be installed vertically or horizontally.

Watts number 600 series 1-1/4" FIP in-line vertical check valve for 15 psi maximum operating steam pressure, 400 WOG, with a brass body and Teflon disc. These valves can be installed vertically or horizontally.

Watts number 600 series 1-1/2" FIP in-line vertical check valve for 15 psi maximum operating steam pressure, 400 WOG, with a brass body and Teflon disc. These valves can be installed vertically or horizontally.

Watts number 600 series 2" FIP in-line vertical check valve for 15 psi maximum operating steam pressure, 400 WOG, with a brass body and Teflon disc. These valves can be installed vertically or horizontally.

McDonnell & Miller model number TC4 is a Test-N-Check hot water boiler control valve which simplifies the code mandated testing of low water cut-offs by eliminating the need to drain the system.

McDonnell & Miller model number TC-L is a lower valve for model number TC-4 Test-N-Check valves.

McDonnell & Miller model number TC-U is an upper valve for model number TC-4 Test-N-Check valves.

Apollo 163T bronze swing check valve with a 1/4" NPT connection. This valve is rated to 125 psi up to 353°F, has a cold working pressure of 200 psi at 100°F, and a temperature range of -20°F to 406°F.

Apollo 163T Series bronze swing check valve with a 1/2" NPT connection. This valve is rated to 125 psi up to 353°F, has a cold working pressure of 200 psi at 100°F, and a temperature range of -20°F to 406°F.

Apollo 163T Series bronze swing check valve with a 3/4" NPT connection. This valve is rated to 125 psi up to 353°F, has a cold working pressure of 200 psi at 100°F, and a temperature range of -20°F to 406°F.

Apollo 163T Series bronze swing check valve with a 1" NPT connection. This valve is rated to 125 psi up to 353°F, has a cold working pressure of 200 psi at 100°F, and a temperature range of -20°F to 406°F.