check backflow preventer

Swing Check Valve with Lever and Counter Weight

Swing Check Valve with Lever and Counter Weight

AWWA C508 Swing Check Valve, Cast Iron A 126 GR.B, 150#

AWWA C508 Swing Check Valve, Cast Iron A 126 GR.B, 150#

Titanium Alloy TA2 Check Valve, 2-1/2 Inch, 150 LB, BS 1868

Titanium Alloy TA2 Check Valve, 2-1/2 Inch, 150 LB, BS 1868

EN 1984 Check Valve, DN200, PN10, WCB, Integral Seat, RF

EN 1984 Check Valve, DN200, PN10, WCB, Integral Seat, RF

1 Inch Swing Check Valve, ASTM A350 LF2, 800 LB, RF Ends

1 Inch Swing Check Valve, ASTM A350 LF2, 800 LB, RF Ends

ASTM A216 WCB Check Valves, API 6D, 6 IN, 300 LB, RF Flanged

ASTM A216 WCB Check Valves, API 6D, 6 IN, 300 LB, RF Flanged

High Pressure Soring Water Meter Nozzle Check Valve

High Pressure Soring Water Meter Nozzle Check Valve

Soring Water Meter Nozzle Check Valve For Fire Fighting

Soring Water Meter Nozzle Check Valve For Fire Fighting

Quick Response Valve Vertical Alarm Check Valve

Quick Response Valve Vertical Alarm Check Valve

High Pressure Soring Water Meter Nozzle Check Valve

High Pressure Soring Water Meter Nozzle Check Valve

Bronze Y-Pattern Swing Check Valve, 1/4-3IN, Class 200-300

Bronze Y-Pattern Swing Check Valve, 1/4-3IN, Class 200-300

ASTM A126 Grade B Check Valve, MSS SP-71 I, Bolted Bonnet

ASTM A126 Grade B Check Valve, MSS SP-71 I, Bolted Bonnet

API 6D Check Valve with Cylinder, A216 WCB, 30 Inch, 600 LB

API 6D Check Valve with Cylinder, A216 WCB, 30 Inch, 600 LB

Bronze Check Valves,Threaded End

Bronze Check Valves,Threaded End

Cast Steel Flanged Swing Check Valves, ANSI class 150

Cast Steel Flanged Swing Check Valves, ANSI class 150

API 6D Cast Steel Swing Check Valve,ANSI B16.5

API 6D Cast Steel Swing Check Valve,ANSI B16.5

ANSI,DIN,JIS,GB Lift Check Valve:ASME B16.5 Flange,150LB~600LB

ANSI,DIN,JIS,GB Lift Check Valve:ASME B16.5 Flange,150LB~600LB

Swing Check Valve

Swing Check Valve

Lift Check Valve

Lift Check Valve

Butterfly Check Valve, Wafer Type, Cast Iron Body

Butterfly Check Valve, Wafer Type, Cast Iron Body

Flanged Piston Check Valve, A182 F51 DN80 PN16

Flanged Piston Check Valve, A182 F51 DN80 PN16

Swing Check Valves: API 6D, BS 1868 - 1873, ASME B16.34

Swing Check Valves: API 6D, BS 1868 - 1873, ASME B16.34

Wafer Check Valves: API 594, API 6D

Wafer Check Valves: API 594, API 6D

Lift Check Valves: BS 1868 - 1873, API 6D, ASME B16.34

Lift Check Valves: BS 1868 - 1873, API 6D, ASME B16.34

American Standard Swing Check Valve

American Standard Swing Check Valve

Swing Forged Steel Check Valve

Swing Forged Steel Check Valve

Welded Check Valve

Welded Check Valve

Swing Check Valves: DIN 3840, BS EN 1868, EN 14341

Swing Check Valves: DIN 3840, BS EN 1868, EN 14341

Lift Check Valves: DIN EN 12516-1, BS EN 1868, EN 12569

Lift Check Valves: DIN EN 12516-1, BS EN 1868, EN 12569

Wafer Butterfly Check Valve

Wafer Butterfly Check Valve

Silent Check Valve

Silent Check Valve

Ball Check Valve

Ball Check Valve

Swing Check Valve

Swing Check Valve

Lift Check Valve

Lift Check Valve

Wafer Double Disc Swing Check Valve

Wafer Double Disc Swing Check Valve

Swing Check Valve with Weight Hammer, DN15-DN600, PN6-PN100

Swing Check Valve with Weight Hammer, DN15-DN600, PN6-PN100

F304 Full Bore Check Valve, ASME B16.34, 1500 LB, 2 Inch, BW

F304 Full Bore Check Valve, ASME B16.34, 1500 LB, 2 Inch, BW

Position Check Valve, A182 F51, PN 150, Ring Type Joint

Position Check Valve, A182 F51, PN 150, Ring Type Joint

Wafer Type Butterfly Check Valve, DN350, PN10, Cast Iron

Wafer Type Butterfly Check Valve, DN350, PN10, Cast Iron

Swing Check Valve, ASTM A216, API 6D, 2.5 Inch, 2500#

Swing Check Valve, ASTM A216, API 6D, 2.5 Inch, 2500#

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Swing Check Valve with Lever and Counter Weight

Swing Check Valve with Lever and Counter Weight

AWWA C508 Swing Check Valve, Cast Iron A 126 GR.B, 150#

AWWA C508 Swing Check Valve, Cast Iron A 126 GR.B, 150#

Titanium Alloy TA2 Check Valve, 2-1/2 Inch, 150 LB, BS 1868

Titanium Alloy TA2 Check Valve, 2-1/2 Inch, 150 LB, BS 1868

EN 1984 Check Valve, DN200, PN10, WCB, Integral Seat, RF

EN 1984 Check Valve, DN200, PN10, WCB, Integral Seat, RF

1 Inch Swing Check Valve, ASTM A350 LF2, 800 LB, RF Ends

1 Inch Swing Check Valve, ASTM A350 LF2, 800 LB, RF Ends

ASTM A216 WCB Check Valves, API 6D, 6 IN, 300 LB, RF Flanged

ASTM A216 WCB Check Valves, API 6D, 6 IN, 300 LB, RF Flanged

High Pressure Soring Water Meter Nozzle Check Valve

High Pressure Soring Water Meter Nozzle Check Valve

Soring Water Meter Nozzle Check Valve For Fire Fighting

Soring Water Meter Nozzle Check Valve For Fire Fighting