Style BU - Bushing Valve From Check All Valves

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The Check All Valve Bushing Valve is a check valve with a standard bushing housing. This Check All Valve is adaptable to many types of service applications. It has very little restriction and produces a low pressure drop. It can be used quite effectively in systems where flow and pressure drop are critical  by the use of a reducer coupling. The Check All Valve Bushing Valve also makes an excellent vacuum breaker. The high flow rate insures maximum effectiveness for vacuum breaker service. By reversing the direction of flow it can also be used as a low-pressure relief valve.

The bushing thread sizes are designated by two sets of numbers; the first being the male thread, the second the female thread.

Check All Valves available in 316 SS, Brass, Carbon Steel.

Cut SheetsTech DataValve WeightsInstallationPressure Equipment Directive

check-all-valve bushing valve
BU Check Valve
Nominal
Pipe Size
Check All Style
Number
A Hex*
Size B
C D E Orifice
Diameter
1/2 x 3/8 BUD 1-9/32" 7/8" 1/4" 1/2 NPT 3/8 NPT 0.348
3/4 x 1/2 BUF 1-9/32" 1-1/8" 1/4" 3/4 NPT 1/2 NPT 0.464
1 x 3/4 BUH 1-13/16" 1-3/8" 1/2" 1 NPT 3/4 NPT 0.593
1-1/4 x 1 BUI 1-13/16" 1-3/4" 1/2" 1-1/4 NPT 1 NPT 0.890
1-1/2 x 1-1/4 BUJ 2-5/32" 2" 5/8" 1-1/2 NPT 1-1/4 NPT 1.135
2 x 1-1/2 BUK 2-5/32" 2-1/2" 5/8" 2 NPT 1-1/2 NPT 1.385
2-1/2 x 2 BUL 2-17/32" 3" 5/8" 2-1/2 NPT 2 NPT 1.555
3 x 2-1/2 BUM 3-3/32" 3-1/2" 1" 3 NPT 2-1/2 NPT 2.025

*May be larger and/or round.

 

check-all-valve bushing valve diagram
 
Non-Shock Pressure - Temperature Rating
Check All Valve Material P-T Rating Max. Recommended Service Temp.
316 Stainless 3000 PSIG @ 100F 700F
Carbon Steel 3000 PSIG @ 100F 700F
Brass 3000 PSIG @ 100F 400F

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