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CRANE Bronze Ball Valve

CRANE Bronze Balancing Valves
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CRANE Bronze Balancing Valves

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Bronze Balancing Valves D931 Fixed Orifice Double Regulating Valve (FODRV)PN25 Threaded BS21 (ISO 7) for Single Unit Systems


Y-pattern globe valves having characterised throttling disk tending towards

equal percentage performance. Integral square edged entrance orifice plate

and P84 insertion test points fitted. Double regulating feature allows valve

opening to be set with an Allen key. Operation of the valve is by means of

the Microset hand wheel.

WRAS Approved.

End Connection

Sizes 1 to 2 BS 21 (ISO 7) parallel


1/2 & 3/4 DN15 & DN20 BS 2779 (ISO 228)


parallel, supplied with compression adaptor to suit 15 & 22mm

BS EN 1057 copper tube. Discard adaptors if connecting to steel pipe.

Also available threaded ANSI B1.20.1

Order code D931AT/D933AT/D934AT.


This single unit-commissioning valve

D931 is designed for installation in circuits where combined functions of <

regulation and flow measurement are required. Accuracy of flow measurement is ±5% across all hand wheel settings.