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D931 Fixed Orifice Double Regulating Valve

Verified by manufacturer 11 days ago

DN15

Crane Fluid Systems Variant:

A microset handwheel operated, fixed orifice double regulating valve.

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Application

Suitable for installation where flow needs to be regulated and flow rate measured.

Description

A microset handwheel, fixed orifice operated double regulating valve.


Features and benefits:

  • The double regulating valve, with its integral fixed orifice design offers an accuracy of ± 5% on all settings, for precise flow regulation and measurement.
  • The double regulating feature allows the valve to be used for isolation and to be reopened to its pre-set position to maintain required flow rate.
  • Y-Pattern globe valves having characterised throttling disc 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 handwheel.

General information

Color

Bronze

Copper

Material

Bronze

Copper alloy

Guidance for specification option:

DZR copper alloy

Plastic

Uniclass

Pr_65_54_95_26 Double regulating valvesPrimary

CAWS

S90/650 Flow reducing/ servicing valves

S90/650 Flow-reducing/ servicing valves

Specification data - Double regulating valves

Standard

To BS 7350:1990, BS EN 10226-2 (ISO 7-1), BS 2779 (ISO 228) and BS EN 1254/2.

Arrangement

Globe.

Guidance for specification option:

Y-pattern.

Material

Bronze BS EN 1982 CC491K, DZR Copper Alloy BS EN 12164/5 CW602N, EPDM Rubber and Plastic.

Guidance for specification option:

Body: Bronze; Bonnet, Stem, Disc, Orifice insert, P84 Test valve: DZR Copper alloy; O-Ring seal: EPDM rubber; Handwheel: Plastic.

Connections

Compression to BS EN 1254-2.

Manufacturer guidance

  • Adaptor kits for use with copper tube also available.
  • Also available threaded to ANSI B1.20.1AT.

Inlets/outlets diameter

15 mm.

Dimensions

87 x 105 mm.

Manufacturer guidance

Refer to technical datasheet for detailed dimensions.

Weight

0.61 kg.

Approvals

Water Regulations Advisory Scheme (WRAS).

PressureRange

Temperature (Threaded): -10 to +100°C: 25 bar, Temperature (Threaded): +110°C: 23.4 bar, Temperature (Threaded): 120°C: 21.8 bar. Temperature (Compression): -10 to +30°C:16 bar, Temperature (Compression): +65°C: 10 bar, Temperature (Compression): +120°C: 5 bar. WRAS approved -10 to +85°C.

Flow capacity

1.87 Kv and 2.2 Kvs.

Guidance for specification option:

Headloss (K): 30.27.

Manufacturer guidance

Flow coefficient Kv.

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