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Application

Suitable for measuring flow rates.

Description

A flow measurement device.


Features and benefits:

  • DM900 is a stainless steel orifice plate which has a square edged entrance.
  • The two stainless steel extension tubes are fitted with Crane P84 pressure test points.
  • Accuracy of flow measurement at normal velocities is ±5%.
  • DM900 can be used as a single unit or close coupled to other regulating or isolating valves to provide accurate flow measurement.
  • Suitable for use with PN10, PN16, or PN25 flanges or flanged valves with ratings detailed in the appropriate flange or valve product standard.
  • WRAS Approved product in sizes DN65 to DN150.

General information

Color

Silver

Material

Steel

Guidance for specification option:

  • Stainless steel
  • DZR

Uniclass

Pr_65_54_95_30 Flow-measuring valvesPrimary

Specification data - Flow-measuring valves

Standard

To BS 7350:1990 and BS EN 1092-1+2.

Arrangement

3.

Material

Stainless steel and DZR.

Connections

Flanged to BS EN 1092-2.

Manufacturer guidance

  • Can be mounted between valve and/or pipe flanges to BS EN 1092-1+2 with PN10, PN16 or PN25 ratings.
  • The outside diameter ensures a proper alignment when installed between PN10/16 flanges and PN25 flanges up to 80 mm size.
  • When assembling between PN25 flanges sized 100 mm and larger, ensure the device has been correctly centred with the mating flanges.

Inlets/outlets diameter

20 mm.

Dimensions

116 x 63 mm.

Manufacturer guidance

Larger sizes available on application, except pressure rating exceeds BS.

Weight

0.7 kg.

Approvals

Water Regulations Advisory Scheme (WRAS).

PressureRange

Temperature : -10 to +120°C: 25 bar. When fitted with P84 pressure test points, the DM900 is limited to 120°C max. For use at temperatures above 120°C, suitable alternative pressure test points should be fitted For temperatures between 120 - 180°C, replace P84 with P82.

Flow capacity

6 Kv and 4.7 Kvs.

Guidance for specification option:

Headloss (K): 9.6.

Manufacturer guidance

Flow coefficient Kv.

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