D901 & D902 Flow Measurement Device
Verified by manufacturer 9 days ago
D901 DN20
D901 DN20
A flow measurement device.
Description
A flow measurement device.
D901 Flow Measurement Device is suitable for systems where pipes have been sized on the basis that pipe frictional losses lie in the range 100 to 400 Pa/m.
D902 Flow Measurement Device (1/2"/15 mm size only) is suitable for the measurement of ultra-low flows in the range 0.015 to 0.06 L/sec e.g. flows to fan coil units.
Features and benefits:
- Square edged entrance orifice plates with tappings for P84 insertion style test points.
- Flow measurement accuracy of ±5%.
General information
Specification data - Flow-measuring valves
Standard | To BS 7350: 1990, BS EN 10226, BS EN 1254/2, BS EN 12165 and BS EN 12164. |
Material | DZR copper alloy. |
Connections | Pressure-tight joints threaded to BS EN 10226-1 and compression to BS EN 1254-2. |
Inlets/outlets diameter | 20 mm. |
Dimensions | 58 x 61 mm. |
Weight | 0.3 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. Maximum temperature 120°C. WRAS Approved Product to 99°C. |
Flow capacity | 6.1 Kv and 4.7 Kvs. Guidance for specification option: Headloss (K): 9.1. |
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