Fig. 973 Double Regulating Valve
Verified by manufacturer 15 days ago
DN50: Fig. 973
DN50: Fig. 973
Ductile iron double regulating valve.
Application
Suitable for Chilled Water, LTHW and MTHW.
Description
Ductile iron double regulating valve, with ANSI version option MHA733.
Features and benefits:
- Robust iron body materials for long service life.
- Precise flow regulation.
- Fully-lugged – easy to install and operate.
- Positive flow control at all settings.
- Valves up to and including 200 mm can be supplied lever or gear box operated.
- Valves 250 mm and above supplied gear box only.
- All operators fitted with double regulating feature.
- Butterfly valves should not be less than 30° open when used for regulation duties.
General information
Color | Blue Guidance for specification option: Body and handwheel. Silver Yellow Guidance for specification option: Disc. |
Material | Cast iron |
Uniclass | |
CAWS | S90/650 Flow-reducing/ servicing valves S90/650 Flow reducing/ servicing valves |
Specification data - Double regulating valves
Standard | To BS EN 593: 2009. |
Material | Body: Ductile iron, Shaft: Stainless steel grade 431, Disc: Aluminium bronze, Liner: EPDM, Bearings: PTFE.Guidance for specification option: Standard with stainless steel shaft to BS EN 10088-1 X17CrNi16-2, ASTM AISI 431. . Body: Ductile iron, Shaft: Stainless steel grade 431, Disc: Stainless steel grade 304, Liner: EPDM, Bearings: PTFE.Guidance for specification option: Fig. 4973 and Fig. 4973G option: Stainless steel disc to BS EN 10270 X10CrNr18-8, ASTM A276 304. Manufacturer guidance
|
PressureRange | Temperature: -10 to +120°C: 16 bar. Guidance for specification option: PN16. Manufacturer guidanceTest pressures: Shell (24 bar) and seat (17.6 bar). |
Inlets/outlets diameter | DN50. Manufacturer guidanceNominal. |
Dimensions | 195 x 83 x 44 x 32 x 102 x 260 x 32 mm. Manufacturer guidance
|
Weight | 4.0 kg. |
Flow capacity | 167 Kv. |
Sustainability data
Material | Cast iron |
Recyclability | Recycle locally |
Expected Life | 20 year |