Summary
Ductile iron pressure reducing valve, PN25.
Ductile iron pressure reducing valve, PN25.
Application
Suitable for drinking water applications only (medium use), up to 85°C.
Suitable for drinking water applications only (medium use), up to 85°C.
Description
Ductile iron pressure reducing valve, PN25.
Features and benefits:
- PRVs enable control of pressure from boosted cold water supplies to match site requirements.
- Has a pilot valve assembly to enable accurate pressure control.
- Easy setting of the outlet pressure using built-in pressure gauge.
- Simple to install.
- Sizes DN100 and DN150.
Ductile iron pressure reducing valve, PN25.
Features and benefits:
- PRVs enable control of pressure from boosted cold water supplies to match site requirements.
- Has a pilot valve assembly to enable accurate pressure control.
- Easy setting of the outlet pressure using built-in pressure gauge.
- Simple to install.
- Sizes DN100 and DN150.
Color
Blue, Yellow, Brown, Silver
Blue, Yellow, Brown, Silver
Material
Cast iron
Cast iron
SKU Code
Fig. M425
Fig. M425
Specification
Classification data
Standard
To BS EN 558 Series 1.
To BS EN 558 Series 1.
Third-party certification
Water Regulations Advisory Scheme-approved.
Water Regulations Advisory Scheme-approved.
Form
Water pressure reducing.
Water pressure reducing.
Adjustment
Adjustable.
Adjustable.
Operating conditions
-
-
Temperature (maximum)
85°C.
85°C.
Maximum working pressure
25 bar.
25 bar.
Connections
Flanged to BS EN 1092-2.
Flanged to BS EN 1092-2.
Additional properties
Inlets/outlets diameter
DN100.
DN150.
Dimensions
350 x 390 x 43 x 43 mm.
480 x 500 x 88 x 48 mm.
Weight
43 kg.
48 kg.
Material (all components)
Body, disc, diaphragm disc, O-ring and cover: Ductile iron, Plug, adaptor and air release nut: Brass, Body seat, bolt locking plate, washer bolt and nut: Stainless steel, Seat locking bolt and long bolt: Stainless steel grade 304, Stem: Stainless steel grade 303, Spring: Stainless steel grade 302, Washer, spring washer, nut and bolt: Stainless steel grade 316, Nameplate: Aluminium, Disc facing, O-ring and diaphragm: Rubber, Lifting nut and guide cover bolts: Steel, Guide cover: Brass/ bronze, Disc guide: Bronze and stainless steel.
Body, disc, diaphragm disc, O-ring and cover: Ductile iron, Plug, adaptor and air release nut: Brass, Body seat, bolt locking plate, washer bolt and nut: Stainless steel, Seat locking bolt and long bolt: Stainless steel grade 304, Stem: Stainless steel grade 303, Spring: Stainless steel grade 302, Washer, spring washer, nut and bolt: Stainless steel grade 316, Nameplate: Aluminium, Disc facing, O-ring and diaphragm: Rubber, Lifting nut and guide cover bolts: Steel, Guide cover: Brass/ bronze, Disc guide: Bronze and stainless steel.
Integral accessories
Strainer, built-in pressure gauge and pilot valve.
Strainer, built-in pressure gauge and pilot valve.
DownstreamPressure
0.5–6 bar.
0.5–6 bar.
FlowRateRange
1–160 m³/h.
1–350 m³/h.
Volume
0.7 L.
1.5 L.
Flow capacity
167 m³/h.
407 m³/h.
Sustainability data
Material
Cast iron
Cast iron
Recyclability
Recycle locally
Recycle locally
Expected Life
20 year
20 year