Fig. 861 Check Valve Wafer Pattern
Verified by manufacturer 4 days ago
DN50: Fig. 861
DN50: Fig. 861
Cast iron and ductile iron swing pattern check valve.
Application
- Suitable for installation in vertical and horizontal pipelines.
- Suitable for use on group 2 liquids only, as defined by the Pressure Equipment Directive 2014/ 68/ EU.
- Suitable for pump duty applications.
Description
Cast iron and ductile iron check valve with a swing pattern, PN16 (Fig. 861) and PN25 (Fig. 866).
Features and benefits:
- Check valves permit flow in one direction only and close automatically if flow reverses, depending upon pressure and velocity of flow to perform the opening and closing functions.
- Non-Slam design as a result of rubber seat and spring-assisted closure.
- EPDM rubber seat to facilitate quiet operation and improve disk seating.
- Eyebolt tapped holes in sizes DN200 and above, to fit eyebolts to BS EN 1S0 3226: 2010 (eyebolts not supplied with valve).
- Design and construction lends itself to pump duty applications.
General information
Color | Blue Guidance for specification option: Body. Silver Guidance for specification option: Disc. |
Material | Cast iron Guidance for specification option: Body. |
Shape | Circle |
Uniclass | |
CAWS | S14/325 Backflow prevention devices |
Specification data - Irrigation check valves
Standard | To BS EN 558 series 16. |
Pressure rating | PN16. |
Connections | Suitable for flanged connection to BS EN 1092-2.Guidance for specification option: PN16 and PN 25. Manufacturer guidanceSuitable for mounting in horizontal and vertical pipes (with the flow upwards). |
PressureRange | Temperature: -10 to +120°C: PN16. |
Dimensions | 107 x 66.0 x 10.0 x 43.0 mm. Manufacturer guidanceNominal A x B x F x H. |
Weight | 1.5 kg. |
Inlets/outlets diameter | DN50. |
Material (all components) | Body: Cast iron EN-GJL-250, Disc, stop bolt, stem and spring: Stainless steel grade 304, Seat and gasket: EPDM, Washer: PTFE, ID Plate: Anodised aluminium. Guidance for specification option: PN16/ ANSI125: DN50–DN150. Manufacturer guidance
|
Flow capacity | 44 Kv. |
Thread size | Manufacturer guidance
|
Sustainability data
Material | Cast iron Guidance for specification option: Body. |
Recyclability | Recycle locally |
Expected Life | 20 year |
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