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Fig. 250W Double Check Valves

Verified by manufacturer 2 months ago

15 mm: Fig. 250CW

Hattersley Variant:

DZR brass double check valve.

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Application

  • Suitable for risk prevention of backflow and back siphonage contamination in domestic dwellings, public and commercial buildings.
  • WRAS Approved for use with wholesome (potable) water to 85°C.
  • This valve is suitable for use on group 2 liquids only, as defined by the Pressure Equipment Directive 2014/68/EU.

Description

DZR brass double check valve, PN16.


Features and benefits:

  • Double check valves are used to prevent the risk of backflow and back siphon contamination in domestic dwellings, public and commercial buildings.
  • WRAS Approved for use with wholesome (potable) water to 85°C.
  • Compression version supplied with ends complying with BS EN 1252-2, for use with BS EN 1057 R250 (half hard) copper tube or female taper threads, complying with BS EN 10226-2.
  • Shell pressure rating for Fig. 250W and Fig. 250CW is PN16 with a maximum inlet or working pressure of 10 bar.
  • Compliant with BS EN 13959 ‘Anti-pollution check valves' family E, type D.

General information

Color

Yellow

Guidance for specification option:

Body.

Material

Brass

Guidance for specification option:

Body, vent plug, compression nut and olive.

Uniclass

Pr_65_54_40_13 Irrigation check valvesPrimary

CAWS

S90/630 Double check valve assemblies

S90/630 Double-check valve assemblies

S14/325 Backflow prevention devices

Product range

Public Health

Specification data - Irrigation check valves

Third party certification

WRAS Approved.

Pressure rating

PN16.

Connections

Compression to BS EN 1252-2.

Third party certification:

To BS EN 13959 ‘Anti-pollution check valves’ family E type D.

PressureRange

Temperature: +85°C maximum: 16 bar.

Guidance for specification option:

WRAS Approved to 85°C.

Manufacturer guidance

  • Shell pressure PN16.
  • Maximum inlet or working pressure: 10 bar.
  • Minimum opening pressure: 0.2 bar.

Dimensions

82.1 x 63.4 x 25.2 x 29.4 mm.

Manufacturer guidance

  • Nominal Compression: A x B x C x D.
  • Nominal Threaded: A x B x C.

Weight

0.17 kg.

Inlets/outlets diameter

15 mm.

Material (all components)

Body and compression nut: Brass CW602N, Vent plug: Nylon, Compression olive: Cartridge brass H62, Cartridge: Acetal, O-ring: NBR or EPDM, Retaining clip: Stainless steel grade 304, Plating: Nickel plated.

Guidance for specification option:

Body: DZR brass.

Manufacturer guidance

  • Brass (Body, and compression nut) to BS EN 12165 CW602N and cartridge brass to BS EN H62.
  • Stainless steel to AISI 304.



Sustainability data

Material

Brass

Guidance for specification option:

Body, vent plug, compression nut and olive.

Recyclability

Recycle locally

Expected Life

20 year

Literature

Fig. 250W Double Check Valves - TM65-HATTERSLEY-FIG. 250W-DN15

Fig. 250W Double Check Valves - TM65-HATTERSLEY-FIG. 250W-DN15

Fig. 250W Double Check Valves - TM65-HATTERSLEY-FIG. 250W-DN20

Fig. 250W Double Check Valves - TM65-HATTERSLEY-FIG. 250W-DN20

Fig. 250W Double Check Valves - TM65-HATTERSLEY-FIG. 250W-DN25

Fig. 250W Double Check Valves - TM65-HATTERSLEY-FIG. 250W-DN25

Fig. 250W Double Check Valves - TM65-HATTERSLEY-FIG. 250W-DN32

Fig. 250W Double Check Valves - TM65-HATTERSLEY-FIG. 250W-DN32

Fig. 250W Double Check Valves - TM65-HATTERSLEY-FIG. 250W-DN40

Fig. 250W Double Check Valves - TM65-HATTERSLEY-FIG. 250W-DN40

Fig. 250W Double Check Valves - TM65-HATTERSLEY-FIG. 250W-DN50

Fig. 250W Double Check Valves - TM65-HATTERSLEY-FIG. 250W-DN50

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