Range of non-verifiable double check valve assemblies consisting of two spring loaded resilient trim in-line check valve cartridges housed in a DZR brass body, compression models are nickel plated. A drain port is provided between the cartridges. Compression models are to be used with copper pipe (manufactured to BS EN 1057). Maximum working pressure 10.0 Bar Maximum operating temperature: 85.0°C (Fig 250W models) or 60.0°C (Fig 250CW models)

Section:

0034 Backflow Prevention Devices

Section Subtitle:

SCHEDULE 2 - Section 6.2 Type ED - Non-verifiable double check valve.

WRAS Approval Number:

260102707

Basis of Compliance:

Tested to regulators Specification Test Code Sheets

Size:

1/2”, ¾”, 1.1/4” or 1.1/2” BSP (F) (Fig 250W models) 15 & 22mm compression (Fig 250CW models)

Marking:

Hattersley logo, DN, PN, flow arrow and CR on body.

Installation Requirements:

R001

Expiry date:

31/01/2031

Model:

Fig 250W Fig 250CW

Approval Holder:

Hattersley

Company Name

Hattersley

Address

11-15 Epsilon Terrace West Road Ipswich Suffolk

Postcode

IP3 9FJ

Country

United Kingdom

Phone

0766465023

General Email

tturner@cranebsu.com

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