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Fig. 3047W Check Valve Swing Pattern

Verified by manufacturer 6 months ago

DN20

Hattersley Variant:

Bronze swing pattern check valve.

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Application

Suitable for mounting in horizontal and vertical pipe (with vertical flow upwards).

Description

Bronze check valve with a horizontal swing pattern, PN25.


Features and benefits:

  • Robust and high quality bronze body.
  • Taper threaded to BS EN 10226 ISO 7-1 (BS 21).
  • WRAS Approved to 85°C.
  • Threaded cover.

General information

Color

Yellow

Guidance for specification option:

Body.

Material

Bronze

Guidance for specification option:

Cap, body, hinge and disc holder.

Brass

Guidance for specification option:

Hinge nut, disc retaining nut and washer and disc holder.

Stainless steel

Guidance for specification option:

Hinge pin.

Steel

Guidance for specification option:

Electro brassed drive screw.

Aluminium

Guidance for specification option:

Identification plate.

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Uniclass

Pr_65_54_40_13 Irrigation check valvesPrimary

CAWS

S14/325 Backflow prevention devices

Product range

Public Health

Specification data - Irrigation check valves

Third party certification

WRAS Approved.

Standard

To BS 5154: 1991 PN25.

Pressure rating

PN25.

Connections

Threaded.

Guidance for specification option:

  • Taper threaded to BS EN 10226 ISO 7-1 (BS 21).
  • Ends threaded internal BS EN 10226.
  • Threaded cover.

PressureRange

Temperature: -10 to +90°C: 25 bar.

Guidance for specification option:

  • Rating to BS 5154: 1991, PN25.
  • Temperature restricted to +90°C.

Manufacturer guidance

Pressure test: Shell (6 bar pneumatic) and Seat (27.5 bar hydraulic).

Dimensions

66 x 42 mm.

Manufacturer guidance

Nominal A x B.

Weight

0.43 kg.

Inlets/outlets diameter

DN20.

Manufacturer guidance

Nominal.

Material (all components)

Body, cap and hinge: Bronze CC491K, Hinge nut, disc holder, retaining nut and washer: Brass CW614N, Hinge pin: Stainless steel grade 316, Identification plate: Aluminium, Drive screw: Steel electro brassed, Disc: Nitrile.

Guidance for specification option:

1/2" to 1".

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