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Fig. 973W Double Regulating Valve

Verified by manufacturer 2 months ago

DN65

Hattersley Variant:

Ductile iron, lever operated double regulating valve.

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Description

Ductile iron, lever operated double regulating valve.


Features and benefits:

  • WRAS Approved Double Regulating Valves consist of a fully lugged, WRAS Approved EPDM liner butterfly valve with a Double Regulating Lever.
  • The Double Regulating feature allows the valve to be used for isolation and to be reopened to its pre-set position, to maintain required flow rate.
  • Use the Fig. 973W with Orifice plate Fig. M2000 for Commissioning Set.

General information

Color

Blue

Guidance for specification option:

Body and lever.

Silver

Yellow

Guidance for specification option:

Disc.

Material

Cast iron

Uniclass

Pr_65_54_95_26 Double regulating valvesPrimary

CAWS

S90/650 Flow-reducing/ servicing valves

S90/650 Flow reducing/ servicing valves

Product range

Public Health

Specification data - Double regulating valves

Material

Body: Ductile iron, Disc: Aluminium bronze, Seat: EPDM, Shaft: Stainless steel grade 410 – 1.4006, Taper pin: Steel grade 316, Key: Carbon steel, O-ring: Nitrile (Buna), Shaft bushing: PTFE.

Guidance for specification option:

Shaft bushing PTFE option.

Body: Ductile iron, Disc: Aluminium bronze, Seat: EPDM, Shaft: Stainless steel grade 410 – 1.4006, Taper pin: Steel grade 316, Key: Carbon steel, O-ring: Nitrile (Buna), Shaft bushing: Bronze.

Guidance for specification option:

Shaft bushing Bronze option.

Manufacturer guidance

  • BS EN material grade is the nearest equivalent to the ASTM grade.
  • EPDM: WRAS Approved Ethylene Propylene Diene Monomer.
  • Ductile iron to BS EN 1563 EN-JS 1030, ASTM A536 65-45-12.
  • Stainless steel grade 410 to BS EN 10088-1: 2014, 1.4006 and ASTM UNS41000 (SS410).
  • Steel to ASTM A276 Type 316.
  • Aluminium bronze to BS EN 1982: 2008 CC331G and ASTM B148 C95400.

Connections

Flanged to BS EN 1092-2, PN25.

Third party certification:

WRAS Approved.

PressureRange

Temperature: -10 to +80°C: 16 bar.

Guidance for specification option:

Ratings align with BS EN 1092-2 PN16.

Inlets/outlets diameter

DN65.

Manufacturer guidance

Nominal.

Dimensions

207 x 95 x 260 x 48 mm.

Manufacturer guidance

Nominal A x B x C x D.

Weight

5 kg.

Flow capacity

170 Kv.

PressureLossCoefficient

0.856.

Manufacturer guidance

Headloss coefficient (K).

Sustainability data

Material

Cast iron

Recyclability

Recycle locally

Expected Life

20 year

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