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Fig. 970W Butterfly Valve Fully Lugged (WRAS Approved)

Verified by manufacturer 22 days ago

DN100: Fig. 970W

Hattersley Variant:

A fully-lugged, wafer pattern, lever or gearbox operated butterfly valve.

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Application

Valves may be used for flow regulation.

Description

A fully-lugged, wafer pattern, lever or gearbox operated butterfly valve.


Features and benefits:

  • Ductile iron body.
  • Aluminium bronze disc.
  • Liner bonded to steel backing ring.
  • High strength, low friction bearings for upper and lower shafts, to restrain shaft deflection and ensure effective stem sealing.
  • Long neck for insulation.
  • Maintenance free.
  • Valves DN250 and larger supplied as standard with fully enclosed gear operator.

General information

Color

Blue

Guidance for specification option:

Body, shaft covering and lever.

Yellow

Guidance for specification option:

Aluminium bronze disc.

Silver

Guidance for specification option:

Stainless steel shaft.

Black

Guidance for specification option:

Buna-N O-ring.

Material

Stainless steel

Guidance for specification option:

Shaft.

Steel

Ductile iron

Guidance for specification option:

Body.

Aluminium

Guidance for specification option:

Aluminium bronze disc.

Rubber

Guidance for specification option:

  • Buna-N O-ring and EPDM liner.
  • Polytetrafluoroethylene (PTFE) bushes up to 100 mm.

Show more

Uniclass

Pr_65_54_95_08 Butterfly valvesPrimary
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Product range

Public Health

Specification data - Butterfly valves

Standard

To BS EN 593: 2009.

DN rating

DN100.

Manufacturer guidance

Nominal.

PN rating

Temperature: -10 to +80°C: PN16.

Guidance for specification option:

Non-WRAS applications: -10 to +120°C: PN16.

Manufacturer guidance

Each valve is individually hydrostatically tested to BS EN 12266-1 at the following test pressures: Shell (24 bar) and Seat (17.6 bar).

Working conditions

-

Maximum working pressure

10 to 16 bar.

Materials

-

Body

Ductile iron.

Guidance for specification option:

ASTM A536 65-45-12 and BS EN 1563 EN-JS 1030 (Nearest BS material grade equivalent to ASTM grade).

Shaft

Stainless steel grade 410, 1.4006.

Guidance for specification option:

To ASTM UNS41000 (SS410) and BS EN 10088-1: 2014 1.4006 (Nearest BS material grade equivalent to ASTM grade).

Disc

Aluminium bronze.

Guidance for specification option:

To ASTM B148 C95400 and BS EN 1982:2008 CC331G (Nearest BS material grade equivalent to ASTM grade).

Seat

Guidance for specification option:

  • O-ring: Buna-N.
  • Bushes: PTFE up to 100 mm.
  • Bushes: Bronze (lubricated) above 125 mm.
  • Liner: EPDM.

Operation

-

Manual

Lever.

Guidance for specification option:

Fig. 970W.

Dimensions

232 x 124 x 54 x 32 x 171 x 260 x 90 mm.

Guidance for specification option:

Lever.

Manufacturer guidance

  • Lever: Nominal A x B x C x D x E x F x G.
  • Geared: Nominal A x B x C x D x E x F x G x K.

Weight

12.6 kg.

Third-party accreditation

WRAS Approved.

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