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MH737 Commissioning Set

Verified by manufacturer 2 months ago

DN65

Hattersley Variant:

Ductile iron variable orifice double regulating valve.

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Application

  • Primarily used in injection or other circuits requiring a double regulating valve for system balancing.
  • Suitable for flow regulation and isolation.
  • Supplied with Fig. 631 test points to enable flow measurement.

Description

Ductile iron variable orifice double regulating valve, with ANSI version option MHA737.


Features and benefits:

  • The double regulating feature allows the valve to be used for isolation and to be re-opened to its pre-set position to maintain required flow rate.
  • Y-Pattern globe valve suitable for flow regulation and isolation.
  • Accuracy of flow measurement is ±10% at the full
  • open position of the valve.
  • Some reduction in accuracy occurs at partial openings of the valve in accordance with BS 7350.
  • Supplied with Fig. 631 test points to enable flow measurement.
  • Valve operation by means of a hand wheel.

General information

Color

Blue

Guidance for specification option:

  • Body, bonnet and handwheel.
  • Downstream test point marker.

Silver

Guidance for specification option:

Stem.

Red

Guidance for specification option:

Upstream test point marker.

Material

Bronze

Guidance for specification option:

Disc bush and seat ring.

Rubber

Guidance for specification option:

EPDM coating on cast iron disks.

Brass

Guidance for specification option:

Gland (65 to 150 mm).

Stainless steel

Guidance for specification option:

Stem.

Steel

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Uniclass

Pr_65_54_95_26 Double regulating valvesPrimary

CAWS

S90/650 Flow reducing/ servicing valves

S92/435 Sprinkler valve sets

S90/650 Flow-reducing/ servicing valves

S14/490 Water metering valves

S92/435 Control valve sets

Specification data - Double regulating valves

Standard

To BS 7350.

Arrangement

Globe (Y-pattern).

Material

Body and bonnet: Ductile iron, Disc: EPDM coated cast iron, Disc bush and seat ring: Bronze, Stem: Stainless steel grade 410 – 1.4006, Packing and bonnet gasket: Non-asbestos, Gland (65 to 150 mm): Brass CW614N, Gland (200 to 300 mm): Cast iron.

Manufacturer guidance

  • EPDM: Ethylene Propylene Diene Monomer.
  • Ductile iron to BS EN 1563 GJS-450-10.
  • Bronze to BS EN 1982.
  • Stainless steel grade 410 to BS EN 10088-3, 1.4006.
  • Brass to BS EN 12164: 2016 CW614N.
  • Cast iron to BS EN 1561 EN-GJL-250.

Connections

Flanged to BS EN 1092-2.

Guidance for specification option:

  • Formerly BS 4504.
  • ANSI version also available (MHA737).

PressureRange

Temperature: -10 to +120°C: 16 bar.

Guidance for specification option:

  • Ratings align with BS EN 1092-2 PN16.
  • MHA737: Class 125.

Inlets/outlets diameter

DN65.

Manufacturer guidance

Nominal.

Dimensions

290 x 262 mm.

Manufacturer guidance

Nominal A x B.

Weight

15.8 kg.

Flow capacity

85 Kv.

Manufacturer guidance

Flow coefficient Kv for valves in fully open position.

PressureLossCoefficient

4.9.

Manufacturer guidance

Headloss coefficient (K).

Integral accessories

Fig. 631 test points.

Guidance for specification option:

Red and blue supplied and fitted.

Sustainability data

Material

Bronze

Guidance for specification option:

Disc bush and seat ring.

Rubber

Guidance for specification option:

EPDM coating on cast iron disks.

Brass

Guidance for specification option:

Gland (65 to 150 mm).

Stainless steel

Guidance for specification option:

Stem.

Steel

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Recyclability

Recycle locally

Expected Life

20 year

Literature

MH737 Commissioning Set - TM65-HATTERSLEY-FIG. MH737-DN65

MH737 Commissioning Set - TM65-HATTERSLEY-FIG. MH737-DN65

MH737 Commissioning Set - TM65-HATTERSLEY-FIG. MH737-DN80

MH737 Commissioning Set - TM65-HATTERSLEY-FIG. MH737-DN80

MH737 Commissioning Set - TM65-HATTERSLEY-FIG. MH737-DN100

MH737 Commissioning Set - TM65-HATTERSLEY-FIG. MH737-DN100

MH737 Commissioning Set - TM65-HATTERSLEY-FIG. MH737-DN125

MH737 Commissioning Set - TM65-HATTERSLEY-FIG. MH737-DN125

MH737 Commissioning Set - TM65-HATTERSLEY-FIG. MH737-DN150

MH737 Commissioning Set - TM65-HATTERSLEY-FIG. MH737-DN150

MH737 Commissioning Set - TM65-HATTERSLEY-FIG. MH737-DN200

MH737 Commissioning Set - TM65-HATTERSLEY-FIG. MH737-DN200

MH737 Commissioning Set - TM65-HATTERSLEY-FIG. MH737-DN250

MH737 Commissioning Set - TM65-HATTERSLEY-FIG. MH737-DN250

MH737 Commissioning Set - TM65-HATTERSLEY-FIG. MH737-DN300

MH737 Commissioning Set - TM65-HATTERSLEY-FIG. MH737-DN300

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