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Fig. 2900 Thermal Circulation Valve

Verified by manufacturer 10 days ago

DN15: Fig. 2910

Hattersley Variant:

Bronze thermal circulation valves, PN16.

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Application

Suitable for domestic hot water systems to assist with protection against Legionella.

Description

Bronze thermal circulation valves, PN16.


Features and benefits:

  • Ideal for domestic hot water systems to assist with protection against Legionella.
  • Provides self-balancing, thermostatically controlled regulation of flow and disinfection.
  • Thermal disinfection at temperatures above 70°C.
  • Compact unit comprising isolation valve with thermometer access point.
  • Incorporates a settable temperature sensing cartridge, factory pre-set at a standard 57°C.
  • Has an accuracy of +/- 2°C at set temperature.
  • WRAS Approved.


Operation:

  • When the set point is preset to 57°C, the valve remains completely open up to a valve temperature of 52°C.
  • Between 52°C and the set point of 57°C, the valve starts to close.
  • When the set point temperature has been reached, a minimum volume flow is continuously flowing through the circulation system.
  • If the storage temperature is further increased to temperatures greater than 70°C to effect disinfection, the valve increases the flow.

General information

Color

Yellow

Guidance for specification option:

Body.

Green

Guidance for specification option:

Cap.

Material

Bronze

Guidance for specification option:

Body.

Plastic

Guidance for specification option:

Protective cap.

Nylon

Guidance for specification option:

Temperature adjusting cap and isolation unit handwheel.

Brass

Guidance for specification option:

Bonnet and associated parts, body seat, plug, bush, stem and stem seat retainer.

Stainless steel

Guidance for specification option:

Thermal unit stem.

Show more

Uniclass

Pr_65_54_95_26 Double regulating valvesPrimary

CAWS

S90/650 Flow-reducing/ servicing valves

S90/650 Flow reducing/ servicing valves

S90/630 Double check valve assemblies

S90/680 Thermostatic mixing valves

S90/680 Thermostatic mixing valves

Product range

Public Health

Specification data - Double regulating valves

Material

Body: Bronze CC49IK, Protective cap: Polypropylene, Temperature adjusting cap (TU) and handwheel isolation unit (IU): Nylon 6, Body seat, plug, bush, bonnet and associated parts (TU): DZR brass CW602N, Bonnet, stem and stem seat retainer (IU): DZR brass CW602N, Stem (TU): Stainless steel SS EN 10088-3 – 1.4305, O-ring seals (TU and IU): EPDM rubber, Body seat (IU): PTFE.

Guidance for specification option:

  • TU: Thermal Unit.
  • IU: Isolation Unit.

Manufacturer guidance

  • Bronze to BS EN 1982 CC49IK.
  • DZR brass to BS EN 12164 CW602N.
  • EPDM: WRAS Approved ethylene propylene diene monomer.
  • PTFE: WRAS Approved polytetrafluoroethylene.

Connections

Taper threaded to BS EN 10226-2.

Third party certification:

WRAS Approved.

Inlets/outlets diameter

DN15.

Manufacturer guidance

Nominal.

Dimensions

114 x 80 x 37 mm.

Manufacturer guidance

  • Nominal L x H x W, where W represents diameter.
  • Thermometer fits all sizes, available on request.

Weight

0.76 kg.

Thread size

15 mm.

Manufacturer guidance

Female end connections with pipe threaded to EN 10226 Rc.

FlowClass

Low flow.

Upper temperature stability

±2°C.

Guidance for specification option:

At set temperature.

Maximum temperature

90°C.

Manufacturer guidance

  • Thermal disinfection at 70°C.
  • Settable temperature sensing cartridge, factory pre-set at standard 57°C.

PressureClass

PN16.

Integral accessories

Isolation valve with thermometer access point and settable temperature sensing cartridge.

Manufacturer guidance

Fitted with thermal circulation valve assembly.

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