IMI TA STAF balancing valve - PN16 and PN 25 - DN 20-400

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IMI TA STAF balancing valve - PN16 and PN 25 - DN 20-400

A flanged balancing valve in bronze design that achieves accurate hydronic balancing results in an extremely wide range of applications. STAF-R valves are ideal for use especially in heating and cooling systems. See more

Technical Specifications

Drinking water certificate
NO
Maximum liquid temperature [°C]
120
Maximum pressure [bar]
16 - 25
Construction
flanged

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in stock >10 pcs

from 838.53 € VAT included

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Delivery accross EU within 3-7 business days %

Brand:
IMI
Category:
Measurement and control
Product No.:
MAS000568

Product variants

  • Technical Specifications
  • Product No.
  • Drinking water certificate
  • Maximum liquid temperature [°C]
  • Maximum pressure [bar]
  • Construction
  • Availability
  • Price

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Product description

A flanged balancing valve in bronze design that achieves accurate hydronic balancing results in an extremely wide range of applications. STAF-R valves are ideal for use especially in heating and cooling systems.

Features and benefits

Control head
The display of the number on the scale allows accurate balancing and easy reading of the setting value.
Control head for DN 65-150 with side setting indicator makes it easy to read at any angle.

Accurate and precise
It provides high measurement accuracy.

Self-sealing measuring nipples
For easy and accurate balancing.

Pressure balanced cone
Easy to control.

Technical description

Fields of application:
Heating and cooling systems.

Function:
Balancing
Setting with detent
Flow, pressure and temperature measurement
Closing (the cone for DN 100-400 valves is pressure-balanced).

Dimensions:
STAFF: DN 65-150
STAF-SG: DN 20-400

Pressure class:
STAFF: PN 16
STAF-SG: PN 16 and PN 25 (according to type)

Temperatures:
Max. working temperature: 120 °C
Min. working temperature: -10°C

Liquids:
Water and neutral liquids, glycol-based antifreezes (0-57%).

Material:
Body, STAF: gray cast iron EN-GJL-250 (GG 25).
Body, STAF-SG: ductile iron EN-GJS-400-15.

DN 20-150:
Top, cone and spindle: AMETAL®.
DN 200-300:
Top and cone: ductile iron EN-GJS-400-15, and spindle AMETAL®.
DN 350-400:
Top: ductile iron EN-GJS-400-15, cone: ductile iron EN-GJS-400-15 and bronze CuSn5Zn5Pb5 (EN 1982), spindle AMETAL®.

Cone DN 100-400: PTFE coated

Seal: EPDM.
Pad: PTFE.
Cover fixing screws: Surface-treated steel.
Nipples for measuring: AMETAL® and EPDM.
Head: DN 20-50 polyamide and TPE, DN 65-150 polyamide, DN 200-400 aluminium.


AMETAL® is a dezincification resistant brass alloy from IMI Hydronic Engineering.

Surface finish:
DN 20-200: epoxy varnish.
DN 250-400: two-component varnish.

Designation:
Body: TA, PN, DN, flow direction arrow, material and body production date (year, month, day).
CE-marking:
CE: STAF (PN 16) DN 65-150, STAF-SG (PN 16) DN 200, STAF-SG (PN 25) DN 50-125.
CE 0409*: STAF-SG (PN 16) DN 250-400, STAF-SG (PN 25) DN 150-400.
*) Registered body.

Flanges:
ISO 7005-2, EN 1092-2.

Construction lengths:
ISO 5752 series 1 and EN 558-1 series 1.

Instructions

Technical Specifications

Drinking water certificate
NO
Maximum liquid temperature [°C]
120
Maximum pressure [bar]
16 - 25
Construction
flanged