STAF-SG – ANSI flanges
Balancing valve – DN 20-400
A flanged, ductile iron balancing valve that delivers accurate hydronic performance in an impressive range of applications. The STAF-SG is ideal for use mainly on the secondary side in heating and cooling systems.
Product branding
Features and Benefits
Handwheel
Equipped with a digital read-out, the handwheel ensures accurate and straightforward balancing.
Handwheel for DN 65-150 with side reading makes the read-out easy from any angle.
Accurate and precise
Provides high accuracy of measurement.
Self-sealing measuring points
For simple, accurate balancing.
Positive shut-off function
For easy maintenance.
Applications
Heating (not steam) and cooling systems.
Functions
Balancing
Measuring
Presetting
Shut-off
Temperature
Max. working temperature: 248°F
Min. working temperature: 14°F
Media
Water or neutral fluids, water-glycol mixtures (0-57%).
Marking
DN 65-400: TA, Class 150, size (inch), 60-40-18 (material), casting date and flow direction arrow.
CE-marking:
CE: STAF-SG (Class 150) DN 65-150.
CE 0409*: STAF-SG (Class 150) DN 200-300.
*) Notified body
Material
DN 20-150:
Bonnet, cone and spindle of AMETAL®.
DN 200-300:
Bonnet and cone of ductile iron EN-GJS-400-15, and spindle of AMETAL®.
DN 350-400:
Bonnet of ductile iron EN-GJS-400-15, cone of silicon brass CuZn16Si4-C (EN 1982) and gunmetal CuSn5Zn5Pb5 (EN 1982), and spindle of AMETAL®.
Cone DN 100-400: PTFE coated.
Seals: EPDM.
Slip washer: PTFE.
Bonnet bolts: Surface treated steel.
Measuring points: AMETAL® and EPDM.
Handwheel: DN 20-50 polyamide and TPE, DN 65-150 polyamide, DN 200-400 aluminium.
AMETAL® is the dezincification resistant alloy of IMI Hydronic Engineering
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