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STAG

A grooved end, ductile iron balancing valve that delivers accurate hydronic performance in an impressive range of applications. STAG is ideal for use mainly on the secondary side in heating and cooling systems.

Product Information

Balancing valve with grooved ends – Size 2 1/2" - 12"

A grooved end, ductile iron balancing valve that delivers accurate hydronic performance in an impressive range of applications. STAG is ideal for use mainly on the secondary side in heating and cooling systems.

Key features

Handwheel

Equipped with a digital read-out, the handwheel ensures accurate and straightforward balancing.

Self-sealing measuring points

For simple, accurate balancing.

Positive shut-off function

For easy maintenance.

Technical description

Applications:

Heating and cooling systems.

Functions:

Balancing
Pre-setting
Measuring
Shut-off (The balancing cone is pressure released).

Dimensions:

Size 2 1/2" - 12"

Pressure class:

Class 150

Temperature
[°F]
Max. pressure
[psi]
-4 to 100
250
200
235
248
225

Temperature:

Max. working temperature: 248°F
For higher temperatures (max. 302°F), please contact the nearest sales office.
Min. working temperature: -4°F

Media:

Water or neutral fluids, water-glycol mixtures (0-57%).

Material:

Body: Ductile iron EN-GJS-400-15 (~ ASTM A536 Grade 60-40-18. ISO 1083 Grade 400-15).
Size 2 1/2" - 6": Bonnet, restriction cone and spindle of AMETAL®.
Size 8" - 12": Bonnet of ductile iron EN-GJS-400-15, cone of gunmetal CuSn5Zn5Pb5 (EN 1982) and spindle of AMETAL®.
Seals: EPDM.
Bonnet bolts: Chromed steel.
Measuring points: AMETAL® and EPDM.
Handwheel: Size 2 1/2" - 6" polyamide, size 8" - 12" aluminum.


AMETAL® is the dezincification resistant alloy of IMI Hydronic Engineering.

Surface treatment:

Size 2 1/2" - 8": Epoxy painting.
Size 10" - 12": Duasolid painting.

Marking:

Body: TA, Class 150, inch size, flow direction arrow, material and casting date (year, month, day).
CE-marking according to table:

Marking
STAG
CE
DN 65-125
CE 0409*
DN 150-300
Marking
STAG
CE
Size 2 1/2" - 5"
CE 0409*
Size 6" - 12"

*) Notified body.

Face to face length:

ISO 5752 series 1, BS 2080 and EN 558-1 series 1.

The products, texts, photographs, graphics and diagrams in this document may be subject to alteration by IMI Hydronic Engineering without prior notice or reasons being given. For the most up to date information about our products and specifications, please visit www.imi-hydronic.com.

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