Catalog
Valves
A-55
usa.siemens.com/hvac
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Two-Way Ball Valve Assemblies
Electronic Spring Return Actuators
NC
1/2 to 3/4"
Spring Return Actuator
Normally Closed
2P
2P w/ Dual
Aux. Switches
2P,
120 V
Floating 2-10 Vdc
2-Way
Valve Body
Part No.
Valve
Size
in.
Flow
Rate
Cv
Close
Off
psi GQD121.1P GQD126.1P GQD221.1U GQD131.1P GQD151.1P
Chrome-Plated Brass Ball and Brass Stem
1/2
0.4 200 — —
0.63 200 — —
1.0 200 — —
1.6 200 — —
2.5 200 — —
4.0 200 — —
6.3 200 — —
10 200 —
3/4
6.3 200 — —
10 200 — —
16 200 — —
25 200 —
Stainless Steel Ball and Stem
1/2
0.4 200 — —
0.63 200 — —
1.0 200 — —
1.6 200 — —
2.5 200 — —
4.0 200 — —
6.3 200 — —
10 200
3/4
6.3 200 — —
10 200 — —
16 200 — —
25 200
indicate complete assemblies.
*Denotes a full-port valve with no ow optimizer insert.
Ball
Selection Tables
DATE PAGE Descriptionofedits
Siemens offers a
5-year warranty
on valves and
actuators