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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
Designed for the high-demand environments of industrial and institutional facilities
If voltage is present but the Normally Open (NO) contacts fail to show continuity
this kit eliminates the need for improvised brackets
If it matches the 225-275 degree range and the HH18HA276 part number
Siemens Building Technology 331-2973 Kit 321894-709 Designed for the high-demand environmentsThe Siemens 331 2973 is a rugged, metal fabricated No. 4 pneumatic damper actuator designed for the gradual or positive control of HVAC systems and fire smoke dampers. Built for high demand applications, this piston type actuator features a 4 inch stroke and a nominal 8 13 psi spring range, ensuring precise positioning of ventilating systems and mixing boxes. This universal kit includes a mounting plate, pivot post, clevis, and damper crank,
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