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It features a robust construction suitable for modulating steam or water valves according to pneumatic signals from a controller
Diaphragm: Corrosion-resistant
This damper offers reliable construction and performance for effective ventilation and airflow management
It weighs 3 pounds and is an OEM part
SIEMENS 331-4311 Building Technology 3-7 3Actuatorextendedshaft old-gtin_39318886121583 It features a robust constructionSiemens Damper Actuator Pneumatic No 3 Actuator Control Signal: 3 7 psi 90 deg Rotation 23 8 Inch Stroke 3 8 Inch Extended Shaft 30 psig 35 140 deg F Aluminum Totally enclosed to protect internal parts Variety of spring ranges for sequencing Fixed or pivot mounting models Pivot mounting for extended shaft Positioning relay (optional) Variety of mounting linkage kits for special applications Threaded shaft for easy mounting to accessory thread
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