Powers/Siemens Pneumatic Actuators

Powers/Siemens Light Duty Damper Actuators

The No. 3 Pneumatic Actuator is a rugged metal fabricated device designed with a 2-3/8'' stroke for gradual or positive actuation of HVAC and fire/smoke dampers.

Torque: 10 in.lb. Stroke: 2-3/8''

Part # Spring Feature  
331-4311 3-7# Post Mounted Actuator With Universal Mounting Kit Call... Add to Order
331-4511 5-10# Post Mounted Actuator With Universal Mounting Kit Call... Add to Order
331-4811 8-13# Post Mounted Actuator With Universal Mounting Kit Call... Add to Order

Powers/Siemens Medium Duty Damper Actuators

The No. 4 actuator is recommended for applications such as control of outdoor air, return air, mixed air, exhaust, face and bypass, fan discharge, multisection, static pressure control, fan inlet vanes and other special applications.

Actuator, clevis, crank and rocker arm. Universal Mounting for extended shaft or frame mounting. Typical 331-2973.
Torque: 30 in.lb. Stroke: 4''
For older #4 actuators; up to part# 331-2885, use replacement diaphragm #333-072.

Part # Spring Features  
147-2000 - Positioning Relay Call... Add to Order
147-314 - Relay Mounting Kit Call... Add to Order
331-2973 8-13# Post Mounted Actuator With Universal Mounting Kit Call... Add to Order
331-3000 3-8# Post Mounted Actuator With Universal Mounting Kit Call... Add to Order
331-3001 3-13# Post Mounted Actuator With Universal Mounting Kit Call... Add to Order
331-3002 5-10# Post Mounted Actuator With Universal Mounting Kit Call... Add to Order
332-2973 8-13# w/ pos. Post Mounted Actuator With Universal Mounting Kit Call... Add to Order
333-071 - Diaphragm Kit Call... Add to Order

Powers/Siemens Heavy Duty Damper Actuators

Torque: 50 in.lb. Stroke: 4''

RULE OF THUMB
When Estimating Damper Actuators For Modulating Service, Allow 5-6 in.lb. For Each Square Foot Of Damper Face Area At Or Below 1000 Fpm Face Velocity

Part # Spring Desc  
331-3012 3-8# Post Mounted Actuator With Universal Mounting Kit Call... Add to Order
331-3013 3-13# Post Mounted Actuator With Universal Mounting Kit Call... Add to Order
332-3011 8-13# w/ pos. Post Mounted Actuator With Universal Mounting Kit Call... Add to Order
333-572 - Diaphragm Kit Call... Add to Order

Replacement POWERS Powermite Valve Actuator

Powers Powermite & Powertop Repair Parts

Powers Powermite & Powertop Valves can be completely rebuilt quickly in the field. They have a spin-on replacement actuator & trim assembly which can be installed without removing the valve body from the line. By installing the new top and changing the disc, you virtually have a new valve with a minimum of trouble.

Series 656 Powermite Repair Parts

Part # Size Repair Parts  
656-599 1/2'' N.O. Replacement Actuator & Trim Assembly Call... Add to Order
656-600 3/4'' N.O. Replacement Actuator & Trim Assembly Call... Add to Order
656-601 All Repacking Kit Call... Add to Order
656-736 All Diaphragm Kit (5/pk) Call... Add to Order
657-800 1/2'' N.O. Replacement Disc Kit (10/pk) Call... Add to Order

Powers Series 658 Powertop Repair Parts

658-166 Diaphragm Kit
Each kit contains five (5) diaphragms, mounting screws to replace those lost or damaged, and TB235 replacement instructions. See table for ordering information.

Part # Size Parts  
658-070 1/2'' Replacement Actuator & Trim Assembly 2-6# Call... Add to Order
658-071 3/4'' Replacement Actuator & Trim Assembly 2-6# Call... Add to Order
658-072 1'' Replacement Actuator & Trim Assembly 2-6# Call... Add to Order
658-074 1-1/4'' Replacement Actuator & Trim Assembly 2-6# Call... Add to Order
658-166 All Diaphragm Kit (5 Pack) Call... Add to Order
658-167 All Stem Packing Kit (10 Pack) Call... Add to Order