This Damper Push Rod has a diameter of 5/16" and is 48" in length. This damper push rod is for use with OpenAir damper actuators, 338 electric damper actuators, and Number 3 and 4 pneumatic damper actuators.
This Damper Push Rod has a diameter of 5/16" and is 36" in length. This damper push rod is for use with OpenAir damper actuators, 338 electric damper actuators, and Number 3 and 4 pneumatic damper actuators.
This Damper Push Rod has a diameter of 5/16" and is 24" in length. This damper push rod is for use with OpenAir damper actuators, 338 electric damper actuators, and Number 3 and 4 pneumatic damper actuators.
This Damper Push Rod has a diameter of 5/16" and is 18" in length. This damper push rod is for use with OpenAir damper actuators, 338 electric damper actuators, and Number 3 and 4 pneumatic damper actuators.
This Damper Push Rod has a diameter of 5/16" and is 15" in length. This damper push rod is for use with OpenAir damper actuators, 338 electric damper actuators, and Number 3 and 4 pneumatic damper actuators.
This Damper Push Rod has a diameter of 5/16" and is 12" in length. This damper push rod is for use with OpenAir damper actuators, 338 electric damper actuators, and Number 3 and 4 pneumatic damper actuators.
This Travel Stop Kit is for field assembly and allows the reduction of travel from 4" down to 2 29/32". This kit can be used with Number 6 pneumatic damper actuators.
This Shaft Extension measures 1" in diameter and 11-5/8" long and is for use with Ruskin dampers. A 1" diameter crank and 2 roll pins for assembly are included. This is for use with Number 6 pneumatic damper actuators.
This Offset Mounting Bracket is for mounting the universal mounting lug, pivot post, clevis, crank, and miscellaneous mounting hardware. This bracket is used with Number 4 and 6 pneumatic damper actuators.
This Diaphragm is a replacement for 331 Number 4 pneumatic damper actuators with discontinued cast aluminum housing, number 331 2885. This diaphragm comes in a package of five.
This Diaphragm is a replacement for 331 No. 4 pneumatic damper actuators with sheet metal cylinder housing, part numbers 331-2888 and greater. This diaphragm comes in a package of five.
This Steel Pivot Post is used for additional clearance for an actuator and includes a lockwasher, two nuts and two E-rings. This post can be used with Number 4 and 6 pneumatic damper actuators.
This field-assembled Actuator Shaft Extension Kit includes shaft/clevis adapter, clevis adapter rod, nuts, and 1/2" NPT threaded pipe. The threaded female adapters are 1/2" 14 NPT and 3/8" 24 UNS threads. This kit is for use with Number 4 and 6 pneumatic damper actuators.
This 331 Number 3 Pneumatic Damper Actuator with ball joint connector and positioning relay is a rugged, metal-fabricated device that provides gradual or positive actuation of HVAC dampers. This actuator has a nominal spring range of 8 to 13 psi, is fixed bracket mounting and has an ozone-resistant rolling rubber diaphragm. This actuator has an air connection of 1/8" NPT female with a straight dual barb fitting for 1/4" OD tubing.
This 331 Number 3 Pneumatic Damper Actuator with integral pivot and pivot post is a rugged, metal-fabricated device that provides gradual or positive actuation of HVAC dampers. This actuator has a nominal spring range of 8 to 13 psi, has extended shaft kit mounting with positioning relay and an ozone-resistant rolling rubber diaphragm. This actuator has an air connection of 1/8" NPT female with a straight dual barb fitting for 1/4" OD tubing.
This 331 Number 6 Pneumatic Damper Actuator with an extended temperature range is a rugged, metal-fabricated device that is UL recognized for use on fire dampers and leakage-rated dampers.
This 331 Number 6 Pneumatic Damper Actuator with integral pivot and pivot post is a rugged, metal-fabricated device that provides gradual or positive actuation of HVAC and fire/smoke dampers. This actuator has a nominal spring range of 8 to 13 psi, has a replaceable diaphragm and a 1/8" NPT female air connection. Also included is an extended shaft mounting kit with parts for frame mounting.
This 331Number 4 Pneumatic Damper Actuator with integral pivot and pivot post is a rugged, metal-fabricated device that provides gradual or positive actuation of HVAC and fire/smoke dampers. This actuator has a nominal spring range of 8 to 13 psi, a replaceable diaphragm and an air connection of 1/8" NPT female with a dual barb elbow fitting for 1/4" OD tubing. Also included is an universal mounting kit that allows fixed or pivot mounting, this
