This 331 Number 3 Pneumatic Damper Actuator is a rugged, metal-fabricated device that provides gradual or positive actuation of HVAC dampers. This actuator has a nominal spring range of 5 to 10 psi, has integral pivot mounting 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 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 5 to 10 psi, has extended shaft mounting 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 3 Pneumatic Damper Actuator is a rugged, metal-fabricated device that provides gradual or positive actuation of HVAC dampers. This actuator has a nominal spring range of 5 to 10 psi, is front 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 ball joint connector is a rugged, metal-fabricated device that provides gradual or positive actuation of HVAC dampers. This actuator has a nominal spring range of 3 to 7 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 clevis is a rugged, metal-fabricated device that provides gradual or positive actuation of HVAC dampers. This actuator has a nominal spring range of 3 to 7 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 is a rugged, metal-fabricated device that provides gradual or positive actuation of HVAC dampers. This actuator has a nominal spring range of 3 to 7 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 is a rugged, metal-fabricated device that provides gradual or positive actuation of HVAC dampers. This actuator has a nominal spring range of 3 to 7 psi, has integral pivot mounting 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 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 3 to 7 psi, has extended shaft mounting 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 3 Pneumatic Damper Actuator is a rugged, metal-fabricated device that provides gradual or positive actuation of HVAC dampers. This actuator has a nominal spring range of 3 to 7 psi, is front 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 6 Pneumatic Damper Actuator for tandem mounting is piloted by a positioning relay which is mounted on a sturdy angle iron frame. This damper actuator has a spring range of 8 to 13 psig, an adjustable spring span and start point and a 1/8" NPT female air connection. This damper actuator is recommended to position inlet vanes on fans or large dampers that use a jack shaft.
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 actuator has nominal spring range of 8 to 13 psi, is pivot mounted and has a replaceable diaphragm. This actuator has a 1/8" NPT female air connection.
This 331 Number 4 Pneumatic Damper Actuator with a ball joint connector 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 3 to 13 psi, a fixed mounting plate and a replaceable diaphragm. This actuator has an air connection of 1/8" NPT female with a dual barb elbow fitting for 1/4" OD tubing.
This 331 Number 4 Pneumatic Damper Actuator with a ball joint connector 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 fixed mounting plate and a replaceable diaphragm. This actuator has an air connection of 1/8" NPT female with a dual barb elbow fitting for 1/4" OD tubing.
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 3 to 13 psi, is mounted on a plate which allows extended shaft mounting and has a replaceable diaphragm. This actuator has a 1/8" NPT female air connection and parts for frame mounting.
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 3 to 8 psi, is mounted on a plate which allows extended shaft mounting and has a replaceable diaphragm. This actuator has a 1/8" NPT female air connection and parts for frame mounting.
This 331 Number 6 Pneumatic Damper Actuator with integral pivot and pivot post is a rugged, metal-fabricated device that is UL recognized for use on fire dampers and leakage-rated dampers. This actuator has a nominal spring range of 3 to 13 psi, is mounted on a plate which allows extended shaft mounting and has a replaceable diaphragm. This actuator has a 1/8" NPT female air connection and parts for frame mounting.
This 331 Number 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 hesitation model actuator has a nominal spring range of 2 to 3 and 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 f
This 331 Number 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 5 to 10 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
This 331 Number 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 3 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
This 331 Number 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 3 to 7 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
This 331 Number 4 Pneumatic Damper Actuator 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.
This 331 Number 4 Pneumatic Damper Actuator has a 2 3/8" stroke for unit ventilators and is a rugged, metal-fabricated device that provides gradual or positive actuation of HVAC and fire/smoke dampers. This hesitation model actuator has a nominal spring range of 2 to 3 and 8 to 13 psi, is fixed bracket mounted and provides minimum ventilation without separate damper/actuator. This actuator has an air connection of 1/8" NPT female with a dual ba
This 331 Number 4 Pneumatic Damper Actuator with integral pivot and pivot post is UL recognized for fire and smoke applications and 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 mo
This 331 Number 4 Pneumatic Damper Actuator has a clevis and clevis pin for use with frame mounting accessory and 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, integral pivot mounting and a replaceable diaphragm. This actuator has an air connection of 1/8" NPT female with a dual barb elbow fitting for 1/4" OD tubing.
This 331 Number 4 Pneumatic Damper Actuator with non-pivot mounting screws is a rugged, metal-fabricated device that provides gradual or positive actuation of HVAC and fire/smoke dampers. This actuator is front mounted and has a replaceable diaphragm.
This 331 Number 4 Pneumatic Damper Actuator with non-pivot mounting screws 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, is front mounted and has a replaceable diaphragm. This actuator has an air connection of 1/8" NPT female with a dual barb elbow fitting for 1/4" OD tubing.
331 No. 4 Pneumatic Damper Actuator, UL recognized for fire and smoke applications; rugged, metal-fabricated device provides gradual or positive actuation of HVAC and fire/smoke dampers. 8 to 13 psi, integral pivot mounting, replaceable diaphragm; Air connection of 1/8" NPT female, dual barb elbow fitting for 1/4" OD tubing.
This 331 Number 4 Pneumatic Damper Actuator has a clevis and clevis pin for use with frame mounting accessory and 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 5 to 10 psi, integral pivot mounting and a replaceable diaphragm. This actuator has an air connection of 1/8" NPT female with a dual barb elbow fitting for 1/4" OD tubing.
This 331 Number Pneumatic Damper Actuator has a clevis and clevis pin for use with frame mounting accessory and 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 3 to 13 psi, integral pivot mounting and a replaceable diaphragm. This actuator has an air connection of 1/8" NPT female with a dual barb elbow fitting for 1/4" OD tubing.
