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.
This 331 Number 6 Pneumatic Damper Actuator with positioning relay is a rugged, metal-fabricated device that provides gradual or positive actuation of HVAC and fire/smoke 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 Hitch Pin is used to lock Clevis Pin 331 293 in place and can be used with Number 3 and 4 pneumatic damper actuators. See Item D in product photo.
This Damper Shaft Crank has an adjustable radius of 3/4 to 4-5/8" for 3/8" diameter damper shafts. This crank is used with No. 3 and 4 pneumatic damper actuators.
This Adapter is for 3/8" diameter damper shafts and can be used with Damper Shaft Extension 333 042 and with No. 3, 4 and 6 pneumatic damper actuators.
This 1/2-inch diameter shaft extension facilitates the mounting of extended shaft damper motor assemblies to heating and ventilating or air conditioning units with short, extended damper shafts. This extension can be used on #3, #4 and #6 damper actuators.
This Universal Mounting Plate may require frame mounting lug, pivot post, clevis, crank and miscellaneous mounting hardware. This plate is for use with No. 4 and 6 pneumatic damper actuators.
This Remote Mounting Kit is for use with actuator/clevis assembly and allows connection to damper shaft when damper shaft and actuator pivot post are mounted on different planes. The field fabricated 3/8" diameter push rod is not included. This kit is for use with No. 4 and 6 pneumatic damper actuators.
This 331 Number 3 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 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 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 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 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 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 8 to 13 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 8 to 13 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 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.
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 5 to 10 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 5 to 10 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 5 to 10 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.
