SCHNEIDER Pneumatic Valve Actuator: MK-6621 Mfr Part #
SKU 3G-OTH-78156
Need installation or engineering help?
Ask a question
Frequently Asked Questions
What is the SCHNEIDER MK-6621 pneumatic valve actuator used for?
The SCHNEIDER MK-6621 pneumatic valve actuator is used in HVACR systems to automate valve positioning for flow control of air, water, or steam. It is commonly applied in building automation, industrial process control, and replacement of existing pneumatic actuators in commercial facilities.
What are the specifications of the SCHNEIDER MK-6621 pneumatic valve actuator?
The SCHNEIDER MK-6621 is a pneumatic valve actuator with manufacturer part number MK-6621. It is designed for HVACR applications requiring reliable pneumatic actuation. For detailed technical data such as stroke, torque, or pressure range, consult the product datasheet or contact 3G Electric.
Where to buy the SCHNEIDER MK-6621 pneumatic valve actuator worldwide?
You can source the SCHNEIDER MK-6621 pneumatic valve actuator through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this replacement HVACR component.
How to install the SCHNEIDER MK-6621 pneumatic valve actuator?
Install the SCHNEIDER MK-6621 by mounting it onto the valve stem per the manufacturer's instructions, ensuring proper alignment and air supply connection. Use appropriate fittings and verify pressure range. For best practice, consult the OEM installation manual and test for leak-free operation before commissioning.
Used in
Common applications for SCHNEIDERSCHNEIDER Products
3G Electric supplies SCHNEIDER replacement hvacr pumps, valves & tubing. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.














