Description
The KMC Controls HPO-0038 is a genuine OEM replacement diaphragm designed specifically for the MCP-3631 pneumatic controller. As a critical internal sealing component, the diaphragm is responsible for maintaining accurate pressure response and reliable actuation within the pneumatic control assembly. Replacing a worn or damaged diaphragm with an authentic KMC Controls part ensures your system returns to factory-specified performance quickly and cost-effectively.
Why Replace with a Genuine KMC Controls Diaphragm?
Using an OEM replacement part eliminates the guesswork associated with aftermarket alternatives. The HPO-0038 is engineered to exact tolerances for the MCP-3631, ensuring a precise fit, proper seal integrity, and consistent pneumatic response — critical factors in building automation and HVAC control applications.
Key Features
- Genuine OEM KMC Controls replacement diaphragm
- Designed specifically for the MCP-3631 pneumatic controller
- Restores proper sealing and pressure response
- Precision-engineered for exact fit and reliable performance
- Extends service life of existing MCP-3631 controllers
- Cost-effective alternative to full controller replacement
Compatible Equipment
- KMC Controls MCP-3631 Pneumatic Controller
Applications
- Commercial HVAC pneumatic control systems
- Building automation and controls maintenance
- Pneumatic actuator and controller servicing







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