Johnson Controls MP8000-6001 Seal Kit

The Johnson Controls MP8000-6001 Seal Kit is the essential service component for maintaining the integrity of all MP800 Series pneumatic actuators. As any veteran technician knows, a failing stem seal leads to air bypass and inconsistent positioning, which can compromise the entire control loop. This OEM kit includes a high-grade nitrile U-cup stem seal and a protective plastic installation sleeve, specifically engineered to restore the airtight seal between the actuator stem and the diaphragm housing. Designed for heavy-duty HVAC valve actuators used in steam and chilled water systems, this kit ensures your Johnson Controls pneumatic actuator maintains a constant effective area and accurate stroke response. Replacing worn pneumatic seals prevents premature diaphragm failure and ensures the unit operates within its original 15 to 25 psig control pressure specifications. Standardizing on MP8000-6001 across your MP82, MP83, MP84, and MP85 inventory simplifies truck stock and field repairs.

• Universal MP800 Compatibility: Specifically designed to service the complete range of MP8000-series actuators, reducing the need for multiple SKUs.
• Optimized Materials: Features a durable nitrile U-cup seal that withstands ambient operating temperatures from -20 to 150?F.
• Leak Prevention: Restores the tight actuator stem seal, preventing air loss and improving valve positioning accuracy.
• Easy Installation: Includes a dedicated plastic sleeve to protect the new seal from being scored by stem flats during field replacement.

• Does this kit work for both MP82 and MP87 models? Yes, the MP8000-6001 is a universal seal kit compatible with all actuators in the MP8000 series. Please note that for larger actuators like the MP86/MP87, you may require additional diaphragm repair kits (MP8000-6350).
• What tools are required for the seal replacement? We recommend using the MP8000-6012 repair tool kit, which includes the necessary strap wrench and stem wrench to safely disassemble the housing without damaging the internal components.
• When should I replace the seal versus the entire actuator? If you observe air leaking from the stem or erratic valve movement despite a healthy supply signal, a seal replacement frequently restores full performance. However, if the housing is heavily corroded, a full unit replacement may be necessary.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.