Overview
The Johnson Controls T-4002-625 is a specialized pipehead gasket and holding screw kit designed specifically for the T-4000 Series pneumatic thermostats. This essential maintenance component provides a secure, airtight seal for pipehead connections, ensuring reliable performance and preventing air leaks within pneumatic control systems. It is an authentic replacement part used when installing or servicing two-pipe and three-pipe pneumatic instruments.
Features
- Specifically engineered for compatibility with Johnson Controls T-4000 Series pneumatic thermostats
- Includes both the pipehead gasket and the required holding screw for a complete assembly
- Designed to create a leak-proof seal for pipe-to-pipe joints and thermostat mounting interfaces
- Durable construction suitable for the temperature and pressure demands of commercial HVAC environments
- Simplifies routine maintenance and ensures proper alignment of pneumatic components
Specifications
- Brand: Johnson Controls
- Model: T-4002-625
- Type: Pipehead Gasket and Screw
- Style: Pneumatic
- Compatibility: T-4000 Series two-pipe and three-pipe instruments
- Country of Origin: Mexico
Applications
- Maintenance and repair of commercial and industrial HVAC pneumatic control systems
- Sealing pipehead connections for T-4002 and related pneumatic room thermostats
- Used in schools, hospitals, and office buildings where pneumatic temperature control is utilized
- Retrofitting or servicing legacy pneumatic thermostat installations to ensure airtight system performance


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