Spirax Sarco 70879 Pilot Kit

The Spirax Sarco 70879 is a professional-grade P Pilot Kit designed specifically for the 25 Series Main Valve. This kit is essential for technicians performing a pressure pilot rebuild on self-actuated steam regulators, ensuring the system maintains precise downstream pressure control within +/- 1 PSIG. Built with a rugged cast iron body and engineered to handle high-demand industrial environments, this pilot assembly manages steam flow by sensing pressure changes and modulating the main valve diaphragm effectively. High-performance steam regulator parts like the 70879 are critical for preventing hunting and ensuring consistent 25P series repair outcomes.

Whether you are dealing with an L4, M4, N4, S4, T4, or W configuration, this pilot valve assembly provides the necessary components to restore factory-spec regulation. It is rated for a maximum pressure of 250 psi WSP and temperatures reaching 250°F, making it a staple for commercial and industrial steam heating systems. By utilizing genuine Spirax Sarco 70879 components, contractors can ensure long-term reliability and accurate set-point maintenance in any pilot-operated pressure reducing station.

• Precise Pressure Management: Restores the ability to regulate steam pressure accurately within +/- 1 PSIG, preventing equipment damage downstream.
• Direct Modular Replacement: Specifically tailored for 25 Series Main Valves, allowing for a streamlined valve repair kit installation without heavy modification.
• Industrial Durability: Features a heavy-duty cast iron construction capable of sustaining 250 psi working steam pressure.
• Universal 25 Series Compatibility: Fits various sub-models including L4, M4, N4, S4, T4, and W, providing a versatile solution for diverse mechanical rooms.

Is the 70879 kit compatible with all 25 Series Pilots?
This kit is primarily designed for the 25P Pressure Pilot configurations. It contains the internal components necessary to rebuild the pilot module that mounts to the 25 Series Main Valve.

Can I use this kit for a total main valve overhaul?
No, this is a pilot kit. While the pilot controls the main valve, a separate main valve rebuild kit is required if the larger diaphragm or seat in the main body requires service.

What is the maximum temperature rating for this assembly?
This pilot kit is engineered to operate reliably in steam applications up to 250°F.

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.