Spence 07-07748-00 Repair Kit

When the main valve fails to shut off tight or hunting occurs in your steam system, the Spence 07-07748-00 Repair Kit provides the technical components required for a full rebuild of a 3/4" Type E Main Valve. Designed for heavy-duty steam pressure and temperature regulation, this kit addresses common wear points in pilot-operated normally closed valves. The package includes a high-grade stainless steel diaphragm set, a precision-machined seat ring, and a matched valve disc to restore the metal-to-metal seal critical for drop-tight shutoff. You will also find the internal main spring, stem, and all necessary gaskets to ensure a leak-free assembly. As a veteran-grade HVAC repair part, this kit is specifically engineered for cast iron Spence E-Valve bodies, maintaining the tight tolerances needed for consistent delivery pressure. Utilizing these OEM-spec components during scheduled maintenance prevents downstream pressure spikes and extends the service life of your industrial steam regulator.

• Restores precision pressure regulation for 3/4" full port E-Main valves.
• Includes high-temperature stainless steel diaphragms for superior fatigue resistance.
• Complete internal rebuild components including stem, seat, disc, and spring for comprehensive service.
• Maintains metal-to-metal trim integrity to ensure reliable, packless operation in steam service.
• Reduces system downtime by replacing all critical high-wear valve maintenance parts in a single procedure.

What is included in the Spence 3/4" E-Valve repair kit?
This Spence valve rebuild kit includes the valve stem, two stem nuts, seat ring, disc, main spring, two stainless steel (SST) diaphragms, pressure plate, and necessary gaskets.

How do I know if my Spence Type E valve needs a rebuild?
If you observe steam leakage through the main valve when the pilot is closed, or if the delivery pressure becomes erratic, it often indicates a worn disc, seat, or fatigued diaphragms that require replacement.

Is this kit compatible with other Spence valve sizes?
No, the 07-07748-00 kit is specifically sized for the 3/4 inch Type E cast iron main valve. Using components on incorrect sizes will lead to seat failure and improper regulation.

This item is not eligible for free shipping.

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.