Spence BF-4-KIT Valve

The Spence BF-4-KIT is an essential assembly of copper tubing bends and industrial-grade fittings specifically engineered for the 4-inch Spence Type E main valve. This kit is a critical component for field-servicing pilot-operated regulators, providing the necessary external connections to link the pilot to the main valve body and diaphragm chamber. Designed to maintain the precise pressure signals required for accurate steam or vapor regulation, these Spence valve parts ensure a leak-free seal and optimal fluid dynamics across the pilot circuit. By using OEM components, contractors can avoid the common pitfalls of field-fabricated piping, such as restricted loading pressure or erratic hunting caused by improper bend radii. The kit facilitates a reliable E-valve connection, supporting the normally closed, packless construction of the 4-inch valve body and ensuring that the loading pressure from the pilot correctly modulates the main valve diaphragm for consistent downstream delivery.

• Ensures accurate signal transmission between the Spence pressure pilot and the 4-inch main valve.
• Constructed from heavy-duty copper with precise threading to prevent loading pressure leaks.
• Directly compatible with 4" type E main valves used in high-demand steam heating systems.
• Simplifies pilot-to-main valve integration, reducing labor time during HVAC valve repair.
• Maintains factory-spec flow profiles in the pilot circuit to ensure stable regulator performance.

Does this kit include the 4A bleedport or 5A restriction elbow?
This kit primarily consists of the bends and fittings required for the external pilot loop connectivity. While the bleedport is vital for the loading pressure to exhaust, verifying your specific pilot configuration is recommended to ensure all orifice-based fittings are present for your installation.

Is this compatible with the Type E2 or E5 variants?
The Spence BF-4-KIT is specifically sized for the standard 4-inch Type E main valve. While the E-series shares some design principles, the tubing geometry is optimized for the dimensions of the 4-inch E-valve body to ensure proper clearance and connection alignment.

Can I use these fittings for high-temperature steam applications?
Yes, these components are designed to withstand the standard operating temperatures and pressures associated with industrial steam regulators featuring cast iron or cast steel bodies.

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.