Spence 05-01674-00 Diaphragm

The Spence 05-01674-00 is an industrial-grade replacement diaphragm specifically engineered for the 4-inch Spence E2 main valve. This heavy-duty component is fabricated from Hycar (nitrile), a high-performance synthetic rubber prized for its exceptional resistance to swelling and degradation in oil-rich and chemical-laden environments. Maintaining the integrity of your pilot-operated pressure regulator is critical for precise steam or liquid control; a fatigued or ruptured diaphragm can lead to erratic pressure fluctuations or total valve failure. With a diameter of 13.5 inches, this Hycar diaphragm is designed to handle sensitive low-pressure operations while maintaining the frictionless movement necessary for the E2 series' packless construction. Field technicians understand that using OEM Spence parts ensures proper stem length calibration and seating, preventing common issues like hunting or weeping. This 4-inch valve diaphragm is rated for temperatures up to 250°F, providing a reliable seal and responsive actuation for your steam pressure regulating valve. Always inspect the diaphragm during routine in-line maintenance to ensure the continued performance of your heating and process systems.

• Chemical Resistance: Constructed from Hycar, providing superior durability against oils, gas, and corrosive substances compared to standard elastomers.
• Exact Compatibility: Precision-molded for a 100% accurate fit on 4-inch Spence E2 main valves, ensuring no loss of actuation force.
• High-Temperature Rating: Robust material composition supports consistent performance in steam and hot water applications up to 250°F.
• Reliable Pressure Control: Facilitates the frictionless operation required for sensitive pilot-operated systems, reducing mechanical wear on the stem.

Is this diaphragm compatible with the Spence E series?
This specific part number, 05-01674-00, is designed for the E2 series. While they share similarities, always verify the valve body marking to ensure correct diaphragm selection for the 4-inch port size.

What is the service life of a Hycar diaphragm in steam applications?
Service life depends on steam quality and cycling frequency. Technicians should inspect for hardening or cracking during annual teardowns to prevent unexpected downtime.

Can I use this diaphragm for high-pressure steam?
The Spence E2 valve and this Hycar diaphragm are typically utilized in lower pressure or temperature-sensitive applications. For high-pressure steam, consult the system specifications to ensure material compliance with Hycar limits.

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.