Description
The Spence Engineering 05-01673-00 is a genuine OEM replacement diaphragm designed specifically for use with the Spence 3″ E2 series pressure reducing valve. Keeping this critical internal component in top condition ensures your steam or fluid pressure control system continues to operate with accuracy and reliability.
Product Overview
The diaphragm is a key functional element within the E2 valve assembly, responding to downstream pressure changes to modulate flow and maintain a consistent set-point pressure. Over time, diaphragms can wear, crack, or lose elasticity — leading to pressure instability, valve chatter, or complete valve failure. Replacing the diaphragm with a genuine Spence Engineering part restores factory performance and extends the service life of your existing valve body.
Key Features
- Genuine OEM Spence Engineering replacement part
- Designed for the 3″ E2 series pressure reducing valve
- Ensures accurate downstream pressure regulation
- Restores proper valve response and sealing performance
- Direct drop-in replacement — no modification required
- Supports reliable steam and fluid system operation
Applications
- Steam pressure reducing and regulating systems
- Hydronic and process fluid control applications
- Commercial and industrial HVAC systems
- Boiler room and steam distribution networks
Why Choose Genuine OEM Parts?
Using authentic Spence Engineering replacement components guarantees compatibility with your existing E2 valve assembly. Aftermarket substitutes may not meet the original material or dimensional specifications, potentially compromising system performance and safety. The 05-01673-00 diaphragm is engineered to Spence’s exacting standards for long-lasting, dependable service.







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