Spence E-4-250 Valve 319825-402 the York S1-025-19499-001 is an

the York S1-025-19499-001 is an application-specific component

this switch is calibrated to a precise 0

this model is designed with dual fuel control accessible through the installer menu without external sensors

Electrolysis Mitigation: Utilizes AC current on the probe circuit to minimize mineral buildup and electrode degradation

Key Benefits: Universal Compatibility: Replaces numerous OEM cold controls with a break-off shaft and adaptable mounting

Spence E-4-250 Valve 319825-402 the York S1-025-19499-001 is anThe Spence E 4 250 is a heavy duty 4 inch 250# flanged E Main valve engineered for precise steam pressure regulation in large scale industrial and district heating systems. Constructed from rugged cast iron (CI), this pilot operated, normally closed valve features a single seat design and packless construction, effectively eliminating stem leakage and maintenance issues common in traditional packed valves. Designed for high performance fluid control,