Siemens Building Technology 257-02045 Valve Assembly R-134A System Safety: Provides a dedicated

System Safety: Provides a dedicated HVAC service disconnect to isolate electricity during vital equipment inspections

This unit features external pressure equalization with a 1/4 inch flare connection

This general service solenoid is engineered for high-cycle performance in applications where the valve must remain open during power loss or for extended periods without energizing the coil

It is rated for a maximum inlet pressure of 2 PSI and features a positive dead-end lock-up (PDEL) capability

Durable Construction: High-temperature ceramic base prevents electrical leakage

Siemens Building Technology 257-02045 Valve Assembly R-134A System Safety: Provides a dedicatedThe Siemens Building Technology 257 02045 is a professional grade 2 port pneumatic control valve assembly designed for high accuracy regulation of hot or chilled water in terminal units like convectors and fan coils. As part of the Powermite 599 MT Series, this 3 4" NPT x Union Male assembly features a normally open configuration and a forged brass body with durable brass trim. Engineered for a 6. 3 Cv flow capacity, it utilizes a modified equal