Description
The Loren Cook 100173 is a heavy-duty 6-inch two-way butterfly valve assembly engineered for reliable on/off flow control in demanding commercial and industrial HVAC and hydronic piping systems. Paired with the D-3000 Series actuator in a spring-open fail-safe configuration, this assembly delivers dependable performance and automatic return to the open position upon loss of power or control signal.
Key Features
- 6-inch two-way butterfly valve for precise flow shutoff and control
- High flow capacity: 1025 Cv at 70 degrees for low-pressure-drop performance
- 175 PSIG closeoff pressure rating for robust system compatibility
- Rated for 75 PSIG dead-end service for added installation flexibility
- D-3000 Series actuator provides reliable on/off control operation
- Spring-open fail-safe design ensures valve returns to open position on power loss
- Two-way design suitable for a wide range of piping configurations
Specifications
- SKU: 100173
- Brand: Loren Cook
- Valve Size: 6 inches
- Valve Type: Two-Way Butterfly
- Flow Coefficient (Cv): 1025 at 70 degrees
- Closeoff Pressure: 175 PSIG
- Dead-End Service Rating: 75 PSIG
- Actuator Series: D-3000
- Control Type: On/Off
- Fail-Safe Mode: Spring Open
Applications
- Commercial and industrial HVAC piping systems
- Hydronic heating and cooling distribution
- Building automation and mechanical room flow control
- Systems requiring fail-safe open valve positioning







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