Description
The Parker Refrigeration Specialties 70777 is a 1-inch GP1057 series normally closed (NC) solenoid valve engineered for demanding steam and hot water system applications. Rated for operating pressures from 1 to 50 PSI, this valve is built to deliver dependable, automatic shut-off performance in commercial and industrial HVAC and hydronic heating systems.
As a normally closed valve, it remains shut when de-energized, providing a fail-safe design that prevents unintended flow in the event of a power interruption — a critical safety feature for steam and high-temperature hot water distribution systems.
Key Features
- 1-inch valve body for high-flow steam and hot water applications
- GP1057 series construction designed for steam and hot water service
- Operating pressure range: 1–50 PSI
- Normally Closed (NC) operation — fail-safe shut-off when de-energized
- Suitable for commercial and industrial HVAC hydronic heating systems
- Parker Refrigeration Specialties quality and reliability
Application
The Parker 70777 is ideal for use in steam distribution, hot water heating loops, and process control systems where automatic, reliable flow control is required. Its normally closed design makes it well-suited for safety-critical installations where uncontrolled flow must be prevented during power loss.
Specifications
- SKU: 70777
- Series: GP1057
- Connection Size: 1 inch
- Pressure Rating: 1–50 PSI
- Media: Steam, Hot Water
- Operation: Normally Closed (NC)
- Brand: Parker Refrigeration Specialties
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