Overview
The Siemens VGG10.654U is a high-capacity, single-body gas valve designed for safety shut-off and control in commercial and industrial burner systems. This 2-1/2 inch NPT threaded valve is typically used in combination with Siemens SKP series electro-hydraulic actuators to provide functions such as safety shut-off, gas pressure regulation, and air/gas ratio control. Its normally closed design ensures a tight seal, while the modular architecture allows for flexible system integration and simplified maintenance in high-demand combustion environments.
Features
- Modular design allows for seamless pairing with all SKP series actuators for various control functions
- Integrated stainless steel mesh inlet filter protects the valve seat and downstream components from contamination
- Dual stem guides ensure precise disc alignment for consistent, tight shut-off
- Contoured valve disc provides a smooth release of gas and stable regulating control across its operating range
- Built-in 1/4 inch NPT pressure taps on both the inlet and outlet for easy system monitoring
- Robust cast iron body construction designed to withstand harsh industrial conditions
Specifications
- Model: VGG10.654U
- Connection Size: 2-1/2 inch NPT threaded
- Maximum Operating Pressure: 10 PSI (700 mbar)
- Close-off Pressure: 25 PSI
- Flow Capacity: Approximately 5,085 CFH (Natural Gas at 1 inch W.C. drop)
- Body Material: Cast Iron
- Temperature Range: 14 F to 140 F (-10 C to 60 C)
- Approvals: UL listed, FM approved, CSA certified, and ISO 9001/14000 certified
Applications
- Supervision and control of gas trains for large commercial and industrial burners
- Safety shut-off valve for industrial heating systems, furnaces, and boilers
- Gas pressure regulation and air-gas ratio control in forced draft burner applications
- Suitable for use with natural gas, propane, butane, air, and other non-corrosive gases
- Replacement for obsolete gas valves in existing combustion plant systems


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