VGG10.804U Siemens Gas Valve

Overview

The Siemens VGG10.804U is a high-performance, single-body gas valve designed for use in commercial and industrial burner applications. This 3-inch NPT threaded valve is typically paired with Siemens SKP series electro-hydraulic actuators to provide essential functions such as safety shut-off, gas pressure regulation, and air-gas ratio control. Constructed from durable cast iron, it is engineered to withstand demanding environments while ensuring precise control over gas flow and maximizing combustion efficiency.

Features

• Normally closed, two-port valve design for reliable safety shut-off
• Integrated stainless steel mesh filter protects the valve seat and downstream components from contamination
• Dual stem guides ensure precise disc alignment and a tight seal
• Contoured valve disc provides smooth gas release and stable regulating control
• Actuator can be mounted or replaced while the valve is installed and under pressure
• Equipped with 1/4-inch NPT pressure taps on both inlet and outlet for easy monitoring

Specifications

• Model: VGG10.804U
• Connection Size: 3-inch NPT threaded
• Body Material: Cast iron
• Maximum Operating Pressure: 10 psi (600 mbar)
• Close-off Pressure: 25 psi
• Capacity: 6,158 CFH (Natural gas at 1-inch W.C. pressure drop)
• Permissible Gas Temperature: 5 F to 140 F (-15 C to 60 C)
• Approvals: UL listed, FM approved, CSA certified, and ISO 9001/14000 certified
• Weight: Approximately 35 lbs

Applications

• Used primarily in gas-fired combustion plants and forced draft burners
• Suitable for use with natural gas, propane, butane, air, and other non-corrosive gases
• Functions as a safety shut-off valve when combined with SKP15 series actuators
• Provides pressure regulation with safety shut-off when used with SKP25, SKP55, or SKP75 actuators
• Ideal for gas trains in large-scale HVAC systems, industrial boilers, and furnace applications