VGG10.804P Siemens Gas Valve

Overview

The Siemens VGG10.804P is a high-capacity, single-body gas valve designed for commercial and industrial burner applications. This 3-inch internally threaded valve is a normally closed, two-port safety shut-off device that operates in conjunction with Siemens SKP series electro-hydraulic actuators. It is engineered to handle a variety of gases and features a contoured disc design that ensures stable regulating control and smooth gas release. Built with a durable cast iron body, it provides a reliable and tight shut-off, making it a critical component in gas trains for forced draft burners and other gas-fired combustion plants.

Features

• High-precision contoured valve disc for stable regulating performance and smooth flow control
• Integrated stainless steel mesh inlet filter to protect the valve seat and downstream components from contaminants
• Dual stem guides to ensure precise disc alignment and reliable, tight_shut-off
• Compatible with all SKP series actuators for functions including safety shut-off, pressure regulation, and air-gas ratio control
• Normally closed operation, opening slowly and closing rapidly when used with electro-hydraulic actuators
• CE approved and suitable for use with gas families I, II, and III

Specifications

• Model: VGG10.804P
• Connection Size: 3 inch (80 DN) internally threaded BSP
• Maximum Operating Pressure: 600 mbar
• Flow Rate: 85.4 m3/h (at delta p = 1 mbar)
• Body Material: Cast iron
• Test Points: Two Rp 1/4 inch test points and two G 3/4 inch pilot gas connections
• Operating Temperature: -10 C to +60 C (14 F to 140 F)
• Protection Rating: IP54 (upgradable to IP65 with AGA66 sealing gasket)

Applications

• Industrial and commercial gas-fired combustion plants
• Gas trains for forced draft burners
• Safety shut-off and control systems in HVAC and boiler environments
• Supply air lines for industrial combustion plants with or without heat recovery systems
• Integration into gas trains requiring safety shut-off or constant pressure regulation when paired with appropriate SKP actuators