VGG10.404P Siemens Gas Valve

Overview

The Siemens VGG10.404P is a high-quality, single-body gas valve designed for use in gas-fired combustion systems and gas trains. This 1.5-inch valve is constructed from durable die-cast aluminium and features a normally closed, 2-port design. It is engineered to function as either a safety shut-off valve or a control valve when paired with compatible Siemens SKP series electro-hydraulic actuators. The “P” suffix indicates the inclusion of a contoured or profiled seat, which provides superior control performance and reduces the likelihood of hunting during low-fire burner operations.

Features

• Profiled seat design ensures precise control and stable operation at low flow rates
• Integrated stainless steel strainer protects the valve seat and downstream components from debris
• Durable die-cast aluminium housing designed for industrial and commercial environments
• Normally closed operation for enhanced safety, opening only when the actuator is energized
• Built-in test points (4x Rp 1/4″) for easy pressure monitoring and system diagnostics
• Compatible with a wide range of Siemens SKP series actuators for flexible system integration

Specifications

• Model: VGG10.404P
• Connection Size: 1.5 inch (DN40)
• Thread Type: BSP (Internally threaded to ISO 7/1)
• Maximum Operating Pressure: 600 mbar (60 kPa)
• Flow Capacity: 32.3 to 35 m3/h (at delta p = 1 mbar)
• Valve Class: Class A, Group 2 (according to EN 161)
• Medium: Suitable for gas families I, II, and III (natural gas, propane, butane, etc.)
• Approvals: CE approved

Applications

• Industrial and commercial gas-fired combustion plants
• Gas trains for forced draught gas burners
• Safety shut-off applications in combination with SKP15 actuators
• Combined shut-off and pressure regulation when used with SKP25, SKP55, or SKP75 actuators
• Control valves for air supply lines in industrial combustion systems with or without heat recovery