1/2" Combination Gas Valve for CG, EG, CGA Boilers, Sizes 25-6

Weil-McLain 511-044-360 – 1/2" Combination Gas Valve for CG, EG, and CGA Series Boilers

The Weil-McLain 511-044-360 is a 1/2" combination gas valve engineered for use with natural gas systems in Weil-McLain CG, EG, and CGA residential boiler models. Designed to regulate and control gas flow to the burner assembly, this valve supports consistent ignition performance and system safety under a range of operating conditions.

This unit integrates both manual and automatic gas shutoff functions, and is equipped with a 24V control coil for compatibility with common boiler control circuits. It is constructed with threaded NPT connections for secure, standard installation.

Key Features

• OEM-Specific Fit: Direct replacement valve for Weil-McLain CG, EG, and CGA series boilers
• Manual & Automatic Shutoff: Integrated safety controls for primary burner operation
• 24V Coil Operation: Designed for use with typical boiler ignition and control systems
• Threaded Ends: 1/2" NPT inlet/outlet connections for standard gas piping
• Gas Type: Natural gas only – not approved for LP systems

Technical Specifications

• Model: 511-044-360
• Connection Size: 1/2" NPT
• Voltage: 24 VAC coil
• Gas Type: Natural gas
• Compatible Boilers: Weil-McLain CG, EG, CGA models (consult boiler manual for verification)

Installation Considerations

This valve should be installed by licensed HVAC or plumbing professionals familiar with gas train systems and boiler controls. Proper torque must be applied to avoid thread damage, and all connections should be tested for leaks per applicable codes. Ensure system is depressurized and electrically isolated before servicing.

Contractor Notes

Designed as an OEM control component, the 511-044-360 supports precise modulation and safe burner shutoff for residential cast iron boiler systems. Always confirm compatibility with the boiler model and verify gas type before installation. Refer to Weil-McLain’s installation instructions for wiring diagrams and setup procedures.