383-500-390

The Weil-McLain 383-500-390 Ultra 310 Gas Valve Venturi is a crucial component for gas-fired hydronic heating systems, specifically those using Weil-McLain boilers. This valve venturi is designed to provide precise control of gas flow to the burner, ensuring optimal performance and efficiency.

The Ultra 310 Gas Valve Venturi is engineered using high-quality materials, ensuring durability and reliability. Its body is constructed from brass, a material known for its resistance to corrosion and its ability to withstand high temperatures. The valve stem and seat are made from stainless steel, providing enhanced strength and longevity.

This venturi features an adjustable orifice, allowing users to fine-tune the gas flow rate to their specific heating requirements. The adjustment is made through the use of a locknut and an orifice plate, which can be easily accessed from the top of the venturi. The venturi also includes a built-in pilot gas pressure regulator, enabling users to regulate the pilot gas pressure and maintain a consistent flame.

The Ultra 310 Gas Valve Venturi is designed with safety in mind. It includes a thermal relief valve, which opens when the water temperature exceeds a certain threshold, preventing damage to the valve caused by overheating. Additionally, it has a manual bypass, which allows users to manually open the venturi when servicing the burner or when the valve needs to be replaced.

This venturi is compatible with Weil-McLain's Ultra Series boilers and is designed to work seamlessly with their electronic ignition systems. Its compact design allows for easy installation, while its robust construction ensures long-lasting performance.

In summary, the Weil-McLain 383-500-390 Ultra 310 Gas Valve Venturi is a reliable and effective component for controlling gas flow in hydronic heating systems. Its high-quality materials, adjustable orifice, built-in pilot gas pressure regulator, and safety features make it a top choice for those seeking optimal performance and efficiency from their heating systems.

The Weil-McLain 383-500-390 Ultra 310 Gas Valve Venturi is a popular choice for heating systems due to its durability, efficiency, and ease of installation. Here are some pros and cons to help you make an informed decision:

1. Durable construction: This gas valve venturi is made of high-quality materials, including brass and stainless steel, which ensures long-lasting performance.

2. Easy installation: The Weil-McLain 383-500-390 Ultra 310 Gas Valve Venturi is designed for easy installation. It can be installed directly into the boiler or heating system, and it comes with all necessary mounting hardware.

3. Efficient operation: This gas valve venturi is designed to provide efficient gas flow to the heating system. It has a low-mass design, which helps to reduce heat loss and improve overall system efficiency.

4. Reliable performance: The Weil-McLain 383-500-390 Ultra 310 Gas Valve Venturi is known for its reliable performance. It has a diaphragm-operated design, which helps to ensure consistent gas flow and accurate temperature control.

1. Price: The Weil-McLain 383-500-390 Ultra 310 Gas Valve Venturi is more expensive than some other gas valve venturis on the market. However, its high-quality materials and reliable performance may justify the higher price.

2. Limited compatibility: This gas valve venturi is designed for use with Weil-McLain boilers and heating systems. It may not be compatible with other brands or models of heating equipment.

The Weil-McLain 383-500-390 Ultra 310 Gas Valve Venturi is a high-quality, reliable, and efficient gas valve venturi that is worth considering for your heating system. Its durable construction, easy installation, and consistent performance make it a great investment for those who are looking for a long-lasting solution. While it may be more expensive than some other options, its reliability and efficiency may justify the higher cost.

If you are in the market for a new gas valve venturi and you are looking for a high-quality, reliable, and efficient option, the Weil-McLain 383-500-390 Ultra 310 Gas Valve Venturi is definitely worth considering. Its durability, easy installation, and consistent performance make it a great choice for those who want a long-lasting solution for their heating system. However, it is important to ensure that it is compatible with your specific heating system before making a purchase.

Details:

For Nat gas boilers, this is from a natural boiler and tuned for. Weil Mclain 383-500-390 ultra 310 gas valve. Guaranteed working properly so never a risk. Used, tested.

This works for the ultra model 310 boiler. This was replaced just before the boiler decommissioned so its like new. The LP orifice is included. Gas valve venturi.

specifications maxohvac:

• brand: Weil Mclain
• mpn: 383-500-390
• model: 383-500-390 310
• part type: Valve

offer maxohvac:

• sold #: 12
• in stock #: 5
• prices: $159.00–$754.12
• item condition:
  • New – Open box
  • New
  • Used
• best offers: true
• availability: in stock
• options: ship-to-home
• started: april 1, 2026

general maxohvac:

• category: Business & Industrial > Hvac Refrigeration

seller maxohvac:

• city: riverhead, new york
• rating: 99.8%
• # reviews: 2635

returns maxohvac:

• method: money back
• paid by: buyer
• time: 30 days
• policy: returns accepted

shipping maxohvac:

• class: standard
• carrier: usps
• service: usps ground advantage
• transit: 3-8 days
• type: fixed

payments maxohvac:

• wallet: paypal
• other
• credit card: visa

Also Viewed:

• 510-218-099: PRESSURE GAUGE, Weil Mclain
• 383-500-605: KIT, Weil Mclain
• 540-131-107: EXCHANGER GASKET, Weil Mclain
• 635-100-105: WATER HEATER, Weil Mclain
• 389-900-176: WATER SENSOR, Weil Mclain
• 511-330-258: CONTROL, Weil Mclain
• 383-500-025: VALVE, Weil Mclain
• 383-500-035: , Weil Mclain
• 381800836: KIT, Weil Mclain
• L8124A1155: , Honeywell
• L8124A1015: , Honeywell