Watts Combination Fill and Relief Valve: Iron, 15 psi Factory Set Pressure
The WATTS 1450F is an ASME Section IV combination pressure relief and regulator valve with an iron body. It is factory set at 15 psi and features FNPT x FNPT connections.
SKU 3G-OTH-429717
Need installation or engineering help?
Ask a question
Product Description
The WATTS 1450F is an ASME Section IV combination pressure relief and regulator valve with an iron body. It is factory set at 15 psi and features FNPT x FNPT connections.
Frequently Asked Questions
What is the WATTS 1450F combination fill and relief valve used for?
The WATTS 1450F is an ASME Section IV combination pressure relief and regulator valve used in hydronic heating systems to automatically fill the system with water and relieve excess pressure. It is commonly installed on boilers and closed-loop systems to maintain safe operating conditions.
What are the specifications of the WATTS 1450F valve?
The WATTS 1450F has an iron body, FNPT x FNPT connections, and a factory set pressure of 15 psi. It is an ASME Section IV combination pressure relief and regulator valve. The manufacturer part number is 1450F.
Where to buy the WATTS 1450F combination fill and relief valve worldwide?
3G Electric supplies the WATTS 1450F combination fill and relief valve to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this ASME Section IV valve.
How to install a WATTS 1450F combination fill and relief valve?
Install the WATTS 1450F in the boiler supply line with the inlet connected to the cold water supply and the outlet to the system. Ensure the relief valve discharge is piped to a safe drain. Follow local codes and the manufacturer's instructions for proper orientation and support.
Used in
Common applications for WattsWatts Products
3G Electric supplies Watts asme section iv combination pressure relief & regulator valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.








