Watts 0770180 ST500 1/2″ Float Valve

Description

Watts ST500 1/2″ Float Valve — Automatic Water Level Control

The Watts 0770180 ST500 1/2″ Float Valve is a precision-engineered automatic water level control valve designed for use in hydronic heating systems, steam boilers, condensate receivers, and other fluid management applications. Built to Watts’ exacting quality standards, the ST500 float valve automatically opens and closes in response to changing water levels, ensuring consistent and reliable fluid control without the need for manual intervention.

Key Features

• Model ST500 float valve with 1/2″ connection size
• Automatic float-actuated operation for hands-free water level control
• Suitable for hydronic heating systems, steam boilers, and condensate applications
• Durable construction engineered for long-term, reliable performance
• Compact design for straightforward installation in tight mechanical spaces
• Manufactured by Watts — a trusted name in flow control and water quality solutions

Application

The ST500 float valve is ideal for maintaining proper water levels in boilers, expansion tanks, condensate receivers, and similar hydronic or steam system components. Its float-actuated mechanism responds automatically to water level fluctuations, opening to admit water when levels drop and closing when the set level is reached — helping to protect equipment and maintain system efficiency.

Why Choose Watts?

Watts is a globally recognized leader in products and solutions for the control, conservation, and quality of water. The ST500 series reflects Watts’ commitment to precision engineering, durability, and ease of installation — making it a go-to choice for HVAC professionals and mechanical contractors.

Product Details

• SKU: 0770180
• Model: ST500
• Connection Size: 1/2″
• Type: Float Valve
• Brand: Watts