Watts 0590716 FV-4 Series, Male NPT Connections, 150 PSI Max, Automatic Air Vent Valve

This 1/4 inch automatic air vent valve is used in commercial and residential hydronic heating applications to provide automatic air venting for hot or cold water distribution systems. It consists of a brass body construction with female NPT connection, brass cover, air vent with silicone rubber seal, polyethylene float with valve plug, and automatic vent. It has a high temperature rating and is ideal for use with glycol systems or for use as an anti-vacuum device. It can also be installed to permit the separation and dispersal of air while fluid is circulating in the system. It can be disassembled for inspection and cleaning. The maximum pressure is 150 psi (10 bar).

Features:
Brass construction
Air vent with silicon rubber seal
Float is high temperature resistant polyethylene
Suitable for use with glycol systems

Specifications:

Manufacturer: Watts
Manufacturer Part Number: 0590716
Product Type: Air Vent Valve
Air Venting: Automatic
Body Material: Brass
Body Pattern: Vertical
Bottom Tapping: Yes
Bottom Tapping Size: 1/4"
Fastfill Feature: No
Hydronic Item Type: Air Vent
Inlet Connection Size: 1/4"
Inlet Connection Type: Male Threaded
Inlet Thread Type: NPT
Maximum Operating Temperature: 240 Degree Fahrenheit
Maximum Pressure: 150 PSI
Maximum Steam Pressure: 9999 PSI
Maximum Temperature: 240 Degree Fahrenheit
Maximum Water Pressure: 150 PSI
Maximum Working Pressure: 150 PSI
Minimum Pressure: 1.45 PSI
Minimum Water Pressure: 1.45 PSI
Minimum Working Pressure: 1.45 PSI
Series: FV-4
Temperature Range: 33 to 240 Degree Fahrenheit
Top Tapping: No
Vacuum Breaker: Yes
Venting Capacity: 0.5 SCFM at 25 PSI
Dimensions: 3.5" x 2.05" x 2.1"
Weight: 0.31 lb

Tech Sheet