Watts 3 S115,150 Pressure Reducing Valve, Ductile Iron, Flanged

The Watts 3 S115,150 is a 3" globe-pattern pilot-operated pressure reducing control valve with Flanged connections. It features a ductile iron body. Rated to 250 psi.

The 3 inch S115 150 ACV pressure reducing control valve is designed to automatically reduce a fluctuating higher upstream pressure to a constant lower downstream pressure regardless of varying flow rates. The pressure reducing control pilot is normally open, held open by an adjustable spring setting to maintain a constant outlet pressure to the main valve. SentryPlus Alert® technology provides intelligent pressure monitoring and notifications using integrated sensors, and integrates with the Sensor Control Monitor to deliver maintenance alerts through BAS via RS-485 Modbus or the Nexa® platform over Wi-Fi.

Features

• Class 150 flanged
• 250 psig rated
• Maintains a constant pressure regardless of flow rate
• Integrates with the Sensor Control Monitor to deliver maintenance alerts to BAS via RS-485 Modbus or the Nexa platform by Wi-Fi connectivity
• 20-200 psig

Common Questions

What is the maximum working pressure?

This unit is built as 150# Flanged and is rated to 250 psi. End connection sets the ceiling on this platform, and 150# and 300# bodies are not interchangeable — confirm the class matches your flange drilling before ordering.

Specifications

• Type: Pressure Regulator
• Size: 3"
• Inlet Size: 3"
• Outlet Size: 3"
• Connection: Flanged
• Body Material: Ductile Iron
• Pressure Class: Class 150
• Max Pressure (psi): 250
• Operation: Pilot-Operated Diaphragm
• Country of Origin: United States
• Warranty: 1 Year Limited
• MPN: 3 S115,150
• Lead-Free: No
• Item Type: Valve
• Control Function: Pressure Reducing
• Valve Platform: SentryPlus Alert (S-Series)
• Body Pattern: Globe
• End Connection / Pressure Class: 150# Flanged
• Coating: Fusion-Bonded Epoxy
• SentryPlus Alert Ready: Yes