Spirax-Sarco 58131 Globe Valve Flow Switch, 1.0–6.0 GPM, SPDT, 1″ NPT, Bronze

Description

Spirax-Sarco 58131 Globe Valve Flow Switch Overview

The Spirax-Sarco 58131 is a precision-engineered globe valve flow switch designed for reliable flow detection in hydronic and process piping systems. Featuring a straight-through flow path and durable bronze body construction, this switch delivers dependable actuation across a wide range of flow conditions — making it an ideal choice for boiler protection, pump proving, and system interlock applications.

Key Features

• Actuation set point range: 1.0 – 6.0 GPM for versatile flow detection
• SPDT (Single-Pole, Double-Throw) switch type for flexible control wiring
• 1″ NPT connection for straightforward inline installation
• Straight-through flow design minimizes pressure drop across the valve body
• Bronze body construction provides excellent corrosion resistance and long service life
• Globe valve style housing for rugged, industrial-grade performance

Applications

• Hydronic heating and cooling systems
• Boiler low-water and flow protection circuits
• Pump proving and flow verification
• Process piping flow interlock and alarm systems
• HVAC chilled water and hot water distribution

Specifications

• SKU: 58131
• Brand: Spirax-Sarco
• Actuation Set Point: 1.0 – 6.0 GPM
• Switch Type: SPDT
• Connection Size: 1″ NPT
• Flow Configuration: Straight Through
• Body Material: Bronze