129S42 Magnatrol Solenoid Valve

The Magnatrol 129S42 SOLENOID Valve 1/2″ 120V 0/180# STEAM SOL

Overview

The Magnatrol 129S42 is a two-way, full port, bronze solenoid valve designed specifically to control the flow of steam. It features a Normally Closed (N/C) operation, meaning it opens when the coil is energized and closes when power is de-energized. This internal pilot-operated valve is designed to operate from zero to its maximum differential pressure, requiring no differential pressure to open, and is constructed as a dependable, packless unit.

Features

• Operation: Normally Closed (N/C), opening upon coil energization
• Port Design: Full Port, 2-Way straight-thru design
• Pressure Operation: No differential pressure is required for the valve to open
• Body Construction: Cast Bronze body with Globe Pattern and NPT ends
• Wetted Parts: Bronze piston, 430 Stainless Steel plunger, 303 Stainless Steel pilot valve, 304 Stainless Steel bonnet tube, and Inconel spring/stem pin
• Seals: Glass Filled Teflon® orifice seal and Non Asbestos Gasket body seal
• Coil: Encapsulated Class H coil with 18″” leads, designed for continuous duty with both AC and DC voltages
• Installation: Must be mounted in a horizontal pipe with the solenoid enclosure vertical and on top

Specifications

• Part Number/Type: 129S42, Type S
• Pipe Size: 1/2″” NPT
• Maximum Differential Pressure (Max Diff PSI): 180 PSI
• Maximum Static Pressure: 200 PSI
• Control Voltage (Standard AC): 120 VAC, 60 HZ (240V available)
• AC Power Rating: 65 Watts AC
• AC Amperage (120V-60): Hold Amps 1.2A; Inrush Amps 3.6A
• DC Power Rating: 33 Watts DC
• Maximum Fluid Temperature: 400° F
• Cv Factor (N/C): 3.5
• Body Material: Bronze
• Weight (Shipping/Approximate): 10-11 lbs

Applications

The primary application for the Magnatrol 129S42 solenoid valve is to control the flow of steam. It is essential that the steam be free of sediment for proper operation. It is a robust, general-purpose valve for steam control often used in industrial and HVAC process control systems.