129S43 Magnatrol Solenoid Valve

The Magnatrol 129S43 SOLENOID Valve 3/4″ 120V 0/180# STEAM

Overview

The Magnatrol 129S43 is a Type “S” Normally Closed (N/C), full-port solenoid valve constructed of bronze. It is an internal pilot-operated valve that is designed to control fluid flow, opening when the coil is energized and closing when de-energized. A key design characteristic is its ability to operate from zero to its maximum differential pressure, requiring no minimum pressure to open. The valve is primarily intended for steam applications. This product has been discontinued by the manufacturer.

Features

• Operation: Normally Closed (N/C), opening upon coil energization (Energize to Open).
• Construction: Cast Bronze body with a Full Port, 2-Way straight-thru design.
• Pressure Operation: No differential pressure is required for the valve to open.
• Design: Internal pilot-operated.
• Coil: Continuous duty coils for AC and DC voltages are available.

Specifications

• Part Number: 129S43 (Replacement: G129S43SC-ACTS)
• Pipe Size: 3/4″ NPT
• Maximum Differential Pressure (Max Diff PSI): 180 PSI
• Maximum Fluid Temperature: 400° F
• Control Voltage (Standard AC): 120 VAC, 60 HZ (240V variants are also available)
• Power Rating (120V AC): 65 Watts AC (1.2 Amp hold / 3.9 Amp inrush)
• Power Rating (DC): 33 Watts DC
• Body Material: Bronze
• Approximate Weight: 11.00 – 12 lbs

Applications

The 129S43 solenoid valve is used to control the flow of steam, which must be free of sediment. It is a reliable choice for steam control in heating systems and is suitable for various industrial and home applications. Based on the Type “S” designation, it is also applicable for Hot Liquids and Hot Gases.

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