Model G Thermostatic Control Valves

AMOT G valves are 3-way control valves consisting of a heavy duty rotary valve and either a quarter turn electric or pneumatic actuator. The valves provide a hi degree of accuracy and repeatability for accurate temperature control and are equally accurate in mixing or diverting service over a wide flow range.

AMOT 3 Way Thermostatic Valves

Mechanical 3-Way Temperature Control Valves

AMOT Thermostatic 3-Way Control Valves provide automatic temperature regulation for engine cooling, lubricating oil, and industrial process systems—without the need for external power or electronics. These self-contained valves accurately control oils, glycols, water, and a wide range of other fluids. Using an internal wax-element thermostat to sense temperature, the valve modulates and redirects flow to protect rotating equipment, maintain stable operating temperatures, and ensure reliable performance in demanding industrial environments.

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The AMOT Model G is a high-performance 3-way temperature control valve that uses external electric or pneumatic actuation to deliver precise, repeatable temperature control—exceeding the accuracy of traditional thermostatic wax valves in both mixing and diverting applications. It is widely applied in engine cooling, lubrication systems, heat exchangers, and industrial process control, and is available with electric, pneumatic, or electro-pneumatic actuation options.

Featuring a compact, heavy-duty rotary design, the Model G minimizes pressure drop, fits into confined installations, and reliably withstands vibration, including direct mounting to engines or rotating equipment.

The valve is compatible with water, glycol, seawater, synthetic and petroleum-based oils, and many other process fluids, and can be configured in a broad range of sizes, materials, port orientations, and control signal types to meet specific application requirements.

Key Features:

• Precision control to within ±1°F with external temperature sensing
• Multiple actuation types with fail-safe and high-vibration options
• Available in sizes ½” to 16″ (DN15–DN400)
• Body materials: ductile iron, bronze, carbon steel, stainless steel
• Seal options for high-temp, low-temp, oil, and water service
• Leakage classes: ANSI Class II (0.5%) or Class IV (0.01%)
• Flange types: ANSI, PN, JIS
• Max pressure: up to 16 bar; max flow: 3,170 GPM

Certified For:

• Hazardous areas: ATEX, CSA, IECEx
• Marine use: ABS, Lloyd’s, DNV, Bureau Veritas
• IACS classes: CCS, KR, RINA, and more

Over 25 years of proven performance in power generation, marine, chemical, and oil & gas systems.