Product Short Description
Product Name: SAUTER AVM234SF132 – Actuator for 2-Way Valve, DN15–DN50, 10 Nm, 24 V AC/DC, 3-Point, Spring Return
Product Overview:
The SAUTER AVM234SF132 is a motorized actuator for 2-way control valves (globe/seat valves). Used in HVAC systems for precise flow regulation. Spring-return (fail-safe) operation.
Description
Technical Specifications:
| Parameter | Value |
|---|---|
| Valve Type | 2-way globe valve (DN15–DN50) |
| Torque | 10 Nm |
| Stroke Time | 150 seconds (90° rotation) |
| Control Signal | 0–10 V DC / 2–10 V DC / 4–20 mA |
| Coil Voltage | 24 V AC/DC |
| Power Consumption | 3.5 VA (running) / 5 VA (peak) |
| Fail-Safe | Spring return (NC or NO selectable) |
| Degree of Protection | IP54 (with cover) |
| Operating Temperature | -15°C to +55°C |
| Ambient Humidity | 5% to 95% RH (non-condensing) |
| Standards | EN 60730, EN 60335 |
Functional Features:
- 3-point control (floating, open, close)
- Manual override via hex key
- Position feedback: 0–10 V DC (proportional)
- LED status indicator (3 colors: running, end stop, fault)
- Adjustable end stops for partial stroke
Material Composition:
- Housing: Aluminum die-cast, powder-coated (RAL 9010 white)
- Gear train: Steel + bronze worm gear
- Spring: Stainless steel (AISI 302)
- Shaft: Stainless steel (AISI 420)
- Seals: EPDM rubber
Structural Features:
- Compact design, direct valve mounting (ISO 5211 top flange)
- Visual position indicator (0–90° scale)
- Cable gland entry: M20 × 1.5
- Dimensions: approx. 140 × 80 × 115 mm (varies by valve size)
Working Principle:
Control signal (0–10 V or 4–20 mA) drives internal motor → worm gear reduces speed, increases torque → valve stem rotates → position potentiometer sends feedback signal to BMS/controller. On power loss, spring returns valve to fail-safe position.
Advantages:
- Spring return ensures fail-safe operation (valve closes/opens on power failure)
- 3-point control for precise positioning
- IP54 protection for outdoor/mechanical room use
Applicable Industries:
- Commercial HVAC (chillers, AHUs)
- District heating/cooling
- Building management systems (BMS)
- Industrial process heating
Installation Requirements:
- Mount actuator on valve per ISO 5211 (F05–F14 flange)
- Cable gland: M20, max cable Ø 8 mm
- Align actuator shaft with valve stem (max 2° misalignment)
- Torque mounting bolts: 25 N·m
Usage Notes:
- Set fail-safe direction (NC or NO) via internal switch before commissioning
- Do not exceed 10 Nm torque (will damage valve)
- Verify control signal range matches BMS output (0–10 V vs 2–10 V)
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