Double acting pneumatic actuator manufacturer

EOM2~9 quarter turn valve actuator range is the most widely purchased from our quarter turn electric actuator range. One of the legacy product that is adaopted by various international brands to their actuator product line. This range is available from 100Nm to 2300Nm for valves DN50~DN500 butterfly valve or ball valve or dampers respectively.

Proview

Quarter Turn: This term describes the range of motion required to operate the valve. Quarter-turn valves, including ball and butterfly valves, need only a 90-degree rotation to move from a fully closed to a fully open position. This allows for quick and efficient operation.

Components

Body: Usually constructed from durable materials like aluminum or stainless steel to withstand high pressure and environmental challenges.

Pistons or Diaphragms: These quarter turn valve actuator components move in response to air pressure, creating the force needed to rotate the valve.

Springs (in spring-return models): These are used to return the valve to its original position when air pressure is lost, adding a fail-safe feature that can be crucial in maintaining safety in critical applications.

Functionality

On/Off Control: Most commonly used to start or stop the flow in a pipeline by fully opening or closing the valve.

Regulation: Though less common, some quarter-turn actuators can be fitted with positioners to allow for the precise control of the valve position, thus enabling the actuator to regulate flow rather than just stopping it.

Applications:

Water and Wastewater Treatment: For controlling the flow of water and treatment chemicals.

Chemical Processing: quarter turn valve actuator are used in chemical plants where precise and reliable flow control is necessary.

Oil and Gas: Essential for quick operations in pipelines and other oil and gas infrastructure.

HVAC: Regulating air flow in large heating, ventilation, and air conditioning systems.

Advantages:

Speed and Efficiency: Quarter turn valves are quick to operate, making them ideal for systems that require rapid shut-off.

Safety and Reliability: Pneumatic actuators are suitable for explosive environments since they do not require electrical power and minimize the risk of sparks.

Durability: quarter turn valve actuator designed to endure harsh industrial environments and maintain functionality over long periods.

Features

1、Intelligent Control

quarter turn valve actuators equipped with a multi-language LCD interface for real-time monitoring of valve position, torque, and diagnostics.

Infrared remote control and 24-bit absolute encoder for precise positioning and parameter adjustments.

Self-diagnostic functions for motor overheating, phase sequence errors, and torque protection.

2、Robust Performance

Torque Range: 100Nm to 2300Nm, quarter turn valve actuator suitable for small to heavy-duty applications.

Power Options:

Single-phase: 24V/110V/220V AC or DC

Three-phase: 220V/380V/460V AC.

Protection Grade: Standard IP67 (IP68 optional), with NEMA 4X corrosion-resistant housing.

Ambient Temperature: -25°C to +70°C, adaptable to harsh environments.

3、Safety & Reliability

Fail-Safe Modes: Optional spring return, capacitor backup, or battery backup to ensure valve movement to preset positions during power loss.

Explosion-Proof Design: Certified for hazardous environments (ATEX/IECEx), with flameproof enclosures.

ISO 5211 Mounting Flange: Compatible with F05–F30 flanges for seamless valve integration.

Technical Specifications

Control Signals:

On/Off Type: Dry contact or switch signal (5A @250V AC).

Modulating Type: 4–20mA/0–10V analog input.

Motor: Class F insulation (H-class optional), S4 duty cycle (50% for modulating type).

Weight & Dimensions: quarter turn valve actuator with compact and lightweight, varying by model (e.g., EOM2: ~9kg; EOM9: ~22kg).