OKE Electric Diaphragm Three-Way Control ValveOverview

The OKE Electric Diaphragm Three-Way Control Valve is an advanced regulating device that integrates an electric actuator and a three-way valve body. It is widely used in industrial automation control systems to regulate process parameters such as medium flow, pressure, and temperature. This valve offers advantages such as simple structure, high regulation accuracy, excellent stability, and ease of operation, making it widely applicable across various industries.

OKE Electric Diaphragm Three-Way Control ValveWorking Principle

The core of the electric diaphragm three-way control valve lies in its electric actuator, which receives control signals (such as 4-20mA or 1-5VDC) and drives the valve plug to move, thereby adjusting the valve opening to precisely regulate the medium flow. The servo amplifier within the actuator processes the control signals, ensuring the valve responds quickly and accurately to control commands.

OKE Electric Diaphragm Three-Way Control ValveFeatures

The fluid acts on the valve plug in a flow-open direction, ensuring stable operation. In addition to the bushing guidance at the valve cover, the side of the valve plug and the inner surface of the valve seat also provide guidance, offering a large guiding area and reliable performance. The servo amplifier employs dynamic negative feedback to enhance regulation accuracy.

The electric operator comes in various forms, compatible with 4–20mA.DC or 0–10mA.DC signals. Electronic electric control valves can directly control the valve opening via current signals without requiring a servo amplifier.

It reduces automation investment; compared to single-seat, double-seat, or sleeve control valves, it can replace one valve in the same system, simplifying the system and saving costs.

The bellows seal type provides complete sealing for the moving valve stem.

OKE Electric Diaphragm Three-Way Control ValveStructural Design

The design of the electric diaphragm three-way control valve prioritizes practicality and reliability. The valve body typically adopts a straight-through cast globe valve structure, offering excellent sealing and regulation performance. The side of the valve plug and the inner surface of the valve seat provide guidance, ensuring stable operation even under high-flow conditions. Additionally, a bellows seal design is commonly used to prevent medium leakage, ensuring the valve's sealing performance.

OKE Electric Diaphragm Three-Way Control ValveControl System

The control system of the electric diaphragm three-way control valve can be customized according to different application needs, supporting various input signals such as current or voltage signals to adapt to different industrial automation control systems. Furthermore, the valve can achieve remote monitoring and operation through electronic control units, significantly improving work efficiency and safety.

OKE Electric Diaphragm Three-Way Control ValveApplication Cases

Due to its excellent regulation performance and stable operation, the electric diaphragm three-way control valve is widely used in areas such as frozen food plant equipment and heat exchangers in the petroleum industry. It not only enables precise control of process parameters but also effectively simplifies systems and reduces automation investment.

OKE Electric Diaphragm Three-Way Control ValveSummary

With its efficient and precise regulation capabilities and reliable operational performance, the electric diaphragm three-way control valve has become an indispensable key component in modern industrial automation control. As technology continues to advance, its application in industrial fields will become increasingly widespread, bringing greater convenience and benefits to industrial production.

OKE Electric Diaphragm Three-Way Control ValveDetailed Parameters

Diameter: DN15–300mm

Pressure: PN1.0–PN6.4MPa

Applicable Temperature: -30–+425°C

Applicable Medium: Water, oil, gas, etc.

Connection Method: Flange

Valve Body Material: WCB, 304, 316

Valve Stem Material: 304, 316

Sealing Material: PTFE packing, 304, 316

Product Brand: OKE (USA)