Pneumatic Operated Sanitary Butterfly Valve

The DIYE VALVE Pneumatic Operated Sanitary Butterfly Valve is independently developed and manufactured by our factory. It is a high-performance core control component for automated production scenarios in sanitary fluid piping systems. Made in China, this product adheres to strict quality control standards, integrating advanced pneumatic control technology and a sanitary structural design, meeting the stringent hygiene requirements of the food, beverage, pharmaceutical, and biological industries.

The valve uses a pneumatic actuator as its core power source, perfectly matched with a sanitary butterfly valve body. It enables rapid, remote, and automated opening and closing of media, improving pipeline operating efficiency and stability. Its dead-angle-free structure prevents media residue and bacterial growth, reliable sealing ensures zero media leakage, and its rapid response capability adapts to the dynamic adjustment needs of automated production lines, fully complying with the sanitary industry's CIP (Clean-in-Place) and SIP (Sterilize-in-Place) requirements.

Core Working Principle

The pneumatic actuator of the Pneumatic Operated Sanitary Butterfly Valve drives the valve stem to rotate the valve disc, thus opening and closing the valve. When air enters one side of the actuator, it pushes the piston, causing the valve stem to rotate, completing the opening and closing action. Depending on the actuator structure, it is available in two modes: double-acting and single-acting.

- Double-acting actuator: Alternating air intake and exhaust from both sides achieves forward and reverse valve disc rotation. Suitable for scenarios requiring frequent opening and closing, it offers stable operation and strong adaptability.

- Single-acting actuator: Driven by air intake on one side, the other side relies on spring force for automatic reset upon air supply failure. This ensures safe pipeline operation and avoids potential safety hazards in case of air supply system failure.

Furthermore, the valve opening and closing angle can be flexibly adjusted via the actuator. Some models support stepless adjustment from 0° to 90°, meeting both basic pipeline opening and closing control and fine flow regulation needs, adapting to different production scenarios.

Optional Pneumatic Actuators and Accessories

1. Optional Pneumatic Actuators

- Single-acting actuator: Equipped with spring reset function, it automatically returns to its original position upon air supply failure, offering high safety protection and suitable for scenarios with high safety requirements.

- Double-acting actuator: Driven by dual air sources, providing smooth and stable opening and closing actions, and high durability. Suitable for high-frequency operation scenarios such as continuous production lines.

2. Matching Accessories

- Pneumatic triplet: Composed of a filter, pressure reducing valve, and lubricator, it filters impurities in the air supply, stabilizes air pressure, lubricates the actuator, extends service life, and ensures stable valve operation.

- Solenoid valve: Controls the air supply, enabling remote valve opening and closing, facilitating integration with a central control system and enhancing automation.

- Position transmitter: Provides real-time feedback on valve opening and closing status, allowing for real-time monitoring by the central control system and ensuring controllable production processes.

- Limit switch: Prevents valve disc overtravel, avoiding mechanical damage and protecting the valve structure.

- Handwheel mechanism: Used for emergency manual operation; allows valve opening and closing even in the event of air supply failure, ensuring production continuity.

About DIYE VALVE

As a professional manufacturer and supplier of Pneumatic Operated Sanitary Butterfly Valve made in China, DIYE VALVE possesses a complete R&D, production, sales, and after-sales service system, committed to providing high-quality products and attentive service to global customers.

We have a professional foreign trade and technical team fluent in English, Russian, Arabic, and other languages, providing 24-hour online support to answer questions regarding product selection, installation, commissioning, and maintenance, and offering multilingual installation and maintenance manuals. Our factory implements a strict quality inspection process, rigorously controlling every step from raw material selection to product delivery, ensuring that every valve meets high-quality standards.

To solve the spare parts procurement challenges faced by overseas customers, we provide commonly used spare parts such as seals, pneumatic triple units, and solenoid valves, significantly shortening logistics cycles and reducing procurement costs. We also offer a 12-month warranty on the entire valve unit and a 6-month warranty on vulnerable parts. During the warranty period, non-human-caused malfunctions will be repaired free of charge, comprehensively guaranteeing the user experience for overseas customers.

Technical Parameters

FAQ

Q: What types of pneumatic actuators are available for sanitary pneumatic butterfly valves and how to select them?

A: The mainstream types are single-acting and double-acting pneumatic actuators, selected based on the safety requirements and operation frequency of the working conditions: ① Double-acting actuator: Driven by dual air sources, the valve opens and closes stably with fast response, suitable for conventional sanitary working conditions with automatic production lines and high-frequency operations, and needs to be equipped with external air source to control on-off; ② Single-acting actuator: With spring return structure, driven by air intake on one side and automatically reset (open/close) after air loss, it has high safety and protection performance, suitable for high-risk sanitary working conditions where the medium is flammable, toxic and corrosive, and can effectively avoid pipeline safety risks after air source failure.

Q: What accessories are needed for sanitary pneumatic butterfly valves? What is the function of the core accessories?

A4: Basic mandatory A:accessories + optional accessories as needed, the core accessories and their functions are: ① Pneumatic triple unit (filter + pressure reducing valve + oil mist device): Mandatory, filters air source impurities, stabilizes air supply pressure, lubricates internal parts of the actuator, and prolongs the service life of the actuator; ② Solenoid valve: Optional, remotely controls the on-off of air source, realizes automatic and centralized opening and closing of the valve, and is suitable for the linkage of the central control system; ③ Position feedback device: Optional, real-time feedback of the valve's opening and closing status (open/close/neutral), facilitating remote monitoring of pipeline operation; ④ Handwheel mechanism: Optional, the valve can be operated manually when the air source fails, suitable for emergency working conditions; ⑤ Limit switch: Optional, prevents the valve disc from rotating over stroke and protects the valve body and seals.

Q: What is the air source pressure requirement for sanitary pneumatic butterfly valves? Can it adapt to the on-site non-standard air source?

A: The conventional adaptive air source pressure is 0.4~0.8MPa, which is the industrial general standard air pressure and suitable for most on-site air supply conditions; if the on-site air source is non-standard pressure (lower than 0.4MPa or higher than 0.8MPa), a customized adaptive pneumatic actuator can be provided, and a pressure reducing valve/booster valve can be equipped to adjust the air pressure to ensure the normal opening and closing of the valve without additional transformation of the on-site air supply system.