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Help CenterGB/T3036 Pneumatic Butterfly Valve, Double Acting Actuator, 0.6-1.6MPa Operating Pressure
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As a professional manufacturer with ISO9001 certified quality management, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing reliable and efficient industrial valve solutions. Our GB/T3036 standard Pneumatic Butterfly Valve with a Double Acting Actuator is engineered for precise flow control in demanding applications where a wide operating pressure range of 0.6-1.6 MPa is required. This robust valve combines the simplicity of a butterfly valve with the responsive power of a pneumatic actuator, offering a cost-effective and durable solution for automated process systems across various industries.
This valve is designed to meet the rigorous demands of modern industrial automation. The double-acting pneumatic actuator provides bi-directional driving force, ensuring reliable opening and closing actions even under fluctuating line pressures. Its construction adheres to the GB/T3036 national standard, ensuring dimensional interchangeability and performance consistency. Key features and benefits include:
- Wide Pressure Compatibility: Engineered to perform reliably across a broad spectrum from 0.6 MPa to 1.6 MPa, making it suitable for diverse system requirements.
- Robust Actuation: The double-acting actuator uses air pressure on both sides of the piston to generate torque, providing consistent and powerful operation for both opening and closing cycles without the need for internal springs.
- Precise Flow Control: The disc design and high-quality seat ensure excellent shut-off and modulating control capabilities, minimizing pressure drop and optimizing system efficiency.
- Durable Construction: Available in various body materials like cast iron, ductile iron, and stainless steel, paired with resilient seat materials (EPDM, NBR, PTFE) to withstand corrosive and abrasive media.
- Low Maintenance: Simple design with minimal moving parts reduces the need for frequent maintenance and ensures long service life, lowering total cost of ownership.
- Flexible Configuration: Options include manual override, limit switches, positioners, and solenoid valves for complete control integration. Various connection types (wafer, lug, flanged) are available to suit different piping systems.
The technical specifications for common configurations are outlined in the table below. Please note that custom specifications regarding materials, sizes, and accessories are available upon request to meet specific project needs.
| Parameter | Specification / Option | Notes |
|---|---|---|
| Design Standard | GB/T 3036 | National Standard for Butterfly Valves |
| Nominal Diameter (DN) | 50, 65, 80, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 600+ | Sizes up to DN1200 are available |
| Pressure Rating (PN) | PN10, PN16 | Suitable for 0.6-1.6 MPa operating range |
| Actuator Air Supply | 0.4 - 0.7 MPa (Standard) | Dry, clean, lubricated or non-lubricated air |
| Actuator Operation Time | Varies by size & torque | Typically 2-30 seconds for 90° rotation |
| Ambient Temperature | -20°C to +80°C | For actuator and accessories |
For industrial buyers, the primary advantages of choosing this valve translate into tangible operational benefits. The double-acting actuator ensures fail-safe operation is not required, simplifying system design and potentially reducing costs. The wide operating pressure range offers flexibility for system upgrades or applications with variable pressure conditions. Compliance with the GB/T3036 standard guarantees a certain level of quality and dimensional accuracy, facilitating easier installation and replacement. Furthermore, the valve's adaptability to different control signals (on/off, 4-20mA, etc.) makes it a versatile component for integration into PLC or DCS-controlled systems.
Backed by our manufacturing expertise since 2016 and an ISO9001 certified quality system, Shanghai Zhibang Valve delivers products that meet consistent performance standards. Our annual export value of US$1-1.5 Million and presence in major global markets including North America, Europe, Southeast Asia, and Africa demonstrate our capability to understand and fulfill international requirements. We support shipments from key ports like Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring efficient logistics. Choose our GB/T3036 Pneumatic Butterfly Valve for a reliable, standardized, and cost-effective automation component that enhances your system's control and efficiency. Contact us today to discuss your specifications or request a detailed quotation.
Frequently Asked Questions (FAQ)
Q1: What is the main difference between a double-acting and a spring-return (single-acting) actuator on this valve?
A1: A double-acting actuator uses air pressure to drive the piston in both directions (open and close). A spring-return actuator uses air to drive in one direction and a spring to return. Double-acting is chosen when fail-safe position is not critical, and it generally provides more consistent torque output.
Q2: Can this valve be used for throttling or modulating control, or is it only for on/off service?
A2: Yes, when equipped with a suitable pneumatic positioner (available as an option), this valve can perform precise modulating control for flow, pressure, or level regulation, not just simple on/off operation.
Q3: What seat materials are recommended for different media like hot water, chemicals, or abrasive slurries?
A3: EPDM is common for hot water and mild chemicals, NBR for oils and fuels, PTFE for aggressive chemicals and high temperatures. For abrasive slurries, a hardened seat or specific elastomer compound can be selected. We can advise based on your media.
Q4: Is a manual override feature available?
A4: Yes, a manual override handwheel or lever can be supplied as an optional accessory. This allows for manual operation in case of air supply failure or during maintenance.
Q5: What is the lead time for standard sizes like DN100 or DN150?
A5: For standard configurations with common materials (like cast iron body, EPDM seat), we typically maintain stock or can produce with a lead time of 15-30 days. Exact timing depends on current order volume and specific requirements.
Q6: Do you provide technical support for sizing the actuator or selecting accessories?
A6: Absolutely. Our technical team can assist with actuator sizing based on your required torque, air supply pressure, and valve size. We also help select appropriate accessories like limit switches, solenoid valves, and filters/regulators/lubricators (FRL units).
Q7: What end connections are available besides wafer type?
A7: We offer wafer, lug, and double flanged end connections. Lug-style valves allow downstream piping to be disconnected without removing the valve, which is useful for maintenance. Flanged ends provide a robust bolted connection.
Q8: How does adherence to the GB/T3036 standard benefit an international buyer?
A8: While GB/T is a Chinese national standard, it ensures the product is manufactured to precise dimensional and performance specifications. This provides consistency, reliability, and often facilitates interchangeability with other valves designed to similar metric standards. It is a mark of controlled manufacturing quality.
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