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Help CenterGB/T3036 Pneumatic Butterfly Valve, Wafer Type, Carbon Steel Construction, DN150-DN300
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As a leading manufacturer with a strong commitment to quality and reliability, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our GB/T3036 Pneumatic Butterfly Valve, Wafer Type, constructed from durable carbon steel. Engineered for precise flow control in demanding industrial environments, this valve combines robust construction with efficient pneumatic actuation, offering a dependable solution for a wide range of fluid handling applications. Our years of expertise since 2016 and adherence to the ISO9001 quality management system ensure that every valve delivers consistent performance and longevity, providing excellent value for our global clientele across diverse markets.
This pneumatic butterfly valve is designed to meet the rigorous GB/T3036 standard, ensuring compatibility and reliability within Chinese industrial specifications and beyond. Its wafer-type design allows for easy installation between pipe flanges, making it a space-saving and cost-effective choice. The valve's core advantages lie in its durable construction, responsive actuation, and versatile application potential.
- Robust Carbon Steel Construction: The valve body and disc are manufactured from high-grade carbon steel, providing exceptional strength and resistance to mechanical stress, making it suitable for a wide range of pressures and temperatures common in industrial settings.
- Efficient Pneumatic Actuation: Equipped with a double-acting or spring-return pneumatic actuator, the valve enables rapid opening and closing cycles. This allows for remote operation, integration into automated control systems (PLC/SCADA), and precise modulation when paired with positioners.
- Wafer-Type Design Benefits: The wafer-style connection simplifies installation and maintenance. It is mounted between two pipe flanges using long bolts, which reduces overall weight and space requirements compared to lug-type or flanged valves, leading to lower installation costs.
- Reliable Sealing Performance: The valve features a resilient seat (options like EPDM, NBR, or PTFE are available) that ensures a tight, bubble-tight shut-off, minimizing leakage and enhancing system efficiency. The disc design optimizes flow with low pressure drop.
- Corrosion Resistance & Durability: Critical components such as the shaft are typically made from stainless steel to prevent corrosion and ensure smooth operation over an extended service life, even in mildly corrosive environments.
- Wide Size Availability: Offered in sizes from DN150 to DN300, this valve series can accommodate various pipeline dimensions, providing flexibility for system design and expansion.
To provide a clear overview of the technical specifications, please refer to the table below outlining key parameters for standard configurations. Customizations are available upon request.
| Parameter | Specification / Option |
|---|---|
| Design & Manufacturing Standard | GB/T 3036 |
| Valve Type | Wafer, Centric, Pneumatic Operated |
| Body Material | Carbon Steel (WCB or equivalent) |
| Nominal Diameter (DN) | 150, 200, 250, 300 |
| Pressure Rating (PN) | PN10, PN16 (or as requested) |
| Seat Material | EPDM (Standard), NBR, PTFE, Viton* |
| Disc Material | Carbon Steel with optional coating* |
| Shaft Material | Stainless Steel (410 or 304) |
| Actuator Type | Pneumatic Double-Acting / Spring-Return |
| Control Signal (Optional) | 4-20mA, 0-10V, On/Off Switch |
| Operating Temperature | Depends on seat material (e.g., EPDM: -20°C to 120°C) |
| End Connection | Wafer, fits between ANSI/DIN/JIS flanges |
*Customizable options are available. Please consult our technical team for specific requirements.
Benefits for Your Operation: Choosing our pneumatic butterfly valve translates into tangible benefits for your business. You gain a durable and low-maintenance component that reduces downtime. The automation-ready design enhances process control and operational efficiency. Its compact wafer design saves valuable space and simplifies installation, lowering project costs. Furthermore, the valve's compliance with GB/T3036 assures a level of quality and interoperability recognized in many industrial sectors.
Shanghai Zhibang Valve has established itself as a trusted partner since 2016, with an annual export value reflecting strong international demand. Our products reach key markets across North America, South America, Europe, Asia, Africa, and Oceania, demonstrating widespread acceptance and reliability. Our ISO9001 certification underpins our commitment to consistent quality in every valve we produce. Sourced directly from our manufacturing facility in Shanghai and shipped via major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure competitive pricing and reliable logistics. This valve embodies our dedication to providing robust, automated flow control solutions. For detailed quotations, technical datasheets, or to discuss custom configurations for your specific DN150-DN300 application, please contact us today.
Frequently Asked Questions (FAQ):
Q1: What is the main advantage of a wafer-type butterfly valve over other types?
A: The primary advantage is its compact and lightweight design. It installs between two pipeline flanges using longer bolts, eliminating the need for dedicated valve flanges. This results in significant space and weight savings, reduced material costs, and generally easier installation compared to lug-type or flanged-end valves.
Q2: Can this pneumatic valve be used for throttling (flow control) or is it only for on/off service?
A: While excellent for on/off service, this valve can also be used for throttling when equipped with the appropriate accessories. Pairing it with a pneumatic positioner and a compatible control signal (like 4-20mA) allows for precise proportional control of the disc angle, enabling accurate flow modulation.
Q3: Is the valve suitable for use with corrosive fluids?
A: The standard carbon steel body is ideal for general industrial applications like water, air, and neutral fluids. For mildly corrosive media, options such as stainless steel shafts and specific seat materials (e.g., PTFE, Viton) enhance compatibility. For highly corrosive services, we recommend consulting our team for a material review or exploring our stainless steel valve lines.
Q4: What pneumatic pressure is required to operate the actuator?
A: The standard pneumatic actuators are typically designed to operate on a supply pressure range of 4 to 7 bar (approximately 60 to 100 psi). The exact pressure requirement for smooth operation depends on the valve size and the required torque. Specific details are provided in the actuator technical sheet.
Q5: Do you provide accessories like solenoid valves, limit switches, or positioners?
A: Yes, we offer a comprehensive range of accessories to create a complete actuated valve package. This includes solenoid valves for electrical control, limit switches for position feedback, positioners for precise control, filter regulators, and manual overrides. These can be pre-assembled and tested at our factory.
Q6: How does the GB/T3036 standard compare to international standards like ISO or ANSI?
A: GB/T3036 is a Chinese national standard for butterfly valves that covers dimensions, pressure ratings, and testing requirements. It is broadly aligned with common international practices. Our valves are manufactured to meet the dimensional and performance criteria of GB/T3036, ensuring they are compatible with piping systems designed to similar international norms. Dimensional interchangeability can be confirmed for specific flange standards (like ANSI or DIN).
Q7: What is the typical lead time for orders of these valves?
A: Lead times vary based on order quantity, specific configuration (size, seat material, accessories), and current production schedule. For standard configurations in DN150-DN300, we often maintain some inventory or have shorter production cycles. We provide accurate lead time estimates upon receipt of your detailed inquiry or purchase order.
Q8: What warranty or after-sales support do you offer?
A: We stand behind the quality of our products. Our valves come with a standard warranty against defects in material and workmanship under normal use. Our experienced technical support team is available to assist with installation guidance, troubleshooting, and spare parts inquiries to ensure your long-term satisfaction.
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