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Help CenterWafer Type Marine Butterfly Valve For Petrochemical Service, DN80-DN600, PN16 Rated
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As a leading manufacturer with ISO9001 certified quality management, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing high-performance, reliable fluid control solutions for demanding industrial applications. Our Wafer Type Marine Butterfly Valve is engineered specifically to meet the rigorous challenges of petrochemical and marine services, offering superior sealing, durability, and ease of operation. With a focus on precision engineering and robust construction, this valve series is designed to ensure long-term performance and safety in critical piping systems, helping you optimize operational efficiency and minimize maintenance downtime. We are committed to delivering valves that not only meet but exceed the expectations of our global clientele across diverse markets.
This valve series represents a culmination of our expertise in valve manufacturing since 2016, tailored for applications where reliability is non-negotiable. The wafer type design provides a compact, lightweight, and cost-effective solution for on/off and throttling services in a wide range of media. Key features and benefits include:
- Robust Construction for Harsh Environments: Designed to withstand the corrosive and high-pressure conditions typical in petrochemical plants and marine systems. The body and critical components are manufactured from materials selected for their strength and corrosion resistance.
- Excellent Bubble-Tight Shut-off: Features a precision-machined disc and a resilient seat that ensures reliable, bubble-tight sealing even after numerous cycles, preventing costly leaks and ensuring process integrity.
- Low Torque Operation & Long Service Life: The optimized disc design and high-quality bearing system result in low operating torque, reducing wear on the seat and extending the valve's operational lifespan. This translates to lower lifecycle costs.
- Bi-Directional Flow Capability: The symmetrical wafer design allows for installation in either flow direction, providing flexibility in system design and piping layout.
- Easy Installation & Maintenance: The wafer style fits between two pipe flanges, secured by bolts, making installation and removal straightforward without needing to disconnect the entire pipeline. Maintenance is simplified due to the valve's accessible internal components.
- Versatile Actuation Options: Available with manual lever, gear operator, or can be fitted with electric or pneumatic actuators for remote and automated control, integrating seamlessly into modern control systems.
Below is a summary of the primary technical specifications for the standard configuration. Customizations are available upon request to meet specific project requirements.
| Parameter | Specification / Option |
|---|---|
| Size Range (Nominal Diameter) | DN80, DN100, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600 |
| Pressure Rating | PN16 (16 bar) |
| Body Material (Common) | Cast Iron (GG25), Ductile Iron (GGG40), Carbon Steel (WCB), Stainless Steel (CF8/304, CF8M/316) |
| Disc Material | Stainless Steel (304, 316), Duplex Stainless Steel, Nickel Plated Carbon Steel |
| Seat Material | EPDM (for water, mild chemicals), NBR (oil resistance), PTFE (high temp, broad chem), Viton® (FKM) (aggressive chemicals) |
| Stem Material | Stainless Steel (304, 316, 17-4PH) |
| Temperature Range | -20°C to +150°C (depending on seat material; PTFE allows higher) |
| Face-to-Face Dimension | Conforms to ISO 5752 Series 14 (Short Pattern) or Series 20 (Long Pattern) |
| Flange Connection Standard | ISO 7005-2 PN16, ANSI B16.5 Class 150, JIS B2220 10K, etc. |
| Operation | Manual Lever, Worm Gear, Electric Actuator, Pneumatic Actuator (Double Acting / Spring Return) |
The advantages of choosing our Wafer Type Marine Butterfly Valve are clear for businesses in the petrochemical and marine sectors. It provides a cost-effective and space-saving alternative to gate or globe valves without compromising on performance. The reliable sealing minimizes product loss and environmental risk. Its durability under demanding conditions reduces the frequency and cost of replacements. Furthermore, the ease of operation and maintenance lowers labor requirements and system downtime, contributing directly to improved operational profitability and safety.
Backed by our ISO9001 certification and a proven track record of exporting to major markets including North America, Europe, Southeast Asia, and the Middle East, Shanghai Zhibang Valve stands as a trusted partner. Our annual export value reflects the consistent quality and reliability our clients depend on. We support our products with flexible shipping options from key ports like Shanghai, Guangzhou, and Hong Kong. For your next project requiring dependable, high-performance valves for petrochemical or marine service, contact us to discuss your specifications. Let our expertise and manufacturing capability provide you with a valve solution that ensures efficiency, safety, and value.
Frequently Asked Questions (FAQ)
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Q: What is the main difference between a wafer-type and a lug-type butterfly valve?
A: A wafer-type valve is installed by clamping it between two pipeline flanges using through-bolts. It relies on the flange bolts for sealing and positioning. A lug-type valve has threaded inserts (lugs) on the valve body, allowing it to be bolted directly to each flange, which can support the valve weight and allows for downstream removal of one side of the piping. Wafer types are generally more compact and economical. -
Q: Is this valve suitable for seawater applications?
A: Yes, when configured with appropriate materials. For seawater or highly corrosive marine environments, we recommend specifying a valve body and disc in 316 stainless steel or duplex stainless steel, along with a compatible seat material like EPDM or PTFE. Please provide your specific media details for a precise material recommendation. -
Q: Can this valve be used for throttling (flow control) or is it only for on/off service?
A: While primarily designed for reliable on/off service, this butterfly valve can be used for throttling applications within its design parameters. The disc design provides a reasonably linear flow characteristic. For precise throttling control, we recommend pairing it with a suitable actuator and positioner. -
Q: What is the delivery lead time for a standard DN200, PN16 valve?
A: For standard material configurations (e.g., cast iron body, SS disc, EPDM seat) and manual operation, we typically maintain stock or can offer a short production lead time. Exact lead times depend on current order volume and specific configuration. Please inquire with your required quantity and specifications for an accurate delivery schedule. -
Q: Do you provide valves with actuators, and are they mounted and tested?
A: Yes, we offer a complete package. We can supply electric or pneumatic actuators from reputable brands or our own range. The valves can be factory-mounted, aligned, and tested with the actuator to ensure proper operation before shipment, saving you time and effort on-site. -
Q: What certifications do your valves carry?
A> Our manufacturing process is certified to ISO9001:2015 for quality management. The valves themselves are manufactured to international standards such as ISO 5752, API 609, and EN 593. Specific product certifications (like CE marking for PED) can be provided upon request and may be subject to additional testing and documentation. -
Q: How do I determine the correct seat material for my application?
A> The seat material is critical for compatibility with the fluid, temperature, and pressure. Key factors are chemical resistance, temperature range, and abrasion resistance. We provide a material selection guide. Common choices: EPDM for water/steam, NBR for oils/fuels, PTFE for wide chemical and higher temperature, Viton® for aggressive chemicals. Please share your operating conditions for our technical team's recommendation. -
Q: What is your payment term and minimum order quantity (MOQ)?
A> We offer flexible payment terms, commonly T/T or L/C at sight. The MOQ is flexible, especially for standard items. We welcome sample orders for quality verification and can accommodate both small trial orders and large project volumes.
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