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Home > Industrial Equipment & Components > Valve > Butterfly Valve > GB/T3036-94 Marine Wafer Butterfly Valve DN50-DN600 PN0.6-1.6MPa for Marine Applications

GB/T3036-94 Marine Wafer Butterfly Valve DN50-DN600 PN0.6-1.6MPa for Marine Applications

GB/T3036-94 Marine Wafer Butterfly Valve DN50-DN600 PN0.6-1.6MPa for Marine Applications thumbnail-3

GB/T3036-94 Marine Wafer Butterfly Valve DN50-DN600 PN0.6-1.6MPa for Marine Applications thumbnail-4

GB/T3036-94 Marine Wafer Butterfly Valve DN50-DN600 PN0.6-1.6MPa for Marine Applications thumbnail-5

GB/T3036-94 Marine Wafer Butterfly Valve DN50-DN600 PN0.6-1.6MPa for Marine Applications photo-1

GB/T3036-94 Marine Wafer Butterfly Valve DN50-DN600 PN0.6-1.6MPa for Marine Applications photo-2

GB/T3036-94 Marine Wafer Butterfly Valve DN50-DN600 PN0.6-1.6MPa for Marine Applications photo-3

GB/T3036-94 Marine Wafer Butterfly Valve DN50-DN600 PN0.6-1.6MPa for Marine Applications photo-4

GB/T3036-94 Marine Wafer Butterfly Valve DN50-DN600 PN0.6-1.6MPa for Marine Applications photo-5

Product Spotlights

Designed to GB/T3036-94 marine standard, this wafer butterfly valve series (DN50-DN600, PN0.6-1.6MPa) offers reliable, space-saving fluid control for shipboard systems. Features corrosion-resistant materials, bubble-tight sealing with EPDM/NBR/Viton seats, and optional lever, gear, or actuator operation. Ideal for ballast, cooling, fuel, and general service lines, ensuring durability and low maintenance in harsh marine environments.

Negotiable MOQ: 1 Unit (Price negotiable depending on order volume and customization)

Key Specifications

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Standard:

GB/T3036-94

Application:

Other, Marine Applications

Connection Type:

Wafer

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Shanghai Zhibang Valve Manufacture Co.,ltd

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
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Standard GB/T3036-94

Application Other, Marine Applications

Connection Type Wafer

Valve Size Range DN50 to DN600

Pressure Rating PN0.6-1.6MPa

Body Material Ductile Iron/Cast Steel/Customizable

Disc Material Stainless Steel/Ductile Iron

Seat Material EPDM/NBR/Viton/Customizable

Operation Type Lever/Gearbox/Actuator Optional

As a professional valve manufacturer with a strong export presence, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our high-performance GB/T3036-94 Marine Wafer Butterfly Valve. Engineered specifically for demanding marine environments, this valve series from DN50 to DN600 offers a reliable and cost-effective solution for fluid control on ships and offshore platforms. With our ISO9001-certified manufacturing processes and annual export experience exceeding US$1 million, we ensure each valve delivers consistent performance, durability, and compliance with stringent marine standards.

Our Marine Wafer Butterfly Valve is designed to meet the rigorous requirements of shipboard piping systems, including ballast, cooling water, fuel oil, and general service lines. Its compact wafer design allows for easy installation between flanges, saving space and weight – critical factors in marine engineering. The valve operates efficiently across a pressure range of PN0.6 to 1.6MPa, providing versatile control for various onboard applications.

Key Features & Technical Advantages:

Robust Construction for Marine Use: The valve body is typically manufactured from ductile iron or cast steel with anti-corrosion coatings like epoxy or galvanization to withstand salty, humid marine atmospheres. The disc, often made of stainless steel or coated ductile iron, resists erosion and corrosion from seawater and other fluids.
Superior Sealing Performance: Equipped with a resilient seat made from materials like EPDM (for water), NBR (for oil), or Viton (for chemicals), the valve ensures bubble-tight shut-off, preventing leaks that could compromise vessel safety and efficiency.
Easy Operation & Maintenance: Available with lever, gearbox, or pneumatic/electric actuator operation, the valve allows for manual or automated control. The simple design features few moving parts, enabling quick inspection and minimal maintenance, even in confined engine room spaces.
Compliance & Interchangeability: Manufactured to the GB/T3036-94 standard, a recognized Chinese national standard for marine valves, our product offers reliable quality and can be suitable for integration with international marine piping systems.

Detailed Technical Specifications:

Parameter	Specification
Product Standard	GB/T3036-94
Design Type	Wafer (Lug type optional)
Size Range (Nominal Diameter)	DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600
Pressure Rating (PN)	0.6MPa, 1.0MPa, 1.6MPa
Body Material	Ductile Iron (QT450-10), Cast Steel (WCB), Optional
Disc Material	Stainless Steel (CF8/304, CF8M/316), Ductile Iron with Ni-plating
Seat Material	EPDM, NBR, Viton, PTFE, Customizable
Stem Material	Stainless Steel (2Cr13, 304, 316)
Operating Temperature	Dependent on seat material (e.g., EPDM: -20°C to 120°C)
Operation Method	Lever Handle, Worm Gear Operator, Pneumatic Actuator, Electric Actuator
Face-to-Face Dimension	Complies with GB/T3036-94 / ISO 5752 Series 14
Flange Standard	ISO, JIS, ANSI, DIN, GB standards available

Benefits for Your Marine Projects:

Enhanced System Reliability: The valve's corrosion-resistant materials and tight sealing ensure long-term, trouble-free operation in critical marine systems, reducing downtime and repair costs.
Space and Weight Savings: The wafer design is lighter and more compact compared to gate or globe valves, contributing to overall weight reduction and efficient use of limited shipboard space.
Cost-Effective Fluid Control: Provides an economical solution without compromising performance. Lower initial investment coupled with minimal maintenance requirements leads to a favorable total cost of ownership.
Flexibility and Customization: We offer various material combinations, end connections, and actuation options to match specific fluid media, pressure conditions, and control system requirements on your vessel.

Backed by Shanghai Zhibang Valve's manufacturing expertise since 2016 and our proven track record of exporting to major markets worldwide – including North America, Europe, Southeast Asia, Africa, and the Middle East – you can trust in the quality and global acceptance of our marine valves. Our products are shipped efficiently from ports like Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring timely delivery to shipyards and marine equipment suppliers. Choose our GB/T3036-94 Marine Wafer Butterfly Valve for a dependable, standards-compliant component that enhances the safety and operational efficiency of your marine applications. Contact us today for a detailed quotation or to discuss your specific project requirements.

Frequently Asked Questions (FAQ):

Q: What does "GB/T3036-94" mean, and is it recognized internationally?
A: GB/T3036-94 is a Chinese national technical standard specifically for marine butterfly valves. It specifies requirements for design, materials, dimensions, testing, and marking. While it is a Chinese standard, many of its technical parameters align with international norms (like ISO standards), making valves manufactured to this specification suitable for global marine projects, especially when paired with compatible flange standards.
Q: Can this wafer valve be used with different flange standards like ANSI or JIS?
A: Yes. While the valve body dimensions comply with GB/T3036-94, we can supply valves with flange face configurations (drilling, raised face) to match common international standards such as ANSI, JIS, DIN, or ISO upon request. Please specify your required flange standard when inquiring.
Q: What is the main advantage of a wafer-type design over a lug-type for marine use?
A: The wafer design is sandwiched between two pipeline flanges using through-bolts. It is generally lighter, more compact, and often more cost-effective. For marine applications where space and weight are premium, the wafer type is frequently preferred. Lug-type valves have threaded inserts (lugs) for bolting to each flange independently and may be used where one side of the pipeline needs to be disconnected.
Q: What seat material do you recommend for seawater service?
A: For seawater (ballast, cooling water), EPDM (Ethylene Propylene Diene Monomer) is a commonly recommended resilient seat material due to its excellent resistance to seawater, ozone, and weathering. For more corrosive media or higher temperatures, materials like Viton or PTFE may be considered.
Q: Are these valves suitable for actuation (automated control)?
A> Absolutely. Our butterfly valves are designed to be compatible with pneumatic (air) actuators or electric actuators. We can supply the valve as a manual unit (lever or gear) or as a complete package with an actuator, positioner, and other accessories tailored to your control system needs.
Q: What kind of testing do these valves undergo before shipment?
A> Each valve undergoes rigorous factory testing, which typically includes a shell strength test (hydrostatic pressure test on the body) and a seat leakage test to ensure it meets the specified pressure rating and provides tight shut-off. Test certificates can be provided upon request.
Q: What is the typical lead time for an order of DN200 valves?
A> Lead time depends on the order quantity, specific material configuration, and actuation requirements. For standard configurations in moderate quantities, production lead time is generally within 30-45 days, excluding shipping. We provide accurate lead time estimates with every quotation.
Q: Do you provide technical support for valve selection and installation?
A> Yes. As a manufacturer, our engineering team can provide technical support to help you select the appropriate valve size, materials, and accessories for your specific marine application. We can also supply installation manuals and guidance.