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Home > Industrial Equipment & Components > Valve > Butterfly Valve > PTFE Seated Marine Butterfly Valve For Shipbuilding, Full Lug Design, ANSI Class 150

PTFE Seated Marine Butterfly Valve For Shipbuilding, Full Lug Design, ANSI Class 150

PTFE Seated Marine Butterfly Valve For Shipbuilding, Full Lug Design, ANSI Class 150 thumbnail-3

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PTFE Seated Marine Butterfly Valve For Shipbuilding, Full Lug Design, ANSI Class 150 photo-4

PTFE Seated Marine Butterfly Valve For Shipbuilding, Full Lug Design, ANSI Class 150 photo-5

Product Spotlights

Marine-grade butterfly valve with a PTFE seat for leak-proof sealing in corrosive environments. Full lug ANSI Class 150 design allows for easy system isolation and maintenance. Corrosion-resistant construction suitable for seawater, fuel, and air systems on ships. Available with manual or automated actuation. ISO9001 manufactured for reliable global maritime applications.

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

Key Specifications

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Application:

Other, Shipbuilding

Body Material:

Ductile Iron, Cast Steel, Stainless Steel

Seat Material:

PTFE (Polytetrafluoroethylene)

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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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Application Other, Shipbuilding

Body Material Ductile Iron, Cast Steel, Stainless Steel

Seat Material PTFE (Polytetrafluoroethylene)

Design Standard ANSI Class 150, Full Lug Design

Connection Type Wafer, Lug, Flanged

Operation Type Lever, Gear, Electric, Pneumatic Actuator

Disc Material Ductile Iron, Stainless Steel, Nickel Plated

Shaft Material Stainless Steel

Temperature Range -20°C to 200°C (-4°F to 392°F)

Pressure Rating PN16, 150 PSI

As a leading manufacturer in the valve industry, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our high-performance PTFE Seated Marine Butterfly Valve. Engineered specifically for the demanding environments of shipbuilding and marine applications, this valve combines robust construction with superior sealing technology. With our ISO9001 certified manufacturing processes and a decade of experience since our establishment in 2016, we deliver valves that meet the stringent requirements of global maritime standards. This full lug design, ANSI Class 150 rated valve is a reliable solution for controlling fluid flow in ballast, bilge, cooling, and fire-fighting systems on vessels of all sizes.

Our commitment to quality is reflected in our annual export value of US$1-1.5 million, serving key markets across North America, South America, Europe, Asia, Africa, and Oceania. We understand that reliability at sea is non-negotiable, which is why our marine butterfly valve is designed for durability, easy operation, and minimal maintenance, ensuring long-term performance and safety for your maritime assets.

Key Product Features & Technical Advantages:

Premium PTFE Seat: The polytetrafluoroethylene (PTFE) seat provides excellent chemical resistance, a low coefficient of friction, and reliable bubble-tight sealing across a wide temperature range, from -20°C to 200°C. This ensures leak-proof performance even with corrosive seawater, fuels, and lubricants.
Full Lug Design for ANSI Class 150: The full lug (double flange) body design allows for easy installation and removal from a piping system without disturbing the adjacent pipework. This is particularly advantageous for system maintenance and inspection. The design is rated for ANSI Class 150 pressure, suitable for various marine service pressures.
Robust Construction for Marine Use: Available in body materials like ductile iron with epoxy coating or stainless steel to resist saltwater corrosion. The disc and stem are typically made from corrosion-resistant materials such as stainless steel, often with additional protective coatings.
Versatile Actuation Options: The valve can be supplied with a manual lever, gear operator, or automated with electric or pneumatic actuators. This flexibility allows for integration into both manually operated and centralized control systems onboard.
Bi-Directional Shut-Off: Engineered to provide effective sealing against flow from both directions, enhancing system safety and operational flexibility.
Compact and Lightweight: Compared to other valve types like gate valves, the butterfly valve design offers a compact profile and lower weight, which is a critical advantage in space-constrained and weight-sensitive shipboard applications.

Technical Specifications Table:

Parameter	Specification
Design & Pressure Standard	ANSI B16.34, Class 150
Face-to-Face Dimension	Per API 609 / ISO 5752
Test Standard	API 598 / ISO 5208
Flange Connection Standard	ANSI B16.5, RF Face
Seat Leakage Rate	Class VI (Bubble-tight) per API 598
Typical Sizes Available	2" (DN50) to 24" (DN600)

Benefits for Your Marine Projects:

Enhanced System Reliability: The combination of a full lug body and PTFE seat ensures a secure, long-lasting seal that withstands vibration and thermal cycling common in marine environments, reducing the risk of in-service failures.
Reduced Maintenance Costs: The PTFE seat's wear resistance and the valve's simple design lead to a longer service life and lower frequency of replacement parts, directly lowering your total cost of ownership.
Simplified Installation and Service: The full lug design permits the valve to be bolted between two flanges, acting as a dedicated piping component. This simplifies installation, system isolation, and valve replacement during dry-dock or routine maintenance.
Global Compliance and Sourcing Ease: Manufactured under an ISO9001 quality management system, our valves are designed to meet international marine standards. With major shipment ports in Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure timely and efficient logistics to shipyards worldwide.

Trust in a supplier with a proven track record. Shanghai Zhibang Valve has been serving the global marine industry since 2016, exporting to over a dozen major regions including Eastern Europe, Southeast Asia, the Middle East, and Western Europe. Our PTFE Seated Marine Butterfly Valve embodies our dedication to manufacturing valves that perform reliably where it matters most. For a valve solution that balances performance, durability, and value for your shipbuilding or offshore application, contact us today for a detailed quotation or to discuss your specific project requirements.

Frequently Asked Questions (FAQ):

Q: What is the main advantage of a Full Lug design over a Wafer type butterfly valve for marine use?
A: The Full Lug design features threaded inserts (lugs) on both sides of the valve body. This allows the valve to be bolted directly between two pipeline flanges, enabling the downstream piping to be removed without removing the valve itself. This is highly beneficial for maintenance and inspection in complex marine piping systems. Wafer valves rely on the flange bolts squeezing the valve in place, which doesn't offer the same level of end-of-line service capability.
Q: Is the PTFE seat suitable for seawater service?
A: Yes, PTFE (Teflon) is highly resistant to a wide range of chemicals, including saltwater. It does not degrade or swell in marine environments, making it an excellent seat material for ballast, cooling water, and other seawater applications, ensuring a long-lasting seal.
Q: Can this valve be used with other media besides water?
A: Absolutely. The chemical inertness of the PTFE seat allows the valve to handle various media common in ships, such as lubricating oils, diesel fuel, compressed air, and mild chemicals. Always confirm media compatibility for specific aggressive chemicals.
Q: What actuator options are available, and how do I choose?
A: We offer manual levers for quick operation in accessible locations, gear operators for larger sizes requiring mechanical advantage, and automated electric or pneumatic actuators for remote control. The choice depends on your system's automation requirements, available power source (air or electricity), and frequency of operation.
Q: What corrosion protection is provided for the valve body?
A: For ductile iron bodies, a high-performance epoxy coating is standard, which provides a robust barrier against salt spray and corrosion. For more demanding applications or where specified, valves can be supplied in materials like 316 stainless steel or with other specialized coatings upon request.
Q: Do you provide documentation and certifications with the valves?
A: Yes, as an ISO9001 certified manufacturer, we can provide standard documentation including material test reports, inspection reports, and a certificate of conformity. Specific certifications required by classification societies can be discussed and arranged based on your project needs.
Q: What is the typical delivery lead time for these valves?
A: Lead times vary based on size, material, actuation type, and order quantity. Standard configurations often have shorter lead times. We utilize multiple ports (Shanghai, Guangzhou, Hong Kong, Beijing) to optimize shipping logistics and provide you with an accurate delivery schedule upon order confirmation.
Q: Can you produce valves to specific standards required by marine classification societies?
A: We have experience manufacturing valves for the marine industry. While our standard valve meets common marine specifications, we can discuss modifications or additional testing (e.g., for ABS, DNV, LR, BV) to meet the specific requirements of different classification societies. Please provide your detailed specifications for review.