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C83600 Concentric Butterfly Valve Disc – Detailed Introduction
1. Material Description C83600 belongs to Leaded Tin Bronze, one of the internationally recognized and widely used materials for marine valves. Main Composition: Copper (Cu): ~83% Tin (Sn): ~7% Lead (Pb): ~7% Zinc (Zn): ~3% Standards: Complies with ASTM B62, SAE 40 Material Properties: High strength and toughness Excellent corrosion resistance, especially suitable for seawater and […]
Bronze Disc for Butterfly Valve
Product Description The bronze disc is one of the key components of a butterfly valve, mounted inside the valve body and connected with the stem and seat to control on-off and flow regulation. Manufactured from high-quality bronze alloys, the disc provides excellent corrosion resistance and mechanical strength, making it especially suitable for seawater, brine, and […]
Concentric Type Butterfly Valve with Pin and Pinless
Concentric Butterfly Valve with Pin Structure: The disc is fixed to the stem by pins, ensuring direct and reliable connection. Advantages: Simple manufacturing process and easy assembly. Reliable torque transmission between the disc and the stem, not easy to slip. Suitable for larger torque and frequent open/close operations. Disadvantages: Pin holes may become corrosion points, […]
Installation Locations of Dual-Plate Check Valves on Ships
Dual-plate check valves are mainly installed in pipelines where the medium flows in one direction, preventing backflow and reducing water hammer impact. On ships, typical installation locations include: 1. Engine Room Systems Main Seawater Cooling System Installed between the sea chest valve and the seawater pump, or between the pump outlet and the cooler, to […]
Installation Locations of Concentric Butterfly Valves in Marine Applications
Concentric butterfly valves, also known as centerline butterfly valves, are widely used in marine piping systems due to their compact structure, light weight, quick operation, cost efficiency, and adaptability to various media. Below are the typical installation positions and application systems on ships: Common Installation Locations & Applications Ballast Water System Installed between ballast tanks […]
Difference Between Low Temperature Valves and Normal Temperature Valves in Marine Applications
In marine valve applications, low temperature valves and normal temperature valves are designed for different working conditions. Their main differences are as follows: Operating Temperature Range normal temperature valves are designed for media with temperatures ≥ -29°C (e.g. seawater, freshwater, fuel oil, compressed air). Low temperature valves are designed for extremely low temperatures ≤ -29°C, such as -46°C, -101°C, -196°C, used for LNG, LPG, liquid […]
Installation Position and Function of Marine Butterfly Valves on Ships
A marine butterfly valve is a common type of ship valve, widely used in various piping systems onboard. Below are its installation positions and functions on a ship: Installation Positions of Marine Butterfly Valves Butterfly valves are mainly used in locations where the pipe diameter is large, quick opening/closing is required, and installation space is limited. They […]
LRS Certificates in Marine Butterfly Valve
LRS Certificates in the context of marine butterfly valves refer to certifications issued by Lloyd’s Register of Shipping (LRS), a well-known maritime classification society. These certificates verify that the valves meet the standards required for marine applications, particularly for safety, reliability, and regulatory compliance. What Is an LRS Certificate? An LRS Certificate demonstrates that a product—like a butterfly […]
ABS Certification in Marine Butterfly Valves
In the field of marine butterfly valves, ABS certification is a crucial qualification for entering the international shipbuilding and offshore markets. Here’s a detailed overview of how ABS certification applies to marine butterfly valves: 1. What is ABS Certification? ABS (American Bureau of Shipping) is a globally recognized classification society that sets technical standards for the design, […]
DNV Certification in Marine Butterfly Valves
DNV certification plays a vital role in marine butterfly valves, signifying that the product complies with the standards set by Det Norske Veritas (DNV, formerly DNV-GL). It is a key requirement for entering the international shipbuilding and offshore engineering markets. 1. What is DNV Certification? DNV (Det Norske Veritas) is a world-leading classification society and risk […]