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Corrosion Prevention Methods for WCB Material Valve Bodies in Marine Valves
WCB material (carbon steel castings) is prone to corrosion in certain environments, especially in marine applications. To enhance the service life of WCB valves, effective corrosion prevention methods are necessary. Here are some common approaches: 1. Cathodic Protection Principle:Install sacrificial anodes (e.g., zinc or magnesium blocks) on the valve body to protect it from corrosion […]
Corrosion Resistance of Marine Butterfly Valves
The corrosion resistance of marine butterfly valves is a critical factor in their selection and application, especially in marine environments. Due to the presence of salt spray, high humidity, and seawater’s corrosive nature, marine equipment requires superior corrosion-resistant properties. Below are key aspects related to the corrosion resistance of marine butterfly valves: 1. Material Selection […]
Shaft Materials in Marine Valve
Shafts in marine valves are critical components that connect the actuator or handwheel to the valve’s internal components, allowing for control of fluid flow. The material selection for marine valve shafts depends on the application, operating environment, and fluid type. Common shaft materials in marine valve applications include: 1. Stainless Steels Grade 316/316L: High corrosion […]
Rubber Seats in Marine Butterfly Valves
Rubber seats are widely used in marine butterfly valves, particularly in the design of centerline butterfly valves. These rubber seats offer excellent sealing performance, prevent medium leakage, and resist corrosion and wear in the marine environment. Below are some key characteristics and applications of rubber seats in marine butterfly valves: 1. Excellent Sealing Performance Due […]
The Booming Development of China’s Shipbuilding Industry
China’s shipbuilding industry has experienced remarkable growth in recent years, establishing itself as a global leader. Several key factors are driving this rapid expansion: Policy Support: The Chinese government has provided strong policy support to the shipbuilding industry, viewing it as a vital strategic sector, particularly under initiatives like the “Belt and Road” and “Maritime […]
Disc Materials of Butterfly Check Valve（dual plate check valve)
The disc of a butterfly check valve plays a crucial role in controlling the flow of fluids by pivoting on a central axis to either open or close the valve. Depending on the application, pressure, and the fluid being handled, different materials are used for manufacturing the disc. Below are common materials used for butterfly […]
Body Materials of Butterfly Check Valve
Butterfly check valves, used to prevent backflow in piping systems, are made from various materials depending on the application, fluid type, and operating conditions. The most common body materials for butterfly check valves include: Cast Iron: Usage: Often used in general water applications, HVAC, and non-corrosive fluid systems. Properties: Economical, good strength, and durability, but prone to […]
Feature of Concentric Type Butterfly Valve with Carbon Steel Body
A concentric butterfly valve with a carbon steel body is a common type of valve used in industrial applications for regulating or isolating the flow of fluids. The concentric design means that the valve disc and stem are aligned on the same axis, making it suitable for low-to-moderate pressure applications. Below are the key features […]
Concentric type Butterfly Valve with Ductile Iron Body and Bronze Disc
A Concentric Type Butterfly Valve with a Ductile Iron Body and Bronze Disc is a reliable and versatile valve used for controlling fluid flow in various applications. Here’s a breakdown of its features: Key Features: Body Material: Ductile Iron Ductile iron is a strong and durable material with excellent mechanical properties, including good tensile strength, […]
Maintenance of the Concentric type Butterfly Valve in Ships
The maintenance of a concentric (centered) butterfly valve in ships is essential to ensure the valve’s optimal performance and longevity, especially in harsh marine environments. Concentric butterfly valves have the disc located in the center of the valve body, with a resilient seat that helps to seal the valve when closed. These valves are commonly […]