Company News


Sedelon double disc parallel slide gate valve

Recently, Sedelon produced a large double disc parallel slide gate valve, 24inches 900LB, weighing over 7 tons. It can be used in high-temperature media, up to 400 degrees Celsius.

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Sedelon Valve- API Certificates

What a joy! We have renewed our valve certificate in 2023 and have more valve certificates.

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SEDELON Technical Data Sheet

Choosing the appropriate valve seat material is the most challenging decision in the selection of ball valves. SEDELON Ball valves are available in a variety of seat and sealing options for a variety of general and specialty services. Soft-seat ball valves are factory shut-off tested and built to last.

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Sedelon Pneumatic Ball Valve

Sedelon has recently produced a batch of ball valves with Rotork pneumatic actuators.

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Globe valve "flow from top to bottom" and "flow from bottom to top" types

The shut-off valve is designed for low inlet and high outlet, with the aim of reducing flow resistance and saving effort when opening the valve.

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Sedelon Bellows Sealed Globe Valve

Sedelon manufactures bellows sealed globe valve. It forms a metal barrier between the medium and the atmosphere through automatic roll welding to ensure zero leakage of the stem.

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Sedelon Large size dual plate check valve

A dual plate check valve is a type of check valve that consists of two spring-loaded plates that are hinged together and positioned within the valve body. When the fluid flows in the forward direction, the plates are pushed open, allowing the fluid to pass through. However, when the fluid flows in the reverse direction, the plates are forced shut by the pressure of the fluid, preventing backflow. This type of valve is commonly used in applications where backflow prevention is critical, such as in water treatment plants, oil and gas pipelines, and chemical processing plants.

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Sedelon Female Threaded Plug Valves

Sedelon received an order for over 1000 female threaded plug valves. The valve specifications are as follows: Body: ASTM A216 WCB Nominal Size: 2-1/2” Nominal Class: 300LB Connection ends: FNPT

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Basket Strainer-Made In Sedelon Valve

Sedelon Valve manufacturing custom basket strainer. The basket strainer is equipped with 2 sets complete gate valves as drain and vent valves, as well as handwheel, which can be opened directly to replace the screen. The basket strainer paint color is RAL9006, corrosion resistant.

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Types and Selection of Pneumatic Valve Accessories

During the use of pneumatic valves, it is usually necessary to configure some accessories to improve the performance of pneumatic valves or improve the use efficiency of pneumatic valves. Common accessories of pneumatic valve include air filter, solenoid valve, limit switch, electric positioner, etc. In pneumatic technology, the combination of air filter, pressure reducing valve and oil atomizer is called pneumatic triplet.

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API600 Standard Valves Seating Surface Material Classification and Characteristics

Valves seating surface performance has direct affection on the valve service life, due to it’s easily damaged by corrosion, erosion and wear of the medium during the continual opening and closure operation. The basic requirements for the seating surface is to ensure the sealing performance safe and reliable under the specified working condition.Below are the basic characteristics that a suitable seating surface should possess

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Sedelon Valve Knowledge Science - Insulated Valve

When the medium is steam and hot water, it need to pay special attention to valves insulation measures.

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