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Lining Check Valve

Lining Check Valve is designated to valve which is automatically to hold back medium back flow through cut-off part(flap) with the help of medium force and it is applicable for wet chlorine, chlorine,lye, various acids, strong oxidants and other corrosive medium.Their basic structure can be divided into three types as follows:straight-lift, swing, vertical lift.

Committed to providing high-end valve solutions for high-risk and harsh working conditions. The company has accumulated a profound technical foundation in the fields of petrochemicals and chemical equipment, especially in the core advantages of special valves such as anti-corrosion and leak prevention.

Keyword：Lining Check Valve

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Product Description

SRUCTURAL FEATURES:
1.STRAIGHT-LIFT CHECK VALVE

Main types includes: fully lined H41F46 straight-lift check valve,lts structural features is that lined valve flap is perpendicular to the valve body inlet and outlet axis to do lifting movement.
2.VERTICAL LIFT CHECK VALVES

Main types includes: fully lined H42F46 vertical lift check valve, its structure characteristics is that lined valve flap is to do lifting movement along body path axis.
3.SWING CHECK VALVE

Main types includes: fully lined H74F46 and H44F46 with single valve flap swinging. ts structure type is that the valve flap is to rotate and open/close around shaft (pin) of outside valve seat and the medium back flow is prevented.Structure Features is that (pin) shaft and valve flap are designed as a entirety and fully lined (pin) shaft is beset between valve body and valve cover to form a special groove with flexible open/close and reliable sealing.

STANDARDS

DESIGN AND MANUFACTURING	Q/320621ABF09※、GB/T12233、GB/T12235、GB/T12236
LENGTH OF THE STRUCTURE	GB/T12221
CONNECTING FLANGE	JB/T79、HG20592、GB/T9113、ANSIB16.5(Oras per contract)
TEST AND INSPECTION	GB/T13927、API598、Sparkdetection
VALVE SYMBOL	GB/T12220
SUPPLY REQUIREMENTS	JB/T7928

※Enterprise standard is made out based on GB/T12233,GB/T12235,GB/T12236 standards lts various technical parameters is better than national standard on the aspect of material selection, structural design based entirely on medium corrosive properties and working conditions.

Bellows globe valves, fluorine lined valves, and special material valves are widely used in many industrial fields, especially in environments with strong corrosion and high-risk media, where their application is indispensable. These valves have unique advantages and can meet various harsh working conditions.
1、 Application and advantages of bellows globe valve
Bellows globe valves are mainly used in industrial fields such as petroleum, chemical, metallurgical, and power. Its advantages lie in:
1. The corrugated pipe design enables the valve to have excellent sealing performance, preventing medium leakage.
2. The on-off operation of the globe valve is convenient and the flow control is precise.
3. The corrugated pipe material is excellent, resistant to high pressure and corrosion, and has strong adaptability.
2、 Application and advantages of fluorine lined valves
Fluorine lined valves are widely used in industrial fields such as chemical, pharmaceutical, and environmental protection, especially for controlling highly corrosive media. Its advantages include:
1. Fluoroplastic lining has good corrosion resistance and can adapt to various highly corrosive media.
2. The valve operates stably, has a small opening and closing torque, and has a long service life.
3. Fluorine lined valves have good anti scarring and anti blocking performance.
3、 Application and advantages of special material valves
Special material valves are widely used in petroleum, chemical, pharmaceutical, food and other fields, especially suitable for high-risk media and extreme working conditions. Its advantages include:
1. Using special materials such as super stainless steel, titanium alloy, etc., it has extremely high corrosion resistance.
2. The valve has a compact structure and strong flow capacity, which can effectively reduce fluid resistance.
3. Special material valves have good fatigue resistance and can adapt to frequent operations and changing working conditions.
For high-risk media, special material valves can provide good safety performance and reduce the risk of leakage.
In summary, bellows globe valves, fluorine lined valves, and special material valves have a wide range of applications in industries such as petroleum, chemical, and pharmaceutical. They each have unique advantages and can work stably in environments with strong corrosion and high-risk media, ensuring production safety. With the continuous development of industrial technology, the application scope of these valves will further expand, making greater contributions to the development of various industrial fields.

Fluorine Lined cut off valve

Stainless steel fluorine lined cut off ball valve