Check Valve Installation Precautions

Check valve which maybe from DIN Lift Check Valve Supplier refers to the valve that automatically opens or closes the valve by the flow of the medium itself, and is used to prevent the backflow of the medium. Check valves are automatic valves. General installation of check valve should pay attention to the following:

1. Do not make the check valve which maybe from DIN Lift Check Valve Supplier bear weight in the pipeline. Large check valves should be independently supported so that they are not affected by the pressure generated by the pipeline system.
2. Note that the direction of flow of medium should be the same as the arrow marked on the valve body when installing.
3. The lifting vertical disc check valve shall be installed on the vertical pipe.
4. The lifting horizontal disc check valve shall be installed on the horizontal pipe.
As a China Casting Valve Suppliers, we supply check valve and casting valve. If you have demand about our product, welcome to our webiste!

 

Advantages, Disadvantages And Types of Valve Gate

As a China Gate Valve Suppliers, Today we'll talk about valve gate.

Advantages of gate valve:

1. The fluid resistance is small, and the sealing surface is subject to erosion and erosion of medium.

Two, open close more labor-saving.

The flow direction of medium is free from restriction, disturbance and pressure reduction.

Iv. Simple in shape, short in structure, good in manufacture technology and wide in application.

Disadvantages of gate valve:

One, between the sealing surface easy to cause erosion and abrasion, maintenance is more difficult.

Second, the external dimension is large, opening needs certain space, opening and closing time is long.

Third, the structure is complex.

Type of valve gate which maybe be from China DIN Gate Valve supplier:

According to the sealing surface configuration, it can be divided into wedge type gate valve and line type gate valve, and wedge type gate valve can be divided into single gate type, double gate type and elastic gate type. Parallel gate valves can be divided into single and double gate types. According to the screw position of the stem, it can be divided into two types: open and dark.

In fact, we are aslo . Welcome to our website know more details!

How The Butterfly Valve Works

Today Yuanda lalve which is the Gost Gate Valves Exporter will give you a popular science butterfly valve working principle.

Butterfly valve, also known as the plate valve, is often used in the furnace, gas, natural gas, liquefied petroleum gas, hot and cold air, chemical smelting and other engineering systems to transport a variety of corrosive, non-corrosive fluid medium pipeline, for the regulation and truncation of medium flow.

 

How the butterfly valve works

As a China Famous Butterfly Valve supplier, We know The butterfly valve is a kind of valve which USES the round disc as the opening and closing part and turns with the stem to open, close and regulate the flow channel. Butterfly valve disc installed in pipe diameter direction.

Cylindrical channels in butterfly valve body, disc disc around the axis of rotation, rotation Angle for 0 ° ~ 90 °, rotate to 90 °, the valve is fully open. Change the deflection Angle of the plate to control the flow of media.

We are China Top Industrial Valves Brand. Please consult us for more information.

What Do You Know About Ball Valves?

Ball valve such as High Temperature Ball Valves China is not only simple in structure, good sealing performance, but also in a certain nominal diameter range smaller volume, light weight, less material consumption, small installation size, and small driving torque, easy to operate, easy to achieve quick opening and closing, is one of the fastest growing valve varieties in recent decades.

1. For the main pipeline of oil and natural gas, the ball valve with full diameter and welding structure shall be selected; For buried in the ground, select the ball valve with all-diameter welding connection or flange connection; Branch pipe, select flange connection, welding connection, full size or reduced ball valve.

For transportation pipeline and storage equipment of finished oil, ball valves with flange connection shall be selected.

For urban gas and natural gas pipelines, use floating ball valves with flange connection and internal screw connection.

The oxygen pipeline system in metallurgical system should be strictly removed

V. low temperature ball valve with cover should be selected on pipeline system and device of low temperature medium.

The lifting rod ball valve such as Gost Ball Valves can be used in the pipeline system of the catalytic cracking unit of oil refining plant.

What Do You Know About Globe Valves?

Globe valves such as DIN angle type Globe Valve, also known as gate valves, are mandatory sealed valves, so when the valve closes, pressure must be applied to the disc to force the sealing surface not to leak. When the medium enters the valve from the bottom of the disc, the resistance to be overcome by the operating force is the friction of the stem and packing and the thrust generated by the pressure of the medium. There are three types of connection methods: flange connection, thread connection and welding connection. After the appearance of the self-sealing valve, the medium flow direction of the globe valve will enter the valve chamber from above the disc. At this time, under the pressure of medium, the pressure of closing the valve is small, while the pressure of opening the valve is large, and the diameter of the stem can be reduced accordingly. At the same time, under the medium action, the valve of this form is also more rigorous. Our country valve "3 change give" once regulation, stop the flow direction of the valve, adopt from top to bottom. When the globe valve is opened, the height of the disc is 25% ~ 30% of the nominal diameter. So the full open position of the globe valve should be determined by the stroke of the disc.

We are valve supplier, providing high quility valve such as JIS 10K Non-rising Stem Gate Valve. If you are interested, welcom to conact us.