American standard flange ball valve Q41F

American standard flange ball valve Q41F

Ball valve (in the fields of marine engineering and shipbuilding, it should be a globe valve), defined in the standard GB/T21465-2008 "Valve Terminology" as a valve whose opening and closing member (ball) is driven by the valve stem and rotates around the axis of the ball valve. It can also be used for fluid regulation and control, among which the hard sealed V-shaped ball valve has strong shear force between its V-shaped core and the metal valve seat of the welded hard alloy, especially suitable for media containing fibers, small solid particles, etc. The multi way ball valve on the pipeline can not only flexibly control the merging, splitting, and switching of the flow direction of the medium, but also close any channel to connect the other two channels. This type of valve should generally be installed horizontally in pipelines. Ball valve classification: pneumatic ball valve, electric ball valve, manual ball valve.

One; wear-resisting; Due to the fact that the valve core of the hard sealed ball valve is made of alloy steel spray welded,

The sealing ring of the three piece ball valve is made of alloy steel overlay, so the hard sealed ball valve will not experience significant wear during opening and closing. (Its hardness coefficient is 65-70):

Two; Good sealing performance; Due to the fact that the sealing of the hard sealed ball valve is manually ground until the valve core and sealing ring are completely aligned before use. So his sealing performance is reliable.

Three; Light switch; Due to the use of a spring at the bottom of the sealing ring of the hard sealed ball valve to tightly hold the sealing ring and valve core together, the switch is very light when external forces exceed the pre tightening force of the spring.

Four; Long service life: It has been widely used in various sectors such as petroleum, chemical, power generation, papermaking, atomic energy, aviation, rockets, as well as in people's daily lives.

Pneumatic ball valves have a compact structure, reliable sealing, simple structure, and easy maintenance. The sealing surface and spherical surface are often in a closed state, which is not easily eroded by the medium and is easy to operate and maintain. They are suitable for general working media such as water, solvents, acids, and natural gas. They are mainly used to cut off or connect media in pipelines, and can also be used for fluid regulation and control.

Compared with other types of valves, pneumatic ball valves have the following advantages: angular stroke output torque, quick and stable opening, wide applicability, etc.

1. The thrust bearing reduces the friction torque of the valve stem, which can make the valve stem operate smoothly and flexibly for a long time.

2. Anti static function: Install springs between the ball, valve stem, and valve body to dissipate static electricity generated during the switching process.

3. Due to the good self-lubricating properties of materials such as polytetrafluoroethylene, the friction loss with the ball is small, resulting in a long service life for pneumatic ball valves.

4. Low fluid resistance: Pneumatic ball valves have the lowest fluid resistance among all valve classifications, even for reduced diameter pneumatic ball valves, their fluid resistance is quite small.

5. Reliable valve stem sealing: Due to the valve stem only rotating and not lifting, the packing seal of the valve stem is not easily damaged, and the sealing ability increases with the increase of medium pressure.

6. Good sealing performance of valve seat: The sealing ring made of elastic materials such as polytetrafluoroethylene is easy to seal, and the sealing ability of pneumatic ball valves increases with the increase of medium pressure.

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1、 A: Product name, model, nominal diameter B: Medium and temperature, pressure range C: Are there any accessories, delivery time, special requirements, etc. for us to correctly select for you.
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