Q11F one-piece ball valve with internal thread lock,one-piece ball valve,Ball valve with lock, internal thread

Q11F A valve in which the ball is rotated around the center line of the body to open or close. It is mainly used to cut off, distribute and change the flow direction of the medium in the pipeline, and is suitable for water, oil, gas and some corrosive liquids in the temperature range of -20 ° C ~ 232 ° C ~ 350 ° C.

One-piece ball valve, two-piece internal thread ball valve, three-piece internal thread ball valve is a new type of valve that has been widely used in recent years.

Widely used in food, pharmaceutical, petrochemical, electric power, metallurgy and other industrial pipelines.

Product implementation standards:

1) Design and manufacturing standards: ASME B16.34, AFI608

2) Structure length standard: GB/T 12221-2005

3) Pipe thread connection end: ASME B1.20, BS21, DIN29999/259, BSP ISO7/1, ISO228/1, JISB02

4) Pressure temperature grade: GB/T 12224-2005

5) Test standard: GB/T 13927-2008

Design features:

The fluid resistance is small, the ball valve is one of the least fluid resistance of all valves, even if it is a reduced diameter ball valve, the fluid resistance is quite small;

② Quick and convenient switch, as long as the stem rotates 90o, the ball valve completes the full opening or full closing action, it is easy to achieve fast opening and closing;

③ Good sealing performance of the valve seat. Most ball valve sealing rings are made of elastic materials such as polytetrafethylene, soft sealing structure is easy to ensure opening and sealing, and the sealing force of ball valve increases with the increase of medium pressure;

④ Valve stem seal is reliable. When the ball valve is opened and closed, the valve stem only rotates without lifting. The packing seal of the valve stem is not easy to be damaged, and the sealing force of the valve stem reverse seal increases with the increase of the medium pressure.

⑤ Because polytetrafluoroethylene and other materials have good self-lubrication, small friction loss with the ball, so the ball valve has a long service life;

⑥ Can be configured with pneumatic, electric and other driving mechanisms to achieve remote control and automatic operation;

⑦ The channel in the valve body is smooth and smooth, which can transport viscous fluid, slurry and solid particles;

⑧ Easy to install, can be installed in any direction in any part of the pipeline.

Widely used in food, pharmaceutical, petrochemical, electric power, metallurgy and other industrial pipelines.

Packing of Standard Packing: 

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 470 gallon liquid totes Special package is available on request. E FORUs’  is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition

Q11F One-piece ball valve with lock internal thread working principle:

Opening procedure

In the closed position, the ball is pressed against the seat by mechanical pressure from the stem.

When the handwheel is turned counterclockwise, the stem moves in the opposite direction, and its bottom angular plane releases the ball from the seat.

The stem continues to lift and interacts with the guide pin in the spiral groove of the stem so that the ball begins to rotate without friction.

Until the full open position is reached, the stem is raised to the limit position and the ball is rotated to the full open position.

Closing procedure

When closed, turn the handle clockwise, the stem begins to drop and the ball begins to rotate away from the seat.

Continue to rotate the handwheel, the valve stem is subjected to the action of the guide pin embedded in its upper spiral groove, so that the valve stem and the ball rotate 90° at the same time.

When close, the ball has rotated 90° without contact with the seat.

For the last few turns of the handwheel, the angular plane at the bottom of the stem mechanically wedges towards the compression ball, pressing it tightly against the seat to achieve a complete seal.