ORBITAL BALL VALVE

Ball valve is a valve regulated by the position of a free-floating ball that moves in response to fluid or mechanical pressure.

ORBITAL BALL VALVE
FEATURES:

1. To resolves those problems affecting safety caused by abnormal temperature-rise of the medium in the lumen of the valve, the valve designed with Single-seat .

2. Uploading construction, with which the valves on pipelines could be checked online and repaired directly. Thus the engine's stopping could be minimized creatively to reduce the production cost.

3. Low tensional moment design specially with the stem could open or shut down with a merely small hand-wheel valve.

4. In order to resolves the problem of mutual abrasion fully affecting sealing performance of sealing surface in the traditional valves, the valve designed with Non-abrasion for on off

5. Self-purging construction of sealing surface. The fluid inside the pipeline would pass through evenly by 360?room, and along the sealing face on the globe body when the body leaves the seat shiningly. This design not only resolves the problem of scouring on parts on the valve seat by high-speed fluid but also washing away the piled-up matters on the surface to realize self-purging.

6. Wedge-type sealing construction. Traditionally, the valve would be sealed through the mechanical force provided by the stem to wedge-press the ball onto the valve seat. Through this design, the sealing performance of the valve would never be influenced by the fluctuation of the pressure difference in pipeline. And the performance would be maintained reliably under all the operating models.

OPERATING PRINCIPLES:

1.Frist, rotate the hand-wheel clock wisely . After the stem begins to move downwards and brings along the globe body to rotate under the concerted running of valve stem nuts and block bearing.

2. Rotate the hand-wheel in series, and then the cam-slot track with fine helical-curve would interact mutually with the guide finger embedded inside the track to drive right along the globe body rotate clock -wisely with the stem.

3. When the valve is about to shut-down, the stem would bring along the globe body to rotate for 90?rod; under the condition that the two parts bears no abrasion completely against the sealing surface of the seat.

4. Rotate the hand-wheel continuously, and then the again-descended stem would press the globe body mechanically to make it get in touch with the seat closely. Thus the sealing  wiould be effected .

5. Rotate the hand-wheel continuously , provided the stem rises to the limit position, at this time, the ball has also reversed along with the handle for 90?stem, and the valve has stayed already at the full-open position.

6. When the valve is about to open, the cam-slot track with fine helical-curve would interact mutually with the guide finger embedded inside the track to drive ceaselessly the globe body rotate counter clock-wisely under the conditions that the mentioned parts bears no abrasion completely against the sealing surface of the seat.

7. Continuously rotate the hand-wheel, then the stem would make the globe body leave the seat w shiningly hile going-up.

8. Rotate the hand-wheel counter-clock-wisely while the valve stays at the full-close position. Therefore the handle would go up and drive the globe body to rotate under the concerted work by the stem nuts of the valve and the block bearing.

TECHNICAL SPECIFICATION:

MAIN PARTS AND MATERIALS:

SPECIFICATIONS :

CONNECTION DIMENSIONS: