ORBITAL BALL VALVE
A. ORBITAL BALL VALVE FEATURES
Orbital Ball Valve
Orbital Ball Valve
Orbital Ball Valve

  1. Non-abrasion design for on off, which resolves the problem of mutual abrasion fully affecting sealing performance of sealing surface in the traditional valves.
  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. Single-seat design, which resolves those problems affecting safety caused by abnormal temperature-rise of the medium in the lumen of the valve.
  4. Low tensional moment design, with which the stem with structure designed specially could open or shut down with a merely small hand-wheel valve.
  5. 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. With 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.
  6. 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.

C. ORBITAL BALL VALVE-OPERATING PRINCIPLES
a. Rotate the hand-wheel clock- wisely while the valve stays at full-open state. 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.
b. Continuously rotate the hand-wheel, and then 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 clock -wisely with the stem.
c. 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.

d. Continue to rotate the hand-wheel, and then the again-descended stem would press the globe body mechanically to make it contact with the seat closely. Thus the sealing effect would be realized.

h. Continuously rotate the hand-wheel, as long as 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.




g. 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.
f. Continuously rotate the hand-wheel, hereafter the stem would bring along the globe body leave the seat w shiningly hile going-up.








e. 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.




D. ORBITAL BALL VALVE MAIN PARTS AND MATERIALS
Main types Accessory name Materials
GQ40Y/F/H
GQ41Y/F/H
Body, bonnet WCB ZG1Cr5Mo ZG1Cr18Ni9Ti ZG1Cr18Ni12Mo2Ti
Ball 2Cr13 1Cr18Ni9Ti 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti
Stem
Sealing surface Cemented Carbide Alloy steel
Guide finger 2Cr13   40CrMn
Stem nut Cast manganese brass
Bolt 35 1Cr18Ni9Ti
Nut 35   45
Stuffing PTFE    Graphite ring
Gasket Graphite wrapped-gasket     Graphite combined gasket
Handle Able to forge iron

E. ORBITAL BALL VALVE TECHNICAL SPECIFICATION
Design Reference GB API
Structural Length JB/T 7745  GB/T 12221 ANSI  B16.10
Connecting Flange GB/T 9113  JB/79  HG20592 ANSI  B16.5
Butt-welding ends GB/T 12224 MSS SP 44  ANSI  B16.25
Test & Inspection JB/T 9092 API 598

F. ORBITAL BALL VALVE PERFORMANCE SPECIFICATIONS OF THE PRODUCTS
Pressure grade Test pressure   Suitable environment
Shell test Sealing test
1.6 2.4 1.76 The occasions such as inflammable, easy to exploit, easy to volatilize, easy to get together, and hyper toxic occasion, etc.
2.5 3.75 2.75
4.0 6.0 4.4
6.4 9.6 7.04
Class 150 2.94 2.2
Class 300 7.5 5.5
Class 600 15.0 11.0
Applicable temperature -196℃~≤550℃
Applicable medium Water, oil, natural gas, all kinds of soft medium and suspension, etc.
Driving means Manual, Motor driving, Pneumatic

G. ORBITAL BALL VALVE MAIN FORM OF CONNECTION DIMENSIONS
Class Main
Dimension
Nominal diameter (mm)
25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500
PN1.6Mpa L 160 180 200 230 290 310 350 400 480 600 730 850 980 1100 1200 1250
H 24 260 307 360 410 483 412 543 581 617 672 723 758 791 828 870
Kg 09.5 16 19 28 30 41 55 78 115 215 270 385 502 876 980 1240
PN2.5Mpa L 160 180 200 230 290 310 350 400 480 600 730 850 980 1100 1200 1250
H 260 280 320 360 430 460 525 567 604 642 695 742 781 815 864 905
Kg 9.5 16 19 28 30 45 59 82 121 230 289 402 540 913 1120 1280
PN4.0Mpa L 160 180 200 230 290 310 350 400 480 600 730 850 980 1100 1200 1250
H 260 280 320 360 436 492 527 607 649 701 750 750 790 832 875 910
Kg 10 17 20 25 32 45 59 82 115 230 295 402 540 913 1124 1348
PN6.4Mpa L 160 180 200 230 290 310 350 400 480 600 730 850 980 1100 - -
H 280 300 329 365 450 509 541 663 725 781 790 806 821 858 - -
Kg 10 17 20 25 32 52 68 106 168 281 355 498 689 1134 - -
150Lb L 127 140 165 178 190 203 229 356 394 457 533 610 686 762 864 9147
300Lb L 165 178 190 216 241 283 305 381 403 502 568 648 762 838 914 991
600Lb L 216 229 241 292 330 356 432 508 559 660 787 838 889 991 1092 1194

The technical data subject to amend without notice