Split body reduce bore trunnion mounted ball valve have two piece and three piece body structure.middle part is bolt connection, RPTFE seal insert into stainless steel ring with spring .keep good sealling...
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The eccentric semi-spherical valve installed at the top consists of an eccentric valve body, an eccentric ball, and a seat. When the valve stem is rotated, it automatically closes along a common centerline, with the sealing effect improving as the degree of closure increases. The valve seat and the ball are completely independent, preventing wear on the seal ring and addressing the frequent wear issues between the seat and the ball in traditional ball valves. Non-metallic elastic material is embedded within the metal seat, providing excellent protection for the metal surface. This product is particularly suitable for media such as steel, aluminum, fibers, small solid particles, pulp, coal ash, and petroleum gas.
● Its structure adopts the principle of eccentric wedge to realize the purpose of adjusting and closing through the transmission mechanism: the sealing pair is a metal surface ring with a hard contact seal. When the double eccentric structure is located in the ball storage chamber, the flow section is large and the valve is not washed. When closed, the spool is not washed off. When opening, the valve core sphere gradually moves along the valve seat, effectively eliminating scaling obstacles and realizing reliable seal.
● The hemisphere of the valve: made of bimetallic with different alloys deposited on the substrate. The valve seat also has the corresponding surface and special treatment. The sealing surface group is composed of various types, such as corrosion prevention, wear resistance, high strength and so on, to meet the needs of different occasions
● Seal: zero leakage of conveying harmful gas
● Seal the pair of the remaining compensation: when the valve wear, turn a little more, can be reliably sealed, prolong its service life.
| Item | Part. Name | Material |
| 1 | Bonnet | PE |
| 2 | Extension pipe | st37 |
| 3 | Body | st37 |
| 4 | Flat washer | st37 |
| 5 | Butterfly Spring | 60Si2MnA |
| 6 | Ball seat | SS202 |
| 7 | O-ring | EPDM |
| 8 | Ball washer | PTFE+20%C |
| 9 | Ball | SS304 |
| 10 | Stem washer | PTFE+20%C |
| 11 | Stem sleeve | st37 |
| 12 | Stem | SS410 |
| 13 | Stem ring | PTFE+20%C |
| 14 | Stem O-ring | FPM |
| 15 | Sleeve | st37 |
| 16 | Positioning PIN | ASTM1035 |
| 17 | Handle | st37 |
| 18 | Washer | Q235A |
| 19 | Nut | Q235A |
| 20 | Handle cap | ABS |
Main Dimensions
| Size | in | 2 | 2 1/2 | 3 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 | 26 | 28 | 30 | 32 | 36 |
| mm | 50 | 65 | 80 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 650 | 700 | 750 | 800 | 900 | |
| L(RF) | in | 7 | 7.5 | 8 | 9 | 15.5 | 18 | 21 | 24 | 27 | 30 | 34 | 36 | 42 | 45 | 49 | 51 | 54 | 60 |
| mm | 178 | 190 | 203 | 229 | 394 | 457 | 533 | 610 | 686 | 762 | 864 | 914 | 1067 | 1143 | 1245 | 1295 | 1372 | 1524 | |
| L1(BW) | in | 8.5 | 9.5 | 11.12 | 12 | 18 | 20.5 | 22 | 25 | 30 | 33 | 36 | 39 | 45 | 49 | 53 | 55 | 60 | 68 |
| mm | 216 | 241 | 283 | 305 | 457 | 521 | 559 | 635 | 762 | 838 | 814 | 991 | 1143 | 1245 | 1346 | 1397 | 1524 | 1727 | |
| H | in | 7 | 7.5 | 8.25 | 9.25 | 20.88 | 24.62 | 25.62 | 30.75 | 31 | 36.25 | 38.25 | 43.38 | 5.25 | 50.75 | 55.12 | 64.12 | 70.88 | 80.75 |
| mm | 177 | 190 | 210 | 235 | 530 | 625 | 650 | 780 | 790 | 920 | 970 | 1100 | 1150 | 1290 | 1400 | 1630 | 1840 | 2050 | |
| W | in | 14 | 16 | 20 | 20 | 24 | 24 | 24 | 24 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 |
| mm | 350 | 400 | 500 | 500 | 600 | 600 | 600 | 600 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | |
| WT(Kg) | RF | 15 | 19 | 27 | 38 | 81 | 140 | 160 | 205 | 260 | 390 | 510 | 750 | 1200 | 1400 | 1860 | 2100 | 2530 | 2970 |
| BW | 13.5 | 15.5 | 24.5 | 32.5 | 76 | 132 | 147 | 182 | 241 | 370 | 495 | 726 | 1125 | 1250 | 1640 | 1930 | 2390 | 276 |
| Type | Nominal pressure(MPa) | Testing pressure | Suitable temperature(°C) | Suitable medium | |
| Strength (water) (MPa) | Enclose (Water) (MPa) | ||||
| Q41 /61 H-16C | 1.6 | 2.4 | 1.76 | -40~200ºC | Water,Vapour,Oil |
| Q41 /61 H-25C | 2.5 | 3.75 | 2.5 | ||
Q1:What is the main suitable of this valve?
This product is particularly suitable for media such as steel, aluminum, fiber, small solid particles, pulp, coal ash, petroleum gas, etc.
Q2:What type of seating is used?
Non metallic elastic materials are embedded in the metal seat, and the metal surface of the valve seat is well protected.
The overhead eccentric hemisphere valve with advanced sealing technology ensures excellent sealing performance under various working conditions and effectively avoids leakage phenomenon. Its full path design allows the fluid to pass smoothly, reducing the pressure loss and thus improving the efficiency of the entire system. In addition, the valve selection of high-quality materials, and after fine processing and precision treatment, to ensure its wear resistance and corrosion resistance, and then prolong the service life.
