Shanghai kangquan Valve Co. Ltd.
Shanghai KangQuan Valve Co. Ltd. Best Resilient Seated Gate Valve Supplier
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Remote Control Floating Ball Valve For Water , Oil Products , Natural Gas
Floating Ball Valve Brief introduction:
Trunnion Mounted ball valves mainly used in the industries of natural gas, oil products, chemicals,
metallurgy, urban construction, environmental protection, pharmaceuticals, foodstuff and etc.
Floating Ball Valve Structural features:
1. Distinctive seating structure
according to the extent of pressure, medium properties and sealing requirements, fixed ball valve
may be made to front seal structure, back structure, or front-back dual seal structure.
2. Self-relieving structure
In case of abnormal rise of pressure at middle cavity, ball valve of single seal structure is provided
with selfrelieving function, while ball valve of dual seal structure uses the auxiliary pressure relief
device on valve body to carry out pressure relief.
3. Fire protection structure
If requested by working conditions and users, ball valve may be designed to fireproof. The fireproofing
design of ball valve is to the standards of API 607 and JB/T6899. In case of soft seal ring burnt in fire,
the fire protection structure of ball valve functions to prevent mediums from mass leakage, thus to avoid
fire spreading.
4. Antistatic structure
when operating the valve, the friction between the ball and seat will produce electrostatic charge that
can be accumulated on the ball. To prevent static spark, an antistatic device is placed on the valve to
derive the electric charge accumulated on the ball(as show in the figure)
5. Lock device
To prevent misoperation and the unexpected open or closed caused by the unpredicted circuit vibration,
a locking device is designed at the fully opened and closed positions of hand operated ball valve. This
design is proven especially good and effective in the production line of inflammable mediums of petroleum
and chemicals, or when valves are mounted outdoors.
6. Discharge device on valve body
If requested by users or by the system, discharge valve may be mounted on the body of ball valve. In
case the two ends of valve have been sealed, the pressure in valve will be released through the
discharge valve on the body. Besides the function of DBB, this discharge valve also functions to rinse
and blow out the deposits inside valve body.
7. Corrosion resistance
corrosion allowance is left for the design of body thickness, the stem, fixed shaft, ball, seat and bottom
cover of carbon steel valve are all chemical plated in surface to ASTM B733 and B656. Use of paint from
international co. to deal with all kinds of conditions.
8.Sulfide stress cracking resistance
the materials exposed to fluid of our sulfur resisting ball valves, including fastening components, are all
selected to NACE MR0175. Rigorous quality control and inspection is implemented in the manufacturing
process to make our products conformed to the standard and suitable for vulcanizing conditions.
Floating Ball Valve Parameters
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|
| Material | ||||
| No. | part name | Carbon steel series | Stainless steel series | Low temperature steel series | resist sulfur series | |
|
|
| GB standard | NACE standard | |||
| 1 | ball | A105+ HCr/ENP | A351 CF8, CF8M,CF3,CF3M | A352 LCB, LCC+ENP | A105+HCr/ENP | A351 CF8M+ENP |
| 2 | bushing | Metal + PTFE; sinter carbon fiber | ||||
| 3 | seal ring | PTFE, RPTFE, sinter carbon fiber, macromolecule polymer nylon, MOLON,DELRIN or PEEk | ||||
| 4 | seat | A105+ HCr/ENP | A182,F304,F316 | A182,F6a | A105+HCr/ENP | A182,F316 |
| 5 | O ring | Fluorin rubber | ||||
| 6 | fireproofing gasket | Flexible graphite + stainless steel | ||||
| 7 | support ring | A105+ HCr/ENP | A182,F304,F316 | A182,F6a | A105+HCr/ENP | A182,F316 |
| 8 | Spring | INCONEL 750 | ||||
| 9 | O ring | Fluorin rubber | ||||
| 10 | Grease valve | Same as body material | ||||
| 11 | Washer | Flexible graphite + stainless steel | ||||
| 12 | Bonnet | A216 WCB | A351 CF8,CF8M, CF3,CF3M | A352 LCB,LCC | A216 WCB | A351 CF8M |
| 13 | Stud | A193 B7 | A193 B8,B8M | A 320 L7 | A193 B7M | A193 B7M |
| 14 | Nut | A194 2H | A194 8M | A194 4 | A194 2HM | A194 2HM |
| 15 | Stud | A193 B7 | A193 B8,B8M | A 320 L7 | A193 B7M | A193 B7M |
| 16 | Bolt | A105+ HCr/ENP | A182,F304,F316 | A182,F6a | A105+HCr/ENP | A182,F316 |
| 17 | Washer | PTFE | RPTFE |
| Copper | RPTFE |
| 18 | Stud | A193 B7 | A193 B8,B8M | A 320 L7 | A193 B7M | A193 B7M |
| 19 | Small ball | A182 F304 | ||||
| 20 | Under cover | A105+ HCr/ENP | A182,F304,F316 | A182,F6a | A105+HCr/ENP | A182,F316 |
| 21 | Washer | Flexible graphite + stainless steel | ||||
| 22 | O ring | Fluorin rubber | ||||
| 23 | Grease valve | Same as body material | ||||
| 24 | Body | A216 WCB | A351 CF8,CF8M, CF3,CF3M | A352 LCB,LCC |
| A351 CF8M |
| 25 | bushing | Metal+ PTFE; sinter carbon fiber | ||||
| 26 | Discharger valve | Same as body material | ||||
| 27 | Spring | A 182 F304 | ||||
| 28 | key | GB/T699 45 | ||||
| 29 | Stem | A182 F6a | A182,F304,F316 | A182,F6a | A182 F304 | A182 F304 |
| 30 | bearing | Metal+ PTFE; sinter carbon fiber | ||||
| 31 | O ring | Fluorin rubber | ||||
| 32 | Washer | Flexible graphite + stainless steel | ||||
| 33 | stem seat | A105+ HCr/ENP | A182,F304,F316 | A182,F6a | A105+HCr/ENP | A182,F316 |
| 34 | Stud | A193 B7 | A193 B8,B8M | A 320 L7 | A193 B7M | A193 B7M |
| 35 | Packing | Flexible graphite, PTFE | ||||
| 36 | Packing bushing | A182 F6 | A182,F304,F316 | A182 F304 | A182 F6 | A182 F316 |
| 37 | Gland | A216 WCB | A351 CF8,CF8M | A351 CF8 | A216 WCB | A351 CF8M |
| 38 | Stud | A193 B7 | A193 B8,B8M | A 320 L7 | A193 B7M | A193 B7M |
| 39 | Stud | A193 B7 | A193 B8,B8M | A 320 L7 | A193 B7M | A193 B7M |
| 40 | Yoke | A216 WCB | A351 CF8 | A352 LCB | A216 WCB | A351 CF8M |
| 41 | Stud | A193 B7 | A193 B8,B8M | A 320 L7 | A193 B7M | A193 B7M |
| 42 | Driver device | Pneumatic, Electric, Worm gear, Hydraulic operated | ||||
Pressure; PN1.6MPa CLASS150
| Size | L | d | Manual | Worm operator | Pneumatic operator | Electric operator | ||||||||||||
| DN | NPS | RF | WE | RJ | M | Mo | B | Bo | B1 | B2 | A | A1 | A3 | A4 | D | D1 | Do | |
| 50 | 2" | 178 | 216 | 191 | 49 | 107 | 230 | / | / | / | / | 217 | 174 | 89 | 181 | / | / | / |
| 65 | 2-1/2" | 191 | 241 | 203 | 62 | 125 | 400 | / | / | / | / | 308 | 248 | 148 | 257 | / | / | / |
| 80 | 3" | 203 | 283 | 216 | 74 | 152 | 400 | / | / | / | / | 318 | 258 | 148 | 257 | / | / | / |
| 100 | 4" | 229 | 305 | 241 | 100 | 178 | 650 | / | / | / | / | 407 | 322 | 287 | 287 | / | / | / |
| 125 | 5" | 356 | 381 |
| 125 | 252 | 1050 | / | / | / | / | 480 | 395 | 287 | 287 | / | / | / |
| 150 | 6" | 394 | 457 | 406 | 150 | 272 | 1050 | 378 | 400 | 200 | 106 | 562 | 457 | 378 | 378 | 554 | 337 | 508 |
| 200 | 8" | 457 | 521 | 470 | 201 | / | / | 421 | 400 | 200 | 108 | 700 | 595 | 378 | 378 | 606 | 421 | 508 |
| 250 | 10" | 533 | 559 | 546 | 252 | / | / | 482 | 400 | 200 | 108 | 735 | 630 | 378 | 378 | 667 | 482 | 508 |
| 300 | 12" | 610 | 635 | 622 | 303 | / | / | 549 | 600 | 330 | 144 | 858 | 728 | 530 | 530 | 734 | 549 | 508 |
| 350 | 14" | 686 | 762 | 699 | 334 | / | / | 582 | 600 | 330 | 144 | 1013 | 883 | 530 | 530 | 784 | 582 | 508 |
| 400 | 16" | 762 | 838 | 775 | 385 | / | / | 687 | 800 | 370 | 220 | 1319 | 1154 | 680 | 680 | 889 | 687 | 508 |
| 450 | 18" | 864 | 914 | 876 | 436 | / | / | 730 | 800 | 370 | 220 | 1389 | 1224 | 680 | 680 | 981 | 730 | 305 |
| 500 | 20" | 914 | 991 | 927 | 487 | / | / | 772 | 800 | 370 | 220 | 1459 | 1294 | 680 | 680 | 1023 | 772 | 305 |
| 600 | 24" | 1067 | 1143 | 1080 | 589 | / | / | 995 | 800 | 515 | 279 | 1060 | 915 | 1455 | 1455 | 1268 | 995 | 305 |
| 650 | 26" | 1143 | 1245 |
| 633 | / | / | 1022 | 800 | 515 | 279 | 1234 | 1089 | 1455 | 1455 | 1334 | 1071 | 305 |
| 700 | 28" | 1245 | 1346 |
| 684 | / | / | 1088 | 800 | 515 | 279 | 1140 | 980 | 1665 | 1665 | 1459 | 1155 | 305 |
| 750 | 30" | 1295 | 1397 |
| 735 | / | / | 1153 | 800 | 515 | 279 | 1195 | 1035 | 1665 | 1665 | 1515 | 1211 | 305 |
| 800 | 32" | 1372 | 1524 |
| 779 | / | / | 1223 | 800 | 570 | 368 | 1338 | 1149 | 1960 | 1960 | 1649 | 1316 | 458 |
| 850 | 34" | 1473 | 1626 |
| 830 | / | / | 1307 | 800 | 570 | 368 | / | / | / | / | 1694 | 1361 | 458 |
| 900 | 36" | 1524 | 1727 |
| 874 | / | / | 1374 | 800 | 570 | 368 | / | / | / | / | 1766 | 1433 | 458 |
| 1000 | 40" | 1753 | 1956 |
| 976 | / | / | 1468 | 960 | 575 | 220 | / | / | / | / | 1854 | 1521 | 458 |