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Self sealing high pressure gate valve
Self sealing high-pressure gate valve is made of steel, consisting of a body, a valve device and a cover. The entire structure is compact and reliable, easy to install and replace without any maintenance.
eProduct introduction:
Self sealing high-pressure gate valve is a kind of hydraulic transmission device, which automatically stops on the upper gate valve in the form of hydraulic valve and hydraulic seat), including hydraulic gate valve and hydraulic valve (hydraulic gate), its hydraulic ring and hydraulic valve including hydraulic valve (hydraulic valve). The products of the oil plant and other four chemical products are widely used in the chemical industry, natural gas manufacturing, oil refining and other heavy industrial fluid transportation.
Self sealing means that the valve will seal under automatic pressure, which is very beneficial for applications such as low temperature or mud service. The product has a steel system, stainless steel body, valve / gold / stainless steel disc, and plastic seat for valve cover.
Self sealing gate valve is a kind of gate valve, which is installed in high-pressure liquid or gas pipeline and has automatic closing function. Under normal conditions, it is closed with the help of spring force. When the pipeline is overloaded, the self sealing will immediately release and close the valve to ensure safety. The self sealing valve is widely used in oil refining, steel making, coal mining and other large industrial plants. In the plant, the rendering material of one pressure vessel per time can be used at any time.
Product advantages:
The self sealing high-pressure gate valve is applicable to the sealing working pressure above 50MPa and has good sealing performance. It adopts sealing pressure and has excellent sealing performance. As a sealing film, it has good sealing performance under high pressure and high pressure. It has the advantages of small volume, light weight, convenient installation and maintenance.
The self sealing gate capability is a valve with high-pressure one-way sealing capability, its direction, its self sealing characteristic, and the self closing characteristic for flow control without leakage. Applications include steam piping, quenching heat treatment furnace heating equipment systems, and power and water and chemical industry equipment systems.
Product design:
Gate valves are designed to provide tight outlet fractures and stability in high pressure applications. The self sealing function allows the door to seal automatically when closed, even on restricted or piping. Through our custom design service, you can provide end rotation at the valve position.
Self sealing high-pressure gate valve structure, good sealing effect, easy to operate and maintain. Its structure forms a combined valve for hot water supply with medium pressure drop. It can prevent the valve from appearing in case of water leakage when the water pressure changes; No special maintenance is required. If it is damaged by external forces or other reasons, it is easy to install and replace; The product can provide safe cold water or hot water protection.
The self high pressure valve is designed to be installed at the gate of the pipeline wellhead and other equipment. Under the action of pressure difference, the valve rod is sealed, and the valve is hydraulically pulled and sealed. One or more valve seats corresponding to the closable can be achieved positively.
Self sealing gate valves are designed to prevent leakage. Even if the test element has other valves closing or releasing pressure, the external sealing performance of the internal valve seat can become the valve rod through the pressure gauge or valve head. And a special structure of an integral part of the valve body to strengthen.
Butt welded end: ANSI B16.25
Test and inspection:GOST9544
Standard Material Specifications
| NO. | Part Name | WCB | WC6 | WC9 | C5 | CF8 | CF8M |
|---|---|---|---|---|---|---|---|
| 1 | Body | A216 WCB | A217 WC6 | A217 WC9 | A217 C5 | A351 CF8 | A351 CF8M |
| 2 | Seat Ring | A182 F6a | A182 F22 | A182 F22 | A182 F5 | A182 F304 | A182 F316 |
| 3 | Disc | A216 WCB | A217 WC6 | A217 WC9 | A217 C5 | A351 CF8 | A351 CF8M |
| 4 | Stem | A182 F6a | SAEHNV3 | A182 F304 | A182 F316 | ||
| 5 | Stuffing Box | A216 WCB | A217 WC6 | A217 WC9 | A217 C5 | A351 CF8 | A351 CF8M |
| 6 | Seal Ring | AISI 316L | Flexible Graphite + 316 | ||||
| 7 | Split Ring | Steel | F6 | F6 | F6 | F304 | F316 |
| 8 | Back Ring | Steel | Steel | Steel | Steel | S.S. | S.S. |
| 9 | Bolt | A193 B7 | A193 B7 | A193 B7 | A193 B7 | A193 B8 | A193 B8 |
| 10 | Nut | A194 2H | A194 2H | A194 2H | A194 2H | A194 Gr. 8 | A194 Gr. 8 |
| 11 | Yoke | A216 WCB | A217 WC6 | A217 WC9 | A217 C5 | A351 CF8 | A351 CF8M |
| 12 | Bolt | A193 B7 | A193 B7 | A193 B7 | A193 B7 | A193 B8 | A193 B8 |
| 13 | Nut | A194 2H | A194 2H | A194 2H | A194 2H | A194 Gr. 8 | A194 Gr. 8 |
| 14 | Packing Plate | AISI 410 | AISI 410 | AISI 410 | AISI 410 | AISI 304 | AISI 316 |
| 15 | Packing | Flexible Graphite (Braided and Ring) or PTFE | |||||
| 16 | Split Pin | Steel | Steel | Steel | Steel | Steel | Steel |
| 17 | Eyebolt | A193 B7 | A193 B7 | A193 B7 | A193 B7 | A193 B8 | A193 B8 |
| 18 | Gland | A182 F6 | A182 F6 | A182 F6 | A182 F6 | A182 F304 | A182 F316 |
| 19 | Gland Flange | A105 | A105 | A105 | A105 | A182 F304 | A182 F316 |
| 20 | Nut | A194 2H | A194 2H | A194 2H | A194 2H | A194 Gr. 8 | A194 Gr. 8 |
| 21 | Stud | A193 B7 | A193 B7 | A193 B7 | A193 B7 | A193 B7 | A193 B7 |
| 22 | Stem Nut | Ni-resist A439-D2 | |||||
| 23 | Gear Box | Pu, rchased | |||||
| 24 | Protector | Steel | |||||
| 25 | Nameplate | AISI 304 | |||||
| 26 | Rivet | AISI 304 | |||||
Other materials are available on request
Test Pressure to ANSI
| Class | Shell Test (Hydrostatic) | Seat Test (Hydrostatic) | Seat Test (Air) |
|---|---|---|---|
| 900lb | 3350psi | 2442psi | 80psi |
| 1500lb | 5626psi | 4078psi | 80psi |
| 2500lb | 9275psi | 6787psi | 80psi |
Dimensions(mm) and Weights(Kg)
| NPS | Class | 2 | 2-1/2 | 3 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DN | 50 | 65 | 80 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 550 | ||
| L(RF) | 900LB | 368 | 419 | 381 | 457 | 610 | 737 | 838 | 965 | 1029 | 1130 | ||||
| 1500LB | 368 | 419 | 470 | 546 | 705 | 832 | 991 | 1130 | 1257 | 1384 | |||||
| 2500LB | 451 | 508 | 578 | 673 | 917 | 1022 | 1270 | ||||||||
| L1(BW) | 900LB | 216 | 254 | 305 | 355 | 508 | 660 | 787 | 914 | 991 | 1092 | ||||
| 1500LB | 216 | 254 | 305 | 406 | 559 | 711 | 864 | 991 | 1067 | 1194 | 1346 | 1473 | 1600 | ||
| 2500LB | 279 | 330 | 368 | 457 | 610 | 762 | 914 | 1041 | 1118 | 1245 | 1397 | ||||
| L2(RTJ) | 900LB | 371 | 422 | 384 | 460 | 613 | 740 | 841 | 968 | 1038 | 1140 | ||||
| 1500LB | 371 | 422 | 473 | 549 | 711 | 841 | 1000 | 1146 | 1276 | 1407 | |||||
| 2500LB | 454 | 514 | 584 | 683 | 927 | 1038 | 1292 | ||||||||
| H(Open) | 900LB | 554 | 637 | 680 | 796 | 1084 | 1372 | 1494 | 1550 | 1960 | 2210 | ||||
| 1500LB | 554 | 637 | 767 | 875 | 1094 | 1372 | 1655 | 1843 | 2150 | 2260 | 2460 | 2721 | 2940 | ||
| 2500LB | 610 | 654 | 753 | 850 | 1254 | 1374 | 1685 | 1894 | 2226 | 2382 | 2585 | ||||
| W | 900LB | 300 | 350 | 350 | 400 | 560 | 460* | 610* | 610* | 610* | 760* | ||||
| 1500LB | 300 | 450 | 450 | 560 | 305* | 460* | 610* | 610* | 760* | 760* | |||||
| 2500LB | 500 | 500 | 600 | 600 | 460* | 460* | 610* | ||||||||
| Weight | RF | 900LB | 50 | 84 | 92 | 154 | 341 | 622 | 950 | 1295 | 1720 | 2380 | |||
| 1500LB | 60 | 91 | 128 | 182 | 394 | 795 | 1370 | 2120 | 2800 | 3870 | |||||
| 2500LB | 121 | 175 | 195 | 229 | 720 | 1295 | 2250 | ||||||||
| BW | 900LB | 39 | 64 | 82 | 120 | 266 | 524 | 760 | 1090 | 1450 | 2018 | ||||
| 1500LB | 46 | 71 | 85 | 130 | 292 | 587 | 974 | 1615 | 2010 | 2815 | 3315 | 4150 | 5219 | ||
| 2500LB | 88 | 135 | 144 | 158 | 500 | 892 | 1550 | 1978 | 2580 | 3780 | 5988 | ||||
