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Product introduction
Stop valve refers to valve that start-stop part driven by valve rod. In pipeline, it is used as medium for connection and cutting.
Structure
Stop valve lining series is J41F46 straight-through type, J45F46 straight-flow and J44F46 right-angle type. It has features of tight structure, flexible for start-stop, strong corrosive performance and short range. It is widely applied in chemical and petroleum industry.
It is integrated of valve clack and valve rod.
Design specifications
GB12233, GB12235
Drive mode
manual operation, worm drive, air-operated, power-driven.
Performance specification
| Design and manufacturing | Structure length | Connection flange | Pressure testing | Product mark | Delivery specification |
| GB/T12237 | HG/T3704-2003 GB/T1221 | HG20592-97 | GB/T13927-92 | GB12220 | GB/T12252 |
nominal pressure: PN1.0-1.6(MPa), inside nominal diameter: DN15-DN250(mm).
Sketch map
Standard Material Specifications
| No. | name of parts | nodular cast iron | cast steel | stainless steel | ultra-low carbon stainless steel | ||
| Q | C | P | R | PL | RL | ||
| 1 | valve body, valve deck | Ht250 | WCB | CF8 | CF8M | CF3 | CF3M |
| 2 | valve clack, valve rod | 35 | 1Cr13 | 1Cr18Ni9 | 1Cr18Ni12Mo2Ti | 00Cr18Ni10 | 00Cr17Ni14Mo2 |
| 3 | swing bolt | 35 | 35 | 1Cr17Ni2 | 1Cr17Ni2 | 1Cr17Ni2 | 1Cr17Ni2 |
| 4 | lining layer/valve seat | FEP(F46) PCTFE(F3) PFA(soluble F4) PP PO | |||||
| 5 | padding | PTFE(F4) | |||||
| 6 | packing gland | WCB | WCB | CF8 | CF8M | CF3 | CF3M |
| 7 | valve rodnut | ZcuAl10Fe3 | |||||
| 8 | bolt | 35 | 35 | 1Cr17Ni2 | 1Cr17Ni2 | 1Cr17Ni2 | 1Cr18Ni9Ti |
| 9 | nut | 45 | 45 | 0Cr18Ni9 | 0Cr18Ni9 | 0Cr18Ni9 | 0Cr18Ni9 |
| 10 | handle | Ht200 | 1Cr13 | WCB | WCB | WCB | WCB |
Main conncetion dimension and weight
| inside nominal diameter | standard valves | reference value | ||||||||
| DN(mm) | NPS(inch) | L | D1 | D2 | f | Z-Φd | Do | H | H2 | W(kg) |
| PN1.0/PN1.6(MPa) | ||||||||||
| 15 | 1/2 | 130 | 65 | 45 | 2 | 4-Φ14 | 100 | 240 | 265 | 7 |
| 20 | 3/4 | 150 | 75 | 55 | 2 | 4-Φ14 | 100 | 245 | 270 | 7.6 |
| 25 | 1 | 160 | 85 | 65 | 2 | 4-Φ14 | 120 | 250 | 275 | 8.2 |
| 32 | 11/4 | 180 | 100 | 78 | 2 | 4-Φ18 | 140 | 260 | 290 | 12 |
| 40 | 11/2 | 200 | 110 | 85 | 3 | 4-Φ18 | 140 | 285 | 320 | 14 |
| 50 | 2 | 230 | 125 | 100 | 3 | 4-Φ18 | 160 | 300 | 335 | 18 |
| 65 | 21/2 | 290 | 145 | 120 | 3 | 4-Φ18 | 180 | 355 | 400 | 26 |
| 80 | 3 | 310 | 160 | 135 | 3 | 4-Φ18/8-Φ18 | 240 | 400 | 450 | 40 |
| 100 | 4 | 350 | 180 | 155 | 3 | 8-Φ18 | 240 | 455 | 495 | 50 |
| 125 | 5 | 400 | 210 | 185 | 3 | 8-Φ18 | 280 | 530 | 560 | 65 |
| 150 | 6 | 480 | 240 | 210 | 3 | 8-Φ23 | 320 | 610 | 650 | 85 |
| 200 | 8 | 600 | 295 | 265 | 3 | 8-Φ23/12-Φ23 | 360 | 650 | 770 | 150 |
| 250 | 10 | 730 | 350/355 | 320 | 3 | 12-Φ23/12-Φ25 | 400 | 690 | 810 | 245 |
