ANSI API Rising Stem Flanged Gate Valve 125LB Cast Iron 4 Inch Low Pressure
ANSI API Cast Iron 125lb Flange Rising Stem Gate Valve
Product introduction
The gate valve is a gate with opening and closing parts. The movement direction of the gate is perpendicular to the fluid direction. The gate valve can only be fully opened and fully closed, not adjusted and throttled. The gate valve is sealed by the contact between the valve seat and the gate. Usually, the sealing surface will be overlaid with metal materials to increase the wear resistance, such as overlaying 1Cr13, stl6, stainless steel, etc. The gate valve has rigid gate valve and elastic gate valve. According to different gate valves, the gate valve is divided into rigid gate valve and elastic gate valve.
Specifications
| Design and manufacture | MSS S-70 |
| Face to face | ANSI B16.10 |
| Flange end | ANSI B16.1 |
| Test | MSS SP-70 |
Usage:
Turn on or turn off the pipelines where the nominal pressure is bleow the pressure 125LB, and the medium must be stem, water or oil, which canbe used in fields of petroleum industry, chemical indemical industry, pharmaceutical industry an power industry
Feature
| SIZE | 2"~12" |
| Norminal ressure | 125LB |
| Suitble tempreature | -10 to 200℃ |
| Seal test | 1.41mpa |
| Shell test | 2.46mpa |
| Suitable medium | water gas oil |
Main parts and materials
| part name | material |
| body | HT200 |
| body sealing ring | ZCuSn5Pb5Zn5 |
| disc ring | ZCuSn5Pb5Zn5 |
| disc | HT200 |
| stem | 2Cr13 |
| nut | 25 |
| bolt | 35 |
| gasket | 08+ graphite |
| bonnet | HT200 |
| packing | graphite |
| bolt | 35 |
| nut | 25 |
| packing gland | QT450-10 |
| stem nut | ZCuSn5Pb5Zn5 |
| bonnet nut | HT200 |
| Slotted set screw | 35 |
| wheel | HT200 |
| wheel nut | Q235 |
Dimensions
| Size | DN | L | D | D1 | b | Zxф | Hmin | Hmax | ф |
| 2" | 50 | 178 | 152 | 120.5 | 15.9 | 4xф19 | 310 | 368 | 203 |
| 2-1/2 " | 65 | 190 | 178 | 139.5 | 17.5 | 4xф19 | 339.5 | 413 | 203 |
| 3" | 80 | 203 | 191 | 152.5 | 19.1 | 4xф19 | 377.7 | 464.7 | 203 |
| 4" | 100 | 229 | 229 | 190.5 | 23.9 | 8xф19 | 434 | 554 | 254 |
| 5 " | 125 | 254 | 254 | 216 | 23.9 | 8xф22 | 481 | 617 | 254 |
| 6" | 150 | 267 | 279 | 241.5 | 25.4 | 8xф22 | 545 | 705 | 305 |
| 8" | 200 | 292 | 343 | 298.5 | 28.6 | 8xф22 | 715.6 | 930 | 355 |
| 10" | 250 | 330 | 406 | 362 | 30.2 | 12xф25 | 827 | 1091 | 508 |
| 12" | 300 | 356 | 483 | 432 | 31.8 | 12xф25 | 1003 | 1317 | 508 |
Advantages
The fluid resistance is small, and the sealing surface is less brushed and eroded by the medium.Opening and closing is labor-saving.The flow direction of the medium is unrestricted, without disturbing the flow and reducing the pressure.The utility model has the advantages of simple shape, short structural length,good manufacturability and wide application range.
Disadvantages
It is easy to cause erosion and scratch between sealing surfaces, which is difficult to maintain.
The overall dimension is large, which requires a certain space for opening and closing, and the opening and closing time is long
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