Dalian Xiangrui Valve Manufacturing Co., Ltd.
Product Use
Stainless Steel Gate Valve: The valve body, valve cover, gate, and gate stem are made of stainless steel. The valve seat sealing surface is made of polytetrafluoroethylene, stainless steel + cemented carbide, or welded cemented carbide. The packing is generally made of cemented carbide, polytetrafluoroethylene, asbestos graphite, or flexible graphite. Nominal size DN15~DN800, working pressure 1.6MPa~20.0MPa, applicable temperature ≤200℃, suitable for nitric acid and weakly corrosive media pipelines.
Product Features
1. Made of austenitic stainless steel, it has good corrosion resistance to oxidizing acid media.
2. When the medium flows through the stainless steel gate valve, its flow direction does not change, and the fluid resistance is small.
3. The direction of the gate movement is perpendicular to the direction of the medium flow, the closing torque is small, and the opening and closing is easier.
4. The flow direction of the medium is not restricted, it does not cause turbulence or reduce pressure. The medium can flow through from either side of the gate valve to achieve the purpose of use, suitable for pipelines where the flow direction of the medium may change.
5. The gate is vertically placed in the valve body, and the structural length is shorter.
6. Good sealing performance. When fully open, the sealing surface is less susceptible to erosion.
Standards
Design Standard: GB/T 12234
Structural Length: GB/T 12221
Connecting Flange: JB/T 79.1, etc.
Testing and Inspection: JB/T 9092
Pressure-Temperature: GB/T 9131
Product Identification: GB/T 12220
Performance Parameters
| Nominal Pressure PN (MPa) |
Shell | Test Pressure (MPa) | Upper Seal | |
| Liquid Seal | Gas Seal | |||
| 1.6 | 2.4 | 1.8 | 0.6 | 1.8 |
| 2.5 | 3.8 | 2.8 | 0.6 | 2.8 |
| 4.0 | 6.0 | 4.4 | 0.6 | 4.4 |
| 6.4 | 9.6 | 7.0 | 0.6 | 7.0 |
| 10.0 | 15.0 | 11.0 | 0.6 | 11.0 |
| 16.0 | 24.0 | 18.0 | 0.6 | 18.0 |
Applicable Media and Temperature
| Shell Material | Applicable Media | Applicable Temperature (°C) |
| Chromium-Nickel-Titanium Steel (P-type) | Nitric Acid | ≤200 |
| Chromium-Nickel-Molybdenum-Titanium Steel (R-type) | Acetic Acid | ≤200 |
Main Component Materials
| Valve Body, Valve Cover | Valve Plate, Valve Seat | Valve Stem | Valve Stem Nut | Packing | Handwheel |
| Chromium-Nickel-Titanium Steel | Stainless Steel, Stainless Steel + Cemented Carbide | Chromium-Nickel-Titanium Stainless Steel | Aluminum Bronze | Polytetrafluoroethylene | Malleable Cast Iron |
| Chromium-Nickel-Molybdenum-Titanium Steel | Stainless Steel, Stainless Steel + Cemented Carbide | Chromium-Nickel-Titanium Stainless Steel | Aluminum Bronze | Polytetrafluoroethylene | Malleable Cast Iron |
Keyword
Gate valve
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Contact us
Phone:0086-411-86734112
Phone:0086-411-86735038
Phone:0086-411-86735010
Fax: 0411-86735468
Ms. Han:0086-15309815938
Ms. Song:0086-18098804580
Email:xiangrui@dl-xiangrui.com
Address: No. 12, Xinfeng Street, Ganjingzi District, Dalian City, Liaoning Province
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