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E-mail
76228885@qq.com
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Phone
15821339995
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Address
Jinshan Industrial Zone, Shanghai
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Shanghai Shuangheng Valve Manufacturing Co., Ltd
J23W external thread needle valve
NegotiableUpdate on 02/06
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Overview
1、 Overview of External Thread Needle Valve Products: The external thread needle valve produced by Shanghai Shuangheng Valve Co., Ltd. is an important component of the instrument measurement pipeline system. It mainly includes globe valves and ball valves, and its function is to open or cut off pipeline passages. External thread needle valve product model: J23W nominal diameter: DN6-DN25 material: carbon steel, stainless steel pressure: PN2.5-PN4.0 applicable media: liquefied petroleum gas, acid, water, steam, oil products, etc. 2、 External thread needle valve product model and picture External thread needle valve J23W
Product Details
1、 Overview of External Thread Needle Valve Products
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The externally threaded needle valve produced by Shanghai Shuangheng Valve Co., Ltd. is an important component of the instrument measurement pipeline system, mainly including globe valves and ball valves, which are used to open or cut off pipeline passages. External thread needle valve product model: J23W nominal diameter: DN6-DN25 material: carbon steel, stainless steel pressure: PN2.5-PN4.0 applicable media: liquefied petroleum gas, acid, water, steam, oil products, etc. |
2、 External thread needle valve product model and picture
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External thread needle valve J23W
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3、 External thread needle valve material
| Part Name Part name |
Valve stem, valve cover Stem，Bonnet |
Valve stem, valve disc Stem，disc |
filler Packing |
|---|---|---|---|
| J21/23-16P | Chromium nickel stainless steel Cr. Ni Stainless steel |
Chromium nickel stainless steel Cr. Ni Stainless steel |
Polytetrafluoroethylene, flexible graphite PTFE，Soft graphite |
| J21/23-160、J21/23-40 | high-quality carbon steel High grade carbon steel |
Chromium stainless steel Cr. Stainless steel |
4、 Performance Specification for External Thread Needle Valve
| model Type |
Nominal Pressure PN Mpa |
Test pressure PS (Mpa) Test pressure |
Work pressure (Mpa) Working pressure |
Operating temperature (OC) Working temps. |
Applicable Medium Applicable medium |
||
|---|---|---|---|---|---|---|---|
| Shell shell | Seal (liquid) | Seal (gas) | |||||
| J21/23-16 | 1.6 | 2.4 | 1.76 | 0.6 | 1.6 | P≤540OC | Liquefied petroleum gas, water, acid, steam, oil products, etc Petroleum gas Water，As，Steam，Oil，etc. |
| J21/23-40P | 4.0 | 6.0 | 4.4 | 0.6 | 4.0 | ||
| J21/23-160 | 16.0 | 24.0 | 17.6 | 0.6 | 16.0 | C≤425 OC | |
| J21/23-320P | 32.0 | 48.0 | 35.2 | 0.6 | 32.0 | ||
| J21/23-420P | 42.0 | 63.0 | 46.2 | 0.6 | 42.0 | ||
5、 External thread needle valve external connection dimensions
| nominal diameter DN（mm） |
Dimensions | Weight (kg) Weight |
||||||
|---|---|---|---|---|---|---|---|---|
| Do | D1 | D2 | L | H1 | H2 | M | ||
| 6 | 65 | 14 | 6 | 140 | 96 | 106 | 20×1.5 | 0.9 |
| 10 | 80 | 18 | 10 | 160 | 115 | 125 | 24×1.5 | 1.18 |
| 15 | 100 | 22 | 15 | 180 | 122 | 132 | 30×2 | 2.0 |
| 20 | 110 | 28 | 18 | 220 | 156 | 166 | 30×2 | 3.5 |
| 25 | 140 | 33 | 22 | 230 | 169 | 180 | 39×2 | 4.3 |
6、 Precautions for installation of external thread needle valve
1. The installation position, height, and inlet/outlet direction must meet the design requirements, and the direction of medium flow should be consistent with the arrow direction marked on the valve body. The connection should be firm and tight.
2. Before installing the valve, a visual inspection must be conducted, and the valve nameplate should comply with the current national standard "General Valve Marking" GB 12220. For valves with a working pressure greater than 1.0 MPa and a shut-off function on the main pipeline, strength and tightness tests should be conducted before installation, and they can only be used after passing the tests. During the strength test, the test pressure shall be 1.5 times the nominal pressure, and the duration shall not be less than 5 minutes. The valve shell and packing shall be qualified if there is no leakage. During the tightness test, the test pressure is 1.1 times the nominal pressure; The duration of the experiment meets the requirements of GB 50243.
Note: The dimensions in the table are without standard attachment data. Due to possible changes in product improvement technology innovation parameters, please consult the company's technical department for the latest data.
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