J13W Stainless Steel Needle Valve
manufacturer: Kaiweixi Valve Group Co., Ltd
Eml: Merry@kaiweixi.com
Tel: +86 (577) 67038872
Mob: +86 18157711652（WeChat Same Account）
product drawing
J13W Stainless Steel Needle Valves
Overview
The J13W stainless steel needle valve is a small-bore instrument valve with male thread connections, operated by rotating the handwheel to drive the stem and needle-type disc for precise opening and closing. The body and main components are made of 304/316 stainless steel, offering excellent corrosion resistance. This valve is primarily used for root isolation of pressure gauges and transmitters, pipeline sampling, flow regulation, and draining/venting. It serves as a critical instrument accessory in industries such as petroleum, chemical, power generation, and pharmaceuticals, ensuring safe isolation and precise control of measurement systems.
Features:
1.All-stainless steel corrosion resistance: Body, bonnet, stem, and internals are made of 304/316 stainless steel, providing excellent corrosion resistance for various corrosive media.
2.Male thread connections for easy installation: Both ends feature standard male threads for direct connection to pipelines or instrument ports, ensuring simple installation and reliable sealing.
3.Needle-type disc for precise regulation: The needle disc cooperates with the seat to enable precise adjustment and control of small flow rates with excellent regulation performance.
4.Metal-to-metal hard seal for reliability: Sealing surfaces are directly machined from stainless steel, forming a wear-resistant metal-to-metal hard seal with long service life.
5.High-pressure design: Robust body structure withstands high working pressures, suitable for high-pressure applications.
6.Compact structure for space adaptability: Small size and light weight make it ideal for space-limited installations.
7.Reliable stem sealing: Multi-layer packing or PTFE sealing with gland prevents external leakage.
Dimensions & constructral diagram
J13W Stainless Steel Needle Valve constructral diagram
Parts List
| Model | Body | Joint | Stem | Cap | Packing |
|---|---|---|---|---|---|
| J13W-320 | 20# | 20# | 2Cr13 | 20# | flexible graphite |
| J13W-320P | SS304 | SS304 | SS304 | SS304 |
Performance Specification Sheet
| Model | Nominal Pressure | Test Pressure (MPa) | Working Pressure | Working Temperature | Applicable Medium | |
|---|---|---|---|---|---|---|
| (MPa) | Casing (liquid) | Seal (gas) | (MPa) | (°C) | ||
| J13W-16 | 1.6 | 2.4 | 0.6 | 1.6 | P≤540°C | Liquefied petroleum gas, water, acid, steam, oil products, etc. |
| J13W40P | 4.0 | 6.0 | 0.6 | 4.0 | ||
| J13W-160 | 16.0 | 24.4 | 17.6 | 16.0 | ||
| J13W-320P | 32.0 | 48.0 | 35.2 | 32.0 | C≤425°C | |
Outline dimension table
| Nominal Diameter DN (mm) | Pipe Thread | Dimensions (mm) | Weight (kg) | |||||
|---|---|---|---|---|---|---|---|---|
| D0 | L | H | H1 | d | ||||
| 6 | 1/4 | 60 | 55 | 90 | 100 | 4 | 0.63 | |
| 10 | 3/8 | 60 | 60 | 92 | 102 | 5 | 0.65 | |
| 15 | 1/2 | 65 | 65 | 97 | 107 | 6 | 0.8 | |
| 20 | 3/4 | 80 | 80 | 109 | 121 | 8 | 1.07 | |
| 25 | 1 | 100 | 90 | 122 | 132 | 10 | 1.8 | |
| 32 | 1 1/4 | 140 | 128 | 180 | 191 | 15 | 5.0 | |
| 40 | 1 1/2 | 160 | 148 | 200 | 215 | 18 | 7.2 | |
