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  • J91W Ferrule Type Needle Valve

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J91W Ferrule Type Needle Valve

J91W Ferrule Type Needle Valve

  • Model:J91W-16P/J91W-25P/J91W-40P/J91W-64P/J91W-100P/J91W-160P/J91W-320P
  • Specification:DN6~DN25
  • Temperature:≤450℃;≤550℃
  • Medium:water, steam, oil products
  • Pressure:PN16-PN32
  • Connection method:Card sleeve
  • Driving method: Manual
  • Material: stainless steel, carbon steel
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J91W Ferrule Type Needle ValveOverview

The J91W ferrule-type needle valve is a small-bore instrument valve featuring ferrule connections, operated by rotating the handwheel to drive the stem and needle-type disc for precise opening and closing. Its sealing surface is directly machined from the valve body material (“W” type), forming a metal-to-metal hard seal. Both ends feature pre-fabricated ferrule ports, achieving quick and reliable connection by tightening the ferrule nut to deform the ferrule and grip the tubing. This valve is primarily used for root isolation of pressure gauges and transmitters, pipeline sampling, flow regulation, and draining/venting, especially in applications requiring frequent disassembly, space-limited installation, and hot-work-free operations. 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.

Product Drawingof J91W Ferrule Type Needle Valve

J91W Ferrule Type Needle ValveCharacteristic

1.Ferrule connections for quick installation: Features ferrule-type connection structure, requiring no welding or threading—simply insert the tubing and tighten the nut for fast and efficient installation.

Hot-work-free operation for safety: Ferrule connections require no welding, making them particularly suitable for flame-restricted areas or applications with flammable and explosive media, ensuring high safety.

2.Repeated disassembly and convenient maintenance: Ferrule connections allow multiple removals and re-installations of the valve, facilitating instrument inspection, replacement, and maintenance.

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.All-stainless steel corrosion resistance: Body and main components are made of 304/316 stainless steel, providing excellent corrosion resistance for various corrosive media.

6.High-pressure design: Robust body structure withstands high working pressures, suitable for medium to high-pressure applications.

7.Reliable stem sealing: Multi-layer packing or PTFE sealing with gland prevents external leakage.

8.Compact structure for space adaptability: Small size and light weight make it ideal for space-limited installations such as instrument panels and instrument boxes.

J91W Ferrule Type Needle Valvestructure principle

Structure Diagramof J91W Ferrule Type Needle Valve

Component name and material

序号No零件名称Part name材质属性Material
1卡套Ferrule20# A105 SS304 SS304L SS316 SS316L
2连接螺母Union nut20# A105 SS304 SS304L SS316 SS316L
3阀体Body20# A105 SS304 SS304L SS316 SS316L
4阀盖垫片Bonnet gasket紫铜PTFE RPTFE Red copper PTFE RPTFE
5阀盖Bonnet20# A105 SS304 SS304L SS316 SS316L
6填料垫Gland followerPTFE柔性石墨金属盘根 PTFE Flexible graphite Metal packing
7填料PackingPTFE柔性石墨 PTFE Flexible graphite
8填料压盖Gland20# A105 SS304 SS304L SS316 SS316L
9锁紧螺母Lock nut20# A105 SS304 SS304L SS316 SS316L
10阀杆Stem20# A105 SS304 SS304L SS316 SS316L
11手轮Handwheel20# A105 SS304 SS304L SS316 SS316L
12带帽螺母Cap nut20# A105 SS304 SS304L SS316 SS316L


J91W Ferrule Type Needle Valvetechnology parameter

Performance Specification Sheet

公称压力 (MPa) Nominal Pressure (MPa)试验压力 (MPa) Test Pressure (MPa)工作压力 (MPa) Working Pressure (MPa)工作温度 (℃) Working Temperature (℃)适用介质 Applicable Medium
壳体 (液) Casing (liquid)密封 (气) Seal (gas)
1.62.40.61.6P≤540℃液化石油气、水、酸、蒸汽、油品等 Liquefied petroleum gas,water,acid,steam,oil products,etc.
4.06.00.64.0
16.024.417.616.0
32.048.035.232.0C≤425℃


J91W Ferrule Type Needle Valvestandard size

J91W Ferrule Type Needle Valve Outline Drawing

Outline dimension table

DNDOLHD1
DN6Φ83892Φ70
DN10Φ103892Φ70
DN15Φ123992Φ70
DN20Φ144094Φ70
DN25Φ1842100Φ80