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Power Plant High Pressure Shut-off Valve

This premium J61W series socket weld needle valve is expertly engineered from 316 stainless steel for extreme high-temperature and high-pressure environments. Featuring a heavy-duty forged body, a leak-tight T-bar handle design, and exceptional thermal resistance up to 648°C, it provides precise flow isolation for power plants, chemical processing, and critical industrial pipelines.

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The J61W-400P is a heavy-duty industrial needle/globe valve specifically designed to handle extreme thermal and pressure stress. Utilizing a high-grade 316SS forged square body and standard socket weld ends, it ensures a permanent, leak-free connection to pipelines. The robust T-bar handle allows operators to safely achieve reliable metal-to-metal shut-off in demanding power plant, steam, and petrochemical systems.

Technical Specifications

  • Valve Model: J61W-400P

  • Valve Type: High Pressure High Temperature Needle Valve / Globe Valve

  • Body Material: 316 Stainless Steel (316SS)

  • Stem Material: Hardened 316SS / Stellite overlay

  • Handle Type: Heavy-duty T-Bar handle

  • Connection Type: Socket Weld (SW)

  • Nominal Size: DN10 (3/8 inch)

  • Pressure Rating: Class 2500 / PN400 (Up to 40 MPa / 6000 psi)

  • Maximum Operating Temperature: ≤ 648°C (1200°F)

  • Sealing Design: High-integrity metal-to-metal seat

  • Packing Material: Flexible graphite / Grafoil for high-temperature sealing

  • Flow Pattern: Straight-through pattern with unidirectional arrow indicator

  • Body Structure: Forged square block body design for enhanced pressure containment

  • Applicable Media: Superheated steam, water, oil, corrosive chemicals, and high-temperature gases

  • Bonnet Type: Screwed-in / Union bonnet design for high safety margins

  • Test Inspections: 100% shell and seat pressure tested according to API 598

  • NACE Compliance: Available for sour gas service configurations upon request

  • Cleanliness Level: Free from oil, grease, and industrial surface contaminants

  • Wall Thickness: Meets ASME B16.34 standards for high-pressure safety

  • Mounting Orientation: Can be installed in any orientation relative to flow direction

  • Durability: Rated for extended lifecycle operations under severe thermal cycling


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