Stainless Steel Bellows Sealed Needle Valves

Working Pressure: 1000 psig (68.9 bar)

Working Temperatures: PTFE packing: -65 °F to 450 °F (-54 °C to 232 °C)

Graphite packing: -65 °F to 1200 °F (-54 °C to 649 °C)

Tip: SS316, HC, Ceramic, Alloy(Optional)

ITEM NO. HJBWF1-YZ8-1-SL CATEGORY TAGS
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ParameterSpecification
Valve TypeBellows Sealed Needle Valve
MaterialStainless Steel 316
Pressure Rating1000 PSI
Connection SizeOD 1/2″
Connection TypeTube / Instrumentation Fitting
Sealing TypeMetal Bellows Seal
Operating MediaGas, Vacuum, Clean Fluids
Temperature RangeCustomizable upon request

Stainless Steel Bellows Sealed Needle Valves

The 1000 PSI Stainless Steel Bellows Sealed Needle Valves is designed for precise flow control in vacuum and high-purity pressure systems. Featuring a metal bellows seal structure, this valve completely isolates the process media from the external environment, ensuring zero stem leakage and long-term operational safety. Manufactured from high-grade 316 stainless steel, it offers excellent corrosion resistance and mechanical strength, making it ideal for vacuum applications, gas control systems, analytical instruments, and semiconductor or laboratory environments.

Key Features

  1. Bellows Sealed Design
    Fully welded metal bellows eliminate stem leakage and ensure reliable sealing under vacuum and pressure conditions.
  2. High Pressure Rating
    Rated up to 1000 PSI (≈69 bar), suitable for both vacuum and medium-pressure systems.
  3. 316 Stainless Steel Construction
    Superior resistance to corrosion, oxidation, and chemical attack.
  4. Precision Needle Control
    Fine-thread stem provides accurate flow regulation and smooth operation.
  5. OD 1/2″ Tube Connection
    Compatible with standard instrumentation tubing for easy installation.
  6. Vacuum & High-Purity Compatible
    Ideal for clean gas, inert gas, and vacuum service applications.

Typical Applications

  • Vacuum systems and chambers
  • Gas sampling and analysis systems
  • Semiconductor and electronics manufacturing
  • Laboratory and research equipment
  • Chemical processing instrumentation
  • High-purity gas distribution systems
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