337C Instrumentation Ball Valve

Brand: Inline Industries

The 337C Compression Ends ball valve incorporates several innovative design features for improved performance.

The valve's uniform bore diameter improves flow characteristics and eliminates pooling of potential contaminants.

Roll burnishing and polishing all 316L stainless steel internal surfaces reduces surface porosity and improves finish.

The ISO 5211 mounting pad allows for direct mounting of most actuators.

Operating / Test Conditions:
  • Temperature Range (TFM seats): -20° to 450° F
  • Maximum Working Pressure (TFM seats): 1000 psi CWP (1/4" - 1")
  • Valves inspected and tested to API 598 and meet MSS SP-61 seat leakage requirements.
  • All materials comply with applicable ASTM material specifications, and FDA, USDA requirements.
  • All soft wetted parts comply with FDA CFR Title 21 Part 177.
  • Material test reports available upon request.
  • Options:
  • Clamp, tube butt weld, extended tube butt weld ends.
  • Polish and Electro-polish to custom specification.
  • Cavity filled seats.
  • True Drain CIP.
  • Made of Corrosion-Resistant 316L SS (A-351 Gr. CF3M):
    • One valve can be used for many service conditions.
  • ISO 5211 Direct Mount Pad:
    • No bracket or drive coupling needed for automation.
    • Eliminates exposed moving parts for safer work environment.
    • Improves actuator positioning and prevents side loading of the stem seal.
  • High-Cycle, Live-Loaded Stem Packing:
    • Ensures tight seal.
    • Extends service life.
  • O-Ring Stem Bearing:
    • Maintains stem alignment.
    • Reduces packing side loading and wear Enhances stem seal.
  • Blow-Out-Proof Stem:
    • Stem is bottom loaded to prevent removal when valve is in service.
  • 3-Piece Swing-in-Place Construction:
    • Easy to repair in service line.
  • Locking Device:
    • Enables plant personnel to secure valve in open or closed position when manually operated.
  • Silver Plated Nut:
    • Reduces galling on threads.
  • Heat Treated Ferrules:
    • Assures continuous tight seals.


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