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Cast Steel Swing Check Valves 150lb – 2500lb

  • Features

    • Seal-welded seats
    • Bosses for taps & bypass
    • Graphite packing
    • Fugitive emission tested
    • NACE MR-01-75

  • Options

    • Alternate Trims
    • Outside Lever & weight
    • Pressure Seal design

  • Standards

    • BS1868
    • ANSI B16.34
    • ANSI B16.10
    • ANSI B16.5
    • ANSI B16.25
    • ANSI B16.47
    • API-598
    • MSS SP-25
    • API 594 (7th Ed.)
    • API 594 (8th Ed.)

Download Drawings

Drawings are based on most recent revisions and are subject to change without notice.

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William E. Williams Valve Corporation

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Long Island City, NY 11101

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2020 Greens Rd. Suite 100
Houston, TX 77032

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