Products

  • Butterfly Valves
  • Check Valves
  • Diaphragm Valves
  • Other Valves
  • Pinch Valves

    • Check Valves

    Manual Type


    The answer to problems of: corrosion, abrasion, clogging, contamination, vacuum & gas handling

    G&O Check valves are designed to standards of maximum simplicity and efficiency. The valve body can be supplied, on indications from customers, to fulfill specific requirements in use.

    PERFORMANCE FEATURES

    • Valves with most advanced designing features provide the ultimate in dependable, economic flow control
    • Surface protection for ductile iron and cast steel Valves, Chlorine free prime coat with modified alkyd resin unobjectionable in physiological and toxicological respects. Additional external coating: Ename/Silver Streak aluminum paint

    DISC & PLUG MATERIALS

    • ASTM A276 Type 410, 304, 316
    • ASTM A217 CA15
    • ASTM A216 WCB
    • ASTM A351 CF8, CF8m, CF3, CF3m
    • ASTM A395
    PVDF, PPH

    BODY VALVE LINING MATERIAL

    • Soft rubber
    • Hard rubber (ebonite)
    • Hypalon rubber
    • ECTFE/HALAR
    • Butyl rubber
    • EPDM rubber
    • Neoprene rubber
    • PFA

    END CONNECTIONS APPLICABLE STANDARD

    • ANSI/ASME B16.5 Flanged Valves
    • ANSI/ASME B16.1 Flanged Fittings
    • ANSI/ASME B1.20.1 (NPT) Pipe Threads
    • ANSI/ASME B16.34 Steel Valves
    • ANSI/ASME B16.11 Socketweld Fittings
    • ANSI/ASME B16.25 Buttweld Ends

    INSPECTION TESTS AVAILABLE BY

    • SGS GLOBAL TRADE SOLUTIONS
    • ITS INTERTEK TESTING SERVICES
    • BV BUREAU VERITAS

    OPTIONS

    • Limit switches
    • Solenoid valve
    • Position indicator
    • Air fitter regulator
    • 3:15 PSI positioner
    • 4:20mA electropneumatic positioner or 4:20mA electronic transmitter of position 30°-90° angle
    • Triphase AC motor

    DOWNLOAD CATALOUGUE

    download-pdf

    PRODUCT FEATURES

    • Simple three parts design for Non return Check valves, with only one moving part (disc), valve usable in vertical or horizontal plane.
    • Light weight for Wafer type Check valves, bubble tight, low pressure loss. The eccentric shaft connection in combination with disc seat, guarantees a positive shut off of the returning medium.
    • Light weight for Spring Loaded Check valve, short length, low pressure drop and positive shut off, achieved by unique spring loaded disc.
    • Dual Plate and on-Slam Check valves are stronger, lighter and smaller than conventional swing check valves.
    • Pressure Rating 7.0 bar, Class 150, 300, 600, 900, 1500, 2500
    • Size from ½” through 6 4”

    BODY VALVE MATERIALS

    • ASTM A126 CLASS C
    • ASTM A395
    • ASTM 1216 WCB
    • ASTM A351 CF8, CF8M, CF3, CF3M
    • ASTM A105
    • ASTM A182 F11, F22, F5, F9, F304, F316
    • PVDF, PPH

    GASKET O-RING VALVE MATERIAL

    • Spiral wound 304, 316 with CAF
    • Graphite
    • PTFE filled
    • EPDM (Other grades available on request)
    • Compressed Asbestos free

    DESIGN/TESTING APPLICABLE STANDARD

    • G&O STD
    • API 594
    • BS 5352
    • API 6D
    • API 598

    CERTIFICATES AVAILABLE

    • EN 10204 3.1.B
    • EN 10204 2.2
    • LP/MP TESTS

    MAIOR MARKETS SERVED

    • Chemical process
    • Power generation
    • Water treatment
    • Mining
    • Pulp & paper
    • Nuclear
    • Pharmaceutical
    • Food & Beverage
    • Sugar
    • Bioprocess

    G&O SERIES PNEUMATIC ACTUATORS

    Piston type air operators line offer a great solution to a wide range of actuation situations. They are exclusively designed to G&O series butterfly valves and can be mounted in any position. These actuators are built in aluminum and are available in three options:
    • single effect acting – fail to close (air to open)
    • single effect acting – fail to open (air to close)
    • double effect acting – fail to open & fail to close
    Single effect acting actuators are fitted by an extractable handwheel for security.