INVERTED PLUG STEEL PLUG VALVE (Bottom entry).


  • Flow divider valve with a fairly uninterrupted steady fluid flow with minimal resistance when the valve is open so it can operate with any type of fluid such as liquid, gas, steam and even those containing solid particles in suspension such as coal particles or other minerals, sludge, drainage water or causing precipitates; however, its use is more common in gas transmission systems and in oilfields.
  • Design in accordance with API-6D and ISO-14313.
  • Walworth steel plug valve design known as Compensator removes the issue of the plug snapping into the body taper when there is no sealant due to it being installed in an inverted position; therefore, gravity will pull the plug away from the taper.
  • ASME Classes 150, 300, 600, 900, 1500 and 2500
  • Available on the following models:
    -Short model: 40-60% of port diameter of a full port valve.
    -Regular model: 60-70% of port diameter of a full port valve.
    -Ventury model: port diameter 40 to 45% of a full port valve.


OVERVIEW

Flow divider valve with a fairly uninterrupted steady fluid flow with minimal resistance when the valve is open so it can operate with any type of fluid such as liquid, gas, steam and even those containing solid particles in suspension such as coal particles or other minerals, sludge, drainage water or causing precipitates; however, its use is more common in gas transmission systems and in oilfields

DESIGN FEATURES

INVERTED PLUG STEEL PLUG VALVE (Bottom entry).

  1. Design in accordance with API-6D and ISO-14313.
  2. Port diameter varies by model (short, regular or ventury).
  3. Inverted conical (tapered) style design with anti-friction lining.
  4. Standard internal arrangement with carbon steel plug and anti-friction coating, SS-410 stem, diaphragm and stainless steel spring.
  5. Sealant to prevent leakage through the valve and minimize friction during operation. Request the appropriate sealant for your operating conditions.
  6. Opening and closing indicator by means of a ¼ turn stop ring to indicate the position of the plug (open or closed). It also incorporates a locking device.
  7. Anti-ejection stem design.
  8. Stem chamber packing system as the primary seal.
  1. Lever or gear operator for ¼ turn opening.
  2. Mechanical balancing spring.
  3. Check valve design for dynamic balancing.
  4. Setscrew
  5. NPS ½ to NPS 36 diameters.
  6. RF or RTJ ends under ASME B16.5 from NPS ½ to NPS 24; for NPS 26 and larger valves, ASME B16.47 Series A flanges as standard.
  7. For WE end valves in accordance with ASME B16.25.
  8. Flange end spacing in accordance with API-6D table C2.
  9. Classes 150, 300, 600, 900, 1500 and 2500 #.
  10. Flame-retardant design in accordance with API-6FA ("Standard for Fire Test for Valves").
  11. Suitable for corrosive service in accordance with NACE MR-01-75 or NACE MR-01-03.
  12. Performance testing in accordance with standard API-598.
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