choke valve

SIZES : 1" to 16" (25mm to 400mm)
RATINGS : ASME 600 to 4,500/API 6A 3,000 to 15,000

WHY CHOOSE A SERIES 73 CHOKE VALVE?

  • Proven design for more than 30 years.
  • Designed & manufactured to ASME B16.34/API 6A/ISO 10423.
  • Choose from numerous trim designs, from single-stage, high-capacity to multi-stage low noise and anti-cavitation.
  • Patented sand-resistant LCV trim design.
  • Choke design has inherently high capacity and rangeability.

FEATURES :

  • Choke body materials can be of forged, HIPped or cast construction.
  • Robust cartridge trim (bi-directional flow option).
  • Patented plug/seat design for heavily contaminated flows.
  • Solid or balanced plug available.
  • Dump tube/sparger (only for bypass to condenser)
  • High-grade premium carbide trims for optimum erosion resistance.
  • Brick stopper anti-collapse trim available.
  • Choose from a wide range of actuator options.
  • Seals are resilient and do not suffer from explosive decompression.

HF HIGH FRICTION CARTRIDGE TRIM :

  • Divides the main flow into many small streams, increasing turbulence and noise peak frequency and maximising the pipe wall transmission loss.
  • High energy levels, pressure and velocity are dissipated within the trim - avoiding erosion damage.
  • Design of final stage ensures low-velocity non-interacting jets, avoiding unnecessary noise generation in the choke outlet.
  • Various trim sizes can be used on different choke body sizes, to suit a wide range of process parameters.
  • The inner tungsten carbide control elements are protected from impact damage by the outer cartridge sleeve.

HF-LCV ANTI-EROSION TRIM DESIGN :
On applications where there is a risk of high sand contamination, the HF-LCV trim design is the ideal choice. It has been independently tested and has proved very successful in some of the most erosive service conditions.

  • Premium-grade solid tungsten carbide critical control elements.
  • Solid tungsten carbide sacrificial plug nose.
  • Shrouded plug seat, protected from the high erosive flow path.
  • Hole development dead band - the seating area is removed from the main flow area.
  • Stem scrapers prevent migration of sand into the stem seal area.
  • Resilient plug seals with scraper rings.
  • Metallic 'brick stopper' prevents solid particles impacting directly on the tungsten carbide.
  • Optional tungsten carbide wear sleeve.