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.
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.