Multi-trim Production Choke
The 100DPC production choke valve, addresses the application-specific concerns above by incorporating the following aspects into the product design:
Erosion, vibration and noise are symptoms of high kinetic energy levels. Guarantees optimum wear resistance in erosive conditions due to energy & velocity control with multi-stage & multi path DRAG® trim technology.
Key trim components are produced from solid tungsten carbide for additional erosion resistance.
To address corrosion, all wetted surfaces on pressure boundary parts are weld overlayed with Inconel 625. In addition, all internal wetted metallic parts are made out of Inconel 718 as standard.
Large, expanding flow passages are used to allow the valve to handle solids and dirty fluids while minimising the potential for clogging.
Characterised trim possible to maximise CV range. Trims are available in single and multi-stage configuration. Interchangeability of parts guaranteed
The design of internals and packing arrangements are optimised for easy maintenance and no components are screwed or welded to the pressure boundary parts.
Actuated & manual
MANUAL HANDWHEEL
– External grease port lubricates threads and bearings.
– Stem lock maintains set position.
– Anti-rotation keys convert rotation from the drive bushing into linear movement.
– Mechanical stroke indication as standard with excellent accessibility with high resolution.
ELECTRIC ACTUATION
– Standardisation of electric actuation completed.
– Actuator gear unit designed to guarantee self-locking function.
– Available compliant with end-user specifications.
OTHER OPTIONS
– Low power electric, hydraulic, electro-hydraulic actuation methods are available on request.
– Full range adjustable mechanical travel stop available on request.
Product Feature
- Body / bonnet -> AISI 4130 60K/ASTM A182 F22 60K with 3.0 mm inconel 625 weld overlay
- Trim 718 nickel alloy with solid tungsten carbide
- ANSI 1500 - 2500:1-1/2”, 2”, 3”, 4”, 5”, 6” 8”, 10”
- API 5000 - 10000: 1-13/16”, 2-1/16”, 2-9/16, 3-1/8”, 3-1/16”, 4-1/16”, 5-1/8”, 7-1/16”, 9”
- Design temperature: -46°C to 150°C
- Quality STANDARD ASME B16.34; API PSL2; API PSL3 & API PSL3(G); NACE MR0175
- Quality OPTIONAL: PSL4 on request
- Shut-off class ANSI/FCI Class IV & Class V
- Actuator types: Manual handwheel & electric motor operated or Pneumatic and hydraulic
- Material Classes: API material class HH as standard. Other classes available on request
- Pressure Drop: Up to 600 bar pressure drop
Certification
> Quality – ISO 9001
> Metallurgy – NACE MR0175
> Function – API PR-2
> Fugitive Emission – ISO 15848-1/2
> Fire-Safe – API 6FA
> Hazardous Area – IEC Ex/ATEX/FM/C SA