Axial choke valve

This axial flow valve with solid Tungsten Carbide trims is designed to provide lower volume and weight solutions to large sized choke applications. The axial choke valve can also be fitted with fast closing features to protect downstream installations from overpressure.

Close valve

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Facts

Axial flow

Streamlined flow path through full-port expanded body avoids turbulence and prevents vibration and erosion of body and trim parts. Its reliability reduces the total cost of ownership and unplanned process downtime

Availability

The Total Velocity Management® concept is an intelligent valve design that carefully manages fluid velocity in all areas of the valve, minimizing erosion in body and trim. This significantly increases production availability.

Accurate control

Accurate control is possible (also with minimum opening) because of the fully pressure-balanced trim. Small, spring-opposed actuators can also be selected for large valve sizes.

High turndown

High capacity and accurate control features make the valve appropriate for both start-up and well depletion production scenarios. One-valve solution for full process envelope. Large hole trims for dirty well clean-up service and high capacity trims for minimized pressure loss at well depletion stage.

Compact

As a result of the low actuation force requirement, small actuators can be used; combined with a compact valve body design this minimizes the installation’s footprint.

Process safety

Sometimes, a choke is considered as a safety device to prevent overload of the relief system. In this axial choke the Tungsten Carbide cage is inherently protected against direct impacts by foreign objects.

Product Summary

Type designation

Choke (control) valve

Model

RZD-R.....-TC

Scope

Sizes 3" - 20"
rating class ASME 600 - 2500 or API 3000 - 10000

In preference to

Angle choke valve (especially larger sizes)
Rotating disc choke valve (angle and in-line)
Conventional globe control valve (angle and in-line)
In-line choke valves

Typical applications

Oil & Gas Production
Handling of untreated and wet gas
Joule Thomson Valve
(s)CCS applications

Streamlined flow path through full-port expanded body

Axial choke valve on Turret from Norne FPSO

Axial choke valves on Turret from Norne FPSO

Can we help?

If you would like to have more information about this product, please contact us. As experts in engineered valve systems, we are capable of providing reliable customer services and can support you with valve sizing and selection, process engineering and system lay-out and budget pricing.

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Special features

Custom-designed valve, trim and actuator for each unique choke application.
Wide variety of liquid, gas and multi-phase trims in linear and equal% execution.
Low fugitive emission: Tightness class B certified conform ISO 15848-1.
Proper sealing under all conditions, especially important when applied in (s)CCS.
Fire safe design.
Full range of matching Mokveld pneumatic and hydraulic actuators with tailored control arrangements is available. Actuation with other types of actuators is possible.

Downloads

Productsheet
Download file
Axial valve symbol (.dwg file)
Download file

More information

Applications

Discover how our axial choke valve is applied:

Axial choke valves on an FPSO

ALL APPLICATIONS

Product support

In order to ensure you continue to benefit from valves that offer high capacity and safety as standard, our Product Support team offers a range of services to improve your valves in use and to achieve cost savings.

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