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Well control system oil and gas manifold / choke manifold diagram for wellhead assembly
Choke manifold is a system of valves and chokes for controlling the flow from the well usually has two flow paths, one adjustable choke used primarily for cleaning the well up and facilities to install and change choke of fixed sizes for a more accurate flow control during main well flow periods.
Choke manifold is used during well testing,. The positive choke has a fixed diameter and the size of the orifice on the adjustable choke can be varied. In addition the adjustable choke allows fixed chokes to be switched out as needed without stopping the well, increasing the flexibility of the overall system.

The technical parameters about choke manifold
Size | Dimensions L X W X H | Configuration | |
psi | inch | inch | |
5000 | 3.1/16" | 90.9 x 89.6 x 32.5 | 5 x Manual Valves |
5000 | 3.1/16" | 90.9 x 135.7 x 41.8 | 2 x Hyd.Valves & 6 x Man. Valves |
5000 | 4.1/16" | 76 x 108.9 x 74.0 | 4 x Manual Valves |
10000 | 3.1/16" | 99.9 x 95.6 x 39.4 | 5 x Manual Valves |
10000 | 4.1/16" | 108 x 178.25 x 46.0 | 8 x Manual Valves |
10000 | 4.1/16" | 85 x 120.0 x 85.0 | 4 x Manual Valves |
15000 | 3.1/16" | 103.5 x 161.9 x 73.1 | 4 x Hyd.Valves & 4 x Man. Valves |
15000 | 4.1/16" | 103.5 x 161.9 x 43.63 | 8 x Manual Valves |
15000 | 4.1/16" | 96 x 175.0 x 72.2 | 8 x Manual Valves |
Technical drawing of choke manifold

Main features of oil and gas manifold / choke manifold diagram as below:
1.Control the well fluid flow.
2.Built-in Cameron style gate valves which can be redressed on pipeline.
3.Standard two flow system: one through a positive choke and the other through an adjustable choke that can be converted into a positive choke.
4.Provides a means for fluid sampling, real-time pressure and temperature monitoring, and chemical injection.
5.Metal-to-metal, double seal to ensure reliability in harsh environments.
6.15000psi adjustable nozzle adopts gear handle,which can reduce the operating torque.
7.Positive choke is equipped with tungsten steel lining,making it twear-resisting and corrosion resistant.


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