Orifice choke valve is molded of two pieces of special carbon tungsten plates with rather ability of erosion resistance, one of which rotates to alter the concentricity between the upper orifice and lower orifice of two plates so as to adjust the flow-rate of fluid or gas.
The valve is used for manifold such as drilling, fracture, mud circuit, ground high-pressure gas injection/production, it has a outstanding feature that the pressure difference between inlet and outlet, as closing, can press both of the plates fast together so as to put into effect of sealing cutting, especially in the case that the pressure suddenly rises or falls, the pre-set sign-rate of high/low pressure sensor can be helpful for automatic closing/shut so as to avoid heavy accident. It is outstanding advantage that it has long working life and ability of erosion/corrosion resistance in comparing with other choke valves.
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| Item | Component | Qty | Material |
| 1 | Body | 1 | 4130 |
| 2 | Lower Seat Bushing | 1 | 4130 |
| 3 | Upper Seat Bushing | 1 | 4130 |
| 4 | Upper Seat | 1 | YG8 |
| 5 | Stem | 1 | 410 |
| 6 | Spring | 10 | 1566 |
| 7 | O-Ring | 2 | NBR |
| 8 | Bonnet | 1 | 4130 |
| 9 | Screw Housing | 1 | 5140 |
| 10 | Washer | 1 | 1035 |
| 11 | Screw | 1 | Assy. |
| 12 | Handwheel | 1 | 1035 |
| 13 | Pointer | 1 | 5140 |
| 14 | Bearing | 2 | Assy. |
| 15 | Split Bushing | 1 | 5140 |
| 16 | Packing Gland | 1 | 5140 |
| 17 | Bonnet Nut | 12 | 5140 |
| 18 | Packing | 3 | NBR |
| 19 | Bonnet Stud | 12 | 4130 |
| 20 | Lower Seat | 1 | YG8 |
CHANCE DOOR INTERNATIONAL specializes in the supply of equipment and service solutions to the international oil and gas industry. We guarantee quality goods, competitive price, and timely delivery.
Our range of equipment and service solutions include;
Rig Equipment and tools, Service and spares
Wellhead: Annular & RAM type BOP, Chrimstmas Tree, Manifold, Valves & parts under API Standard
Oilfield associated services
Chemicals
Laboratory supplies
Safety products
CHANCE DOOR International has the personnel and experience to ensure that our Rig and equipment packages are manufactured to international standards, and can start up and operate with maximum uptime in the field. With a long history of operating and maintaining onshore and offshore rigs our personnel are well equipped to assist our customers optimize their rig packages to save operational time during drilling and moving activities.
Manufacturing
Through experience, CHANCE DOOR International has established a list of approved vendors that have all the relevant API & ISO certification required as well as proven commitment to quality. During manufacturing of equipment packages CHANCE DOOR International are on site, contributing to the quality of the end product, and its ability to perform in the field. In addition CHANCE DOOR International has developed its own acceptance testing standards that exceed conventional Factory Acceptance Testing.
All of our efforts during manufacturing are aimed at provided the Customer with the peace of mind that when the equipment arrives on location, it is ready to go to work, and it will perform reliably.
CHANCE DOOR International provides comprehensive after sales service, including equipment installation and rig up support, operational training, warranty interface, and supply of technical service and spare parts.
