Choke Valve
Manual throttle
Brief introduction:
The choke valve，a main component of Christmas tree, is design to control production rate of the oil well，with working pressure up to 10000psi.Choke valves can be classified as follows: adjustable choke valves and positive choke valves. By rotating handwheel to drive the stem， and the adjustable choke valve is designed to adjust the effective area available for the flow to accomplish control of production rate. The positive choke valve is design to accomplish control of production rate by changing flow beans.
Features:
1. The coupling nut used for connecting the bonnet and body allows fast make- -up and break- out.
2. Stem tip and bean adaptor are fabricated from special carbide alloys for corrosion and abrasion resistance.
3. Indicator lens with scale marks allows the operator to know stem' s position and actual orifice area.
4. Turn handwheel counter- clockwise and the valve will open; turn handwheel clockwise and the valve will close.
| Item | Component | Qty | Material | Code |
| 1 | Bushing | 1 | FKM | SH-CV-xx-xx-01 |
| 2 | Body | 1 | 4130 | SH-CV-xx-xx-02 |
| 3 | Bonnet Stud | 8 | 4130 | SH-CV-xx-xx-03 |
| 4 | O-Ring | 2 | NBR | SH-CV-xx-xx-04 |
| 5 | Seat Bushing | 1 | 4130 | SH-CV-xx-xx-05 |
| 6 | Seat | 1 | YG8 | SH-CV-xx-xx-06 |
| 7 | Stem Adaptor | 1 | 4130 | SH-CV-xx-xx-07 |
| 8 | Valve Core | 1 | YG8 | SH-CV-xx-xx-08 |
| 9 | O-Ring | 2 | NBR | SH-CV-xx-xx-09 |
| 10 | Packing Box | 1 | 4130 | SH-CV-xx-xx-10 |
| 11 | O-Ring | 2 | NBR | SH-CV-xx-xx-11 |
| 12 | Bonnet | 1 | 4130 | SH-CV-xx-xx-12 |
| 13 | Packing Gland | 1 | 4130 | SH-CV-xx-xx-13 |
| 14 | Bonnet Nut | 8 | 4130 | SH-CV-xx-xx-14 |
| 15 | Stem | 1 | 410 | SH-CV-xx-xx-15 |
| 16 | Screw Housing | 1 | 5140 | SH-CV-xx-xx-16 |
| 17 | Saddle Key | 1 | 1045 | SH-CV-xx-xx-17 |
| 18 | Stem Nut | 1 | Cuprum | SH-CV-xx-xx-18 |
| 19 | Handwheel | 1 | 1035 | SH-CV-xx-xx-19 |
| 20 | Indicator Ring | 1 | 410 | SH-CV-xx-xx-20 |
| 21 | Stem Protector | 1 | 1035 | SH-CV-xx-xx-21 |
| 22 | Bearing Gland | 1 | 5140 | SH-CV-xx-xx-22 |
| 23 | Bearing | 2 | Standard | SH-CV-xx-xx-23 |
| 24 | Flat Key | 1 | Standard | SH-CV-xx-xx-24 |
| 25 | Grease Cup | 1 | Standard | SH-CV-xx-xx-25 |
| 26 | Packing Ring | 2 | 410 | SH-CV-xx-xx-26 |
| 27 | Packing | 5 | NBR | SH-CV-xx-xx-27 |
Hydraulic Choke Valve Brief introduction:
The hydraulic choke valve is used to be matched with manifold and other assemblies ，which is applicable for flow-rate adjustment，that is ，to raise or reduce the valve core location is help for alternation of flow-way cross- area and flow- -rate control .
Main technological parameters
Rated pressure: 2000- 1 5000psi
Working temperature: P U
Working medium: petroleum & natural gas .
| Item | Component | Qty | Material | Code |
| 1 | Body | 1 | 4130 | SH- CVY-xx-xx-01 |
| 2 | Bushing | 1 | FKM | SH- CVY-xx-xx-02 |
| 3 | Seat Bushing | 1 | 4130 | SH- CVY-xx-xx-03 |
| 4 | O-Ring | 1 | NBR | SH- CVY-xx-xx-04 |
| 5 | Seat | 1 | YG8 | SH- CVY-xx-xx-05 |
| 6 | Stop Nut | 1 | 1045 | SH- CVY-xx-xx-06 |
| 7 | Valve Core | 1 | YG8 | SH- CVY-xx-xx-07 |
| 8 | Lower Diversion Bushing | 1 | 410 | SH- CVY-xx-xx-08 |
| 9 | Upper Diversion Bushing | 1 | 410 | SH- CVY-xx-xx-09 |
| 10 | Stem | 1 | 410 | SH- CVY-xx-xx-10 |
| 11 | O-Ring | 1 | NBR | SH- CVY-xx-xx-11 |
| 12 | O-Ring | 2 | NBR | SH- CVY-xx-xx-12 |
| 13 | Bonnet | 1 | 4130 | SH- CVY-xx-xx-13 |
| 14 | Cylinder | 1 | 4130 | SH- CVY-xx-xx-14 |
| 15 | Cylinder Adapter | 2 | 4130 | SH- CVY-xx-xx-15 |
| 16 | O-Ring | 2 | NBR | SH- CVY-xx-xx-16 |
| 17 | O-Ring | 2 | NBR | SH- CVY-xx-xx-17 |
| 18 | O-Ring | 2 | NBR | SH- CVY-xx-xx-18 |
| 19 | Piston | 1 | 1045 | SH- CVY-xx-xx-19 |
| 20 | Cylinder lid | 1 | 4130 | SH- CVY-xx-xx-20 |
| 21 | Circlip | 1 | 1566 | SH- CVY-xx-xx-21 |
| 22 | Screw | 4 | 4130 | SH- CVY-xx-xx-22 |
| 23 | Washer | 1 | 4130 | SH- CVY-xx-xx-23 |
| 24 | O-Ring | 2 | NBR | SH- CVY-xx-xx-24 |
| 25 | Bonnet Nut | 8 | 5140 | SH- CVY-xx-xx-25 |
| 26 | Packing Gland | 1 | 5140 | SH- CVY-xx-xx-26 |
| 27 | Bonnet Stud | 8 | 4130 | SH- CVY-xx-xx-27 |
| 28 | Packing Ring | 2 | 410 | SH- CVY-xx-xx-28 |
| 29 | Stem Lip Packing | 5 | NBR | SH- CVY-xx-xx-29 |
