X-mas Tree and Tubing Head Cross
The pressurization parts of the Christmas trees and tubing spools are made of forged or special smelted forging, so it is high-pressurization safety and so on .
| Item | Component | Qty | Material | Remark |
| 1 | Pressure Gauge | 2 | | |
| 2 | Neddle Valve | 1 | | |
| 3 | Bull Plug | 1 | 4130 | |
| 4 | Instrument Flange | 2 | 4130 | |
| 5 | Gate Valve | 6 | | See P7 |
| 6 | Tubing Spool | 1 | 4130 | See P4 |
| 7 | Tubing Head Adapte | 1 | 4130 | |
| 8 | Gate Valve | 3 | | See P7 |
| 9 | Cross | 1 | 4130 | |
| 10 | Choke Valve | 2 | | See P15 |
| 11 | Tree Cap | 1 | 4130 | |
| 12 | Neddle Valve | 1 | | |
Tubing head spool:
1. Tubing head structure
Tubing head is usually a spool with both flanged ends，which is set on the top flange of casing head to hang tubing hanger and seal the annular space between the tubing string and oil-layer casing and which consists of tubing head spool and tubing hanger.
2. Functions:
1) hang the tubing string inside well;
2) seal the annular space between tubing and casing ;
3) give a crossover to connect casing head downwards and to connect x’mas tree upwards;
4) provide both side outlets in tubing head spool body through which to execute injection and well-wash operation.
3. Tubing hanger
Tubing hanger is an assembly to support tubing string and seal the annular space between tubing and casing,which is connected with tubing and seated into tubing hanger spool by tubing gravity. It is convenient to operate and replace wellhead so that it is widely used for intermediate depth well and common well.
Tubing head cross:
| Item | Component | Qty | Material | Remark |
| 1 | Grease Fitting | 6 | | |
| 2 | BT Seal Ring | 2 | NBR | |
| 3 | Tubing Spool | 1 | 4130 | |
| 4 | Tubing Hanger | 1 | 4130 | |
| 5 | Lock Screw | 12 | 4130 | |
| 6 | Packing Nut | 12 | 5140 | |
| 7 | Packing | 60 | PTFE | |
| 8 | Packing Washer | 24 | 410 | |
Tubing hanger:
| Item | Component | Qty | Material | Remark |
| 1 | Tubing Hanger Body | 6 | 4130 | |
| 2 | Nut | 2 | 1045 | |
| 3 | Gasket | 1 | 4130 | |
| 4 | Seal Ring | 1 | NBR | |
| 5 | 0-Ring | 12 | NBR | |
| 6 | 0-Ring | 12 | NBR | |
Technical Parameters for X-mas Tree Assembly:
| Parameter | Type |
| KY65/25 | KQ65/60 |
| Rated Pressure | 3500psi | 8500psi |
| Nominal Size | 2^9/16” | 2^9/16” |
| Working Temperature | P∪ | PU |
| Available Medium | Crude & Water | Crude & Water |
| Connection Type | Clamp Connection | Flanged Connection |
| Material Class | AA thru DD | AA thru FF |
| PSL | PSL1 & 2 | PSL1 thru 3 |
| PR | PR1&2 | PR1&2 |
Technical Parameters for X-mas and Tubing Heads:
| Parameter | Type |
| KQ65/21 | KQ65/35 | KQ80-65/35 | KQ65/70 | KQ78-65/70 | KQ65/105 | KQ78-65/105 |
| Rated Pressure | 3000psi | 5000psi | 5000psi | 10000psi | 10000psi | 1 5000psi | 1 5000psi |
| Nominal Size | Main | 2^9/16” | 2^9/16” | 3^1/8” | 2^9/16” | 3^1/16” | 2^9/16” | 3^1/16” |
| Side | 2^9/16” | 2^9/16” | 2^9/16” | 2^9/16” | 2^9/16” | 2^9/16” | 2^9/16” |
| Working Temperature | PU | PU | PU | PU | PU | PU | PU |
| Available Medium | Crude, Gas | Crude, Gas | Crude, Gas | Crude, Gas | Crude, Gas | Crude, Gas | Crude, Gas |
| PSL | PSL1 thru 3 | PSL1 thru 3 | PSL1 thru 3 | PSL1 thru 3 | PSL1 thru 3 | PSL1 thru 3 | PSL1 thru 3 |
| Material Class | AA thru FF | AA thru FF | AA thru FF | AA thru FF | AA thru FF | AA thru FF | AA thru FF |
| PR | PR1&2 | PR1&2 | PR1&2 | PR1&2 | PR1&2 | PR1&2 | PR1&2 |
| Connection Type| | Clamp,
Flanged | Clamp,Flanged | Clamp,
Flanged | Flanged | Clamp,
Flanged | Flanged | Flanged |
