Description
Pig Launcher
Design Conditions | ||
1. | Pipeline Size | From 6″ up to 56″ |
2. | Design Code | ASME VIII Div 1; ASME B31.3; ASME B31.4; ASME B31.8, etc. |
3. | Design Factor | 0.5, 0.6, 0.7, etc. |
4. | Corrosion Allowance | 0-5 mm or more |
5. | Design Pressure | CL150, CL300, CL600, CL900, CL1500, CL2500, or as required. |
6. | Design Temperature (Min/Max) | -50℃ / 200℃ |
7. | Closure Type | Clamp Ring Type Quick Opening Closure |
8. | Installation Orientation | Horizontal, Vertical, Inclined |
9. | Applicable Medium | Gas, Oil, Petroleum, Chemical Materials, Water, etc. |
Structure and Main Materials | ||
1. | Major Barrel/Min Barrel | ASTM A106, ASTM A516 Gr.70, or as required. |
2. | Quick Opening Closure (with Interlock System) | ASTM A515 Gr.70, ASTM A516 Gr.70, And STM A105, ASTM A350 LF2 Class1, ASTM A694 F42 F46 F48 F50 F52 F56 F60 F65 F70, or as required. |
3. | Sealing Ring for the Closure | Viton, Nitrile |
4. | Saddle Support | Q235, or as required. |
5. | Flange | ASTM A105, ASTM A694 F70, or as required. |
6. | Lifting Lug/Eyes | Q235, or as required. |
7. | Grounding | Yes |
8. | Name Plate | Stainless Steel, or as required. |
Certificates | ||
1. | ASME U Stamp Certificate | Applicable |
2. | Third Party Inspection | BV, SGS, ABS, DNV, or as required. |
So if you have any other questions, please contact our professionals to answer them for you.
Description:
Pig launcher and receiver is a general term for cleaning, receiving, or sending pigging equipment for oil, gas, and other pipelines. The two ends of the installed pipeline are mainly composed of a cylinder, quick opening blind plate, reducer, support, short pipe, and other parts. It has the advantages of simple structure, fast switching, good sealing performance, simple operation, good corrosion resistance, safety, and reliability. Its design and manufacture refer to GB150 steel pressure vessels.
Pig receiver and launcher can be divided into PL launcher and PR receiver according to their uses. In the process of installation and operation, please read the installation and operation manual carefully in order to understand the connection mode and operation rules in detail.
1. Specification and performance of pig launcher and receiver
- Nominal diameter: dn200-dn1600mm
- Design pressure: 1.6-15mpa
- Test pressure: 1.5 × Design pressure
- Service temperature: 19-100 ℃ (if it is lower than -19 ℃, low-temperature materials can be selected according to user requirements)
- Working medium: crude oil, refined oil, and natural gas
- Corrosion allowance: 2 mm
The installation dimension can be appropriately modified according to the user’s process and site requirements.
2. Structure of pig launcher and receiver
- The pig receiver is mainly composed of the following components.
- Quick opening blind plate 7. Reducer
- Pressure gauge connecting pipe 8. Connecting pipe
- Safety valve nozzle 9. Rear support
- Cylinder 10. Drain valve nozzle
- Oil and gas inlet and outlet nozzles (1 or 2)
(1 or 2 outlets) 11. Front support - Vent valve nozzle
Note:
- Whether the receiver and launcher safety valve nozzle is set normally depends on the process requirements.
- The number of oil and gas outlets of the receiver depends on the process requirements, one or two.
- According to the process requirements, the oil and gas inlet or outlet of the receiver and launcher can be placed on the left or right.
3. Installation
- The unit responsible for installation shall pour the foundation according to the plane layout and size of the saddle. During pouring, the embedded holes of foundation bolts shall be reserved.
- Hoist the net receiver and launcher in place and grout the anchor bolts twice.
- Tighten the foundation bolts and nuts. Note that the equipment adopts two saddle supports when tightening, and one end is a sliding support. For each anchor bolt of the sliding saddle, two nuts should be used. After each nut is tightened, reverse it by one turn, and then lock it with the second nut.
- Ground the saddle.
- Connect each connecting pipe with the processing pipeline.
- Precautions during installation.
- The left and right directionality of the oil and gas inlet and outlet of the transceiver relative to the blind plate (from the blind plate or mainline).
Different pipelines should not be diagonally cross-connected when connecting with process pipelines to prevent the pipe eliminator from being stuck.
4. Requirements for correct use
The safety interlock device installed on the quick opening blind door cover is the key component to opening the quick opening blind. The operator must carefully read and abide by the quick opening blind operating procedures to prevent accidents.
Receiving and serving process
Follow the operation process of the station
After the pig launcher and receiver, task is completed. Open the blowdown valve of the receiver to discharge the remaining turbulence and gas in the receiver receiver receiver. Open the vent port of the blind plate. After the pressure inside the receiver and launcher is relieved, open the quick opening blind plate and clean up the oil and gas in the receiver and launcher to prepare for the next pipeline cleaning.
5. Maintenance
- A special wrench shall be used to open the quick opening blind plate.
- The sealing ring of the quick opening blind plate shall be checked for its integrity after each receiving and launching, and the sealing groove shall be cleaned at the same time to prevent impurities from damaging the sealing ring and causing leakage.
- The ball passing process is operated under pressure, and it is not allowed to knock the ball receiver and launcher rigidly.
So if you have any other questions, please contact our professionals to answer them for you.
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