Quick Opening Closure ASME U Stamp Pig Launcher Receiver

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    2018-07-24 04:33

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Shenyang Xinlian Petro-Chemical Equipment Co.,Ltd
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No.49 Zhengliang Si Road, Shenbei New District, Shenyang, China


Product Details

1.0 Definition 

The pig launcher/receiver (the “launcher/receiver”) is the equipment that can receive and launch pig under pressure in the pipeline of liquid and gas. It is installed at both ends of the pipeline or the interim pressure regulating valve room of pipeline, as an important device to clean, remove residues and rust, scrape wax and apply coating. Due to the pressurized working condition, the design, manufacture, test and acceptance are in strict accordance with ANSI B31.4 Liquid Petroleum transportation Piping System.

2.0 Components 

(1) Quick opening closure (4) Inlet and outlet nozzle (7) Reducer (10) Blowdown valve nozzle

(2) Pressure gauge nozzle (5) Safety valve nozzle (8) Sub-cylinder (11) Fore saddle support

(3) Cylinder (6) Vent valve nozzle (9) Rear saddle support

The launcher/receiver is composed of quick opening closure, main cylinder, reducer, sub-cylinder, inlet and outlet nozzle (the launcher as the inlet and the receiver as the outlet), pressure gauge nozzle, blowdown valve nozzle, vent valve nozzle, safety valve nozzle, saddle support (the intelligent pig launcher/receiver have balance port). The accessories that connect the launcher/receiver consist of pressure gauge, blowdown valve, vent valve, ball-passing indicator, safety valve as well as the flange, bolt, nut and pad that match with various interfaces. As required by the customers, the sliding filter bear basket, rotating crane and cathodic protection devices can be provided additionally. 

3.0 Technical Performance 

In general, the pig launcher/receiver are installed horizontally. For exceptional circumstances such as slope, well bottom and underground, the slant or vertical installation can be adopted upon considering safe conditions. The quick opening closure at the end is capable of secondary pressure relief, so that the pressure difference between the inside and outside maintains to be zero to ensure safe operation.         

4.0 Norms and Standards

The design, manufacture, test and acceptance of pig receiver meet the following norms and standards of the latest edition. If there are more than one standard, regulation and norm that meet the same requirement, the most stringent one and ISO9001 quality system shall be followed. 

ANSI B31.4 Liquid Petroleum transportation Piping System
API Spec. 5L Specification for Line Pipe
ASME B31.3  Process Piping
API Spec. 6D  Specification for Pipeline Valves (Gate, Plug, Ball & Check valves)
ASME VIII  Boiler and Pressure Vessel Code
API Spec.1104 Standard for welding pipelines and related facilities.
ASME Section IX  Welding & Brazing Qualification

Pig signaller

Mechanical Explosion-proof Pig Signaler is a necessary device in the process of pigging long pipeline. Model BTQ-02D indicator is also an indicating instrument in the form of mechanical contact and is made by remolding Model XLTQ-02D. It is featured by simple construction,explosion protection and direction indication.

1、Pressure 25Mpa(250Kg/cm2),Working Temp: -40℃~80℃;

2、Diameter of pipeline D≥DN100.Actuating medium is petroleum

products, natural gas and other non-corrosive fluid.

Metal pipes of all varieties with good weld ability with steel 20 can be


3、The length of the trigger that stretches into the pipe should be 60mm

4、The signaler can work normally when the cleaner passes through the

pipeline clockwise and counter-clockwise.

5、 The equipment should have an installation height of 325mm under

normal service conditions.

6、Display: Flag; Reset by hand.

7、It is suitable for use in the explosion-proof places.

8、The product has undergone seal inspection before exfactory.

9、Total weight of the equipment is 7 kg.

10、Explosion-proof mark dIIBT4

Protection Grade IP 65

Corrosion prevention grade WF1

11、Application Scope:

Dangerous venues with explosive gaseous Mixture: zone 1 and zone 2

Explosive gaseous mixture: ⅡA and ⅡB

Temperature group: T1-T4

Packing details



XINLIAN has rich experience in producing quick opening closure asme u stamp pig launcher receiver as well as the customized equipment. Well-known as one of the largest manufacturers and suppliers in China, we warmly welcome you to buy our quality products made in China and get the quotation with our factory.