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PIG LAUNCHER & RECEIVER

  

 PIG LAUNCHER & RECEIVER

Introduction

 

The PIG LAUNCHERS & RECEIVERS are designed for introducing and removing all different types and sizes of PIGS in and out of a pipeline system. Both, PIG LAUNCHER & RECEIVER are equipped with closures according to ANSI codes. The standard receivers are provided with mechanical PIG passage indicators. They have a bypass or kick-out line that is approximately one-third the pipeline size. They are also equipped with gauge (display unit), vent and drain outlets.


Typical Application

  • Sub Sea Application
  • Off-shore Application
  • On-Shore Application
  • Gas Transmission Pipelines

Quick Opening Closure

THECO closures provide horizontal or vertical access to pipeline pig traps or any other type of pressure vessel. Our quick opening closures can be operated safely at remarkable speed; any size of closure can be opened or closed by one person in less than one minute, with no special tools required. Meet requirements of ASME VIII Div. I the closure hub and door are manufactured from materials that fully comply with the requirements of ASME SEC. II

/ ASTM and NACE MR 01-75 upon request.

 

 

Pig Trap Dimension

Pig Launcher

 

Barrel (in) ۱۲ ۱۶ ۱۶ ۲۰ ۲۴ ۳۰ ۳۶ ۴۲ ۴۸  
Main Line (in) ۸ ۱۰ ۱۲ ۱۶ ۲۰ ۲۴ ۳۰ ۳۶ ۴۰
A (m) ۳٫۹ ۴ ۴ ۴٫۳ ۳ ۳٫۳ ۳٫۴ ۳٫۷ ۳٫۷
E (m) ۰٫۵ ۰٫۵ ۰٫۶ ۰٫۶ ۱ ۱ ۱ ۱٫۵ ۱٫۵
F (m) ۴٫۵۶ ۴٫۶۶ ۴٫۷ ۵ ۳٫۵ ۳٫۸ ۳٫۹ ۴٫۲ ۴٫۲
H (m) ۱۰۲۰ ۹۸۰ ۹۸۰ ۹۳۰ ۸۷۵ ۸۰۰ ۷۲۵ ۶۵۰ ۵۷۰
N1 (in) ۴ ۴ ۴ ۶ ۸ ۸ ۱۰ ۱۲ ۱۶
N2 (in) ۱/۲ ۱/۲ ۱/۲ ۱ ۱ ۱ ۱ ۱ ۱
N3 (in) ۱/۲ ۱/۲ ۱/۲ ۱/۲ ۱/۲ ۱/۲ ۱/۲ ۱/۲ ۱/۲
N4 (in) ۲ ۲ ۲ ۲ ۴ ۴ ۴ ۴ ۴
N5 (in) ۲ ۲ ۲ ۲ ۲ ۲ ۲ ۲ ۲
N6 (in) ۲ ۲ ۲ ۲ ۲ ۲ ۲ ۲ ۲
N7 (in) ۲ ۲ ۲ ۲ ۲ ۲ ۲ ۲ ۲
Trolly No No No No Yes Yes Yes Yes Yes
Tray No No No No No No No Yes Yes
JIB Crain No No No No Yes Yes Yes Yes Yes
Capacity (ton) ۱ ۱ ۱ ۲ ۲
Internal Basket No No No No Yes Yes Yes Yes Yes
A =Kicker Distance From Main Line N2 =  Relief Nozzle

N3 =  Pressure Indicator  Nozzle

E = Main Line length N4 =  Vent  Nozzle
F = Barrel length N5 =  Pig Signaler  Nozzle
H = Launcher Height N6 =  Pressurizer  Nozzle
N1 =  Kicker Line N7 =  Pressurizer  Nozzle

Pig Receiver

 

Barrel (in) ۱۲ ۱۶ ۱۶ ۲۰ ۲۴ ۳۰ ۳۶ ۴۲ ۴۸  
Main Line (in) ۸ ۱۰ ۱۲ ۱۶ ۲۰ ۲۴ ۳۰ ۳۶ ۴۰
B (m) ۳٫۹ ۴ ۴ ۴٫۳ ۳ ۳٫۳ ۳٫۴ ۳٫۷ ۳٫۷
C (m) ۰٫۵ ۰٫۵ ۰٫۶ ۰٫۶ ۱ ۱ ۱ ۱٫۵ ۱٫۵
G(m) ۴٫۵۶ ۴٫۶۶ ۴٫۷ ۵ ۳٫۵ ۳٫۸ ۳٫۹ ۴٫۲ ۴٫۲
H (m) ۱۰۲۰ ۹۸۰ ۹۸۰ ۹۳۰ ۸۷۵ ۸۰۰ ۷۲۵ ۶۵۰ ۵۷۰
N1 (in) ۴ ۴ ۴ ۶ ۸ ۸ ۱۰ ۱۲ ۱۶
N2 (in) ۱/۲ ۱/۲ ۱/۲ ۱ ۱ ۱ ۱ ۱ ۱
N3 (in) ۱/۲ ۱/۲ ۱/۲ ۱/۲ ۱/۲ ۱/۲ ۱/۲ ۱/۲ ۱/۲
N4 (in) ۲ ۲ ۲ ۴ ۴ ۴ ۴ ۴ ۴
N5 (in) ۴ ۴ ۴ ۴ ۴ ۴ ۴ ۶ ۶
N6 (in) ۲ ۲ ۲ ۲ ۲ ۲ ۲ ۲ ۲
N7 (in) ۲ ۲ ۲ ۲ ۲ ۲ ۲ ۲ ۲
Tray No No No No No No No Yes Yes
JIB Crain No No No No Yes Yes Yes Yes Yes
Capacity (ton) ۱ ۱ ۱ ۲ ۲
Internal Basket No No No No Yes Yes Yes Yes Yes

 

B =Kicker Distance From Main Line N3 = Pressure Indicator  Nozzle
C = Main Line length N4 = Vent  Nozzle
G = Barrel length N5 = Drain  Nozzle
H = Launcher Height N6 = Pig Signaler  Nozzle
N1 = Kicker Line N7 = Pressurizer  Nozzle
N2 = Relief Nozzle

TYPE DESIGNATION

THPL   – C- 600 ۱۲/۸

 Barrel/Main Line(inch)

Family        Rating(Class)     Max.W.Press.

THPL:Pig Launcher

THPR:Pig Receiver

MATERIALS

Part  Name Material
Barrel API 5L Gr. B, X42
Main Line API 5L Gr. B, X42
Quick Opening Closure St 52/ASTM A105
FLANGES ASTM A105
Nozzles API 5L Gr. B, X42
Sweepolet ASTM A234 WPB
Concentric/Eccentric Reducer ASTM A234 WPHY/WPB
Saddle ASTM A283 Gr.C
STUD BOLT&NUTS ASTM A193-B7/ASTM A194 2H
BASE Plate ASTM A283 Gr.C
NAME PLATE St. St.

Technical Specification

Inlet pressure Pi: up to 2500 Psig
Rating ۱۵۰#-۳۰۰#-۶۰۰#-۹۰۰#
Matching Pipe Line Range Up to 40
Operating temperature -۲۰ °c    to   + ۶۰ °c
Drain Handling Manual  R      AutomaticR
Design code ASME Sec VIIII-Div.1
Accessories Tray  R   JIB Crain R  

 

PERFORM

 

Pig Launching & Receiving Procedures

Pig launchers are used to launch the pig into the pipeline, and pig receivers are used to receive the pigs after they have made a successful run.

The choice of these pig traps will depend on the type of pig to be run and pipeline design conditions. Provisions in the station design should include handling equipment for pigs 20″ and larger. Caution should be taken for liquid spillage from the pig traps.

 

Typical Pig Launching Procedures

The operational sequence described below is for general information only. It is not intended, nor should it be used, to train pigging system operators. Operating procedures will vary from one pipeline company to another. The following pig launching procedures can be used as a guideline for developing operating procedures.

Since company policies vary regarding whether the pig launcher is left on stream or isolated from the pipeline after the pig is launched, the operator should verify that the trap is isolated from the pipeline and depressurized before commencing any part of the launch procedure.

 

  1. Make sure that the isolation valve and the kicker valve are closed.
  2. In liquid systems, open the drain valve and allow air to displace the liquid by opening the vent valve. In natural gas systems, open the vent and vent the launcher to atmospheric pressure.

 

  1. When the pig launcher is completely drained (0 psig), with the vent and drain valves still open, open the trap (quick opening closure) door.
  2. Install the pig with the nose firmly in contact with the reducer between the barrel and the nominal bore section of the launcher.
  3. Clean the closure seal and other sealing surfaces, lubricate if necessary, and close and secure the closure door.
  4. Close the drain valve. Slowly fill the trap by gradually opening the kicker valve and venting through the vent valve.
  5. When filling is complete, close the vent valve to allow pressure to equalize across the isolation valve.
  6. Open the isolation valve. The pig is ready for launching.
  7. Partially close the main line valve. This will increase the flow through the kicker valve and behind the pig. Continue to close the main line valve until the pig leaves the trap into the main line as indicated by the pig signaler.
  8. After the pig leaves the trap and enters the main line, fully open the main line valve. Close the isolation valve and the kicker valve.
  9. The pig launching is complete.

Typical Pig Receiving Procedures

The operational sequence described below is for general information only. It is not intended, nor should it be used, to train pigging system operators. Operating procedures will vary from one pipeline company to another. The following pig receiving procedures can be used as a guideline for developing operating procedures. Since company policies vary regarding whether the pig receiver is left on stream or isolated from the pipeline, the operator should verify whether there is any internal pressure in the receiving trap before starting any part of the receiving procedures.

 

  1. Make sure the receiver is pressurized.
  2. Fully open the bypass valve.
  3. Fully open the isolation valve and partially close the main line valve.
  4. Monitor the pig signaler for pig arrival.
  5. Close the isolation valve and bypass valve.
  6. Open the drain valve and the vent valve.
  7. Check the pressure gauge on the receiver to assure the trap is depressurized (0 psi).
  8. Open the trap closure and remove the pig from the receiver.
  9. Clean the closure seal and other sealing surfaces, lubricate if necessary, and close and secure the trap (quick opening closure) door.
  10. Return the receiver to the original condition.

 

TOOS HENGAM ENGINEERING COMPANY

         Professional in systems analysis         

P.O.Box : 91895-139

Tel/Fax :(+98 51) 36232501-4

Web : www.theco.ir

E-mail : info@theco.ir

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