Product Introduction:

Developed from existing forged steel 3PC trunnion mounted ball valves, Pig ball valves for launching and receiving are a good alternative for conventional systems for pig cleaning because of the compact structure, which also has the fireproof and anti-static device. The valves are widely used in oil and gas pipelines to cut or connect the pipeline and clean the pipeline to improve the efficiency of pipeline transportation.

Technical Specification:

Size Range: 2"-10" (DN50-DN250)

Pressure Rating: ASME CLASS 150-1500 (PN16~PN250)

Body Material: A105, LF2, F304, F316, etc.

End Connection: Raised face flanged end, RTJ flanged end, Butt-welding end.

Operation: Lever handle, Gear operator, Electric actuator, Pneumatic actuator, etc.

Fire Safe Design: Yes

Brand: Neway

Application Scenarios:

-Clean the new installed pipe internal residue prior to first commissioning

-Internal pipe wall anti-rust and corrosion-resistant coating

-Pipe regular maintenance to the removal of liquid, wax, and general cleaning

-Isolation and transition of differential working media in the same pipe

Product Features:

-Double O ring sealing to prevent the leakage from stem area.

-Secondary metal-metal sealing perform when non-metal sealing is damaged.

-Double O ring sealing plug with two pressure-relieve holes to easy & save the operation on the field.

-Trunnion mounted ball design to extend seat life and reduce the torque of operation.

-Emergency seat sealant injection fitting to stop leakage from the seat.

-Isolated pig chamber to eliminate the requirement for an additional shut-off valve.

-Energized wave spring seats to ensure the sealing even at low pressure.

Working Sequences:

Pig Launching-Clockwise to close

Step 1-Open position -Through conduit flow, no pockets to trap wax or debris.

Step 2-Close valve -Upstream and downstream are sealed off. Vent body cavity pressure.

Step 3-Remove entry plug -Insert pig into valve ball cavity.

Step 4-Screw entry plug into place -Close vent valve.

Step 5- Open valve -Flowline pressure moves the pig downstream.

Pig Receiving-Clockwise to close

Step 1-Open position -Through conduit flow stopper in valve cavity arrests pig.

Step 2-Close valve -Upstream and downstream are sealed off. Vent body cavity pressure.

Step 3-Remove entry plug -Remove the pig from valve ball cavity.

Step 4-Screw entry plug into place -Close vent valve.

Step 5- Open valve -Flow brings the net pig along to be trapped.