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GRP Coupling
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GRP Coupling

GRP Coupling

Half coupling is a mechanical device designed primarily for the emergency and permanent repair of GRP pipe leaks. Its core function is to restore the integrity of a compromised GRP pipe section without requiring a complete shutdown or replacement of the pipeline.

 

 

Primary Function: Pipeline Repair

 

This is its standard and most critical application, widely used for both metallic and Glass Reinforced Plastic (GRP) pipelines.

 
01
 

Leak Sealing

GRP/FRP Pipes: Delamination, resin cracking, impact damage, or leakage at bell-and-spigot joints.

Applicability: Effective on pressurized pipelines transporting water, gas, oil, and industrial fluids.

 
02
 

Live Leak Repair

It can often be installed under pressure, allowing for repairs without interrupting service. This is crucial for minimizing downtime and avoiding the complex draining procedures often associated with large-diameter pipe transmission mains.

 
03
 

Mechanism

The clamp typically consists of a two-part metal housing (often stainless steel) and an integrated elastomeric sealing gasket.

Seal: This compresses the gasket against the glass fiber reinforced plastic pipe exterior, conforming to the surface to form a watertight or airtight seal, effectively bridging cracks or delaminated areas.

installing Half coupling for GRP FRP pipes construction

 

 

 

 

Secondary Application: Connection for FRP Pipes

 

Under specific and carefully evaluated conditions, it can serve as a special-purpose connector for plastic pipes.

 
01
 

Temporary or Emergency Connection

It can be used to join two GRP/FRP pipe ends temporarily to restore service during emergency repairs or to create a bypass. This application is highly situational and typically requires a permanent, bonded repair to follow.

 
02
 

Connecting Plain-End FRP Pipes

It connects two plastic pipes of the same specification (DN, PN, SN) that have been cut to create plain ends. Precise alignment and smooth, squared cut ends are absolutely critical.

 
03
 

Connection in Hazardous Areas

It provides a flameless, mechanical connection method in environments where hot work or the use of chemical adhesives (inherent to standard GRP jointing) is prohibited.

coupling joint of FRP GRP pipes

 

 

 

 

Our Certificate

 

 

P1

9b89b075-c55a-4a98-b4d0-d30235e7141c

ISO 9001

71964d27-861a-4cb7-9ab6-e59f96bb9329

ISO 23856

486503af-cb9f-45d0-a1ef-45f6ca4bb90e

ISO 23856

 

 

 

 

 

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