Laminar Pte Ltd Singapore

Laminar Pte Ltd

Pipe Solutions

Dedicated Couplings

Group 1 1
Group 1 1


Laminar’s Dedicated Couplings are designed to connect pipes with the same outside diameter. They can be customised to fit DIN, ANSI, and JIS specifications for various materials such as Ductile Iron (DI), Steel, uPVC, GRP, Cement, Stainless Steel, and other rigid pipe materials. 

The dedicated couplings with double sleeves can prevent end pull-out on HDPE and GRP pipes. Their manufacturing process allows them to produce any size and pressure rating, including non-standard sizes and PN’s.

They are pressure tested to meet pipe standards, and their working pressure is typically two-thirds of the maximum test pressure shown in the dimensions schedules. They are suitable for buried pipelines with adequate thrust blocks or pipelines above ground anchored securely against side thrusts at each joint. 

While the dedicated couplings can handle some expansion and contraction, they do not mechanically prevent the separation of pipe ends under end thrust, which must be prevented by other means. For above-ground pipelines, it is necessary to anchor against the end load. Buried pipelines typically require anchoring only at specific changes in direction and at junctions or stop ends. 

Dedicated Couplings come with gaskets made of EPDM rubber, which are suitable for water and sewerage applications, chemicals, and dilute acids in the temperature range of -50 °C to +90°C. Other sealing materials can be used for higher temperatures, which are available upon request. Laminar’s Gaskets and Epoxy coatings are certified non-toxic and WRAS-approved for potable water in accordance with BS EN 6920.



PN10-PN40 (ANSI CL#150-400)


63.0 to 3,020.0 mm


Water, wastewater, sewage

Flange Drilling


Adaptor Flange

Mild Steel to BS EN10025-2:2004 Grade S235JR. SS is available on request

End Flange

Mild Steel to BS EN10025-2:2004 Grade S235JR. SS is available on request



Stud Bolt

Stainless steel A2, A4 is optional


Stainless steel A2, A4 is optional


Stainless steel A2, A4 is optional


Min 250μ Epoxy Coating RAL 5017 blue, WRAS approved


Pumping stations | Utilities | Wastewater treatment plants | Seawater desalination plants | Power plants | Chemical plants | Industrial


  • ISO 9001 certified
  • In-house production design, utilizing the latest CAD softwares, supported by technical staff and finite element analysis programmes
  • Stringent raw material quality control and certification from international test laboratories
  • Product approvals held for many countries worldwide
  • In house quality control at all stages of production, with Hydrostatic Test Facilities
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