Guillemin symmetrical couplings

Our Guillemin couplings

The symmetrical Guillemin coupling is Pathel Industrie’s great speciality, we are producing one of the widest ranges on the market, with top quality couplings. These couplings, also called fire-fighting couplings, connect with a locking system also called a ring; which slides through the lugs of the opposite coupling. The two half-symmetrical couplings must have a locking system so that the assembly works.

A half-coupling consists of a thick body for a better resistance to abrasion. There is a groove inside this body, with a square gasket providing perfect sealing. This symmetrical coupling also has two reinforced lugs for better resistance to impact or two parts which are mounted on a grip collar, and a locking ring which turns freely and has two clamping raisings, the locking ring being held by a circlip.

Pathel Industrie couplings are installed with NRB gaskets.

Available materials

Stainless steel
Brass
Polypropylene

Our range offers

Ribbed socket coupling
Ribbed socket coupling

for a better hose grip

Threaded male and tapped female couplings
Threaded male and tapped female couplings

with or without a BSP (used in Europe) or NPT (especially used in the US and in UK) locking thread

Butt weld (BW) fittings
Butt weld (BW) fittings

or, upon request, machined socket weld (SW) fittings.

Our symmetrical
Blank cap
Blank cap

with or without locking system, and also with a handle.

Reducer
Reducer

for switching from one size to another.

Transformation
Transformation

for switching from a symmetrical coupling to another family of couplings: quick-release, Storz

Conformity with manufacturing standards

  • NF E 29.572 / NF EN 14420-8 Guillemin symmetrical half-couplings working pressure 16 bars
  • NF E 54.064 Guillemin symmetrical half-couplings working pressure 6 bars

Fields of application

These half-couplings are used in vessel transfer, suction or discharge of liquids and powders in different application fields:

  • Industry
    Recommended materials: aluminium, stainless steel, bronze, polypropylene.
  • Fire-fighting 
    Recommended materials: bronze, aluminium
  • Oil industry:
    Recommended materials: bronze, stainless steel, aluminium.
  • Chemical industry:
    Recommended materials: Stainless steel, polypropylene.
  • Pharmaceutical industry:
    Recommended materials: Stainless steel, polypropylene.
  • Food industry:
    Recommended material: Stainless steel.
  • Petrochemistry:
    Recommended materials: Stainless steel, aluminium, polypropylene.
  • Construction:
    Recommended materials: aluminium, bronze.
  • Maintenance:
    Recommended materials: aluminium, stainless steel, bronze, polypropylene.
  • Agriculture:
    Recommended material: galvanised steel
  • Irrigation:
    Recommended material: galvanised steel
  • Steel mills:
    Recommended material: galvanised steel
  • Bulk transport in cisterns for liquids and powders: Recommended materials: aluminium, stainless steel, bronze, polypropylene.