Express coupling

Express coupling also called raccord express, is a kind of symmetrial half-couplings for water and air which complying with the NF E 29-573 standard.
It is specially used in France as hose connection.
The operation of this type of coupling is pushing two together and rotating to form a close seal.
Types
*raccord express avec male joint (express with male thread)
*raccord express avec femelle joint (express with female thread)
*bouchon (cap)
*raccord express cannele collerette (express with hose tail)
The common material of this type of coupling are stainless and brass (Laition et Inox)