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)
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