Quick disconnect couplings

Versatile and fast coupling

  • of various materials
  • as different designs
  • with various connecting possibilities
  • shut-off and no shut-off types



  • brass and nickel-plated brass
  • stainless steel
  • PVDF
  • POM


  • SERTO Flow series 51
  • SERTO Safety series 50
  • series EA/E, H, 25
  • series 20, 21, 22
  • no shut-off, one sided shut-off, double sided shut-off, depending on type

Nominal pressure PN

from 8 bar (PVDF, POM) up to 690 bar (stainless steel series H)

Temperature range

depending on material, material of joints and applications -40°C to +200°C
special: series 25 stainless steel -240°C to +150°C

Compact and high flow rate – The stainless steel quick coupling SERTO Flow Series 51

The SERTO Flow Series 51 coupling is made of stainless steel 1.4571 and equipped with FDA-compliant FKM seals. Its elegant and ergonomic design fits perfectly in the hand, making operating errors practically impossible. Thanks to the new, innovative valve design, a high flow rate is achieved with low pressure drop.

Brochure stainless steel coupling SERTO Flow Series 51

Online Shop stainless steel coupling SERTO Flow Series 51