In the range of Dallai products it is even possible to find the oldest type of the Italian quick couplings for irrigation. The M type is actually completely interchangeable with the original Mellini Martignoni. This quick coupling is available i 5 different size from Ø60 to Ø150. The M style couplings made in steel and aluminium assure the complete safety in different applications like irrigation, mining and tunneling, delivery of compressed air and waste water. Dallai M style couplings can be easily and quickly assembled with 3 manual movements, assuring a fitness to the most various situations thanks to a deviation angle up to 30 degrees an to a working pressure till 15 bar.