1.To reduce from a large diameter pipe to a smaller diameter pipe, a socket must be used in conjunction with a reducer. For example, to reduce from pipe diameter of 50 mm to 25 mm, a socket 50 mm must first be attached to the 50 mm pipe followed by a reducer 50/25 mm and followed by the 25 mm pipe.

2.When using Vesbo fittings with metal threaded parts, white Teflon sealing tapes must be applied adequately to prevent leakage from threads.

3.Overtightening of fixtures to Vesbo fittings with metal parts may cause damages and leakage problems. Care must be taken to prevent overtightening.

4.During fusion welding:

  *Fusion parts must be free from sand and particles.

  *Welding time and depths must be observed.

  *Do not twist and turn pipes and fittings while inserting and detaching from welding machine.

5.Metal plugs must be used during pressure tests.