DN150-DN600

PN200-320

Manufacture and Acceptance Standard

1. Manufacturing and acceptance technology conform to E101 and ?NB/T47044.

2.Valve tests conform to NB/T47044 and JB2640-81.and valve sealing

?tests as well as upper sealing testing pressure conform to NB/T47044.

3.Structure and length conform to E101 or as specified bycustomer.

4.Welding slope conforms to the Power ln-dustrial Administration ?Standards 78DG or as specified by customer.