Nominal diameter DN50 ~ 2000mm
Nominal PN0.6~ 2.5mpa
Drive mode gas transmission, electric transmission
Design criteria GB / T12238-1989 JB / T8692-1998
Flange standard GB / T9115.1-2000
Structural length standard GB / T12221-1989
Pressure test GB / T13927-1992; JB / T9092-1999