Size Range: DN65-DN250
Face to Face: GB/T 12221 series 1, EN558-1 series 1
Flange Standard: EN1092-2 PN16
Main Parts:
Body/Bonnet: Ductile iron
Stem/Spring: SS304
Disc/Cavity/Plate: SS304
Sealing: Rubber
Fasteners: Galvanized steel
● The pressure difference range can be set.
● Segmented design of pressure difference control range (high/low pressure difference model), with higher precision in differential pressure control.
● Beautiful and reliable design.
● Compact design, easy to install, exhaust hole design allows for easy removal of internal air.
● Stable accessories.
● High performance springs and diaphragms.
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