AZ series standard is AWWA C509; Size:DN 50~DN 1000 Pressure:150 psi/200 psi
EZ series standard is DIN3352/BS5163; Size:DN 50~DN 1000 Pressure: PN10/PN16
GD Series is for grooved end piping applications. Size:DN50~DN300 Pressure:PN10/PN16/150 psi/200 psi
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