CAST iron : Flanged. . . 1/2” to 16” DN15–DN400
ASTM A48 Class 35C
or ASTM A126 Class B
DUCTILE iron SG IRON : Screwed . . . 1/2” to 2” DN15–DN50
ASTM A395: 65-45-12
Flanged . . . 1/2” to 6” DN15–DN150
ASTM A395: 60-40-18
or ASTM A395
CASTSTEEL : Flanged . . . 1/2” to 4” DN15–DN100
ASTM A216 WCB
BRONZEGUNMETAL : Screwed . . . 1/2” to 3” DN15–DN80
ASTM B62
or ASTM B584 Alloy 836
Flanged . . . 1/2” to 4” DN15–DN100
STAINLESSSTEEL : Screwed . . . 1/2” to 3” DN15–DN80
Flanged . . . 1/2” to 6” DN15–DN150
ASTM A743: CF-8M
or ASTM A351: CF-8M
Diaphragm valves operate differently to traditional gate, ball, and globe valves. A diaphragm made from rubber, thermoplastic, or Teflon is pressed against the seating section of the pump body to restrict flow. Maintenance can be carried out without removing the valve body from its installed position.