Basic information of Backflow Preventers(Low Pressure)
This valve can strictly prevent the occurrence of backflow pollution, is a safe device to ensure the hygiene of drinking water.
Part |
Material |
Standard |
Body |
Ductile Iron |
EN 1563/DIN 1693 |
Ductile Iron |
EN 1563/DIN 1693 |
|
Stem |
Stainless Steel 431 |
EN10088-1/ASTM A959 |
Seat |
Stainless Steel 431 |
EN10088-1/ASTM A959 |
Diaphragm |
EPDM / NBR |
ISO 4633 |
Disc |
Stainless Steel 431 |
EN10088-1/ASTM A959 |
For the materials options not listed, consult factory. ZECO manufactures valves in more than 50 different alloys. |
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