Article: 76-80
Flanges: UNI EN 1092-2 PN 10-16-25-40-64
Fig. 77 flanged PN 16; fig. 78 flanged PN 25, fig. 79 flanged PN 40, fig. 80 flanged PN 64
Design EN1074-1, EN 1074-5, EN 1092-2
Installation: horizontal
APPLICATIONS ° Water supply ° Drinking water ° pumping stations ° hydropower plants ° dams
Epoxy painting suitable for potable drinking water applications
Plunger valves are used mainly for water flow control and regulation in the pipeline, as well as discharge valves in dams. The axial movement of the piston allows flow regulation. Plunger needle valves perform very well, with silent movement, avoiding noises, water hammer effect and cavitation. Low pressure drops for opening more than 50%, while higher pressure loss happens whenever opening is lower than 40%.
Executions: gear box, electric actuator, hydraulic cylinder,hydraulic cylinder with counterweight lever.
Materials
body/bonnet/disc
ductile iron GGG50, EN-GJS-500
piston
stainless steel aisi 304
seal ring
stainless steel aisi 304
stem
stainless steel aisi 420
seal - o ring
rubber
plug - ogive
stainless steel
painting
epoxy 200 mcr min.
| DN | L mm. | D mm. | Weight kg. |
|---|---|---|---|
| 80 | 260 | 200 | 31 |
| 100 | 300 | 220 | 38 |
| 125 | 300 | 250 | 41 |
| 150 | 350 | 285 | 67 |
| 200 | 400 | 340 | 106 |
| 250 | 450 | 405 | 145 |
| 300 | 500 | 460 | 195 |
| 350 | 550 | 505 | 290 |
| 400 | 600 | 565 | 335 |
| 450 | 650 | 615 | 495 |
| 500 | 700 | 670 | 490 |
| 600 | 800 | 780 | 750 |
| 700 | 900 | 895 | 1005 |
| 800 | 1000 | 1015 | 1330 |
| 900 | 1100 | 1115 | 1770 |
| 1000 | 1200 | 1230 | 2290 |
| 1200 | 1400 | 1455 | 3575 |
| 1400 | 1600 | 1675 | 5030 |