Ductile iron “noozle” check valves PN 10 and 16

Valvotubi venturi noozle check valve art.116
Article: 116
Flanges: UNI EN 1092-2 PN 10 - 16
Design DIN 3356 Installation: horizontal / vertical / oblique
APPLICATIONS ° Water supply ° Heating – conditioning systems ° Pumping stations ° Industry
Epoxy paiting suitable for drinking water applications.
 

The “noozle” check valves should be used in order to grant a good performance of the anti-hammer effect. These valves are noozle type, they ensure a rapid, shock free closing before any change in the flow direction, and a noiseless operation, as well as low water losses thanks to their design. For this reason, “noozle” non return valves are suitable for both vertical, horizontal and oblique installation in those critical and severe pumps and compressor applications.

 

Materials
body ductile iron GGG40, EN-GJS-400
disc ductile iron GGG40 or st.st.304
spring  stainless steel
stem  stainless steel X 20 CR 13
gasket  asbestos free
painting epoxy
 
DN H mm.  D mm. PN 10 / 16 Weight kg.
 40  120  150  6.5
 50  120  165  7.5
 65  150  185  11.5
 80  180  200  13
 100  240  220  18.5
 125  300  250  29
 150  350  285  41
 200  400  340  69.5
 250  450  395 /405  106.5
 300  500  445 / 460  153
 350  600  505 / 520  216
 400  700  565 / 580  294.5
450 750 615/640 490
500 850 670/715 780
600 1000 780/840 900
DN Nominal pressure Test pressure Mpa Max working pressure Mpa
mm BAR body seat 90°C
40-600 16 2,4 1,76 1,6
40-600 10 1,5 1,1 1,0