Italy

bullet acquedottoSPECIAL VALVES BUTTERFLY VALVE C/W HYDRAULIC CONTROL


MOD. 11040| PN 10 | DN  100-1800|
MOD. 11041| PN 16 | DN  100-1800|
MOD. 11042| PN 25 | DN  100-1800|

Double eccentric butterfly valve with hydraulic control: by single effect hydraulic piston and closing counterweight or double effect hydraulic piston (opening/closing acting). The valve c/w counterweight can be supplied as safety butterfly valve with mechanical overspeed detector and oleohydraulic control system.

 

 

valvole speciali valvola a farfalla controllo idraulico 1

SPECIAL FEATURES:

Double eccentric butterfly valve with hydraulic control: by single effect hydraulic piston and closing counterweight or double effect hydraulic piston (opening/closing acting). The valve c/w counterweight can be supplied as safety butterfly valve with mechanical overspeed detector and oleohydraulic control system.

 

MATERIALS:

Body, disc, retainer ring:
Cast steel ASTM 216 Gr. WCB (equivalent to Fe510), internal and external epoxy coated on demand ductile iron EN-GJS-500-7/EN 1563 (former to DIN GGG50), internal and external epoxy coated

Shaft and fixing stud bolts on disc:
Stainless steel 1.4021/EN ISO 10088 (equivalent to UNI X20Cr13 or AISI420)

O-Rings and disc sealing:
Rubber

Sealing seat:
Austenitic nickel-chromium stainless steel (equivalent quality to AISI304)

Counterweight:
Steel

 

 

valvole speciali valvola a farfalla controllo idraulico 2All metal, rubber, and coatings used have been designed for contact with water for human consumption, pursuant to the terms of Italian Health Ministry decree n° 174, dated 6/4/2004.


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