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SPECIAL VALVES SPECIAL VALVES 11

BUTTERFLY VALVE C/W
HYdraulic control

MOD. 11040 PN 10 DN 100 -1600
MOD. 11041 PN 16 DN 100 -1600
MOD. 11042 PN 25 DN 100 -1600

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.

R

09
0
08 01 H

L1 07 02 M1 M2
06 05 04 03
h min
L2

09 0

08 01
07 02
06 05 04 03

H

L2 M1 M2

Materials O-Rings and disc sealing:
Rubber
Body, disc, retainer ring:
Cast steel ASTM 216 Gr. WCB (equivalent to Fe510), Sealing seat:
internal and external epoxy coated Austenitic nickel-chromium stainless steel
on demand ductile iron EN-GJS-500-7/EN 1563 (former (equivalent quality to AISI304)
to DIN GGG50), internal and external epoxy coated
Counterweight:
Shaft and fixing stud bolts on disc: Steel
Stainless steel 1.4021/EN ISO 10088
(equivalent to UNI X20Cr13 or AISI420)

info@raci.it - www.raci.it - Tel. +39 02 262.351 11.5 © RACI srl - ISO 9001 - Catalog Ed 10/2016