We reserve the right to change specifications without notice. KOHU-S-1-June 2012 www.caproni.bg
List: KOHU-S-1-June 2012
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DESCRIPTION DIMENSIONS
PILOT OPERATED CHECK VALVE
KOHU...-S
KOHU *** - S
Check valve with
hydraulic operation
Connecting threads: G1/4 - 1/4
G3/8 - 3/8
G1/2 - 1/2
Modification
TECHNICAL DATA
Max. Pressure 320 bar
Rated flow KOHU1/4-S 12 l/min
KOHU3/8-S 20 l/min
KOHU1/2-S 45 l/min
Cracking pressure (for check valve) for all types 0,5 bar
Area ratio (check valve seat/pilot piston) for all types 1/4
Working liquid-hydraulic oils with characteristics:
-viscosity 10...400 cSt
-degree of filtration 0,025 mm
o
-temperature -20...+80 C
ORDERING CODE
SYMBOL ORDERING CODE
ORDERING CODE
ORDERING CODE
Check valves with
hydraulic operation for
pipe mounting-
KOHU...-S
Hydraulically operated
check valve is designed to
allow working liquid passing
in one direction freely (P to
2
P ) and at availability of
1
control signal in the
opposite direction (P to P ).
1 2
The valve ensures
hydraulic “locking” of the
hydraulic cylinders , i.e.
providing their stability
under load at neutral
position of the directional
control valve.
P1
P2
U1
Ø
Ø
Ø
APPLICATIONS
P1
P T
U1
P2
A B
