We reserve the right to change specifications without notice. KOHU-1-June 2012 www.caproni.bg

List: KOHU-1-June 2012

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DESCRIPTION DIMENSIONS

PILOT OPERATED CHECK VALVE

KOHU...-...

KOHU *** - ***

Check valve with

hydraulic operation

Connecting threads: G1/4 - 1/4

G3/8 - 3/8

G1/2 - 1/2

Modification: normal version - omit

see table of dimensions L

TECHNICAL DATA

Max. Pressure 320 bar

Rated flow KOHU1/4 12 l/min

KOHU3/8 20 l/min

KOHU1/2 45 l/min

KOHU1/4-K1 12 l/min

KOHU3/8-L 20 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

-temperature -20...+80 C

ORDERING CODE

SYMBOL ORDERING CODE

ORDERING CODE

Check valves with

hydraulic operation for

pipe mounting-

KOHU...

Hydraulically operated

check valve is designed to

allow working liquid passing

in one direction freely (U to

P , U to P ) and at

1 2 2

availability of control signal

in the opposite direction (P

to U , P to U ). The valve

1 2 2

ensures hydraulic “locking”

of the hydraulic cylinders ,

i.e. Providing their stability

under load at neutral

position of the directional

control valve.

APPLICATIONS

P T

A B