2/2 Hydraulic Operated Cartridge

Directional Control Valves

SD6H-A3

HA 4052

03/2012

 Hydraulic operated cartridge valve

 Two position Valves

 Two ranges of opening pressure

 Adjusting of the pressure needed for shifting

 External Drain of spring Aren - stable setting

2I11

2I12

HEX 6

HEX 24

HEX 6

HEX 27

SD6H-A3/2I11-6

SD6H-A3/2I12-13

SD6H-A3 / -

2/2 Hydraulic Operated Cartrige

Directional Control Valves

Functional symbols

Refer to the table with functional symbols

Cracking pressure

6 10 - 60 bar

13 35 -130 bar

Seals

No designation Standard (NBR)

V Viton ( FPM)

Functional Symbols

Designation Symbol Designation Symbol

2I11 2I12

The valve allows partitioning of the working ﬂuid ﬂow by

a slide. The slide moves in a steel housing and is adjus-

ted by the pressure of the working ﬂuid acting on the front

surface of the slide (X). The pressure required to changeo-

ver the slide is adjustable by pressing the spring adjusting

screw. The transfer of the force exerted by the spring to the

slide through hardened steel ball in the axis of the motion

greatly reduces the effect of radial forces on the slide and

its jamming in the housing. The valve is available in two

interconnecting versions. The basic position of the slide

allows the ﬂow through valve P→S (2I11) or vice versa

the valve is closed (2I12). The liquid from the space of the

spring is drained through an external outlet (Y) and thus

cannot inﬂuence the magnitude of the set pressure.

In basic version the valve body and the setting screw are

zinc coated.

Ordering Code

3/4-16 UNF • pmax 350 bar • Qmax 30 L/min

HA 4052

Cartridge thread 3/4-16 UNF - 2A

Cavity number (see datasheed HA 0029) 288009

Maximum ﬂow L/min 30

Max. operating pressure bar 350

Cracking pressure

bar

6 13

10 - 60 35 - 130

Pressure drop bar viz ∆p-Q Charakteristic

Hydraulic ﬂuid Hydraulic oils of power classes (HL, HLP) to DIN 51524

Fluid temperature range for standard sealing (NBR) °C -30 ... +100

Fluid temperature range for Viton sealing (FPM) °C -20 ... +120

Maximum degree of ﬂuid contamination Class 21/18/15 according to ISO 4406 (2006)

Weight kg 0,280 0,390

Valve tightening torque Nm 30+2

Nut tightening torque Nm 10

Mounting position optional

Technical Data

∆p-Q Characteristic Measured at ν= 32 mm

/ s

Caution!

0 2 4 6 8 10 12 14 16 18 20 22 24 25

Connection Direction

1 2I11 P→S

1 2I12 P→S

Flow Q [L/min]

Pressure drops ∆p [bar]

• The packing foil is recyclable.

• The technical information regarding the product presented in this catalogue is for descriptive purposes only. It should

not be construed in any case as a guaranteed representation of the product properties in the sense of the law.

ARGO-HYTOS s.r.o. CZ - 543 15 Vrchlabí

tel.: +420-499-403111, fax: +420-499-403421

e-mail: sales.cz@argo-hytos.com

www.argo-hytos.com

Subject to alteration without notice !