11

A

P

T











A

T

P

Model S

Model R

Directly Operated Pressure

Reducing Valve

SP2A-B3

HA 5146

09/2013

Functional Description

7/8-14 UNF • p

max

420 bar (6092 PSI) • Q

max

60 L/min (15.85 GPM)

This 3 way direct operated pressure reducing valve is

designed to reduce the system pressure. Due to its

3 way design the valve is also capable of relieving the

secondary pressure. The pressure can be set by an ad-

justment screw (5).

In its initial position the valve allows free ﬂow from

port P to A. The pressure in port A acts on the front

face of the control spool (2) against the spring

(4). When the pressure in port A reaches the set

pressure, the control spool moves into the regu-

lating position and closes the ﬂow from port P to

A u n t i l t h e p r e s s u r e f a l l s b a c k t o t h e s e t p r e s s u r e .

This will maintain a constant pressure in line A. A fur-

ther pressure increase in port A caused by a potential

external force on the actuator will cause the spool to

shift against the spring until the spool opens port T

and allows the oil ﬂow pass to tank.

The valve bush (1) is ﬁxed to the cartridge (3). Un-

coupling the bush from the cartridge makes a trans-

ference of tensions caused by high tightening torques

impossible. In the basic version the valve body and the

adjustment screw are zinc plated.

 High pressure valve up to 420 bar

 Hardened and precision working parts

 Four Optional spring ranges

 Stabile pressure characteristic

over the complete pressure range

 Quiet performance over complete power

range

22

SP2A-B3/

HA 5146

Ordering Code

Technical Data

Directly Operated Pressure

Reducing Valve

7/8-14UNF

Pressure range

3 Up to 30 bar (435 PSI)

8 Up to 80 bar (1160 PSI)

11 Up to 110 bar (1595 PSI)

15 Up to 150 bar (2176 PSI)

Valve size B3

Cartridge cavity 7/8-14 UNF-2A

Flow range L/min (GPM) 0 ÷ 60 (0 ÷15.85)

Max. inlet pressure (port P) bar (PSI) 420 (6092)

Max. output pressure (port T) bar (PSI) 200 (3626)

Regulated pressure bar (PSI) 30 (435) 80 (1160) 110 (1595) 150 (2176)

Working pressure related to ﬂow bar (PSI) see p-Q characteristics

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

Fluid temperature range (NBR) °C (°F) -30 ...100 (-22 ... 212)

Fluid temperature range (FPM) °C (°F) -20 ... 120 (-4 ...248)

Viscosity range mm

2

/s (SUS) 10 ... 500 (49 ... 2450)

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

Weight kg (Ib) 0,26 (0.573)

Maximum valve tightening torque Nm ( lbf.ft) 55+3 (40.57+2.21)

Mounting position unrestricted

Valve body ( data shee HA 0018) SB-B3

Adjustment option

S Inside hexagon 5 mm

R Adjustable handknob

Seals

no designation NBR

V FPM (Viton)

p-Q Characteristics Measured at ν = 32 mm

2

/s (156 SUS)

Safety pressure p [bar(PSI)]

4 Pressure range 15

3 Pressure range 11

2 Presseure range 8

1 Presseure range 3

Flow Q [L /min(GPM)]

-60 -40 -200204

06

0

50

200

150

100

1

3

4

0

(

725)

2901)

(2176)

(1450)

(-15.9 )0( 5.3 )

(-10.6 )

(-5.3 ) (15.9 )(10.6 )

(

2

Reduced pressure p [bar(PSI)]

High performance H

33

HA 5146

∆ p-Q Characteristics Measured at ν = 32 mm

2

/s (156 SUS)

Pressure drop ∆p [bar(PSI)]

Flow Q [L /min(GPM)]

5

4

3

2

1

48,5 (1.91)

26,5 (1.04)

101,5 (4.00)

12,6 (0.50)

17,42 (0.69)

26 (1.02)

7/8-14UNF-2A

15,82

(0.62)

( . )max. 31 122

40



1 57. )

(







Valve Dimensions Dimensions in millimeters (inches)

25

30

20

15

10

5

6050

40

10

20

30

(435)

0

(363)

(290)

(218)

(145)

(73)

(2.6) (5.3) (7.9) (10.6) (13.2) (15.9)

1 Screw for ﬁne ﬂow adjustment -

- inside HEX 5 mm

- anticlockwise rotation = pressure decrease

- clockwise rotation = pressure increase

2 L o c k i n g n u t H E X 1 7 m m

[tightening torque 10+2 Nm (7.4+1.5 lbf.ft)]

3 Spanner size 27 mm

[tightening torque 50+5 Nm (36.9+3.7 lbf.ft)]

4 Sealing: O-ring 19,4 x 2,1

(supplied with valve)

5 S e a l i n g : D u a l s e a l 1 7 , 4 7 x 1 5 , 0 7 x 3 , 1 ; 1 1 , 8 7 x 1 4 , 2 7 x 3 , 1

(supplied with valve)

44

HA 5146

Cavity Dimensions in millimeters (inches)

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

tel.: +420-499-403 111

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

www.argo-hytos.com

Caution!

Spare Parts Dimensions in millimeters

Subject to alteration without notice !

min.30(1.18)

48+0,4(1.88+0.016)

min.45,9(1.81)

37,8+0,4(1.49+0.016)

(0.624/0.627)

(0.687/0.689)

max.22(0.87)

min.14(0.55)

max.37,8(1.49)



24±0,05(0.94/0.95)

min. 34(1.34)

22 (0.87+0.016)+0,4

34,8(1.37+0.016)

max 1(0.04)

min.16(0.63)

90° 10°

±

7/8-14 UNF-2B

15,87+0,05

3,2

A

0,04

A

0,05

A

0,05

1,6

30°

3,2

17,47+0,05

A

1,6

3,2

R 0,2 R 0,2

3

(

,

30°

A

0,05

30° 2°

±

2,5 0.1+0.016)+0,4(

Type Dimensions, quantity Ordering number

O-ring Dualseal - PU

NBR

19.4 x 2.1(1pc) 20143900

17.47 x 15.07 x 3.1(1pc) 24220800

11.87 x 14.27 x 3.1(1pc) 20158500

FPM (Viton)

19.4 x 2.1(1pc) 20144100

17.47 x 15.07 x 3.1(1pc) 24220800

11.87 x 14.27 x 3.1(1pc) 20158500

• 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.