Description
These cartridge valves are used to control oil pressure flow rate or direction and are designed for insertion into cavities machined as per ISO 7368. These cartridges are available in two area ratios, four cracking pressures and seven poppet styles. The covers are available for different functions like directional control, pressure control, unloading, flow control etc. CARTRIDGE VALVE
Section

Relief Cartridge orifice

Size Tap Orifice Size (mm)
NG 16 1/16" NPT 0.8
NG 25 1/16" NPT 0.8
NG 32 1/16" NPT 0.8
NG 40 1/8" NPT 0.8

 

Unit Dimensions

Cartridge and cover

Size

16

25

32

40

H

35

40

50

60

L

56

72

85

105

D

32

45

60

75

S

65

85

102

125

 
Cavity machining details

Designation

Size 16

Size 25

Size 32

Size 40

b1

 

65

85

102

125

b2

0.2

25

33

41

50

d1

H8

32

45

60

75

d2

H8

25

34

45

55

d3

 

16

25

32

40

d4

min.

16

25

32

40

max.

25

32

40

50

d5

max.

4

6

8

10

d6

 

M8

M12

M16

M20

d7

H13

4

6

6

6

m1

0.2

46

58

70

85

m2

0.2

23

29

35

42.5

m3

0.2

10.5

16

17

23

t1

0.1 0.0

43

58

70

87

t2

0.1 0.0

56

72

85

105

t3

 

11

12

13

15

t4 (for d4)

min.

34

44

52

64

max.

29.5

40.5

48

59

t5

 

20

30

30

30

t6

 

20

25

35

45

t7

 

2

2.5

2.5

3

t8

 

2

2.5

2.5

3

t9

min.

0.5

1

1.5

2.5

t10

 

10

10

10

10

u

 

0.03

0.03

0.03

0.05

w

 

0.05

0.05

0.1

0.1

x

Ra

1.6

1.6

1.6

1.6

 

Technical Specifications
Construction Seat Type
Mounting Type Insert in cavity conforming to DIN 24342, ISO 7368
Mounting Position Optional
Direction of flow Cartridge Type 1 : 1 ratio -- A to B
1 : 1.5 ratio -- A to B or B to A
Check Valve -- A to B
Relief Valve -- A to B
Operating pressure at port A, B, X, Y, Z1, Z2 350 bar
Area ratio 1 : 1      --  P type
1 : 1.5   --  K type
1 : 1      --  R type
1 : 1.5   --  C type
Cracking Pressure

Spring Type

1 : 1

1 : 1.5

A to B A to B B to A

Cracking Pressure in bar

X

0

0

0

A

0.3

0.45

0.9

B

0.6

0.9

1.8

C

1.2

1.8

3.6

D

2.3

3.5

7.1

Hydraulic Medium Mineral oil.
Viscosity range 10 cSt to 380 cSt.
Fluid Temperature range -10 C to +80 C.
Fluid cleanliness requirement As per ISO 16/13.
Pilot volume (cm3)

Size

16

25

32

40

With cushion nose

1.6

4.9

9.8

22.2

With cushion nose

1.6

3.8

7.4

16.6

Flow handling capacity Refer performance curve

Performance Curves

Oil used : ISO VG 68, Viscosity : 68 cSt @ 40 C, Temp. @ test : 50 C

 

Oil Used : VG 46, Temp. : 28 C, Test Date :14-10-2003 

Note: The graph is applicable for Flow from A B and B A, with a variation of +/- 1 bar.

Model: CV16KAO-*

 

 

Oil Used : VG 46, Temp. : 28 C, Test Date :14-10-2003 

Note: The graph is applicable for Flow from A B and B A, with a variation of +/- 1 bar.

Model : CV25KAO-*

Ordering Informations

Cartridge 4
Size
Area ratio & Special function
Spring Type

1 : 1

1 : 1.5

Spring
Type

A to B A to B B to A
Cracking Pressure in bar

0
0.3
0.6
1.2
2.3

0
0.45
0.9
1.8
3.5

0
0.9
1.8
3.6
7.1

X
A
B
C
D

Poppet Construction

Design Code Subject to Change.
Installation dimension remain
same for design code 10 thru 19
10

Product Code

 


Cartridge cover details

Symbol function Size 16 Size 25 Size 32 Size 40



Standard Cover.


Brief Code and Reference Sheet No.
CVC16*** CVC25*** CVC32*** CVC40***
p03417 p03420 p03420 p03420



Relief Cover.


Brief Code and Reference Sheet No.
CVC16R*** CVC25R*** CVC32R*** CVC40R***
p03418 p03421 p03418 p03418



Relief Cover with provision of solenoid unloading.


Brief Code and Reference Sheet No.
CVC16RA** CVC25RA** CVC32RA** CVC40RA**
p03418 p03418 p03418 p03418



Cover for 2 manual pressure setting, electrically selectable.


Brief Code and Reference Sheet No.
CVC16RSA** CVC25RSA** CVC32RSA** CVC40RSA**
p07032 p07032 p07032 p07032



Relief cum unloader, unloading by pilot pressure.


Brief Code and Reference Sheet No.
CVC16U*** CVC25U*** CVC32U*** CVC40U***
p03419 p03419 p03419 p03419



Relief cum unloader, unloading by pilot pressure with
provision for additional solenoid unloading


Brief Code and Reference Sheet No.
CVC16UA*** CVC25UA*** CVC32UA*** CVC40UA***
p03419 p03419 p03419 p03419



Cover with provision for spool type D.C.V. solenoid
operated control port normally connected to A.


Brief Code and Reference Sheet No.
CVC16DEA*** CVC25DEA*** CVC32DEA*** CVC40DEA***
p03428 p03428 -- p03428


Cover with provision for spool type D.C.V. solenoid operated
control port normally connected to A, with parallel
connection available at Z1.

Brief Code and Reference Sheet No.
CVC16DEAZ1* CVC25DEAZ1* CVC32DEAZ1* CVC40DEAZ1*
p03428 p03428 -- p03428



Cover with provision for spool type D.C.V. solenoid operated
control port normally connected to B.


Brief Code and Reference Sheet No.
CVC16DEB*** CVC25DEB*** CVC32DEB*** CVC40DEB***
p03428 p03428 -- p03428


Cover with provision for spool type D.C.V. solenoid operated
control port normally connected to B, with parallel
connection available at Z2.

Brief Code and Reference Sheet No.
CVC16DEBZ2* CVC25DEBZ2* CVC32DEBZ2* CVC40DEBZ2*
p03428 p03428 -- p03428


Cover with provision for spool type D.C.V. solenoid
operated control port normally connected to port
A and port B, is available at Z2.

Brief Code and Reference Sheet No.
CVC16DEABZ2* CVC25DEABZ2* CVC32DEABZ2* CVC40DEABZ2*
p03428 p03428 -- p03428


Cover with provision for spool type D.C.V. solenoid operated
control port normally connected to port A with parallel connection
available at Z1 and port B is available at Z2.

Brief Code and Reference Sheet No.
CVC16DEAZ1BZ2* CVC25DEAZ1BZ2* CVC32DEAZ1BZ2* CVC40DEAZ1BZ2*
p03428 p03428 -- p03428


Cover with provision for spool type D.C.V. solenoid operated
control port normally connected to port B and port A available at Z1.

Brief Code and Reference Sheet No.
CVC16DEBAZ1* CVC25DEBAZ1* CVC32DEBAZ1* CVC40DEBAZ1*
p03428 p03428 -- p03428


Cover with provision for spool type D.C.V. solenoid operated
control port normally connected to port B with parallel connection
available at Z2 and port A is available at Z1.

Brief Code and Reference Sheet No.
CVC16DEBZ2AZ1* CVC25DEBZ2AZ1* CVC32DEBZ2AZ1* CVC40DEBZ2AZ1**
p03428 p03428 -- p03428

 




Cover with built in change over valve.


Brief Code and Reference Sheet No.
CVC16S* CVC25S* CVC32S* CVC40S*
p03424 p03424 -- p03424

 




Cover with built in change over valve with provision for fitting a
directional spool valve, control port normally connected to port A.


Brief Code and Reference Sheet No.
CVC16SDEA*** CVC25SDEA*** CVC32SDEA*** CVC40SDEA***
-- p03477 -- --

 




Cover with built in change over valve with provision for fitting a
directional spool valve,control port normally connected to port B.


Brief Code and Reference Sheet No.
CVC16SDEB*** CVC25SDEB*** CVC32SDEB*** CVC40SDEB***
-- p03477 -- --

 




Cover with built in change over valve with provision for fitting a directional
spool valve, port A of Shuttle valve is connected to port A of D.C.V.


Brief Code and Reference Sheet No.
CVC16SDEAA** CVC25SDEAA** CVC32SDEAA** CVC40SDEAA**
p03495 p03495 p03495 p03495

 




Cover with built in change over valve with provision for fitting a directional
spool valve, port A of Shuttle valve is connected to port B of D.C.V.


Brief Code and Reference Sheet No.
CVC16SDEAB** CVC25SDEAB** CVC32SDEAB** CVC40SDEAB**
p03495 p03495 p03495 p03495

 




Cover with stroke limitter


Brief Code and Reference Sheet No.
CVC16T** CVC25T** CVC32T** CVC40T**
p03438

 




Cover with check valve mounting.


Brief Code and Reference Sheet No.
CVC16Y*** CVC25Y*** CVC32Y*** CVC40Y***
p03430 p03471 -- --

 




Cover with built in pilot operated check and stroke limitter.


Brief Code and Reference Sheet No.
-- -- CVC32*PCT* --
-- -- -- --

 




Cover with built in change over and pressure switch.

Brief Code and Reference Sheet No.
CVC16S*Z1 CVC25S*Z1 -- --
p03432 p03470 -- --

 




Cover for proportional relief valve.


Brief Code and Reference Sheet No.
CVC16PR** -- -- --
-- -- -- --

 




High pressure cracking cover


Brief Code and Reference Sheet No.
CVC16AC*** CVC25AC*** CVC32AC*** CVC40AC***
-- -- -- --

 

All rights reserved.
Subject to revision.

Regd. office & Works :
78-80, Machhe Industrial Estate, Machhe, Belgaum - 590 014. Karnataka, INDIA. 
Phone :
+91-0831-2411001.  Fax : +91-0831-2411002 ,  
E-mail :
 
polyhydron@vsnl.com ,  Website :  www.polyhydron.com

 

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Polyhydron Pvt. Ltd, Belgaum, India.

Updated on February 04, 2015 03:05 pm .