Danfoss CP461-1 Technical Information

Pilot Operated Check Valves Technical Information

8

Seals

Seals included

r[

]

Housing and po

O

Pilot to Close

CP461-1

OPERATION

SPECIFICATIONS

DIMENSIONS

mm [in]

This valve is a pilot-to-close check valve.

Theoretical performance

psi bar

203

174

145

116

87

58

29

154 SUS (33 cSt) hyd. oil @ 100° F (38° C)

14

12

10

8

6

Press ure drop

4

2

0

40L/min

21.1 31.7 42.3 52.

10.6US gal/min

free flow

80 120 160 200

Flow

Cross-sectional view

Schematic

Specications

Rated pressure 210 bar [3000 psi]

Rated ow at 7 bar

[100 psi]

Leakage 6 drops/min @

Weight 0.21 kg [0.47 lb]

Pilot ratio 2.3:1

Cavity CP12-3S

Note: A piston seal requires a 4.5 bar [65 psi] or

greater return spring.

1-1/16-12 UN-2A

60 l/min

[16 US gal/min]

Rated pressure

ORDERING
INFORMATION

1

2

3

55.9

[2.20]

CP461-1-B-12S -065-0

Seal kit
B=Buna-N 120335
V=Viton 120336

rtsHousing P/N

0=No Housing No Housing
4B =Al, 1/2 BSP CP12-3S-4B/2B
6B =Al, 3/4 BSP CP12-3S-6B/2B

10S =Al, #10 SAE CP12-3S-10S/4S
12S =Al, #12 SAE CP12-3S-12S/4S

ther housings available

12.7

[0.50]

ht1.25 in

68-75 N.m

[50-55 lbf.ft]

Piston seals

0=No seals
S=

Crack
Pressure

ba

065=4.48 [65]

psi]

BC332375625108en-000101 • February 2020

PO - 18