Danfoss VSB 12-EN Technical Information

Relief Valves Technical Information

1000

2000

3000

4000

5000

5140

90.7

[3.57]

38 mm

64-70 Nm•
[47-52 lbfft]•

41.3

[1.63]

2

1

M 33 x 2

S

Dierential Area
VSB 12-EN

OPERATION

SPECIFICATIONS

DIMENSIONS

This is a direct-acting, dierential area, poppet-type relief valve that relieves from 2 to 1
with an integral free-ow check from 1 to 2.

Theoretical performance Schematic

psi bar

0

26 mm °C [° F]

400

300

200

100

0

l/min

²/sec (cSt) [124 SUS] @ 50 122

Minimum setting

35 70 10

010203035

Flow

US gal/min

v

lue

a

Specications

Rated pressure 350 bar [5075 psi]
Rated ow 140 l/min [37 US gal/min]
Weight 0.60 kg [1.32 lb]

Cavity NCS12/2

Cross-sectional view

ORDERING
INFORMATION

etting range

1 = 25 - 170 bar [363 - 2466 psi]

2 = 70 - 270 bar [1015 - 3916 psi]
3 = 105 - 350 bar 1523[- 5076 psi]

BC332375370104en-000101 • February 2020

VSB 12-EN - 1 - 00 -V - XXX

Omit = Buna-N

Housing and portsHousing P/N

00 =No Housing No Housing
DG1/2=AL,1/2 BSP NCS12/2-DG-1/2
DG3/4=AL,3/4 BSP NCS12/2-DG-3/4
DG8S =AL, #8 SAE NCS12/2-DG-8S
DG12S= AL,#12 SAE NCS12/2-DG-12S
Other housings available

Seals

V =Viton

Seal Kit

230000470
230000120

RV - 25