RV - Relief Valves Catalog
RV - 28
Relief Valves Catalog
11141711 • Rev AB• April 2014
ORDERING
INFORMATION
SPECIFICATIONS
DIMENSIONS
OPERATION
0
100
200
300
400
0
1000
2000
3000
4000
5000
psi bar
35 70 10
5140
Minimum setting
v
lue
l/min
a
010203035
26 mm °C [° F]
²/sec (cSt) [124 SUS] @ 50 122
US gal/min
Flow
1
2
ATM.
127.9
[5.03]
64-70 Nm•
[47-52 lbfft]•
38 mm
41.1
[1.62]
2
1
M 33 x 2
VSB 12-CN - 1 - 00 -V - XXX
Seals
V =Viton
Seal Kit
230000120
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
Omit = Buna-N
S
etting range
1 = 25 - 170 bar [363 - 2466 psi]
2 = 70 - 270 bar [1015 - 3916 psi]
3 = 105 - 350 bar 1523[- 5076 psi]
230000470
To order this valve with a specific factory setting,contact your Comatrol representative
This is a direct-acting, dierential area, atmospherically-vented, poppet-type relief valve
that relieves from 2 to 1 with an integral free-ow check from 1 to 2.
Rated pressure 350 bar [5075 psi]
Rated ow 140 l/min [37 US gal/min]
Weight 0.75 kg [1.65 lb]
Cavity NCS12/2
Theoretical performance Schematic
Cross-sectional view
Specications
VSB 12-CN
mm [in]
Dierential Area
VSB 12-CN