COUNTERBALANCE
,
STANDARD POPPET TYPE
DIFFERENTIAL AREA
SUN CAVITY INTERCHANGE
VBSN-08U T-11A 04.52.30 - X - 20 - Z
Rev.0605 Page. AB5.020
When pressure at 2 rises above the spring bias pressure, the check seat is pushed
away from the piston and flow is allowed from 2 to 1. When load pressure at 1 rises
above the pressure setting, the direct-acting, differential area relief function is
activated and flow is relieved from 1 to 2. With pilot pressure at 3, the pressure
setting is reduced in proportion to the stated ratio of the valve, until fully open with
free-flow from 1 to 2. The spring chamber is drained to 2, and any back-pressure at
2 is additive to the pressure setting in all functions.
SPRINGS
Z
Adj. press.
range psi
(bar)
Press. increase
psi / turn
(bar/turn)
Standard setting
psi (bar)
(Q=5 l/min)
20
1000-3000
(70-210)
1958
(135)
2900
(200)
X = 03
35
2000-5000
(140-350)
2842
(196)
5000
(350)
20
1000-3000
(70-210)
754
(52)
2900
(200)
X = 10
35
2000-5000
(140-350)
1291
(89)
5000
(350)
TECHNICAL DATA
Pressure setting: at least 1.3 times the load induced
pressure
Max. pressure: 5000 psi
(350 bar)
Max. flow: 16 gpm (60 l/min)
Cavity : SUN T-11A
External seal kit : see page A11.211
Installation torque : 30-37 ft-lb (40-50 Nm)
Weight: 0.419 lbs (0.190 Kg)
X
PILOT RATIO
03
3 : 1
10
8 : 1
OPTIONS
Ordering code Description
11.04.23.002
Tamper resistant cap
Special settings available. Contact factory authorized
representative for ordering code.
