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MODEL
RVBB
Normally closed modulating element valve with relief function
CAPACITY: 20 L/min. / CAVITY: T-163A
NOTE: DATA MAY VARY BY CONFIGURATION. SEE CONFIGURATION SECTION.
Three-port normally closed modulating elements with relief provide two functions when combined with an external
orifice. The mainstage is a bypass compensator that controls a priority flow into the circuit, determined by the
external orifice. Input flow in excess of the priority flow is bypassed to tank (port 2). If the inlet (port 1) pressure
rises to the valve setting, the valve operates as a normal relief valve.
TECHNICAL DATA
Cavity T-163A
Series 0
Capacity 20 L/min.
Factory Pressure Settings Established at 15 L/min.
Maximum Operating Pressure 350 bar
Response Time - Typical 10 ms
Maximum Valve Leakage at 110 SUS (24 cSt) 30 cc/min.@70 bar
Adjustment - No. of CW Turns from Min. to Max. setting 5
Valve Hex Size 19,1 mm
Valve Installation Torque 27 - 33 Nm
Adjustment Screw Internal Hex Size 4 mm
Locknut Hex Size 15 mm
Locknut Torque 9 - 10 Nm
Seal kit - Cartridge Buna: 990163007
Seal kit - Cartridge Polyurethane: 990163002
Seal kit - Cartridge Viton: 990163006
Model Weight 0.11 kg.
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RVBB
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(L)CONTROL
L Standard Screw Adjustment
C Tamper Resistant - Factory Set
K Handknob
(A)ADJUSTMENT RANGE
A 75 - 3000 psi (5 - 210 bar), 1000 psi (70
bar) Standard Setting
B 75 - 1500 psi (5 - 105 bar), 1000 psi (70
bar) Standard Setting
C 75 - 6000 psi (5 - 420 bar), 1000 psi (70
bar) Standard Setting
N 75 - 800 psi (5 - 55 bar), 400 psi (28
bar) Standard Setting
Q 75 - 400 psi (5 - 28 bar), 200 psi (14
bar) Standard Setting
W 75 - 4500 psi (5 - 315 bar), 1000 psi (70
bar) Standard Setting
(N)SEAL MATERIAL
N Buna-N
V Viton
TECHNICAL FEATURES
Compensating pressure for all ranges is 50 psi (3,5 bar).
Explanation of the performance curve: The X axis is system pressure. The Y axis shows the pressure differential that the valve creates across the control orifice.
The curves represent various bypass flows (pump flow minus control flow). The capacity and performance of this valve is determined by the bypass flow, control
flow is not a factor.
PERFORMANCE CURVES
Model Code Example: RVBBLANCONFIGURATION OPTIONS
