Created on 11/06/2015
c
2015 Sun Hydraulics Corporation See www.sunhydraulics.com for detailed product information 1 of 2
MODEL
RBAA
Direct-acting relief valve - pilot capacity
SERIES 2 / CAPACITY: 2 L/min. / CAVITY: T-3A
Direct-acting, pilot relief cartridges are used to remotely control the pressure setting of other pilot-operated valves.
Because capacity is limited to pilot flow, these valves should be used with other higher flow valves.
TECHNICAL DATA
Maximum Operating Pressure 350 bar
Response Time - Typical 2 ms
Maximum Valve Leakage at 110 SUS (24 cSt) 0,3 cc/min.
Adjustment - Number of Clockwise Turns to Increase Setting 5
Locknut Hex Size 15 mm
Locknut Torque 9 - 10 Nm
Seal kit - Cartridge Buna: 990-203-007
Seal kit - Cartridge EPDM: 990-203-014
Seal kit - Cartridge Polyurethane: 990-003-002
Seal kit - Cartridge Viton: 990-203-006
(L)CONTROL
L Standard Screw Adjustment
C Tamper Resistant - Factory Set
J Capped Screw Adjustment
K Handknob
O Handknob with Panel Mount
Y Tri-Grip Handknob
(A)ADJUSTMENT RANGE
A 25 - 3000 psi (1,7 - 210 bar), 1000 psi
(70 bar) Standard Setting
B 25 - 1500 psi (1,7 - 105 bar), 1000 psi
(70 bar) Standard Setting
C 25 - 6000 psi (1,7 - 420 bar), 1000 psi
(70 bar) Standard Setting
D 25 - 800 psi (1,7 - 55 bar), 400 psi (28
bar) Standard Setting
E 25 - 400 psi (1,7 - 28 bar), 200 psi (14
bar) Standard Setting
W 25 - 4500 psi (1,7 - 315 bar), 1000 psi
(70 bar) Standard Setting
(N)SEAL MATERIAL
N Buna-N
E EPDM
V Viton
MATERIAL/COATING
Standard Material/Coating
/AP Stainless Steel, Passivated
snhy.com/RBAA
TECHNICAL FEATURES
Main stage orifice is protected by a 150 micron stainless steel screen.
Suitable for use in load holding applications.
For Series 2 cartridges configured with an O control (panel mount handknob), a 1.00 in. (25,4 mm) diameter hole is required in the panel.
NOTES
Model Code Example: RBAALANCONFIGURATION OPTIONS
Created on 11/06/2015
c
2015 Sun Hydraulics Corporation See www.sunhydraulics.com for detailed product information 2 of 2
Back pressure on the tank port (port 2) is directly additive to the valve setting at a 1:1 ratio.
Cartridges configured with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage
the seals.
W and Y controls (where applicable) can be specified with or without a special setting. When no special setting is specified, the valve is adjustable throughout its full
range using the W or Y control. When a special setting is specified, this setting represents the maximum setting of the valve.
Corrosion resistant cartridge valves are intended for use in corrosive environments and are identified by the model code suffix /AP for external stainless steel
components, or /LH for external zinc-nickel plated components. See the CONFIGURATION section for all options. For further details, please see the Materials of
Construction page located under TECH RESOURCES.
Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge
machining variations.
PERFORMANCE CURVES
