VB
H Y D R AU L I C B R A K E VA LV E S
SPECIFIC SOLUTIONS
FOR HYDRAULIC POWER BRAKE Responding to changes in offhighway vehicle and engine designs, Poclain Hydraulics has developed braking systems to both enhance hydrostatic braking performance and add synchronized
control
for
combinations of both hydrostatic World leader in hydrostatic transmissions including high torque radial piston cam motors, Poclain Hydraulics is: Over 1,100 people around the world 4 manufacturing plants 11 sales subsidiaries
and mechanical brake systems on a single vehicle. The result is an offer unmatched on the market for its ability to tailor braking performance to individual customer and machine requirements.
Over 100 distributors around the world More than 6% of turnover invested in R&D
Introduction to VB product range “A dedicated team of brake valve design, application, and quality engineers insure products of unsurpassed performance. Brake valves are key vehicle safety features, and so our customers value the put-and-forget reliability that our products provide.”
N.SOLER, VB Valve Product Manager
2
V B H Y D R A U L I C B R A K E VA LV E S
TABLE OF CONTENTS • Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 • Hydraulic brake systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Brake actuators • VB010 Single-circuit modulating brake valves . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 • VB020, VB0E0, VB0F0 Dual-circuit modulating brake valves . . . . . . . . . . . . . . . 7 • VB0B0 Steering-assist brake valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 • VB002 Reverse modulating brake valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 • VB012 Single-circuit combined-brake valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 • VB022 Dual-circuit combined-brake valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Accumulator charging valves • VB100 Single-circuit accumulator charging valves . . . . . . . . . . . . . . . . . . . . . . . . 12 • VB200 Dual-circuit accumulator charging valves . . . . . . . . . . . . . . . . . . . . . . . . . 13
Power brake valves • VB110 Single-circuit power brake valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 • VB220, VB2E0, VB2F0, VB22E Dual-circuit power brake valves . . . . . . . . . . . . 15
Special valves • VS Relay valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 • VS Quick return valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
• Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 • Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 • Technical Datasheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
V B H Y D R A U L I C B R A K E VA LV E S
3
HYDRAULIC BRAKE SYSTEMS The underlying concept of Poclain Hydraulics braking systems can be adapted to handle your specific braking requirements.
TANK
PUMP dedicated or supplying downstream hydraulic devises.
AUXILIARIES such as steering, tools, cooling fan…
ACCUMULATORS
REVERSE MODULATING BRAKE VALVE
store energy for power off braking.
controls the SAHR brake to provide emergency and parking brake functions.
SAHR ACCUMULATOR CHARGING VALVE
(Spring Applied, Hydraulic Release) brake is fully applied when the actuation pressure is null.
ensures the pressure is available in the accumulator(s) to operate the brake(s).
REAR
FRONT HASR (Hydraulic Applied, Spring Released) brakes is fully applied when the actuation pressure is maximum.
MODULATING BRAKE VALVE provides HASR brakes control to provide dynamic brake functions.
V B H Y D R A U L I C B R A K E VA LV E S
5
BRAKE ACTUATORS VB010
Single-circuit modulating brake valves Description • Mechanically operated modulating brake valves for brake actuation • Supplies one output pressure • Used with a single-circuit accumulator charging valve (VB100 for example) Principle of operation The VB010 supplies an operating pressure to the service brake(s) proportional to the pedal position: the pressure from the valve to the brake(s) increases, from zero when the pedal is released, to a preset pressure, as the pedal is fully depressed.
Features Output Pressure
• 1 adjustable output pressure for service brake • Precise, modulated braking pressure • Small, lightweight package c a
b Pedal Stroke/angle
Brake operating pressure Output Pressure
Characteristics Maximum operating pressure Output pressures Mass (valve only) Operating temperature Fluid Pedal Stroke/angle
Brake operating pressure
6
V B H Y D R A U L I C B R A K E VA LV E S BRAKE ACTUATORS
axbxc
bar psi bar PSI kg lbs °C °F
210 3000 20 290 1.3 2.87 -20 -4
fi 120 fi 1740
fi +120 fi +248
10µm filtered mineral oil mm inch
50 x 35 x 97.5 1.97 x 1.37 x 3.84
BRAKE ACTUATORS Dual-circuit modulating brake valves Description • Mechanically operated modulating brake valves for brake actuation • Supplies 2 output pressures (P1 and P2) for independent front and rear brakes • Available with ratios* between operating pressures for symmetrical
VB020 VB0E0 VB0F0
or asymmetrical braking
• Used with a dual-circuit accumulator charging valve (VB200 for example) * VB020: ratio 1 (P2 = P1) , VB0E0: ratio 0.64 (P2 = 0.64 P1) , VB0F0: ratio 0.44 (P2 = 0.44 P1)
Principle of operation
P2
P1
The VB020, VB0E0 and VB0F0 supply two operating pressures to the service brakes proportional to the pedal position: the pressure from the valve to the brakes increases, from zero when the pedal is released, to a preset pressure, as the pedal is fully depressed. Dual-circuit protection: in the event of failure due to contamination or hydraulic hose rupture in either circuit, the VB020, VB0E0, and VB0F0 design enables continued safe operation of the remaining circuit. This insures against total loss of braking power due to failure of a single circuit.
Features • 2 adjustable output pressures for dynamic braking • Symmetrical or asymmetrical operating pressures • Precise, modulated braking pressures • Dual-circuit protection • Small, lightweight package
c b
a
Output Pressures
Operating temperature Fluid axbxc
)
(V B0 P2
B0 F0 E0 /V
fi 120 fi 1740
0)
B0 20 /V
Mass (valve only)
210 3000 30 435 2.8 6.17 -20 -4
(V B0
Output pressures
bar psi bar psi kg lbs °C °F
P1
Maximum operating pressure
20 )
Characteristics
fi +120 fi +248
0E
(VB
P2
0)
F VB0
P2 (
10µm filtered mineral oil mm inch
60 x 60 x 95 2.36 x 2.36 x 3.74
Pedal Stroke/angle
Brake operating pressures Output Pressure
V B H Y D R A U L I C B R A K E VA LV E S BRAKE ACTUATORS
7
BRAKE ACTUATORS
VB0B0
Single-circuit steering-assist brake valves Description • Mechanically operated modulating brake valves for steering assist and service braking
• Supplies 2 identical output pressures (P1 and P2) • Used with a single-circuit accumulator charging valve (VB100 for example) Principle of operation VB0B0 actuation is accomplished using two pedals: the right pedal controls the machine right-hand brakes, and the left pedal the machine left-hand brakes. P1
• Work mode (Directional braking right/left)
P2
In work mode both pedals are actuated independently. When the operator depresses either of the two pedals, the VB0B0 supplies precise operating pressure exclusively to the service brake associated to this pedal.
• Road mode (Braking with equal power distribution) In road mode the two pedals are mechanically linked together: when the operator depresses either of the two pedals, the VB0B0 supplies precise and strictly identical operating pressure to the service brakes of both sides of the machine.
Features • 2 identical, adjustable output pressures • Steering-assist / service braking function • Precise, modulated output pressures • Small, lightweight package
c
a
b
Output Pressures
Characteristics Maximum operating pressure P1
P2
Output pressures Mass (valve only) Operating temperature Fluid Pedal Stroke/angle
Brake operating pressures
8
V B H Y D R A U L I C B R A K E VA LV E S BRAKE ACTUATORS
axbxc
bar psi bar psi kg lbs °C °F
210 3000 fi 120 20 290 fi 1740 6.5 14.33 -20 fi +120 fi +248 -4
10µm filtered mineral oil mm inch
60 x 135 x 95 2.36 x 5.31 x 3.74
BRAKE ACTUATORS
VB002
Reverse modulating brake valves Description
(Parking & emergency braking or inching control)
• Mechanically operated modulating brake valves for emergency/parking brake actuation
• Used for Inching control • Supplies 1 output pressure • Available with your choice of input: horizontal / vertical levers or pedal type Principle of operation • Power-off controlled braking (negative pressure braking) The VB002 supplies a precise output pressure inversely proportional to the mechanical command position: the pressure from the valve to the Spring-Applied Hydraulically-Released (SAHR) brake decreases, from a max preset pressure that keeps the brake fully released when the command is released, to 0 when the command is actuated.
• Inching control The inching valve modulates the hydrostatic transmission for approach control.
Features • Used for SAHR brake command or inching control • One precise, modulated braking pressure • Small, lightweight package c a
b
Output Pressure
Characteristics Maximum operating pressure Output pressures Mass (valve only) Operating temperature Fluid axbxc
bar psi bar psi kg lbs °C °F
210 3000 10 145 1.3 2.87 -20 -4
fi 120 fi 1740
fi +120 fi +248
10µm filtered mineral oil mm inch
35 x 50 x 130 1.37 x 1.97 x 5.12
Pedal Stroke/angle
Brake operating pressure
V B H Y D R A U L I C B R A K E VA LV E S BRAKE ACTUATORS
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BRAKE ACTUATORS
VB012
Single-circuit combined-brake valves Output Pressures Description
Output Pressures
co nt ro
l
ntro l
• Mechanically operated modulating brake valves for braking combinations: Br ak e
Brak e co
consecutive or simultaneous hydrostatic and service braking
• Supplies 1 output pressure for service braking • Supplies 1 output pressure for pump control • Used with a single-circuit accumulator charging valve (VB100 for example) ump co ntrol Principle of Poperation
Pump control
• 2-step braking Pedal Stroke/angle
Output Brake Pressures operating pressures
co nt ro l
If the braking is not sufficient, the operator continues to push on the pedal.
Br ak e Pump
/angle
Initial portion of the pedal stroke: the VB012 supplies a precise output pressure Pedal Stroke/angle inversely proportional to the pedal position to control the hydraulic pump. Brake operating pressures
The last portion of pedal stroke, the VB012 supplies an operating pressure to the service brakes proportional to the pedal position to control the service brakes.
• Simultaneous braking contro
The VB012 is able to synchronize the operation of both hydraulic pump control (hydrostatic braking) and service brakes (mechanical braking) simultaneously.
l
Pedal Stroke/angle
Brake operating pressures
Features • 1 output pressure for pump control • 1 output pressure for service brakes command • Precise, modulated braking pressures • Small, lightweight package a b
c
Characteristics Maximum operating pressure Output pressures Mass (valves only) Operating temperature Fluid axbxc
10
V B H Y D R A U L I C B R A K E VA LV E S BRAKE ACTUATORS
bar psi bar psi kg lbs °C °F
210 3000 20 290 2.6 5.73 -20 -4
fi 120 fi 1740
fi +120 fi +248
10µm filtered mineral oil mm inch
130 x 50 x 128 5.11 x 1.97 x 5.03
BRAKE ACTUATORS
VB022 VB0E2 VB0F2
Dual-circuit combined-brake valves Description • Mechanically operated modulating brake valves for braking combinations: consecutive or simultaneous hydrostatic and service braking
• Supplies 1 output pressure for pump control • Supplies 2 output pressures (P1 and P2) for independent front and rear brakes • Available with ratios* between operating pressures for symmetrical
Outpu
Output Pressures
P2 (VB VB0
0F 2) 2) B0 2 (V
P2
0E /V B 22
co nt ro Br ak e
(V B0 F2 )
) E2
B0
P2
(V
F2)
VB0
P2 (
Pump contro l
P2
Brak e
Dual-circuit protection: in the event of failure (contamination or hydraulic hose rupture) in either circuit, the VB022, VB0E2 and VB0F2 design enables continued safe operation of the remaining circuit. This insures against total Pumploss control of braking power due to failure of a single circuit. Pedal Stroke/angle
Pedal Stroke/angle
Brake operating pressures
Brake operating pressures
• 1 output pressure for pump control • 2 output pressures for dynamic brake command • Symmetric or dissymmetric pressure outputs • Dual-circuit protection • Precise, modulated braking pressures • Small, lightweight package
VB022
(V B0
lP 1
E2)
VB0
P2 (
cont rol P1 (VB0
22/V B
0E2/
The VB022 is able to synchronize the operation of both hydraulic pump control (hydrostatic braking) and service brakes (mechanical braking) simultaneously.
Features
(V B
2) 0F VB 2/
2)
P2 (VB
VB0F
Pedal Stroke/angle Output Brake Pressures operating pressures
022)
• Simultaneous braking
Pump control
P2
Initial portion of the pedal stroke: the valves supply a precise output pressure inversely proportional to the pedal position to control the hydraulic pump. If the braking is not sufficient, the operator continues to push on the pedal. The last portion of pedal stroke, the valves supply 2 operating pressures to the Output Pressures service brakes proportional to the pedal position to control the mechanical brake.
Brak e co
• 2-step braking
P2 (
ntro l P1 ( V
Principle of operation
E2)
B022 /
VB0E 2/
* VB022: ratio 1 (P2 = P1) , VB0E2: ratio 0.64 (P2 = 0.64 P1) , VB0F2: ratio 0.44 (P2 = 0.44 P1)
022)
VB0F 2)
or asymmetrical braking • Used with a dual-circuit accumulator charging valve (VB200 for example)
VB022
Characteristics Maximum operating pressure Output pressures Mass (valves only) Operating temperature Fluid axbxc
bar psi bar psi kg lbs °C °F
210 3000 30 435 4.1 9.03 -20 -4
b fi 120 fi 1740
a c
fi +120 fi +248
10µm filtered mineral oil mm inch
60 x 128 x 146 2.36 x 5.11 x 5.70
V B H Y D R A U L I C B R A K E VA LV E S BRAKE ACTUATORS
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ACCUMULATOR CHARGING VALVES VB100
Single-circuit accumulator charging valves Description • Supplies 1 output to keep the accumulator under pressure • Supplies 1 output for auxiliaries • Used with single-circuit modulating brake valves Principle of operation Hydraulic energy is stored by maintaining pressure in the accumulator within a preset range (cut-in and cut-out pressures). When accumulator pressure reaches its lower limit (cut-in pressure), a small amount of oil is diverted from the auxiliaries to recharge the accumulator. Once the accumulator pressure reaches the upper limit (cut-out pressure), the valve automatically stops charging the accumulator and resumes full flow to auxiliaries
Features
c
• 1 output to the accumulator • 1 output for auxiliaries • Load sensing option available • Small, lightweight package b
a
Characteristics Maximum operating pressure Cut-in/cut-out pressures Output pressure
Flow rate to accumulator
recharge
Flow rate to auxiliaries
high limit
low limit
Mass (valve only) Operating temperature
"x" braking
Fluid
bar psi bar psi bar psi l/min US gpm l/min US gpm kg lbs °C °F
210 3000 110/130 1600/1900 160/190 2320/2750 2.75, 8, 15 0.75, 2.1, 4.0 30, 45, 120 8, 12, 32 2.2 4.8 -20 fi +120 -4 fi +248
120/140 1740/2030 170/200 2460/2900
10µm filtered mineral oil 30 & 45*
Time
axbxc
Pressure in the accumulator * Flow rate to auxiliaries (l/min)
12
V B H Y D R A U L I C B R A K E VA LV E S ACCUMULATOR CHARGING VALVES
135/160 1950/2320 180/210 2600/3000
mm inch
70 x 61 x 95 2,75 x 2,40 x 3,74
120* 70 x 70 x 95 2,75 x 2,75 x 3,74
ACCUMULATOR CHARGING VALVES Dual-circuit accumulator charging valves
VB200
Description • Supplies 2 outputs to keeps the accumulators under pressure • Supplies 1 output for auxiliaries • Used with dual-circuit modulating brake valves Principle of operation Hydraulic energy is stored by maintaining pressure in the accumulators within a preset range (cut-in and cut-out pressures). When accumulator pressure reaches its lower limit (cut-in pressure), a small amount of oil is diverted from the auxiliaries to recharge the accumulators. Once the accumulator pressure reaches the upper limit (cut-out pressure), the valve automatically stops charging the accumulators and resumes full flow to auxiliaries. Fail-safe design: The VB200 design includes an inverted shuttle valve to isolate the accumulators for two independent brake circuits (separate brake circuits for front and rear brakes).
c
Features • 2 outputs to accumulators • 1 output for auxiliaries • Load sensing option available • Dual-circuit protection • Small, lightweight package
b
a
Characteristics Maximum operating pressure Cut-in/cut-out pressures
Flow rate to accumulator Flow rate to auxiliaries Mass (valve only) Operating temperature Fluid
bar psi bar psi bar psi l/min US gpm l/min US gpm kg lbs °C °F
210 3000 110/130 1600/1900 160/190 2320/2750 2.75, 8, 15 0.75, 2.1, 4.0 30, 45, 120 8, 12, 32 4 8.8 -20 fi +120 -4 fi +248
120/140 1740/2030 170/200 2460/2900
Output pressures
recharge high limit
low limit
"x" braking
10µm filtered mineral oil 30 & 45*
axbxc
135/160 1950/2320 180/210 2600/3000
mm inch
61 x 87 x 95 2.40 x 3.42 x 3.74
120* 70 x 87 x 95 2.75 x 3.42 x 3.74
Time
Pressure in the accumulators
* Flow rate to auxiliaries (l/min) V B H Y D R A U L I C B R A K E VA LV E S ACCUMULATOR CHARGING VALVES
13
POWER BRAKE VALVES VB110
Single-circuit power brake system Description • Groups multiple functions in the same manifold: - Accumulator charging - Service brake modulation • Supplies 1 output pressure for service brake actuation • Supplies 1 output to keep the accumulator under pressure • Supplies auxiliaries
Principle of operation The VB110 ensures pressure is available in the accumulator to operate brakes in the event of loss of system pressure. (see VB100 principle of operation page 12) In addition it supplies the operating pressure to the service brake(s) proportional to the pedal position. (see VB010 principle operation page 6)
Features • 1 output pressure for brake actuation • 1 output for accumulator charging • 1 output pressure for auxiliaries • 1 valve instead of 2 • Load sensing option available • Small, lightweight package
c a
b
Characteristics Maximum operating pressure Output pressures Cut-in/cut-out pressures
Flow rate to accumulator Flow rate to auxiliaries Mass (valve only) Operating temperature Fluid
bar psi bar psi bar psi bar psi l/min US gpm l/min US gpm kg lbs °C °F
210 3000 30 fi 120 435 fi 1740 110/130 1600/1900 160/190 2320/2750 2.75, 8, 15 0.75, 2.1, 4.0 30, 45, 120 8, 12, 32
-20 -4
120/140 1740/2030 170/200 2460/2900
fi +120 fi +248
10µm filtered mineral oil 30 & 45*
axbxc * Flow rate to auxiliaries (l/min)
14
V B H Y D R A U L I C B R A K E VA LV E S POWER BRAKE VALVES
135/160 1950/2320 180/210 2600/3000
mm inch
60 x 100 x 95 2.36 x 3.93 x 3.74
120* 70 x 112 x 95 2.75 x 4.40 x 3.74
POWER BRAKE VALVES Dual-circuit power brake systems Description • Groups multiple functions in the same manifold:
• • • •
- Accumulator charging - Service brake modulation - Parking brake electrical control (VB22E only) Supplies 2 output pressures (P1 and P2) for independent front and rear brakes Available with ratios* between operating pressures for symmetrical or asymmetrical braking Supplies 2 outputs to keep the accumulators under pressure Supplies 1 output for auxiliaries
VB220 VB2E0 VB2F0 VB22E
* VB220: ratio 1 (P2 = P1) , VB2E0: ratio 0.64 (P2 = 0.64 P1) , VB2F0: ratio 0.44 (P2 = 0.44 P1)
Principle of operation The dual-circuit power brake systems ensure pressure is available in the accumulators to operate brakes in the event of loss of system pressure. (see VB200 principle of operation page 13)
VB220
In addition it supplies the operating pressure to the service brakes proportional to the pedal position. (see VB020/VB0E0/VB0F0 principle operation page 7) Finally the VB22E supplies an on/off pressure for parking brake control.
Features • 2 output pressures for brake actuation • 2 outputs for accumulators charging • 1 output for auxiliaries • Load sensing option available • 1 valve instead of 2 or 3 • Small, lightweight package
c a
b
Characteristics Maximum operating pressure Output pressures Cut-in/cut-out pressures
Flow rate to accumulator Flow rate to auxiliaries Mass (valve only)
VB220, VB2E0, VB2F0 VB22E
Operating temperature Fluid
bar psi bar psi bar psi bar psi l/min US gpm l/min US gpm kg lbs kg lbs °C °F
210 3000 30 fi 120 435 fi 1740 110/130 1600/1900 160/190 2320/2750 2.75, 8, 15 0.75, 2.1, 4.0 30, 45, 120 8, 12, 32 6 13.22 8 17.63 -20 fi +120 fi +248 -4
120/140 1740/2030 170/200 2460/2900
VB22E
b
c
a
10µm filtered mineral oil
VB220 30 & 45* VB220 120* axbxc
135/160 1950/2320 180/210 2600/3000
mm inch
VB22E
60 x 100 x 95 70 x 112 x 95 60 x 173 x 135 2.36 x 3.93 x 3.74 2.75 x 4.40 x 3.74 2.36 x 6.81 x 5.31
* Flow rate to auxiliaries (l/min) V B H Y D R A U L I C B R A K E VA LV E S POWER BRAKE VALVES
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SPECIAL VALVES VS valves are designed for applications with very long brake lines or very large brake cylinder volume requiring high flow (70l/min - 18.5 US gpm).
VS Relay valves Description • External hydraulic pilot • Located between the accumulator(s) and the brake(s) • Controlled and used with a modulating brake valve Principle of operation
c
Control pressure is supplied to the VS valve proportional to brake pedal angle. The VS relay valve provides, at high flow, pressure from the accumulators out to the brakes directly proportional to the control pressure, i.e. directly proportional to the pedal position. The braking is progressif.
b
a
VS Quick Return valves Description • Internal hydraulic pilot • Located between the Spring Applied Hydraulically Released (SAHR) brake(s) and the tank
• Controlled by and used with Poclain Hydraulics VB002
c
a
Principle of operation Control pressure is supplied to the VS valve proportional to SAHR actuation. The VS quick return valve transfers the flow coming from the brakes to the tank directly proportional to the control pressure, i.e. directly proportional to the SAHR actuation. The braking is progressif.
b
Characteristics Maximum operating pressure
bar psi
Ratio pilot pressure pressure/output Flow rate Mass Operating temperature Fluid axbxc
16
V B H Y D R A U L I C B R A K E VA LV E S SPECIAL VALVES
210 3000 1/1
l/min US gpm kg lbs °C °F
70 18.5 2 4.40 -20 fi +120 -4 fi +248
10µm filtered mineral oil mm inch
60 x 35 x 125 2.36 x 1.38 x 4.92
Features • Flow rate at 70l/min - 18.5 US gpm • Enhanced brake response time • Easily mounted near brakes, accumulators and tank • Small, lightweight package
OPTIONS
4
Lockable pedal
4
Rubber protection
4
4
4
4
4
4
VB2E0 VB2F0
4
VB220
4
VB 22E
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
VB22E
4
VB200
4
VB110
Pedal
VB100
4
VB022
Vertical hand lever
VB0E0 VB0F0
4
VB020
VB012
Horizontal hand lever
VB0B0
VB010
VB002
VB VB VB VB VB VB VB VB VB VB VB VB 002 010 012 0B0 020 0E0 022 100 110 200 220 2E0 0F0 2F0
Mechanical inputs
Co n t ro l s Load sensing option for ACV* 5 bar/72 psi Pressure switch (parking brake)
4 4
4
4
4
4
4
5 bar/72 psi Pressure switch (auxilaries)
4
4
4
4
4
4
4
4
4
4
105 bar/1522 psi accumulator low pressure warning switch Pressure sensor with connector
4
4 4
Low pressure 4 (50bar/725 psi)
Pressure switch
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
Others Pedal back abutment
4
* ACV: Accumulator Charging Valve
V B H Y D R A U L I C B R A K E VA LV E S OPTIONS
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Ask for technical support Send your braking circuit request by fax COMPANY INFORMATION A1 A2
Company Name Address
Contact and title Telephone
COMMERCIAL INFORMATION B1 B2 B3 B4
Type of machine Name, model # Estimated annual production __/__/__ Estimated prototype date Estimated date of production Type of business o New application o Replacement: current supplier Product P/N
__/__/__
VEHICLE SPECIFICATION C1
Countries of use Braking standards & regulations
C2 C3
Maximum speed km/h mph Empty weight Front kg lbs Max weight Front kg lbs
Empty weight Rear kg lbs Max weight Rear kg lbs
HYDRAULIC BRAKE CIRCUIT SPECIFICATION Please attach your hydraulic circuit diagram of the braking system and all drawings available and useful to the installation. D1
Service Brake
D2
Parking brake
D3
ACV (*)
D4 D5 D6 D7 D8 D9
o o o o o o
Single-circuit Dual-circuit On-Off valve Modulating valve Without No o Yes
Pump flow l/min gpm Pump Speed tr/min rpm
- Low idle - Low idle
Maximum service brake pressure bar psi Pressure ratio between front and rear axle o1
o 0.64
o 0.44
Maximum parking brake pressure bar psi Cut-in / Cut-out pressure bar psi Load Sensing port required on ACV - High idle - High idle
/ o Yes
o No
Pump displacement cm3 in3 Available pressure from pump or pump pressure relief valve bar psi Required auxiliary flow l/min Other components supplied by the same pump o Steering o Auxiliaries (type of component) Required priority : o Priority brakes o Priority steering Accumulator calculation requested o Yes o No Total service brake actuation volume o Front axle requirements per braked axle cm3 in3 o Rear axle
Remarks
* ACV: Accumulator Charging Valve (included on the VB100, VB110, VB200, VB220, VB22E)
Send by fax to : 33/(0)3 44 40 79 90 E-mail :
[email protected]
V B H Y D R A U L I C B R A K E VA LV E S
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