pvg 128 and pvg 256 - pv global is a hydraulic, load-sensing proportional valve, designed for...
TRANSCRIPT
PVG is a hydraulic, load-sensing proportional valve,designed for optimal machine performance andmaximum design flexibility.
The PVG 128 and PVG 256 are new members of thePVG product platform.
PVG 128 and PVG 256 controls work port flow up to500 l/min and up to 420 bar work port pressure.
The PVG valve design is based on a modular conceptthat enables machine designers to specify a valvesolution suitable for multiple market segments acrossmultiple applications.
The load independent proportional control valve andhigh performance actuator technology combinedwith a low pressure drop design improves themachine performance and efficiency—Increasingproductivity and reducing energy consumption.
General features
• Inlet flow up to 1200 l/min (PVPV+PVSI-PT)
• Maximum work port flow 500 l/min• Compact sectional platform solution for
easy integration with PVG 16 and PVG32
• High precision, reliability, and ultimateperformance with closed looptechnology and CAN bus
• New compensator design for enhancedload independency
• Optimized for lower pressure drop andhigher efficiency
• Load sense relief valves for A and B portenables reduced energy loss at targetpressure
• Configurable with shock valves or anticavitation valves
• Load sense auxiliary ports for externaladjustment of target pressure
• Port connections available: Flange(Metric), SAE Flange (UNF), UNF(threaded ports) and BSP (threadedports)
Spool/flow options
• Closed or Throttled open in neutralposition
• Electrical, mechanical or hydraulicactuation
• 65, 95, 130, 180, 240, 320, 400• 500 l/min with turbo upgrade module
Control options
• PVM, manual control with spool limitingadjustment screws
• PVH for hydraulic actuation• Electro-hydraulic control options with
PVEO, PVEH, PVHC, PVEH-U and PVEDactuators
System/application protective features
• Pilot Pressure Shut Off
Comprehensive technical literatureavailable at powersolutions.danfoss.com
Data Sheet
Proportional Valve GroupPVG 128 and PVG 256
© Danfoss | Oct 2016 AI00000271en-US0103 | 1
Flow Performance Graph
7292112132152172192212
579111315
0.000.050.100.150.200.250.300.35
01234567890
l/minP A
50% 55% 60% 65% 70% 75% Us/UDC PVE
72 92 112 132 152 172 192 212 psi5 7 9 11 13 15 bar
PVH
0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 inch0 1 2 3 4 5 6 7 8 9 10
US gal/min
mm
P B
PVG 256
PVG 128
P301 883.A
500
450
400
350
300
150
200
250
50
100
0
100
110
120
130
60
70
80
90
0
10
20
30
40
50
25% 30% 35% 40% 45% 50%
Spool pos.
Technical data
Maximum pressure Port P continuous 350 bar [5000 psi]
Port A/B continuous 350 bar [5000 psi]
Port A/B intermittent 420 bar [6000 psi]
Port T, static/dynamic 25/40 bar [360/580 psi]
Oil flow rated Port P (PVPV/PVSI) 600/600 l/min [158/158 US gal/min]
Port A/B (128) 300 l/min [79 US gal/min]
Port A/B (256) 400 l/min [105 US gal/min]
Port A/B (256 turbo) 500 l/min [132 US gal/min]
Spool travel Deadband ± 1.7 mm [± 0.067 in]
Proportional control range ± 10 mm [± 0.39 in]
Float position A ± 12 mm [± 0.47 in]
Actuation PVM, PVH, PVHC, PVEO, PVEH, PVEH-U, PVED Standard options
PVE EX Options available in 2017
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to productsalready on order provided that such alterations can be made without changes being necessary in specifications already agreed.All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
2 | © Danfoss | Oct 2016 AI00000271en-US0103