Page 56 - Parker - Proportional Valves

Catalog HY15-3502/US Proportional Directional Control Valve
Technical Information Series GP02 51, 51L, 52

CV
General Description
4 Way, 3 Position, Proportional Directional Control
Valve. Closed Center Spool. For additional information
Valves
Check
see Technical Tips on pages PV1-PV6.
SH
Features
• One piece cartridge housing ensures internal
concentricity
Shuttle
Valves
• Coil: Waterproof, hermetically sealed, requires no
LM
O’Rings; Symmetrical coil can be reversed without
affecting performance.
Controls
Load/Motor
Specifications
FC (2) (4) (4)
Operating Ports 2, 3 and 4 (3)
Pressure 350 Bar (5000 PSI)
Port 1 (2)
210 Bar (3000 PSI) (3) (1)
Flow
Controls
PC
Hysteresis @ <6% (1)
100 Hz PWM
Performance Curves
Cracking Flow 25% to 30% of Input Signal
PWM Current Regulator Recommended
Controls
Pressure
Variation of Flow ±15% @ 75% of Nominal Current
LE 51L With 5 Bar, 75 PSI Compensator
and Constant ∆P Maintained by
Pressure Compensator 51 With 15 Bar, 220 PSI Compensator and SS Coil
GPM LPM Hydraulic Oil 150 SSU @ 100°F (32 cSt)
Port to Port 10 cu. in. @ 3000 PSI 5 19.0
PUSH 'a' PULL 'b'
Leakage
Elements
Logic
DC 51 51
Step Response On 50 ms 3 11.4
Time at 75% of Off 40 ms Flow
Amps
51L 51L
Cartridge Material All parts steel. All operating 1 3.8
Directional
Controls
MV parts hardened steel. 0
24V .60 .45 .30 .15 0 .15 .30 .45 .60
Operating Temp. -40°C to +93.3°C (Nitrile) 12V 1.20 .90 .60 .30 Current .30 .60 .90 1.20
100% 75% 50% 25% Amps 25% 50% 75% 100%
Range/Seals (-40°F to +200°F)
-31.7°C to +121.1°C (Fluorocarbon)
(-25°F to +250°F) 52 With 20 Bar, 290 PSI Compensator and SP Coil
Manual
Valves
SV GPM LPM Hydraulic Oil 150 SSU @ 100°F (32 cSt)
Fluid Mineral-based or synthetic with
6 22.8
Compatibility/ lubricating properties at viscosities PUSH 'a' PULL 'b'
Viscosity of 45 to 2000 SSU (6 to 420 cSt) 15.2
Filtration ISO Code 16/13, Flow 4 52 52
Valves
Solenoid
PV SAE Class 4 or better
2 7.6
Approx. Weight .15 kg (.34 lbs.)
Cavity C08-4 0
24V .80 .60 .40 .20 0 .20 .40 .60 .80
Proportional
12V 1.60 1.20 .80 .40 Current .40 .80 1.20 1.60
Valves
CE Typical Performance 100% 75% 50% 25% Amps 25% 50% 75% 100%
RATED FLOW AT 75%
SUPER
OF NOMINAL CURRENT COIL TYPE Flow vs. Load
SPOOL LPM - (GPM) Compensator GPM LPM Hydraulic Oil 150 SSU @ 100°F (32 cSt)
TYPE AND ‘a’ ‘b’ ∆ ∆ ∆ ∆ ∆P 4 15.2
Electronics
Coils &
FLOW SOLENOID SOLENOID Bar (PSI) P to A, B to T
BC PUSH PULL PUSH PULL
P to A, B to T P to B, A to T 3 11.4 P to B, A to T P to B, A to T
5.3 - (1.4) 5.3 - (1.4) SP SP 10 (150)
51L Flow 2 7.6
Low Flow 3.4 - (0.9) 3.4 - (0.9) SS SS 5 (75) P to A, B to T
Bodies &
Cavities
13.3 - (3.5) 17 - (4.5) SP SP 15 (220) 1 3.8
51 Pressure Not Compensated
TD Standard 11.4 - (3.0) 15.2 - (4.0) SS SS 15 (220) Compensated With Hydrostat P = 250 psi
0
21 - (5.5) 17 - (4.5) SP SP 20 (290) Bar 70 140 210 280 350
52 0
High Flow 17.4 - (4.5) 13 - (3.5) SP SP 15 (220) PSI 1000 2000 3000 4000 5000
Pressure
Technical
Data
PV55 Parker Hannifin Corporation
Hydraulic Cartridge Systems