Download EPD03 Proportional Valves

INDUSTRIAL FLUID POWER COMPONENTS
AND SYSTEMS
EPD03 SERIES
Proportional Valves
EPD03-2B-2G-12VDC
31341 Friendship Drive, Magnolia, TX 77355 • Tel.: 281-259-7768 Fax: 281-259-7249 • www.hyvair.com
EPD03 Series
Proportional Valves
Features
1. High Flow: EPD03 series control the direction and the volume of the flow
according to the feeding current to the proportional solenoid. By using a
valve body equipped with increased passage channels it is possible to
reach the highest capacity of its dimensions at a parity of pressure drops.
(9 gpm with p of 120 psi).
2. Hydrostats Available: For a more accurate flow control, 2 or 3-way
modular hydrostats (pressure compensation valves) are available.
EPD03-2B-2G-12VDC
Specifications
Model
Rated Flow Range
(gpm)
Max. Pressure
P,A,B Ports
Max. Pressure
T Port
Duty
Cycle
Frequency
Response
Weight
EPD03-2B-2G-12VDC
EPD03-2B-4G-12VDC
EPD03-2B-6G-12VDC
EPD03-2B-9G-12VDC
EPD03-2F-2G-12VDC
EPD03-2F-4G-12VDC
EPD03-2F-6G-12VDC
EPD03-2F-9G-12VDC
2
4
6
9
2
4
6
9
5000 psi
(350 bar)
2000 psi
(210 bar)
Continuous
100% ED
28 Hz
@-3db
(Signal 25%)
6.4 lbs
2.9 kg
Dimensional Data
12 (3.17)
w/ 116 psi
hydrostat
D03-HS1-116
2 (0.53)
1 (0.27)
24 (0.94)
ps
i
8 (2.12)
Units: mm/ Inches
i
6 (1.58)
4 (1.06)
80
40.5 (1.594)
0
100
20
6G Spool P→A/B
80
100
I (%)
I (%)
30 (7.94)
60
40
50 (13.22)
31 (1.22)
21
(0.82)
60
40
9G Spool P→A/B
45 (11.90)
10 (2.65)
6
11
ps
i
Bode Diagram
35 (9.25)
Input signal amplitude ±25% Vmax
17.5 (0.69)
3
ps
i
30 (7.93)
25 (6.61)
20 (5.29)
73
15 (3.97)
i
ps
10 (2.64)
5 (1.32)
5 (1.32)
0
0
0
20
40
60
I (%)
80
100
0
20
40
I (%)
Ordering Information
EPD03 - 2 - G - 12VDC
Spool Type:
B= all ports
blocked
F= P blocked,
A & B to Tank
B
P
40 (10.58)
Q (gpm)
ps
i
15 (3.97)
14
5
Q (gpm)
20 (5.29)
T
A
14
5
25 (6.61)
76 (2.99)
237.5 (9.35)
0
20
85.5 (3.37)
170 (6.71)
2 (0.53)
0
0
D03 Pattern
76 (2.99)
32.5 (1.28)
3 (0.80)
10 (2.65)
14
5
4 (1.06)
ps
i
14
5
ps
5 (1.33)
ps
i
6 (1.59)
5.6 (0.22)
17 (0.67)
7 (1.85)
9.4
(0.37)
Mounting Torque: 40 in-lbs
(4) 10-24 SHCS x 1.0”
long supplied
Spool Flow:
2= 2 gpm
4= 4 gpm
6= 6 gpm
9= 9 gpm
Note: All EPD03 valves Meter In/ Meter Out Design
All specifications/ flow curves using fluido
o
150SUS (32mm2/s), @ 122 F (50 C)
60
80
100
Operating Notes:
Fluid viscosity:
80-300 SUS (17-65cSt)
Fluid temperature:
o
o
o
40-160F (5 -70 C)
Ambient temperature:
o
o
o
-4-160F (-20 -70 C)
Max. contamination level:
10 micron (class 8 NAS 1638)
Mounting Torque: 40 in-lbs
12V Coil Information
Max current: 1.76A
Solenoid coil resistance
:
o
o
4.8 Ohm @68 F (20 C)
Solenoid coil resistance when hot:
7.34 Ohm
Hysteresis P/A/B/T with a pressure
compensator: 5% of spool max. flow
Response Time (transient function
with stepped electrical input signals):
36ms @70 psi drop (26ms returning
to center)
120
0
-3
90
-6
60
-9
-12
30
-15
-18
0
-21
1
0,1
100
10
Frequency (Hz)
Power Limits
P→A/B→T or P→B/A→T
(psi)(Mpa)
5075 35
4350 30
3625 25
2900 20
2175 15
1450 10
9G
2G
725 5
0 0
0
0
5.29
20
10.58
40
15.87
60
21.16 (gpm)
80 (l/min)
Q (gpm)
31341 Friendship Drive, Magnolia, TX 77355 • Tel.: 281-259-7768 Fax: 281-259-7249 • www.hyvair.com
Shift phase (degrees)
14 (3.70)
4G Spool P→A/B
46 (1.81)
8 (2.12)
Q (gpm)
16 (4.23)
11
6
Q (gpm)
18 (4.76)
9 (2.38)
73
2G Spool P→A/B
10 (2.64)
12
(0.47)
Input Signal vs Flow Curves
Pressure (psi)
a
b
Amplitude ratio (db)
a
b
85 (3.35)
Spool Type