DESCRIPTION
A proportional solenoid-operated, 2-way, poppet-type, normally closed, screw-in
hydraulic cartridge valve for low-leakage blocking and load-holding applications.
OPERATION
When de-energized, the SP16-20 acts as a check valve, allowing flow from 1 to 2,
and blocking flow from 2 to 1. When energized, the 2 to 1 flow path opens. Flow is
proportional to current applied to the coil.
Note: If low voltage is expected on the machine, 12 or 24 volt systems will
require the use of 10 volt or 20 volt coils respectively. See “SP Valves and Coil
Operating Parameters,” page 2.002.1.
FEATURES
• Industry-common cavity. • Efficient wet-armature construction.
• Continuous-duty rated coils. • Optional waterproof E-Coils rated up to IP69K.
• Manual override options.
RATINGS
Operating Pressure: 250 bar (3625 psi)
Flow: Up to 265 lpm (70 gpm); see performance curves.
Dither/Pulse Frequency: 100 to 400 Hz
Hysteresis: Less than 5% below 60% of I-max.; Less than 10% above 60% of I-max.
Maximum Control Current: 1.2 amps
Max. Internal Leakage: 5 drops per minute at rated pressure
Temperature: -40 to 120°C with standard Buna seals
Fluids: Mineral-based or synthetics with lubricating properties at viscosities
of 7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page 9.060.1
Filtration: See page 9.010.1; Installation: No Restrictions. See page 9.020.1
Cavity: VC16-2; See page 9.116.1; Cavity Tool: CT16-2XX; See page 8.600.1
Seal Kit: SK16-2X-T; See page 8.650.1
Coil Nut: Part No. 7004400; for E-coils manuf. prior to 1-1-04, see page 3.400.1.
ELECTRO-PROPORTIONAL VALVES—FLOW CONTROL
SP16-20 Poppet, 2-Way, Normally Closed
SYMBOLS
USASI/ISO:
2.014.1
PERFORMANCE
FLOW lpm/gpm
303/80
341/90
265/70
227/60
189/50
151/40
114/30
76/20
38/10
0
FLOW vs. CURRENT at Various Differential Pressures
32 cSt/150 sus oil at 40C
PERCENT of MAX. CONTROL CURRENT
10 20 30 40 50 60 70 80 90 100
207 bar
3000 psi
104 bar
1500 psi
35 bar
500 psi
11 bar
160 psi
5.5 bar
80 psi
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 AMP
Curves shown are
for standard 12V D-Coils.
for E-Coils consult factory.
3.4/50
6.9/100
10.3/150
13.8/200
17.2/250
20.7/300
24.1/350
27.6/400
31.0/450
75.7
20
151.4
40
37.9
10
113.6
30
189.3
50
FLOW lpm/gpm
PRESSURE bar/psi
PRESSURE DROP (average)
Port 2 to 1; 1.5 Amp with 12VDC Coil
32 cSt/150 sus oil at 40°C
Performance information continued on following page.
HYDRAFORCE
.com
®
Blue rectangles are links to other catalog pages.