FLOW CONTROLS
EC16-43 Pressure Compensator
DESCRIPTION
A screw-in, cartridge-style, priority on-demand, pressure-compensator with dynamic
load sense. It is intended to provide priority fl ow in the required amount while allowing
excess fl ow to be used for auxiliary functions.
OPERATION
With inlet fl ow at ➂, the EC16-43 will deliver required priority fl ow at ➃, regardless of
load pressure. Excess fl ow exits at
➁. Port ➀ is the load sense port. All ports may be
fully pressurized.
FEATURES
• Hardened parts for long life.
• Quiet, modulated response.
• Industry common cavity.
RATINGS
Maximum Operating Pressure: Inlet: 240 bar (3500 psi)
Maximum Input Flow: 190 lpm (50 gpm)
Maximum Priority Flow Rate: 95 lpm (25 gpm)
Flow Maintenance: see performance chart
Temperature: -40 to 120°C with Buna N seals
Filtration: See page 9.010.1
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
Installation: No restrictions; See page 9.020.1
Cavity: VC16-4; See page 9.116.1
Cavity Tool: CT16-4-XXX; See page 8.600.1
Seal Kit: SK16-4X-MMM; See page 8.650.1
SYMBOLS
USASI/ISO:
PERFORMANCE (Cartridge Only)
5.494.1
Pressure Drop vs. Inlet Flow
➂ to ➁, with ➃ closed
32 cSt/150 ssu oil at 40°C
14.0/200
10.5/150
12.1/175
7.0/100
8.6/125
3.5/50
5.2/75
1.7/25
37.9
10
75.7
20
151.4
40
INLET FLOW lpm/gpm
PRESSURE DROP bar/psi
189.3
50
113.6
30
4
3
2
1
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Cartridge: Weight: 0.56 kg. (1.23 lbs.)
Steel with hardened work surfaces.
Zinc-plated exposed surfaces.
Buna N O-rings and polyester
elastomer back-ups standard.
Standard Ported Body: Weight:
1.50 kg. (3.30 lbs.) Anodized high-
strength 6061 T6 aluminum alloy,
rated to 207 bar (3000 psi). Ductile
iron bodies available; dimensions
may differ. See page 8.016.1.
MATERIALS TO ORDER
Porting
Cartridge Only 0
SAE 12; Port 1: SAE 6 12T
SAE 16; Port 1: SAE 6 16T
EC16-43 - __ - __ - __
EC16-43
DIMENSIONS
5.494.2
Compensator Spring
80 5.51 bar (80 psid)
150 10.34 bar (150 psid)
Seals
N Buna N (Std.)
V Fluorocarbon
4.00
101.6
2.12
53.8
4.38
111.3
5.00
127.0
4.00
101.7
2.00
50.8
1.00
25.4
3.25
82.6
0.34
8.6
0.19
4.8
1.98
50.3
1.50
38.1
ACROSS FLATS
TORQUE: 50 ft-lbs
(67.7 Nm) max.
INCH
MILLIMETRE
3.63
92.1
2.13
54.0
4
4
3
3
2
2
1
1
*
* BSP BODY
— 134.9
with Dynamic Load Sense
®
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®
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