Priority Type Pressure Compensator Valve
Series FCPH121
Catalog HY15-3501/US
FC41
Check
Valves
Shuttle
Valves
Load/Motor
Controls
Flow
Controls
Pressure
Controls
Logic
Elements
Directional
Controls
Manual
Valves
Solenoid
Valves
Proportional
Valves
Coils &
Electronics
Bodies &
Cavities
Technical
Data
SH
CV
LM
FC
PC
LE
DC
MV
SV
PV
CE
BC
TD
Parker Hannifin Corporation
Hydraulic Cartridge Systems
Technical Information
Performance Curve
Flow vs. Orifice Diameter
(Through cartridge only)
Specifications
Rated Flow Inlet 95 LPM (25 GPM)
Flow Setting 75 LPM (20 GPM)
Maximum Inlet 380 Bar (5500 PSI)
Pressure
Cartridge Material All parts steel. All operating
parts hardened steel.
Operating Temp. -40°C to +93.3°C (Nitrile)
Range/Seals (-40°F to +200°F)
-31.7°C to +121.1°C (Fluorocarbon)
(-25°F to +250°F)
Fluid Mineral-based or synthetic with
Compatibility/ lubricating properties at viscosities
Viscosity of 45 to 2000 SSU (6 to 420 cSt)
Filtration ISO Code 16/13,
SAE Class 4 or better
Approx. Weight .28 kg (.62 lbs.)
Cavity C12-4
(See BC Section for more details)
Form Tool Rougher NFT12-4R
Finisher NFT12-4F
General Description
Priority Type Pressure Compensator. This valve is
designed to be used in conjunction with an external
orifice (fixed or variable) to provide a constant flow to
the priority port. Excess flow is bypassed through
port 2. For additional information see Technical Tips
on pages FC1-FC4.
Features
•
Hardened, precision ground parts for durability
•
Stable and quiet response
•
Contamination tolerant
•
Standard valve bodies and common cavities
•
Steel variations and other options available
•
All external parts zinc plated
Flow (Q)
37.9
10
18.9
5
LPM
GPM
0
56.8
15
75.8
20
Hydraulic Oil 150 SSU @ 100°F (32 cSt)
0
.10
.40 10.1
7.6
5.1
2.5
Orifice Diameter
.30
(IN.) MM.
.20
(4)
(2)
(3)
(1)
(1)
Inlet
(2)
Bypass
(3)
Priority
(4)
Supply
Catalog HY15-3501/US
Priority Type Pressure Compensator Valve
Series FCPH121
FC42
Check
Valves
Shuttle
Valves
Load/Motor
Controls
Flow
Controls
Pressure
Controls
Logic
Elements
Directional
Controls
Manual
Valves
Proportional
Valves
Coils &
Electronics
Technical
Data
SH
CV
LM
FC
PC
LE
DC
MV
SV
PV
CE
BC
TD
Bodies &
Cavities
Solenoid
Valves
Parker Hannifin Corporation
Hydraulic Cartridge Systems
Technical Information
Dimensions
Millimeters (Inches)
THIRD-ANGLE
PROJECTION
Ordering Information
SealsPressure
Differential
Body
Material
Port
Size
Code Seals / Kit. No.
Omit Nitrile /
(SK12-4)
V Fluorocarbon /
(SK12-4V)
* Add “A” for aluminum, omit for steel.
Code Adjustment Style
F Fixed style, present at
factory
K Knob Adjust (717784-15)
S Screw Adjust
T Tamper Resistant Cap (717785)
Code Body Material
Omit Steel
A Aluminum
12 Size
Pressure
Compensator
Priority Type
FCPH121
Adjustment
Style
Code Pressure Differential
Omit 11 Bar (160 PSI)
Code Port Size Body Part No.
Omit Cartridge Only
12T SAE-12 (B12-4-*12T)
39.6
(1.56)
79.7
(3.14)
Ø 22.2
(.87)
38.9
(1.53)
1-1/4" Hex.
29 Nm
(21 lb. ft.)
Torque
Fixed Cap/Tamper Resistant Version
(1)
Inlet
36.0
(1.42)
37.7
(1.48)
(3)
Priority
(2)
Bypass
38.1 (1.50)
Dia. Knob
(4)
Supply
Screw/Knob Version
1-1/16-12 UNF-2A
Thread
