Parker Hannifin Corporation
Hydraulics Group
Catalogue HY11-3500/UK
5
5-15
2F1C UK.INDD CM 15.07.2011
2 Way Variable Flow Control Valve
Series 2F1C
with check valve
2 way flow control valves series 2F1C provide pressure
and viscosity compensated flow from port A to port B.
The counter direction is blocked (standard) or can be
open via an integral reverse flow check valve (optional).
Function
The compensator spool is located in front of the metering
spool. The metering spool is closed in the neutral position
to avoid undesired initial actuator motion. The oil flow to
open the metering spool has to pass a needle valve (not
shown in the sectional drawing). The needle valve can
be adjusted from the front panel to set the response time
of the 2F1C.
The metering spool is adjusted by the main control knob.
The key lock has three positions:
Lock: Adjustment is locked.
Adjust: Full adjustment is permitted.
Trim: Fine adjustment of +/- 5% is possible.
Features
• 2 way flow control valve
• Subplate mounting according to ISO 6263
• Excellent fine adjustment
• Adjustable response time
• Closed in neutral position
• Optional reverse flow check valve
• 2 sizes, NG10 (3/8“), NG16 (3/4“)
Characteristics / Ordering Code
2 way
flow control
valve
2F1C
Size Adjustment
knob with
lock
B
01 5
Design
series
Code Size
02 NG10 (3/8”)
03 NG16 (3/4”)
Seal
FPM
Reverse
flow check
Options
Code Check valve
0 without check
C with check
Ordering code
Parker Hannifin Corporation
Hydraulics Group
Catalogue HY11-3500/UK
5
5-16
2F1C UK.INDD CM 15.07.2011
2 Way Variable Flow Control Valve
Series 2F1C
Technical Data
General
Design Orifice, infinitely variable, pressure-compensated
Actuator Manual flow rate adjustment
Mounting type ISO 6263
MTTF
D
value [years] 150
Mounting position unrestricted
Weight [kg] 6.0 (2F1C02), 9.0 (2F1C03)
Fluid Hydraulic oil according to DIN 51524/525
Fluid temperature [°C] Max. 70
Ambient temperature [°C] -25...+50
Viscosity range [cSt] / [mm²/s] 2.8...400
Filtering ISO 4406 (1999); 18/16/13 (meet NAS 1638: 7)
Min. pressure difference [bar] see diagram
Max. operating pressure 2F1C02 2F1C03
Port A [bar] 14...280 14...350
Port B [bar] 0...270 0...340
Flow direction
A → B
B → A
Flow control function
blocked or free flow through check valve
Technical data
Parker Hannifin Corporation
Hydraulics Group
Catalogue HY11-3500/UK
5
5-17
2F1C UK.INDD CM 15.07.2011
2 Way Variable Flow Control Valve
Series 2F1C
Performance curves
Flow / knob adjustment characteristics at 210 bar
Flow / pressure drop curves
Constant inlet pressure – variable outlet pressure
2F1C02 2F1C03
Characteristic Curves
All characteristic curves measured with HLP46 at 50°C.
Parker Hannifin Corporation
Hydraulics Group
Catalogue HY11-3500/UK
5
5-18
2F1C UK.INDD CM 15.07.2011
2 Way Variable Flow Control Valve
Series 2F1C
Characteristic Curves
Dp/Q performance curves
for reverse flow direction
2F1C02 at 280 bar
2F1C03 at 350 bar
Minimum pressure difference curves
2F1C02 2F1C03
All characteristic curves measured with HLP46 at 50°C.
Parker Hannifin Corporation
Hydraulics Group
Catalogue HY11-3500/UK
5
5-19
2F1C UK.INDD CM 15.07.2011
2 Way Variable Flow Control Valve
Series 2F1C
Leakage / pressure curves
Flow / temperature curves
at 210 bar
Characteristic Curves
2F1C02 2F1C03
All characteristic curves measured with HLP46 at 50°C.
Parker Hannifin Corporation
Hydraulics Group
Catalogue HY11-3500/UK
5
5-20
2F1C UK.INDD CM 15.07.2011
2 Way Variable Flow Control Valve
Series 2F1C
Dimensions
1
0
0
B2
L2
Ød1
H3
H2
H1
45
Ød2
d3
Y1
Y2
X2
Y4
Y5
Y3
X3X4
X5
Response time
adjustment
X1
LOCK
ADJUST
TRIM
INCREASE
FLOW
L1
B1
Ød4
X6
A
B
Size ISO-code x1 x2 x3 x4 x5 x6 y1 y2 y3 y4 y5
02 6263-AM-07-2-A 76.2 79.4 9.5 44.5 19 – 82.5 23.8 30.2 41.3 39.7
03 6263-AK-06-2-A 101.6 103.2 20.6 52.4 31.8 0.8 101.6 28.6 15.1 75.4 26.2
Size ISO-code B1 B2 H1 H2 H3 L1 L2 d1 d2 d3 d4
02 6263-AM-07-2-A 101.6 38.1 119.6 87.4 6.4 95.2 47.6 6.4 57.2 8.7 14.2
03 6263-AK-06-2-A 124 42.9 121.4 89.2 6.4 124 62 9.5 57.2 10.5 22.4
NG ISO-code
Bolt kit -
DIN912 12.9
Surface finish
02 6263-AM-07-2-A BK-700-70842-8 4xM8x100 31.8 Nm ±15%
on request
03 6263-AK-06-2-A BK395 4xM10x100 63 Nm ±15%
