（WITH PRESSURE COMPENSATION, WITH
1-STEP FLOW CONTROL VALVE WITH SHUT-OFF VALVE（HFD）
PRESSURE AND TEMPERATURE COMPENSATION）
This is a compound valve built by assembling a flow control valve with pressurecompensation, a shut off valve and a check valve.
It is used to control the feed operation (rapid feed → slow feed → rapid return) of e.g.
a machine tool.

■Features

FLOW CONTROL VALVES

Operating method of sub valve
M: Pressing-down type
1: Normally open internal drain
3: Normally open external drain
Check valve
Flow adjustment range
Piping method
G: Gasket
Function category
P: With pressure compensation
K: With pressure and temperature compensation

Nominal size

Pressing-down force (N)０２１５４ × Back pressure (ＭＰａ) ＋１１００３

２５０ × Back pressure (ＭＰａ) ＋１２５０４

３１０ × Back pressure (ＭＰａ) ＋１８０

NOTE: The pressing-down force value in thespecification table indicates the value
when the back pressure is “0”.

Max. operating pressure of main valve
1: 7 MPa2: 14 MPa
Directional control valve (sub valve)
Flow control valve (main valve)

Internal drain type
Nominalsize

With pressurecompensation

With pressurecompensation

With pressure andtemperaturecompensation

E−10

With pressure and temperaturecompensationE

1. The valve is compactly designed and is suitable for feed control of singlepurpose
machine tools and automatics.
2. Since the valve incorporates a pressure compensation mechanism, it keeps thecontrolled flow constant regardless of the pressure variation at the IN and OUT
ports. If a valve equipped with the temperature compensation mechanism inaddition to the pressure compensation mechanism is used, the valve can keep thecontrolled flow constant even if the fluid temperature (viscosity) varies.
3. The flow is controlled almost in direct proportion to the division on the flow
adjusting dial.
● To achieve good pressure compensation performance, the pressure difference
between the IN and OUT ports must be maintained at 0.6 MPa or larger.
● The valve mounting face must be finished to the same surface finish 3 . 2 Z as the▽▽▽valve face.
● The edge angle of the dog (cam) must be 30 deg. or smaller. The roller must have ahardness in the range HRC48 to HRC52.
● When controlling slow feed → rapid feed in feed operation, it is necessary to apply
a back pressure of approximately 0.35 MPa at the OUT port for the internal drain
type or at the DR port for the external drain type.
■Description of the model designation● The pressing-down force varies according to the back pressure as shown in thetable to the right.
ＨＦＤ１ｰＰＧ２Ｋｰ１Ｍｰ０３（Ａ）● If the circuit is configured so that the back pressure (OUT port pressure) becomeshigh with the internal drain type, the back pressure must be 4 MPa or lower since
Model No.
high back pressure will shorten the life of the roller and the pin.
Nominal size of main valve

0203

02

03

04

Max. operating pressure(MPa)777714

Free flow(L/min)

1230

1230

50

Pressing-down force Flow adjustment range(L/min)(N)110125110

125

180

Model

0.1 to 1

HFD1ｰPG1Kｰ1Mｰ02

0.1 to 2

HFD1ｰPG2Kｰ1Mｰ02

0.2 to 4

HFD1ｰPG4Kｰ1Mｰ02

0.1 to 1

HFD1ｰPG1Kｰ1Mｰ03A

0.1 to 2

HFD1ｰPG2Kｰ1Mｰ03A

0.2 to 8

HFD1ｰPG8Kｰ1Mｰ03A

0.1 to 1

HFD1ｰKG1Kｰ1Mｰ02

0.1 to 2

HFD1ｰKG2Kｰ1Mｰ02

0.2 to 4

HFD1ｰKG4Kｰ1Mｰ02

0.1 to 2

HFD1ｰKG2Kｰ1Mｰ03

0.2 to 8

HFD1ｰKG8Kｰ1Mｰ03

0.1 to 1

HFD2ｰKG1Kｰ1Mｰ04A

0.1 to 2

HFD2ｰKG2Kｰ1Mｰ04A

0.4 to 16

HFD2ｰKG16Kｰ1Mｰ04A

External drain type
Nominalsize

With pressurecompensation

With pressurecompensation

With pressure and temperaturecompensation

With pressure andtemperaturecompensation

Max. operating pressure(MPa)Free flow(L/min)Pressing-down force Flow adjustment range(L/min)(N)

120211073003

1202125110

7300304

1450125180

Model

0.1 to 1

HFD1ｰPG1Kｰ3Mｰ02

0.1 to 2

HFD1ｰPG2Kｰ3Mｰ02

0.2 to 4

HFD1ｰPG4Kｰ3Mｰ02

0.1 to 1

HFD1ｰPG1Kｰ3Mｰ03A

0.1 to 2

HFD1ｰPG2Kｰ3Mｰ03A

0.2 to 8

HFD1ｰPG8Kｰ3Mｰ03A

0.1 to 1

HFD1ｰKG1Kｰ3Mｰ02

0.1 to 2

HFD1ｰKG2Kｰ3Mｰ02

0.2 to 4

HFD1ｰKG4Kｰ3Mｰ02

0.1 to 2

HFD1ｰKG2Kｰ3Mｰ03

0.2 to 8

HFD1ｰKG8Kｰ3Mｰ03

0.1 to 1

HFD2ｰKG1Kｰ3Mｰ04A

0.1 to 2

HFD2ｰKG2Kｰ3Mｰ04A

0.4 to 16

HFD2ｰKG16Kｰ3Mｰ04AE■Outside dimensions

FLOW CONTROL VALVES

HFD1ｰPG*Kｰ1Mｰ02
Free position
Press-down position
Press-down limit
Flow rateadjustment dialSpool relation diagram
Grip lock screw(O-ring)

Mass: 1.1㎏

HFD1ｰPG*Kｰ3Mｰ02
Free position
Press-down position
Press-down limit

Flow rateadjustment dial

Grip lock screw
握りロックねじ(O-ring)(O-ring)
Mass: 1.1㎏

E−11

■Outside dimensions
HFD1ｰKG*Kｰ1Mｰ02
Free position

3

Press-down limit

4

1 418

16.5

Press-down position

25

Flow rateadjustment dial

IN

24

OUT

4ｰM5

OUT5584627

IN

77

1226

Grip lockscrew

Spool relation diagram

36
33
2ｰJISB 2401ｰ1AP10(O-ring)

63
62

67374

E

Mass: 1.2㎏

HFD1ｰKG*Kｰ3Mｰ02

FLOW CONTROL VALVES

16.5

Free position

3

Press-down limit

425

Flow rateadjustment dial
Grip lockscrew

37

46

58

24

27

IN

77

1261 418

Press-down position

OUT

4ｰM5

DR
29.5

36

33
2ｰJISB 2401ｰ1AP14(O-ring)

Stroke63762

6

2ｰJISB 2401ｰ1AP6(O-ring)74

Mass: 1.2㎏

HFD1ｰPG*Kｰ1Mｰ03A44

Free position

18

Press-down position

55

Press-down limit

28.5IN

90

13.5

6

3.5

2ｰφ4

Flow rateadjustment dial

IN

41.5

4ｰM6OUTOUT
7.5

55

68

28.5

6.5

1.5 6

2ｰJISB 2401ｰ1AP14(O-ring)

1220
2968

13

Spool relation diagram

41

Lock screw
71.5

11104
141.5

Mass: 3㎏

E−12

■Outside dimensions
HFD1ｰPG*Kｰ3Mｰ03A
18

Press-down position

55

Press-down limitIN
2ｰφ46OUT
7.5

90

28.5

13.5
55

Flow rateadjustment dial

IN

53.5
41.5

68

28.5

6.5

1.5 6

2ｰJISB 2401ｰ1AP14(O-ring)

3.544

Free position

4ｰM6OUTSpool relation diagram

7DR
20

1271.5

68
104
141.5

1341

Lock screw

2911

JISB 2401ｰ1AP6(O-ring)
Mass: 3㎏

2ｰφ4Flow rateadjustment dial

90

28.5

13.5

6OUT

IN

3.5

28.5

1.5 6

6.5

5

IN

41.5

55

5

Press-down limit

2ｰJISB 2401ｰ1AP14(O-ring)

68

18

Press-down position

OUT
4ｰM67.5

44

Free position

Spool relation diagram

122060

Lock screw

29
68
1390.511104
141.5
Mass: 4.0㎏

HFD1ｰKG*Kｰ3Mｰ03
Free position

18

Press-down position

44

5

1.5 6

Flow rateadjustment dial

2ｰφ46.528.5

Press-down limit

2ｰJISB 2401ｰ1AP14(O-ring)

690

28.5

13.5

IN55
53.5
41.5

68

5OUT

4ｰM67DR2012291360

Lock screw

90.5

68104
141.5

11

JISB 2401ｰ1AP6(O-ring)
Mass: 4.0㎏

E−13

FLOW CONTROL VALVES

HFD1ｰKG*Kｰ1Mｰ03

E

■Outside dimensions
HFD2ｰKG*Kｰ1Mｰ04AFree position
Press-down limit

OUT

63

7289
10

1044

IN
8452044ｰM8
OUT

16.5

51

71

13IN

Flow rateadjustment dial

32125

10

8.5 82ｰJISB 2401ｰ1AP20(O-ring)

72ｰφ85191225Press-down position

Lock screw

2034

61

Spool relation diagram

1491
7710127147

E

Mass: 6.5㎏

Free position
Press-down limit

OUT

5637289101044
20

4

Flow rateadjustment dial

125

51

91

13IN

32

108.5 8

2ｰJISB 2401ｰ1AP20(O-ring)

782ｰφ85171

22
5

Press-down position

4ｰM8

Lock screw

8

FLOW CONTROL VALVES

HFD2ｰKG*Kｰ3Mｰ04A

61

2034

91
77

10127
147

14

JISB2401ｰ1AP9(O-ring)
Mass: 6.5㎏

E−14

（WITH PRESSURE AND TEMPERATURE COMPENSATION）
2-STEP FLOW CONTROL VALVE WITH SHUT-OFF VALVE（HFDF）
This is a compound valve built by assembling a flow control valve with pressurecompensation, a shut off valve and a check valve.
It is used to control the feed operation (rapid feed → slow feed → rapid return) of e.g.
a machine tool.

■Features
1. The valve is compactly designed and is suitable for feed control of singlepurpose
machine tools and automatics.
2. Since the valve incorporate a pressure compensation and temperaturecompensation mechanism, it keeps controlled flow constant regardless of thepressure variation at the IN and OUT port and the viscosity variation due totemperature change.
3. The flow is controlled almost in direct proportion to the division on the flow
adjusting dial.
● To achieve good pressure compensation performance, the pressure difference
between the IN and OUT ports must be maintained at 0.6 MPa or larger.
● The valve mounting face must be finished to the same surface finish 3 . 2 Z as the▽▽▽valve face.
● The edge angle of the dog (cam) must be 30 deg. or smaller. The roller must have ahardness in the range HRC48 to HRC52.
● When controlling slow feed → rapid feed in feed operation, it is necessary to apply
a back pressure of approximately 0.35 MPa at the OUT port for the internal drain
type or at the DR port for the external drain type.
● The pressing-down force varies according to the back pressure as shown in thetable to the right.
● If the circuit is configured so that the back pressure (OUT port pressure) becomeshigh with the internal drain type, the back pressure must be 4 MPa or lower sincehigh back pressure will shorten the life of the roller and the pin.

■Description of the model designation

HFDF2ｰKG8Kｰ1MｰK1ｰ04（A）
Model No.

Nominal size of main valve

Function category of sub valve
K: With pressure and temperature compensation

Nominal size

Pressing-down force (N)03

２５０ × Back pressure (ＭＰａ) ＋１２５04

３１０ × Back pressure (ＭＰａ) ＋１８０

NOTE: The pressing-down force value in thespecification table indicates the value
when the back pressure is “0”.

Operating method of sub valve
M: Pressing-down type
1: Normally open internal drain
3: Normally open external drain
Check valve
Flow adjustment range
Piping method
G: Gasket
Function category
K: With pressure and temperature compensation
Max. operating pressure of main valve
1: 7 MPa2: 14 MPa
Flow control valve (sub valve)
Directional control valve (sub valve)
Flow control valve (main valve)

Internal drain typeInternal drain type
Nominalsize

Max. operating pressure(MPa)Free flow(L/min)Pressing-down force
(N)

03

730

12504

1450180

Flow adjustment range(L/min)Model

No. 1 feed

No. 2 feed

0.2 to 2

0.1 to 1

HFDF1ｰKG2Kｰ1MｰK1ｰ03

0.2 to 80.1 to 1

HFDF1ｰKG8Kｰ1MｰK1ｰ030.2 to 20.1 to 1

HFDF2ｰKG2Kｰ1MｰK1ｰ04A

0.2 to 8

0.1 to 1

HFDF2ｰKG8Kｰ1MｰK1ｰ04A

External drain type
External drain type

Nominalsize

Max. operating pressure(MPa)Free flow(L/min)Pressing-down force
(N)

03

730

12504

1450180

Flow adjustment range(L/min)Model

No. 1 feed

No. 2 feed

0.2 to 2

0.1 to 1

HFDF1ｰKG2Kｰ3MｰK1ｰ03

0.2 to 8

0.1 to 1

HFDF1ｰKG8Kｰ3MｰK1ｰ03

0.2 to 2

0.1 to 1

HFDF2ｰKG2Kｰ3MｰK1ｰ04A

0.2 to 8

0.1 to 1HFDF2ｰKG8Kｰ3MｰK1ｰ04A

E−15

EFLOW CONTROL VALVES

Max. control flow of sub valve
1: 1 L/min

■Outside dimensions
HFDF1ｰ KG*Kｰ 1Mｰ K1ｰ 03

Free position
First feed position
52

16

Lock screw

44

18

Second feed position

5Press-down limit

5778 2228.5

84ｰM619910 OUT 0
10SECOND
FIRST FEEDFEEDOUT
91IN

62

65

5

3

3

2ｰφ44

628.5

IN

54

Flow rateadjustment dial

90

41.5
13.5

6.5

Lock screw

55

68

144

2ｰJISB 2401ｰ1AP14(O-ring)

12202961

1311Spool relation diagram

91104
141.5

E

Mass: 4.0㎏

Free position

16

Lock screw

5244

First feed position

18

Second feed position

5Press-down limit

55IN

46378 2OUT
1932
15

6

10010SECONDFIRST FEED
FEED
DR

728.5

Flow rateadjustment dial

2ｰφ44

28.5

53.5
41.5

55

68

13.5

6.5

Lock screw

690

1 44

2ｰJISB 2401ｰ1AP14(O-ring)

8

4ｰM6

920

12131161

29

91

104
141.5

JISB 2401ｰ1AP6(O-ring)

Mass: 4.0㎏

HFDF2ｰ KG*Kｰ 1Mｰ K1ｰ 04A
Free position
First feed position7Flow rateadjustment dial

IN

8OUT

2ｰφ8125203213IN
5191

Press-down limit

410

1.5 7 8

2ｰJISB 2401ｰ1AP 20(O-ring)

54ｰM89.589

22

Second feed position

4485

3071

OUT
16.5

FLOW CONTROL VALVES

HFDF1ｰ KG*Kｰ 3Mｰ K1ｰ 03

Spool relation diagram

5872
10Lock screw
165

61
90.5

14185
Mass: 8.0㎏

E−16

■Outside dimensions
HFDF2ｰ KG*Kｰ 3Mｰ K1ｰ 04AFree position
First feed position10

1.5 7 8

2ｰJISB 2401ｰ1AP 20(O-ring)

Press-down limit

7Flow rateadjustment dialIN9.58OUT

2ｰφ812551

203213IN

7191548922

Second feed position

4485304ｰM816.5

OUTDR8Spool relation diagram

587210Lock screw
83165185

6190.5E

14Mass: 8.0㎏

E−17FLOW CONTROL VALVESJISB 2401ｰ1AP9(O-ring)（WITH PRESSURE AND
1-STEP FLOW CONTROL VALVE WITH ROTARY TYPE SHUT-OFF VALVE （HFD）
TEMPERATURE COMPENSATION)）
This is a compound valve built by assembling a flow control valve with pressure andtemperature compensation, a shut off valve and a check valve.
It is used to control the feed operation (rapid feed → slow feed → rapid return) of machine
tools, etc.

■Features

1. The switching mechanism for the shut-off valve has been changed from the conventional
spool forcing down type to the spool rotation type.
2. The dog pressing force can be lightened since the spool rotating force does not changeeven if the OUT port pressure (back pressure) varies.
3. This valve can also be used for light bed feed control since it can control rapid feed → 1st
step feed simply.
● To achieve good pressure compensation performance, the pressure difference between
the IN and OUT ports must be maintained at 0.6 MPa or larger.
3.2 Z● The valve mounting face must be finished to the same surface finish ▽▽▽ as the valveface.
● The dog section pin (φ9 ±0.1 mm) must have a hardness in the range HRC34 to HRC44.

■Description of the model designation
Nominal size of main valve

Directional control valve (sub valve)

Operating method of sub valve
R: Rotary type
1: Normally open
internal drain

Function category
K: With pressure and temperature compensation

3: Normally open
external drain

Piping methodG: Gasket

Check valve
Max. controllable flow of main valve■Specifications
Nominalsize

Max. operating pressure(MPa)03704Free flow(L/min)Rotating torque(N·m)

30

150

Flow adjustment range(L/min)Model

0.2 to 2

HFD1ｰKG2Kｰ1Rｰ03

0.2 to 8

HFD1ｰKG8Kｰ1Rｰ03

0.1 to 1

HFD1ｰKG1Kｰ1Rｰ04

0.2 to 2

HFD1ｰKG2Kｰ1Rｰ04

0.4 to 16

HFD1ｰKG16Kｰ1Rｰ04

1.3■Outside dimensions
HFD1ｰ KG*Kｰ 1Rｰ 03

HFD1ｰ KG*Kｰ 1Rｰ 04
φ92ｰφ42ｰφ84ｰM822

15.5 15.5813.5φ9（30.5）

60

90.5

15.5 15.59666

231164ｰM647

OUT

12122ｰJISB2401ｰ1AP20202934

6877841310104

127147141.5
Mass: 5.0㎏

E−18

Mass: 8.0㎏

128

1091

51

71

13IN
OUT

2036

IN

13.5

28.5

25

Lock screw

1050

1041.5

55

108

28
6.5

2ｰJIS B 2401ｰ1AP 14(O-ring)

68

FLOW CONTROL VALVES

Max. operating pressure of main valve
1: 7 MPa

12E

HFD1ｰKG2Kｰ1Rｰ03
Flow control valve (main valve)

（WITH PRESSURE AND
2-STEP FLOW CONTROL VALVE WITH ROTARY TYPE SHUT-OFF VALVE （HFDF）
TEMPERATURE COMPENSATION)）
This is a compound valve built by assembling a flow control valve with pressure andtemperature compensation, a shut off valve and a check valve.
It is used to control the feed operation (rapid feed → slow feed → rapid return) ofmachine tools, etc.

■Features

1. The switching mechanism for the shut-off valve has been changed from theconventional spool forcing down type to the spool rotation type.
2. The dog pressing force can be lightened since the spool rotating force does notchange even if the OUT port pressure (back pressure) varies.
3. The valve can also be used for light bed feed control since it can control rapid feed
→ 1st step feed → 2nd step feed simply.
● To achieve good pressure compensation performance, the pressure difference
between the IN and OUT ports must be maintained at 0.6 MPa or larger.
● The valve mounting face must be finished to the same surface finish 3.2 Z as the▽▽▽valve face.
● The dog section pin (φ9 ±0.1 mm) must have a hardness in the range HRC34 toHRC44.

■Description of the model designation

HFDF1ｰKG8Kｰ1RｰK1ｰ04

E

Nominal size of main valve

Directional control valve (sub valve)
Flow control valve (sub valve)Max. control flow of sub valve
1: 1 L/min

Max. operating pressure of main valve
1: 7 MPa

Function category of sub valve
K: With pressure and temperature compensation

Function category
K: With pressure and temperature compensation

Sub valve operating method
R: Rotary type

Piping method
G: Gasket

1: Normally open internal drain
Check valve
Max. controllable flow of main valve■Specifications
Nominalsize

Max. operating pressure(MPa)Free flow(L/min)Rotating torque(N·m)

30

103
704

50

1.3

Flow adjustment range (L/min)
No. 1 feed
No. 2 feedModel

0.2 to 2

HFDF1ｰKG2Kｰ1RｰK1ｰ03

0.2 to 8

HFDF1ｰKG8Kｰ1RｰK1ｰ03

0.1 to 1

0.1 to 2

HFDF1ｰKG2Kｰ1RｰK1ｰ04

0.2 to 8

HFDF1ｰKG8Kｰ1RｰK1ｰ04■Outside dimensions
HFDF1ｰKG*Kｰ1RｰK1ｰ03

HFDF1ｰKG*Kｰ1RｰK1ｰ04
φ92ｰφ42ｰφ8φ94ｰM8
15.5 15.5

22

13.5
90.5
60

23
15.5 15.5（30.5）

9666

1164ｰM625

1088

Lock screw

517191128132036ININ

13.5

10

Lock screw
28.5

1041.5

6.5
55

47

OUTOUT

1212108

68

28

2ｰJIS B 2401ｰ1AP 14(O-ring)1230

2ｰJISB2401ｰ1AP202958
72

68115

84
1310104141.5
Mass: 5.0㎏

165
185

Mass: 8.0㎏

E−19

FLOW CONTROL VALVES

Flow control valve (main valve)