The document contains a list of various types of valves and their components. It includes pressure reducing valves, pressure sustaining valves, electrically controlled valves, remotely controlled valves, and others. Each entry lists the type of valve, the pilot or solenoid used to control it, and a diagram of how it functions. The document provides specifications for over 60 different valve configurations.

1. Connection
Diagrams
2017

2. 2
Contents
N.C. Remote Controlled (RC) Valve with Galit 8
N.C. Electrically Controlled (EL) Valve with Aquative Solenoid 9
N.C. Electrically Controlled (EL) Valve 10
Pressure Reducing Valve (PR)
using 29-100 Plastic Pilot (Black) 11
Pressure Reducing Valve (PR)
using 29-10R Plastic Mini Pilot (Black) 12
N.C. Electrically Controlled Pressure Reducing Valve (PR/EL)
using 29-100 Plastic Pilot (Black) and Aquative Solenoid 13
Electrically Controlled Pressure Reducing Valve (PR/EL)
using 29-10R Plastic Mini Pilot (Black) 14
N.C. Electrically Controlled Pressure Reducing Valve (PR/EL)
using 29-100 Plastic Pilot (Black) 15
Electrically Controlled Pressure Reducing Valve (PR/EL)
using 29-10R Plastic Mini Pilot (Black) 16
N.C. Remotely Controlled Pressure Reducing Valve (PR/RC)
using 29-100 Plastic Pilot (Black) 17
Remotely Controlled Pressure Reducing Valve (PR/RC)
using 29-10R Plastic Mini-Pilot (Black) 18
Pressure Reducing Valve (PR)
using 29-200 Plastic Pilot (Blue) 19
N.C. Electrically Controlled Pressure Reducing Valve (PR/EL)
using 29-200 Plastic Pilot (Blue) and Aquative Solenoid 20
N.C. Electrically Controlled Pressure Reducing Valve (PR/EL)
using 29-200 Plastic Pilot (Blue) 21
Pressure Reducing Valve (PR)
using 31-10R Metal Pilot 22
N.C. Electrically Controlled Pressure Reducing Valve (PR/EL)
using 31-10R Metal Pilot 23
Remotely Controlled Pressure Reducing Valve (PR/RC)
using 31-10R Metal Pilot 24

3. 3
Contents
Pressure Reducing Valve (PR)
using 31-310 Metal Pilot 25
N.C. Electrically Controlled Pressure Reducing Valve (PR/EL)
using 31-310 Metal Pilot 26
N.C. Remotely Controlled Pressure Reducing Valve (PR/RC)
using 31-310 Metal Pilot 27
Pressure Reducing Valve (PR)
using 68-410 Metal Pilot 28
N.C. Electrically Controlled Pressure Reducing Valve (PR/EL)
using 68-410 Metal Pilot 29
Non-Return, Pressure Reducing Valve (PR/CV)
using 68-410 Metal Pilot 30
Proportional Pressure Reducing Valve (PRD) 31
Pressure Sustaining Valve (PS)
using 29-200 Plastic Pilot (Blue) 32
N.C. Electrically Controlled Pressure Sustaining Valve (PS/EL)
using 29-200 Plastic Pilot (Blue) and Aquative Solenoid 33
N.C. Electrically Controlled Pressure Sustaining Valve (PS/EL)
using 29-200 Plastic Pilot (Blue) 34
Pressure Sustaining Valve (PS)
using 31-10S Metal Pilot 35
N.C. Electrically Controlled Pressure Sustaining Valve (PS/EL)
using 31-10S Metal Pilot 36
Pressure Sustaining Valve (PS)
using 31-310 Metal Pilot 37
N.C. Electrically Controlled Pressure Sustaining Valve (PS/EL)
using 31-310 Metal Pilot 38
Pressure Sustaining Valve (PS)
using 68-510 Metal Pilot 39
N.C. Electrically Controlled Pressure Sustaining Valve (PS/EL)
using 68-51A Metal Pilot 40

4. 4
Contents
Pressure Sustaining Valve (PS)
using CXPS Metal Pilot 41
N.C. Electrically Controlled Pressure Sustaining Valve (PS/EL)
using CXSD Metal Pilot 42
Flow Rate Control Valve (FR)
using 29-310 Plastic Pilot 43
Flow Rate Control Valve (FR)
using 31-10F Metal Pilot (up to 6") 44
Flow Rate Control Valve (FR)
using 76-200 Metal Pilot (8" and larger) 45
Excessive Flow Shut-off Valve (FE)
using 31-10F Metal Pilot 46
Differential Vertical Float Controlled Valve (FLDI1)
using 70-550 Plastic Float Actuated Metal Pilot 47
Differential Horizontal Float Controlled Valve (FLDI2)
using 70-610 Plastic Float Actuated Metal Pilot 48
Modulating Float Controlled Valve (FL)
using 70-300 Plastic Float Actuated Plastic Pilot 49
Modulating Float Controlled Valve (FL)
using 70-400 Plastic Float Actuated Metal Pilot 50
Altitude Control Valve (AL)
using 70-110 Metal Pilot 51
Pressure Reducing and Sustaining Valve (PRPS)
using 29-100 (Black) and 29-200 (Blue) Plastic Pilots 52
N.C. Electrically Controlled Pressure Reducing
and Sustaining Valve (PRPS/EL)
using 29-100 (Black) and 29-200 (Blue) Plastic Pilots 53
N.C. Electrically Controlled Pressure Reducing and
Sustaining Valve (PRPS/EL)
using 29-100 (Black) and 29-200 (Blue) Plastic Pilots 54

5. 5
Contents
Electrically Controlled Pressure Reducing
and Sustaining Valve (PRPS/EL)
using 29-10R (Black) and 29-200 (Blue) Plastic Mini Pilots 55
Pressure Reducing and Sustaining Valve (PRPS)
using 31-10R and 31-10S Metal Pilots 56
N.C. Electrically Controlled Pressure Reducing and Sustaining
Valve (PRPS/EL)
using 31-10R and 31-10S Metal Pilots 57
Pressure Reducing and Sustaining Valve (PRPS)
using 31-310 Metal Pilots 58
N.C. Electrically Controlled Pressure Reducing and Sustaining
Valve (PRPS/EL)
using 31-310 Metal Pilots 59
Quick Relief Valve (QR)
using 68-510 Metal Pilot (up to 2") 60
Quick Relief Valve (QR)
using 68-510 Metal Pilot (3" and 6") 61
Quick Relief Valve (QR)
using 68-510 Metal Pilot (8" and larger) 62
Quick Relief Valve (QR)
using 68-215 Metal Pilot (11
/2" - 4") 63
Pump Controlled Valve (BC)
using 300 Series 64
Surge Anticipating Valve (RE)
using 68-510 and 31-10R Metal Pilots (up to 4") 65
Control Accessories - General 66
Solenoid Aquative
3-Way Solenoid 68
Solenoid Gemsol
3-Way Solenoid 69

6. 6
Contents
29-100
Pressure-Reducing, 3-Way Plastic Pilot-Valve 70
29-10R
Pressure-Reducing, 3-Way Plastic Pilot-Valve 71
29-200
Multi-Purpose, 3-Way Plastic Pilot-Valve 72
29-310
Differential Pressure Reducing, 3-Way Plastic Pilot-Valve 73
68-215
Quick-Acting, 2-Way Pressure-Relief Metal Pilot-Valve 74
68-410
Pressure-Reducing, 2-Way Metal Pilot-Valve 75
68-510
Pressure-Sustaining/Relief, 2-Way Metal Pilot-Valve 76
31-10R
Pressure-Reducing, 3-Way Metal Pilot-Valve 77
31-10S
Pressure-Sustaining, 3-Way Metal Pilot-Valve 78
31-10F
Rate of Flow, 3-Way Metal Pilot-Valve 79
31-310
Multi-Purpose, 3-Way Metal Pilot-Valve 80
66-310
Multi-Purpose 3-Way Metal Pilot And Relay-Valve 81
CXPR
Pressure-Reducing, 2-Way Metal Pilot-Valve 82
CXPS
Pressure-Sustaining/Relief, 2-Way Metal Pilot-Valve 83
76-200
Multi Purpose, 3-Way Metal Pilot-Valve 84
70-110
Altitude Control, 3-Way Metal Pilot-Valve 85

7. 7
Contents
70-300
Modulating, 2-Way Float Actuated Plastic Pilot-Valve 86
70-400
Modulating, 2-Way Float Actuated Metal Pilot-Valve 87
70-550
Differential, 3 Or 4-Way Vertical Float Actuated Metal Pilot-Valve 88
70-610
Differential, 3-Way Horizontal Float Actuated Metal Pilot-Valve 89
25-300
Hydraulic Accelerator Relay, 3-Way Plastic Pilot-Valve 90
Galit
Hydraulic Relay, 3-Way Plastic Pilot-Valve 91
28-200
Hydraulic Accelerator Relay, 2-Way Metal Pilot-Valve 92
28-300
Hydraulic Accelerator Relay, 3-Way Metal Pilot-Valve 93
Hydraulic Equations 94
Units Conversion 95

8. 8
N.C. Remote Controlled (RC) Valve with Galit
Remote control
connection
Remote control
connection
4
3
2
1

9. 9
N.C. Electrically Controlled (EL) Valve
with Aquative Solenoid
A
B
CV
P

10. 10
N.C. Electrically Controlled (EL) ValveValve
N.O.
2 1
C

11. 11
Pressure Reducing Valve (PR)
using 29-100 Plastic Pilot (Black)
ure R educing Valve (PR ) using 29-1
Plastic Mini Pilot (Black)
A
29-100
C
O
4
32
1

12. 12
Pressure Reducing Valve (PR)
using 29-10R Plastic Mini Pilot (Black)
29-10R
AC
O
4
32
1

13. 13
29-100
N.C. Electrically Controlled Pressure Reducing Valve
(PR/EL) using 29-100 Plastic Pilot (Black)
and Aquative Solenoid
1
2
3
4
A
B
C
P
V

14. 14
Electrically Controlled Pressure Reducing Valve (PR/EL)
using 29-10R Plastic Mini Pilot (Black)
Electrically Controlled Pressure Reducing Valve (PR/EL) using 29-
10R Plastic Mini Pilot (Black)
29-10R
A
B
C
P
V
1
2
34

15. 15
N.C. Electrically Controlled Pressure Reducing Valve
(PR/EL) using 29-100 Plastic Pilot (Black)
ally Controlled Pressure Reducing Valv
29-100 Plastic Mini Pilot (Black
AC
O
N.O.
29-100
4
32
1
2
1
C

16. 16
29-10R
Electrically Controlled Pressure Reducing Valve (PR/EL)
using 29-10R Plastic Mini Pilot (Black)
Electrically Controlled Pressure Reducing Valve (PR/EL) using 29-
10R Plastic Mini Pilot (Black)
N.O.
AC
O
1
C
2
4
32
1

17. 17
N.C. Remotely Controlled Pressure Reducing Valve
(PR/RC) using 29-100 Plastic Pilot (Black)
lled Pressure Reducing Valve (PR/R
9-100 Plastic Mini-Pilot (Black)
Remote control
connection
29-100
4
4 3
3
2
2
1
1

18. 18
29-10R
Remotely Controlled Pressure Reducing Valve (PR/RC)
using 29-10R Plastic Mini-Pilot (Black)
Remotely Controlled Pressure Reducing Valve (PR/RC) using 29-10R Plastic Mini-
Pilot (Black)
Remote control
connection
4
3
2
1
4
3
2
1

19. 19
Pressure Reducing Valve (PR)
using 29-200 Plastic Pilot (Blue)
Plastic Mini Pilot (Blue)
29-200
AC
O
4 3
2
1

20. 20
N.C. Electrically Controlled Pressure Reducing Valve
(PR/EL) using 29-200 Plastic Pilot (Blue)
and Aquative Solenoid
29-200
A
B
CV
P
3
2
1
4

21. 21
N.C. Electrically Controlled Pressure Reducing Valve
(PR/EL) using 29-200 Plastic Pilot (Blue)
sing 29-200 Plastic Mini Pilot (Blue)
29-200
AC
O
2
N.O.
4 3
2
1
1
C

22. 22
Pressure Reducing Valve (PR)
using 31-10R Metal Pilot
essure Reducing Valve (PR) using 3
Mini-Pilot
31-10R
A
O
C
4 3
2
1

23. 23
N.C. Electrically Controlled Pressure Reducing Valve
(PR/EL) using 31-10R Metal Pilot
ed Pressure Reducing Valve (PR/EL
31-10R Metal Mini-Pilot
31-10R
3-way N.O
A
O
C
4 3
2
2
1
1

24. 24
Remotely Controlled Pressure Reducing Valve (PR/RC)
using 31-10R Metal Pilot
31-10R Metal Mini-Pilot
Remote control
connection
31-10R
4 3
2
1
43
2
1

25. 25
Pressure Reducing Valve (PR)
using 31-310 Metal Pilot
Pilot
31-310
A
O
C4 3
12

26. 26
N.C. Electrically Controlled Pressure Reducing Valve
(PR/EL) using 31-310 Metal Pilot
31-310
A
O
C
4
3
2
1
1
3-way N.O
2

27. 27
N.C. Remotely Controlled Pressure Reducing Valve
(PR/RC) using 31-310 Metal Pilot
motely Controlled Pressure Reducing
31-310 Metal Pilot
Remote control
connection
31-310
4
2
13
4 3
2 1

28. 28
Pressure Reducing Valve (PR)
using 68-410 Metal Pilot
sure Reducing Valve (PR) using 68-4
Pilot
Orifice
68-410
IN OUT
0
I 0

29. 29
N.C. Electrically Controlled Pressure Reducing Valve
(PR/EL) using 68-410 Metal Pilot
ntrolled Pressure Reducing Valve (PR
68-410 Metal Mini-Pilot
Orifice
68-410
IN
IN
OUT
0
I 0
2
2
1
1
3-way N.O
28-200

30. 30
Non-Return, Pressure Reducing Valve (PR/CV)
using 68-410 Metal Pilot
Orifice 68-410
IN OUT
0
I 0
Check
Valve
Check
Valve

31. 31
Proportional Pressure Reducing Valve (PRD)

32. 32
Pressure Sustaining Valve (PS)
using 29-200 Plastic Pilot (Blue)
29-200
A
O
C
4
3
2
1

33. 33
29-20029-200
1
N.C. Electrically Controlled Pressure Sustaining Valve
(PS/EL) using 29-200 Plastic Pilot (Blue)
and Aquative Solenoid
2 3
4
A
A
B
V
P
C
C
O

34. 34
N.C. Electrically Controlled Pressure Sustaining Valve
(PS/EL) using 29-200 Plastic Pilot (Blue)
29-200
A
O
C
N.C.
4 3
2
2
1
1C

35. 35
Pressure Sustaining Valve (PS)
using 31-10S Metal Pilot
ressure Sustaining Valve (PS) using
Metal Mini Pilot
31-10S
A
O
C
4 3
2
1

36. 36
N.C. Electrically Controlled Pressure Sustaining Valve
(PS/EL) using 31-10S Metal Pilot
(PS/EL) using 31-10S Metal Mi
3-way N.C 31-10S
A
O
C
4 3
2
1
21

37. 37
Pressure Sustaining Valve (PS)
using 31-310 Metal Pilot
essure Sustaining Valve (PS) using 3
Metal Pilot
31-310
A
O
C
4
3
2
1

38. 38
N.C. Electrically Controlled Pressure Sustaining Valve
(PS/EL) using 31-310 Metal Pilot
Electrically Controlled Pressure Susta
(PS/EL) using 31-310 Metal P
31-310
A
O
C
21
4
3
2
1
3-way N.C

39. 39
Pressure Sustaining Valve (PS)
using 68-510 Metal Pilotssure Sustaining Valve (PS) using 6
Metal Mini-Pilot
68-510
I
0
I

40. 40
N.C. Electrically Controlled Pressure Sustaining Valve
(PS/EL) using 68-51A Metal Pilot
68-51A
Orifice
I
3-way N.C
C
2
1
0

41. 41
Pressure Sustaining Valve (PS)
using CXPS Metal Pilot
CXPS
0
I
I
C

42. 42
N.C. Electrically Controlled Pressure Sustaining Valve
(PS/EL) using CXSD Metal Pilot
CXSD
0I
I
21
3-way N.O
C

43. 43
Flow Rate Control Valve (FR)
using 29-310 Plastic Pilot
ate Control Valve (FR ) using 29-310
Mini-Pilot
29-310
A
O
C
4 3
2
1
5
Orifice Plate

44. 44
Flow Rate Control Valve (FR)
using 31-10F Metal Pilot (up to 6")
Rate Control Valve (FR) using 31-10
Mini-Pilot
31-10F
A
O
C
4 3
2
1 5
Orifice Plate

45. 45
Flow Rate Control Valve (FR)
using 76-200 Metal Pilot (8" and larger)
76-200
A
O
C
4
3
2
1
5
Orifice Plate

46. 46
Excessive Flow Shut-off Valve (FE)
using 31-10F Metal Pilot
sive Flow Shut-off Valve (FE) using
Metal Mini-Pilot
31-10F
A
O
C
3
2
1
5
4
Orifice Plate

47. 47
Differential Vertical Float Controlled Valve (FLDI1)
using 70-550 Plastic Float Actuated Metal Pilot
a
Actuated Pilot
70-550
A
O
VP
B
T
C

48. 48
Differential Horizontal Float Controlled Valve (FLDI2)
using 70-610 Plastic Float Actuated Metal Pilot
al Float Controlled Valve (FLDI2) using 70
Actuated Pilot
70-610
A
O
C
3
2
4

49. 49
Modulating Float Controlled Valve (FL)
using 70-300 Plastic Float Actuated Plastic Pilot
Orifice
70-300

50. 50
Modulating Float Controlled Valve (FL)
using 70-400 Plastic Float Actuated Metal Pilot
ntrolled Valve (FL) using 70-400 Floa
Orifice
70-400

51. 51
Altitude Control Valve (AL)
using 70-110 Metal Pilot
ude Control Valve (AL) using 70-110
Pilot
Connection to tank
70-110
A
O
C
4
31
2

52. 52
29-100 (Black) and 29-200 (Blue) Plast
Mini Pilots
29-200
29-100
A
O
C
4 3
1
2
4
1
2
3
Pressure Reducing and Sustaining Valve (PRPS)
using 29-100 (Black) and 29-200 (Blue) Plastic Pilots

53. 53
Pilots
29-10R
29-200
Pressure Reducing and Sustaining Valve (PRPS) using
29-10R (Black) and 29-200 (Blue) Plastic Mini Pilots
A
O
C
4 3
2
14 3
2
1

54. 54
N.C. Electrically Controlled Pressure Reducing and
Sustaining Valve (PRPS/EL)
using 29-100 (Black) and 29-200 (Blue) Plastic Pilots
Sustaining Valve (PRPS/EL) using 29-100
and 29-200 (Blue) Plastic Mini Pilot
29-100
29-200
N.C.
A
O
C
4 3
2
2
1
1
4
1
3
2
C

55. 55
Electrically Controlled Pressure Reducing and
Sustaining Valve (PRPS/EL) using 29-10R (Black) and
29-200 (Blue) Plastic Mini Pilots
29-200
29-10R
A
O
C
N.O.
2
1
4
3
2
1
4
3
2
C
1

56. 56
Pressure Reducing and Sustaining Valve (PRPS)
using 31-10R and 31-10S Metal Pilots
ssure R educing and S ustaining Valve
using 31-10R and 31-10S Pilots
A
O
C
4 32
1
4
3
2
1

57. 57
N.C. Electrically Controlled Pressure Reducing
and Sustaining Valve (PRPS/EL)
using 31-10R and 31-10S Metal Pilots
Controlled Pressure Reducing and Su
PRPS/EL) using 31-10R and 31-10S P
31-10S31-10R
A
O
C
4 32
1
4
3
2
2
1
1
3-way N.C

58. 58
Pressure Reducing and Sustaining Valve (PRPS)
using 31-310 Metal Pilots
31-310
(PR)
31-310
(PS)
A
O
C
4
43
2
2
1
1 3

59. 59
N.C. Electrically Controlled Pressure Reducing and
Sustaining Valve (PRPS/EL)
using 31-310 Metal Pilots
31-310
(PR)
31-310
(PS)
A
O
C
4
11
2
2
3
2
1
3-way
N.C
3
4

60. 60
Quick Relief Valve (QR)
using 68-510 Metal Pilot (up to 2")
68-510
0
C
I
I

61. 61
Quick Relief Valve (QR)
using 68-510 Metal Pilot (3" and 6")Relief Valve (QR) using 68-510 Pilot
Needle
Valve
68-510
28-200
0
I
I
C
2
1

62. 62
Quick Relief Valve (QR)
using 68-510 Metal Pilot (8" and larger)
larger)
Needle
Valve
68-510
0
I
I
C

63. 63
Quick Relief Valve (QR)
using 68-215 Metal Pilot (11/2" - 4")
0I

64. 64
Pump Controlled Valve (BC)
using 300 Series
1 2
Needle
Valve
Needle
Valve
Check
Valve
Check
Valve
3-way N.C

65. 65
I
Surge Anticipating Valve (RE)
using 68-510 and 31-10R Metal Pilots (up to 4")
31-10R
68-510
Connected to pump
main header
4
3
2
2
1
1
0
28-200

66. 66
Pressure Reducing (PR):
The valve will regulate to maintain a set downstream
pressure, regardless of upstream pressure or flow
variations.
Should the downstream pressure fall below the
requested value, the valve will open fully.
Pressure Sustaining (PS):
The valve will maintain a steady, predetermined
pressure in the network, upstream of its location.
If the pressure falls below the set-pressure, the valve
closes drip tight.
3-way Pilot Valves:
Ports Marking:
S - Pressure sensing port
P - Port for connection of upstream pressure.
C - Command port, connected to the valve control
chamber.
V - Vent port. Through this port water are vented when
the valve opens.
Operating Principle:
CLOSE - Connects ports P to C thus letting the
upstream pressure into the valve bonnet.
OPEN - Connects ports C to V thus venting the
pressure in the valve bonnet.
LOCK - Keep the valve in the present position by
blocking all ports.
Control Accessories - General

67. 67
2-way Pilot Valves:
Operating Principle:
Increases or decreases a drainage passage from the
valve control chamber to downstream. The inlet to the
chamber is via a fixed orifice or a regulated needle valve.
CLOSE - The drainage flow through the pilot is smaller
than the inlet flow.
OPEN - The drainage flow through the pilot is larger
than the inlet flow.
LOCK - The drainage flow through the pilot is equal to
the inlet flow.
3-way Manual Selector Valve:
A ball valve with one common (fixed)
port and three functional ports:
“CLOSE” - Connected to the upstream.
“OPEN” - Vented to the atmosphere.
“AUTO” - Connected to the command
port of the control device (pilot,
solenoid etc.).
Needle Valve / Orifice:
For flow limitation in the control
system and reduction of the response
speed of the main valve.
Shuttle Valve:
Tee shaped pressure selector -
selecting the higher pressure when
the valve is controlled by two pressure
sources.

68. 68
Solenoid Aquative
3-Way Solenoid
A A"
ns from
NO Energized
B
NO De-energized
B
COM COM
ration 2
No De-energized
B
(vent)
No Energized
NC De-energized
Note:
NC/NO is refering to the Hydraulic valve
NC Energized
B
(vent)
A
(vent)
COM
(command)
COM
(command)
A (pressure)A (pressure)
B
(pressure)
B
(pressure)
COM
(command)
COM
(command)
A
(vent)

69. 69
Converts electric pulses to an hydraulic
command
Ports Marking:
P - Pressure port. Connected to the
upstream pressure.
C - Connected to the control chamber
of the valve.
V - Pressure venting port.
Solenoid Gemsol
3-Way Solenoid
P
C
P
C V
V
C
V
C P
V
P
Normally
open
De-Energised
Normally
closed
Energised
De-Energised Energised
2
(2) (1)
1 C
(2) (1)
(2) (1) (2) (1)

70. 70
29-100
Pressure-Reducing, 3-Way Plastic Pilot-Valve
4
1
2
3
Low pressure High pressure Required pressure
29-100
Connections
Port Pressure Reducing
1 Downstream
2 Valve Control Chamber
3 Vent
4 Upstream
Low pressure Required pressureHigh pressure

71. 71
29-10R
Pressure-Reducing, 3-Way Plastic Pilot-Valve
64
29-100
4
1
2
3
29-10R
Pressure-Reducing, 3-Way Plastic Pilot-Valve
29-100
Low pressure Required pressureHigh pressureLow pressure Required pressureHigh pressure
Connections
Port Pressure Reducing
1 Downstream
2 Upstream
3 Valve Control Chamber
4 Vent

72. 72
29-200
Multi-Purpose, 3-Way Plastic Pilot-Valve
Connections
Port Pressure Sustaining Pressure Reducing
1 Upstream Downstream
2 Upstream Vent
3 Valve Control Chamber Valve Control Chamber
4 Vent Upstream
4
1
2
3
Low pressure High pressure Required pressure
29-200
Low pressure
(Shown in Pressure Reducing mode)
Required pressureHigh pressure

73. 73
29-310
Differential Pressure Reducing, 3-Way Plastic Pilot-Valve
12
3
4
5
Low pressure High pressure Required pressure
29-310
Connections
Port Flow Rate
1 Upstream orifice pressure
2 Upstream
3 Valve Control Chamber
4 Vent
5 Downstream orifice pressure
Required differential
pressure
High differential
pressure
Low differential
pressure

74. 74
Connections
Port Shown in Quick Pressure Relief
I Upstream
C Valve Control Chamber
0 Downstream
68-215
Quick-Acting, 2-Way Pressure-Relief Metal Pilot-Valve
I O
C
68-215
–
Low pressure High pressure
‫ה‬‫ם‬‫ו‬‫ה‬‫ת‬‫א‬‫מ‬‫ה‬
‫ה‬‫ב‬‫ק‬‫ט‬‫ל‬‫ו‬‫ג‬

75. 75
68-410
Pressure-Reducing, 2-Way Metal Pilot-Valve
Low pressure High pressure Required pressure
I O
Connections
Port Pressure Reducing
I1 Valve Control Chamber
I2 Upstream (Through Orifice)
01 Downstream
02 Pressure gauge (optional)
Low pressure Required pressureHigh pressure

76. 76
68-510
Pressure-Sustaining/Relief, 2-Way Metal Pilot-Valve
I O
C
Low pressure High Pressure
Connections
Port Pressure Sustaining / Relief
I Upstream
C Valve / Relay Control Chamber
O Downstream
Low pressure High pressure
Low pressureHigh pressure
I O
C
Standard version
I O
C
Low pressHigh pressure

77. 77
31-10R
Pressure-Reducing, 3-Way Metal Pilot-Valve
1
3
4
2
Low pressure High pressure Required pressure
PSIColorSpring number
22 - 175RED124
7 - 85GREEN130
Port
Downstream1
2
3
4
Upstream
Control chamber
Vent
Pressure reducing
31-10R
Connections
Port Pressure Reducing Differential P. Reducing
1 Downstream High Sensing Pressure
2 Upstream Upstream
3 Valve Control Chamber Valve Control Chamber
4 Vent Vent
5 - Low Sensing Pressure
Low pressure Required pressureHigh pressure

78. 78
31-10S
Pressure-Sustaining, 3-Way Metal Pilot-Valve
1
3
4
2
Low pressure High pressure Required pressure
31-10S
Connections
Port Pressure Sustaining Differential P. Sustaining
1 Upstream Pressure Upstream Pressure
2 Vent Vent
3 Valve Control Chamber Valve Control Chamber
4 Upstream Pressure Upstream Pressure
5 - Downstream Pressure
Low pressure Required pressureHigh pressure

79. 79
31-10F
Rate of Flow, 3-Way Metal Pilot-Valve
12
3
4
5
Low flow High flow Required flow
31-10F
Connections
Port Flow Rate
1 Upstream Orifice Plate
2 Upstream Orifice Plate
3 Valve Control Chamber
4 Vent
5 Downstream Orifice Plate
Low pressure Required pressureHigh pressure

80. 80
31-310
Multi-Purpose, 3-Way Metal Pilot-Valve
1
3
4
2
z
Low pressure High pressure Required pressure
Connections
Port Pressure Reducing Pressure Sustaining
1 Downstream Pressure Upstream Pressure
2 Vent Upstream Pressure
3 Valve Control Chamber Valve Control Chamber
4 Upstream Pressure Vent
Low pressure Required pressureHigh pressure
z
z z
(Shown in Pressure Reducing mode)

81. 81
66-310
Multi-Purpose 3-Way Metal Pilot And Relay-Valve
1
3
4
2
Normal pressure High pressure
Connections
Port 66-310 / 68-710 P. Relief 66-310: Relay
1 Upstream Command
2 Plugged N.O. Port
3 Valve Chamber Valve Chamber
4 Vent N.C. Port
Low pressure High pressure
(Shown in Pressure Relief mode)

82. 82
CXPR
Pressure-Reducing, 2-Way Metal Pilot-Valve
Connections
Port Pressure Reducing
I Upstream
C Valve Control Chamber
O Downstream
OC
I
Low pressure High pressure RequiredLow pressure High pressure

83. 83
CXPS
Pressure-Sustaining/Relief, 2-Way Metal Pilot-Valve
C
OI
Low pressure High pressureLow pressure High pressure
Connections
Port Pressure Sustaining
I Upstream
C Valve Control Chamber
O Downstream

84. 84
76-200
Multi Purpose, 3-Way Metal Pilot-Valve
1
3
4
2
z
5
Low flow High flow Required flow
76-200
Connections
Port Flow-rate control Excessive flow Shut-Off
1 Upstream Orifice Upstream Orifice
2 Vent Plug
3 Control Chamber Control chamber
4 Upstream Orifice Upstream Orifice
5 Downstream Orifice Downstream valve
Low flow Required flowHigh flow
z
z z
(Shown in Flow-rate control mode)

85. 85
70-110
Altitude Control, 3-Way Metal Pilot-Valve
W
H
2
4
1
3
Low pressure Required pressureHigh pressure
Connections
Port Altitude
1 Sensing
2 Upstream
3 Valve Control Chamber
4 Vent

86. 86
70-300
Modulating, 2-Way Float Actuated Plastic Pilot-Valve450 mm
High level Low level

87. 87
70-400
Modulating, 2-Way Float Actuated Metal Pilot-Valve
220mm
680 mm
Max. level Low level

88. 88
70-550
Differential, 3 Or 4-WayVertical Float Actuated Metal Pilot-Valve
Max. level Min. level
Max. level
Min. level
Max. level
Min. level
Connections
Port Level control
P Upstream
T Valve Control Chamber
V Vent
B Plug*

89. 89
70-610
Differential, 3-Way Horizontal Float Actuated Metal Pilot-Valve
Max. level Min. level
Max. level
Min. level
Max. level
Min. level
Connections
Port
2 Upstream
3 Valve Control Chamber
4 Vent
2
3
4

90. 90
25-300
Hydraulic Accelerator Relay, 3-Way Plastic Pilot-Valve
1
3
2
4
Command vented Command pressur
Connections
Port Relay N.C.
1 Pressure Command
2 Vent
3 Valve Control Chamber
4 Upstream
De-pressurized command Pressurized command

91. 91
Galit
Hydraulic Relay, 3-Way Plastic Pilot-Valve
1
3
2 4
Command vented Command pressurized
Connections
Port N.C. Main Valve N.O. Main Valve
1 Pressure Command Pressure Command
2 Upstream Pressure Vent
3 Vent Upstream Pressure
4 Valve Control Chamber Valve Control Chamber
De-pressurized command Pressurized command
(Shown in N.C. Main Valve mode)

92. 92
28-200
Hydraulic Accelerator Relay, 2-Way Metal Pilot-Valve
3
2
1
Command vented Command pressurized
28
Connections
Port
1 Command
2 Inlet
De-pressurized command Pressurized command

93. 93
28-300
Hydraulic Accelerator Relay, 3-Way Metal Pilot-Valve
Connections
Port Relay N.C Relay N.O.
1 Command Command
2 Vent Upstream
3 Valve Control Chamber Valve Control Chamber
4 Upstream Vent
1
32
4
Normally
open
Normally
closed
Command vented Command pressurized
Command vented Command pressurized
28-30
N.O.
N.C.
De-pressurized command Pressurized command
De-pressurized command Pressurized command

94. 94
Hydraulic Equations
Headloss Calculation
Headloss Calculation Using K (Dimensionless)
Relief Valve Sizing
Q=gpm
Cv - taken from the technical
publications
Result given in PSI
Q=m3
/h
Kv - taken from the technical
publications
Result given in Bar
v=f/s
g=32.17f/s2
Result given in PSI
v=m/s
g=9.8m/s2
Result given in mwc
Q=gpm - Relief flow
(designed flow at set relief pressure)
P=psi - Required set pressure
Result given in inches
Q=m3
/h - Relief flow
(designed flow at set relief pressure)
P=mwc - Required set pressure
Result given in mm
Cavitation Calculation
P=psi
For Dorot 300 Series σc ≥1.45 is safe
For Dorot 100 & 500 Series σc ≥ 1.55 is safe
P=mwc
For Dorot 300 Series σc ≥ 1.45 is safe
For Dorot 100 & 500 Series σc ≥ 1.55
is safe
Headloss calculation
Q=
Cv
Q=m3/h
Kv – taken from the technical publications
Result given in Bar
Headloss calculation using K (dimen
v=f
g=3
v=m/s
g=9.8m/s2
Result given in mwc
Relief Valve Sizing
Q=
P=p
Q=m3/h – Relief flow
(designed flow at set relief pressure)
P=mwc – Required set pressure
Result given in mm
Cavitation Calculation
P=p
For
For
P=mwc
For Dorot 300 Series ≥ 1.45 is safe
For Dorot 100 & 500 Series ≥1.55 is safe
Q=gpm
Cv – taken from the technical publications
Result given in PSI
ns
Bar
ng K (dimensionless)
v=f/s
g=32.17f/s
2
Result given in PSImwc
Q=gpm – Relief flow
(designed flow at set relief pressure)
P=psi – Required set pressure
Result given in inches
sure)
mm
P=psi
For Dorot 300 Series ≥1.45 is safe
For Dorot 100 & 500 Series ≥1.55 is safeafe
Headloss calculation
Q=gp
Cv –
Q=m3/h
Kv – taken from the technical publications
Result given in Bar
Headloss calculation using K (dimens
v=f/s
g=32
v=m/s
g=9.8m/s2
Result given in mwc
Relief Valve Sizing
Q=gp
P=ps
Q=m3/h – Relief flow
(designed flow at set relief pressure)
P=mwc – Required set pressure
Result given in mm
Cavitation Calculation
P=ps
For D
For D
P=mwc
For Dorot 300 Series ≥ 1.45 is safe
For Dorot 100 & 500 Series ≥1.55 is safe
Q=gpm
Cv – taken from the technical publications
Result given in PSI
ons
Bar
ng K (dimensionless)
v=f/s
g=32.17f/s
2
Result given in PSImwc
Q=gpm – Relief flow
(designed flow at set relief pressure)
P=psi – Required set pressure
Result given in inches
ssure)
mm
P=psi
For Dorot 300 Series ≥1.45 is safe
For Dorot 100 & 500 Series ≥1.55 is safesafe
Headloss calculation
Q=gp
Cv –
Q=m3/h
Kv – taken from the technical publications
Result given in Bar
Headloss calculation using K (dimens
v=f/s
g=32
v=m/s
g=9.8m/s2
Result given in mwc
Relief Valve Sizing
Q=gp
P=ps
Q=m3/h – Relief flow
(designed flow at set relief pressure)
P=mwc – Required set pressure
Result given in mm
Cavitation Calculation
P=ps
For D
For D
P=mwc
For Dorot 300 Series ≥ 1.45 is safe
For Dorot 100 & 500 Series ≥1.55 is safe
Q=gpm
Cv – taken from the technical publications
Result given in PSI
ons
n Bar
ing K (dimensionless)
v=f/s
g=32.17f/s
2
Result given in PSIn mwc
Q=gpm – Relief flow
(designed flow at set relief pressure)
P=psi – Required set pressure
Result given in inches
ssure)
n mm
P=psi
For Dorot 300 Series ≥1.45 is safe
For Dorot 100 & 500 Series ≥1.55 is safesafe
Headloss calculation
Q=
Cv
Q=m3/h
Kv – taken from the technical publications
Result given in Bar
Headloss calculation using K (dimen
v=f
g=3
v=m/s
g=9.8m/s2
Result given in mwc
Relief Valve Sizing
Q=
P=p
Q=m3/h – Relief flow
(designed flow at set relief pressure)
P=mwc – Required set pressure
Result given in mm
Cavitation Calculation
P=p
For
For
P=mwc
For Dorot 300 Series ≥ 1.45 is safe
For Dorot 100 & 500 Series ≥1.55 is safe
Q=gpm
Cv – taken from the technical publications
Result given in PSI
ns
Bar
ng K (dimensionless)
v=f/s
g=32.17f/s
2
Result given in PSImwc
Q=gpm – Relief flow
(designed flow at set relief pressure)
P=psi – Required set pressure
Result given in inches
sure)
mm
P=psi
For Dorot 300 Series ≥1.45 is safe
For Dorot 100 & 500 Series ≥1.55 is safeafe

95. 95
Units Conversion
Port Unit Conversion Unit Factor
Pressure
1 psi bar 0.06895
1 bar psi 14.5035
1 Kg / cm2
psi 14.22
1 psi Kg / cm2
0.07
1 kPa bar 0.01
1 bar kPa 100
1 metre bar 0.1
1 bar metre 10
Length
1 inch mm 25.4
1 mm 1 inch 0.03934
1 ft metre 0.3048
1 metre ft 3.28064
Volume
m3 gal 264.2
gal m3 0.00378
m3
ft3 35.315
ft3
m3 0.0283
1 gal litre 3.78533
1 litre gal 0.264177
Weight
1 lb kg 0.453592
1 kg lb 2.204622
Flow Rate
1 m3
/ h gpm 4.405
1 gpm m3
/ h 0.227
1 gal / min (US) l / min 3.78533
1 l / min 1 gal / min (US) 0.264178
1 l / s gpm 15.873
1 gpm l / s 0.063
Velocity
1 ft / s m / s 0.3048
1 m / s ft/s 3.28084

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