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62 310/122 ED
PZM5
PILOT OPERATED
PRESSURE REDUCING VALVE
SERIES 10
HYDRAULIC SYMBOLS
OPERATING PRINCIPLEMOUNTING INTERFACE
— The PZM5 valve is a pilot operated pressure reducing
valve, shaped as modular version with mounting surface
according to ISO 4401 standards.
— It reduces pressure on secondary circuit branches,
assuring stability of the controlled pressure and even
changing the flow that passes through the valve.
— It can be assembled quickly under ISO 4401-05
directional solenoid valves without the use of pipes.
— It is supplied with a hex socket adjustment screw, locking
nut and a travel limiting device for maximum adjustment.
— Three pressure adjustment ranges are available, up to
280 bar.
ISO 4401-05-04-0-05
(CETOP 4.2-4-05-350)
MODULAR VERSION
ISO 4401-05
p max
350 bar
Q max (see table of performances)
Maximum operating pressure bar 350
Maximum flow rate in the controlled line P
Maximum flow rate in the free lines
Drain flow rate
l/min
80
100
< 0,8
Ambient temperature range °C -20 / +60
Fluid temperature range °C -20 / +80
Fluid viscosity range cSt 10 ÷ 400
Recommended effective viscosity cSt 25
Fluid contamination degree
according to ISO 4406:1999
class 20/18/15
Mass kg 2,7
PERFORMANCES
(measured with mineral oil of viscosity 36 cSt at 50 °C)
62 310/122 ED
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PZM5
SERIES 10
REPRODUCTION IS FORBIDDEN. THE COMPANY RESERVES THE RIGHT TO APPLY ANY MODIFICATIONS.
1 - IDENTIFICATION CODE
2 - CHARACTERISTIC CURVES
(values obtained with viscosity of 36 cSt at 50 °C)
1) pressure drops
P
1
→P
2) pressure drops
on free lines
(ex. A→A
1
)
dimensions in mm
ADJUSTMENT PRESSURE DROPS Δp - Q
3 - HYDRAULIC FLUIDS
Use mineral oil-based hydraulic fluids HL or HM type, according to ISO 6743-4. For these fluids, use NBR seals. For fluids HFDR type
(phosphate esters) use FPM seals (code V). For the use of other kinds of fluid such as HFA, HFB, HFC, please consult our technical
department. Using fluids at temperatures higher than 80 °C causes a faster degradation of the fluid and of the seals characteristics. The fluid
must be preserved in its physical and chemical characteristics.
4 - OVERALL AND MOUNTING DIMENSIONS
1 Locking nut
spanner 19
2 Socket hex
adjustment screw:
Allen key 6.
Rotate clockwise to
increase pressure
3 Mounting surface
with sealing rings:
5 OR type 2050
(12.42x1.78)
90 Shore
4 Pressure gauge port
1/4” BSP
5 Adjustment knob K
Versions:
P = pressure reduction in P. Internal drain to line T
B
PA = pressure reduction in line P-A when line B is connected to the
tank; full pressure in line P-B
PB = pressure reduction in line P-B when line A is connected to the
tank; full pressure in line P-A.
Series No. (the overall and mounting dimensions
remain unchanged from 10 to 19)
Option: K = Adjustment knob.
(Omit for adjustment with hex socket
screw)
Pressure adjustment range:
070 = 8 ÷ 70 bar 150 = 8 ÷ 150 bar 280 = 8 ÷ 280 bar
Pressure reducing valve, pilot operated
Modular version
Size ISO 4401-05
Z M 5 - / /10P
Seals:
N = NBR seals for mineral oils (standard)
V = FPM seals for special fluids
