MVPP
PILOT OPERATED
CHECK VALVE
SERIES 50
HYDRAULIC SYMBOLS
OPERATING PRINCIPLEMOUNTING INTERFACE
— This is a check valve (spring closing and cone on edge
seals) with a built-in flow control feature. The mounting
surface is according to the ISO 4401 (CETOP RP 121H)
standards
— Its use allows:
- prevention of flow one-way;
- flow in one-way, if opened by a pilot pressure;
- free flow in the other way.
— The MVPP are always mounted under the ISO 4401-03
(CETOP 03) directional solenoid valves and can be
assembled with all other ISO 4401-03 (CETOP 03) valves.
CONFIGURATIONS (see hydraulic symbols table)
— Configurations “SA” - “SB”: are used to lock the actuator in one direction.
— Configuration “D”: is used to lock the position of the actuator in both directions.
PERFORMANCES (measured with mineral oil of viscosity 36cSt at 50°C)
Maximum operating pressure
Check valve cracking pressure
bar
350
3
Maximum flow rate in controlled lines
Maximum flow rate in the free lines
l/min
50
75
Ratio between the pressure in the locked
chambers and the piloting pressure
3,4:1
Ambient temperature range °C -20 / +50
Fluid temperature range °C -20 / +80
Fluid viscosity range cSt 10 ÷ 400
Fluid contamination degree
According to ISO 4406:1999
class 20/18/15
Recommended viscosity cSt 25
Mass: kg 1,3
MODULAR VERSION
ISO 4401-03 (CETOP 03)
p max
350 bar
Q max (see table of performances)
ISO 4401-03-02-0-05
(CETOP 4.2-4-03-350)