BRASS DIRECT ACTION SOLENOID VALVES
The direct action solenoid valves manufactured by OLAB are available in the series 6000, 7000, 8000, 8500, 9000, 10000 and 10500. They are of the direct action magnetic piston type with a CW617N brass casing and stainless steel magnetic parts. In the series 6000, 7000, 8000, 9000 and 10000, gaskets are made of NBR, EPDM peroxide, FKM (FPM) and other elastomers are also available on request, while in the 8500 and 10500 series gaskets are made of synthetic ruby. Models of the series 6000, 7000, 10000 and 10500 are 2/2-ways normally closed type (2 ways 2 positions), while the 8000, 8500 and 9000 valves are 3/2-ways normally closed (3 ways 2 positions).
Coils for solenoid valves are manufactured by us in a plant which is among the most modern in the world and unique in Italy. Coils all belong to the H class, are incorporated with virgin thermoplastic materials and submitted to double test for electric insulation: “in-process” after overmoulding of the housing at high temperatures and “post-process” after 24 hours at room temperature.
BRASS PILOT-OPERATED GUIDED DIAPHRAGM SOLENOID VALVES
MANCA DISEGNO
In the direct action solenoid valves, the electro-pilot has direct control on the solenoid valve opening (N.O. versions) or closing (N.C. versions) when the coil is energized.
In the guided diaphragm pilot operated solenoid valves, the electro-pilot is partially responsible for opening the solenoid valve as it lifts the diaphragm by pulling it upwards. For this reason, it is characterised by the electro-pilot positioned in the middle of the cap and not laterally as in the pilot operated solenoid valves.
3/2 WAYS BRASS DIRECT ACTION SOLENOID VALVES
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| CLOSED POSITION | OPEN POSITION |
CLOSED POSITION
During the quiescent state the coil winding is not energized, the plunger tapered retaining spring, due to fluid pressure, pushes the sealing gasket onto the solenoid valve body seat (hole) and keeps it closed.
The exhaust is connected with the outlet, and they present a balanced pressure level.
OPEN POSITION
When the coil winding is energized, the plunger is attracted by the fixed core, the main hole (DN) is opened and exhaust is simultaneously closed, and the fluid is free to pass directly from inlet to outlet
STAINLESS STEEL SOLENOID VALVES
The solenoid valves of the stainless steel series are the ideal solution when the environmental conditions are severe or aggressive fluids are used and stainless steel is required.
2/2 WAYS BRASS DIRECT ACTION SOLENOID VALVES
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| CLOSED POSITION | OPEN POSITION |
CLOSED POSITION
During the quiescent state the coil winding is not energized, the core spring, because of fluid pressure, pushes the sealing gasket onto the solenoid valve body seat (hole) and keeps it closed.
OPEN POSITION
When the coil winding is energized, the plunger is attracted by the fixed core, the hole (DN) is opened and fluid passes through.
The maximum pressure difference allowed (M.P.O.D.) decreases as the seat diameter increases.
