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A When a certain amount of drainage is accumulated, the automatic discharge operation is the same for N.O. (normally open) and N.C. (normally closed) types.
When the air pressure in the outlet side piping (inside the auto drain) of the air source is less than 0.1 MPa with the air source (compressor) turned OFF, the valve of the auto drain opens and the accumulated drain is discharged.
This is for the N.O. type auto drain. In contrast, the N.C type auto drain maintains the closed state even when pressure is removed.
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A ITV series regulators continuously control the air pressure in proportion to the electrical signal. There are current control, voltage control, and communication control types for electrical signals. The valve body has a 3-port shape with a separate relief exhaust. The pressure acting on the diaphragm is kept constant by opening and closing the solenoid valves on the supply and exhaust sides inside the regulator. The opening and closing of the valves is precisely by the feedback of the pressure sensor, and the regulator has characteristics s controlled imilar to those of a precision regulator. ![ITV series electro-pneumatic regulator]( "ITV series electro-pneumatic regulator")
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A For the standard ITV1000/2000/3000 series electro-pneumatic regulator, either a 4-point or 16-point preset input type can be selected.
The type with 4 points can output up to 4 preset pressures by combining the ON/OFF settings of the 2 input signals of the switch.
The type with 16 points can output up to 16 points by combining the ON/OFF settings of the 4 input signals of the switch.
It is recommended that the pressure be set to 0 MPa for one of the preset pressures for safety reasons.
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A The standard power cable is 3 m, but part numbers are available for lengths of 1, 3, 5, 6, 7, 8, and 10 m.
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A IR series precision regulators adopt a mechanism called a nozzle flapper.
The nozzle flapper controls the back pressure in the pilot chamber by opening and closing the nozzle on the outlet side against the compressed air flowing into the pilot chamber for operating the main valve. It is used for pressure setting.
In this way, the compressed air supplied to the product is constantly flowing into the pilot room in this mechanism, so air is continuously released to the outside even when the pressure at the outlet is not set. This released air is called bleed, and the majority of the air consumption listed in the catalog is bleed air consumption.
Note that bleed is a phenomenon associated with the nozzle flapper, which is separate from the relief action (action to depressurize when the set pressure rises too much).
Note 1) Be sure to use a mist separator in addition to the filters on the inlet side of IR1000/2000/3000 series regulators.
Note 2) Use a mist separator in addition to the filters on the inlet side of new IR1000-A/2000-A/3000-A series regulators if needed.
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A Bodies: Stainless steel (316SS) for marine/chemical use; anodized aluminum for lightweight, non-corrosive setups.
Seals: FKM (Viton) for high temperatures (up to 150°C) or oil resistance; EPDM for water/steam; NBR for standard air applications.
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A Prioritize key parameters:
Pressure range (e.g., 0.5–16 bar for regulators, max inlet pressure for filters).
Port size (G1/8, NPT 1/4", etc.) and thread type (parallel/tapered).
Filtration efficiency (5μm, 1μm, or activated carbon for oil vapor).
Environmental conditions (temperature, humidity, corrosive gases).
Industry standards (food-grade, explosion-proof, or medical compliance).
