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    1/8 Inch Digital Air Pressure Regulator, 50~1000 mbar

    5 out of 5 based on 2 reviews | Write a review
    Proportional digital air pressure regulator for sale. Pressure setting range 50~1000 mbar (14.5 psi), maximum flow 200L/min, power supply DC 24V, hose port 1/8 inch or 1/4 inch, input signal current 4~20mA or voltage DC 0~5V/10V, monitor output analog/switch output. Pneumatic pressure regulator valve with electronic digital display, low price.
    SKU: ATO-PPPR-1018
    30-day Returns
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    Delivery date: 6-12 days

    Proportional electric-pneumatic pressure regulator has an adjustment range of 50~1000 mbar (max 14.5 psi), max flow 200L/min, working voltage DC 24V, optional input signal current 4~20mA or voltage DC 0~5V/10V, connection port suits 1/8 inch or 1/4 inch hose. The air pressure regulator is an electronic proportional valve, for pneumatic control system.


    Model ATO-NITV101
    Minimum supply pressure Set pressure + 1000 mbar (+0.1 MPa)
    Maximum supply pressure 2000 mbar (0.2 MPa)
    Set pressure range 50~1000 mbar (0.005 to 0.1 MPa )
    Max. Flow 200L/min
    Power supply Voltage DC 24V ± 10%, DC 12~15V
    Current consumption Power supply voltage DC 24V type: 0.12 A or less
    Power supply voltage DC 12~15V type: 0.18 A or less
    Input signal Current type *Note 1 DC 4~20mA, DC 0~20mA (Sink type)
    Voltage type DC 0~5V, DC 0~10V
    Preset input 4 points (Negative common), 16 points (No common polarity)
    Input impedance Current type 250 Ω or less *Note 4
    Voltage type Approx. 6.5 kΩ
    Digital input Power supply voltage DC 24V type: Approx. 4.7 kΩ.
    Power supply voltage DC 12V type: Approx. 2.0 kΩ
    Output signal (monitor output) *Note 2 Analog output DC 1~5V (Output impedance: Approx. 1 kΩ)
    DC 4~20mA (Sink type) (Output impedance: 250 Ω or less) Output accuracy ± 6% F.S. or less
    Switch output NPN open collector output: Max. 30V, 80mA PNP open collector output: Max. 80mA
    Linearity ± 1% F.S. or less
    Hysteresis 0.5% F.S. or less
    Repeatability ± 0.5% F.S. or less
    Sensitivity 0.2% F.S. or less
    Temperature characteristics ± 0.12% F.S./ ℃ or less
    Output pressure display *Note 3 Accuracy ± 2% F.S. ± 1 digit or less
    Minimum unit Mpa: 0.001, kgf/cm2: 0.01, bar: 0.01, psi: 0.1, kPa: 1
    Ambient and fluid temperature 0 to 50℃ (No condensation)
    Enclosure ip65
    Port size 1/8 inch, 1/4 inch
    Weight Approx. 250 g (without options)


    1. 2-wire type 4 to 20 mA DC is not available. Power supply voltage (DC 24V or DC 12~15V) is required.
    2. Select either analog output or switch output. Further, when switch output is selected, select either NPN output or PNP output. When measuring NITV analog output from 1 to 5 VDC, if the load impedance is less than 100 kΩ, the analog output monitor accuracy of within ±6% (full span) may not be available. The product with the accuracy of within ±6% is supplied upon your request. Output pressure remains unaffected.
    3. Adjustment of numerical values such as the zero/span adjustment or preset input type is set based on the minimum units for output pressure display (e.g. 10~5000 mbar). Note that the unit cannot be changed.
    4. Value for the state with no over current circuit included. If an allowance is provided for an over current circuit, the input impedance varies depending on the input current. This is 350Ω or less for an input current of 20mA DC.


    1. Proportional air pressure regulator adopts electrical proportional method to achieve stepless control of outlet pressure. It can realize remote control and program control.
    2. Compared with hydraulic proportional valves, proportional pressure regulators are small in size, light in weight, compact in structure, light in weight and low in cost.
    3. The control of electro-pneumatic pressure regulator is continuous control, and its characteristic is that the output quantity changes with the change of input quantity (current value or voltage value), and there is a certain proportional relationship between the output and input.
    4. Proportional air pressure regulator has many types, which can be used with various electrical equipment and computers to control various electro-hydraulic systems. High control precision, flexible installation and strong anti-pollution ability.

    50~1000 mbar 50~1000 mbar Air Pressure Regulator Dimensions (Unit: mm)

    • Digital Air Pressure Regulator with Flat Bracket*

    Dimensions of 50~1000 mbar 1/8 inch Proportional Pressure Regulator with Flat Bracket

    • Digital Air Pressure Regulator with L-Shape Bracket*

    Dimensions of 50~1000 mbar 1/8 inch Proportional Pressure Regulator with L-shape Bracket

    *Note: The bracket is the option.

    Tips: What is a proportional air ressure regulator?

    The proportional pressure regulator adjusts the cross-sectional area of the valve core according to the control signal, so as to achieve the purpose of pressure adjusting. Proportional pressure regulator controls the flow rate can be divided into two types. One is switch control, and the other is continuous control. The difference between servo valve and other valves is that its energy loss is greater, because it needs a certain flow to maintain the work of the pre-stage control oil circuit.

    Switch control: either fully open or fully closed. The flow is either the largest or the smallest, and there is no intermediate state. For example, ordinary electromagnetic direct valve, electromagnetic reversing valve, electro-hydraulic reversing valve. Continuous control: The valve port can be opened to any degree of opening as required, thereby controlling the flow through. Such valves are manually controlled, such as throttle valves, and electronically controlled, such as proportional valves and servo valves. Proportional pressure regulator controls air pressure through electrical signals, which can realize continuous and stepless adjustment of air pressure, and can realize remote control and program control. Proportional pressure regulator is especially suitable for occasions where continuous or stepless adjustment of air pressure is required.

    Existing reviews of 1/8 Inch Digital Air Pressure Regulator, 50~1000 mbar
    Inquire about the Electro-Pneumatic Pressure Regulator.
    We are considering this model for our sensor manufacturing processes, which require precise pressure control within a range of 0-50 kPa. Before proceeding, we would appreciate clarification on a few technical aspects of this pressure regulator:

    Maximum Supply Pressure: Could you please confirm the maximum supply pressure that this regulator can handle?

    Vacuum Supply Specification: The product is described as having a vacuum supply. Could you clarify why it is specified in this manner? Additionally, are vacuum and pressure functionalities interchangeable in this context?
    From: Harry | Date: 06/02/2024
    Was this review helpful? Yes No (0/0)
    ATO Responded
    1. If you want precise pressure control in the range of 0-50 kPa, we recommend =Digital Air Pressure Regulator, 50~1000 mbar, SKU: ATO-PPPR-1018, the set pressure range is 0.005 to 0.1 MPa , the maximum pressure is 0.2Mpa.

    2. The model you are looking at, the 1/4 Inch Electro-Pneumatic Pressure Regulator ATO-NITV209, is used to regulate negative pressure.

    If used completely in a vacuum environment, the negative pressure range that can be set is -1.3~-80 kPa.
    What size is the port of the regulatyor?
    What size is the port of the regulatyor? Is this accurate at low pressures? Eg, would it work to fill my paddle board to 15psi and automatically shut off? I wish you can help me!
    From: lian | Date: 11/04/2022
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Its port has 1/8 inch or 1/4 inch. It is pressure regulator, it only regulate the max pressure your compressor puts out, doesn't aromatically cut off the compressor. If you are looking for 15 lb to air something out you have to set regulator to 30 because pressure equilizes.
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