J814 Series Servo Valves

J814 Series Pneumatic Servo Valves are highly responsive and accurate 3- and 4-way pneumatic servo valves. With excellent reproducibility between command signal and control pressure, these valves are suitable for pressure or power control, vibration control, and position control in pneumatic systems. The 3-way valves can also be used when a vacuum is applied.

The 3-way valves are single stage and available in both standard and high flow versions. The standard type has rated flow of 1 ～ 50 NL/min with valve pressure loss of 0.5 MPa, while the high flow type has rated flow up to 200 NL/min. A pair of nozzles and a flapper are driven by a torque motor with air gaps. The design is simple and durable for long term reliability.

The 4-way valves have an orifice in the upper stream of each nozzle, providing two control ports. These valves are also single-stage, with a rated flow of 1 ～ 14 NL/min, with a valve pressure loss of 0.5 MPa.

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Single-stage type nozzle flapper valves with torque motors
High resolution and low hysteresis
Compact and light
Low power consumption
High response for improved control capability
Sturdy long-life design free of sliding surfaces

Item	J814 (3-way type)	J814 (4-way type)
Rated flow (@valve pressure drop 500 kPa)	1 ～ 50 NL/min	1 ～ 14 NL/min
Rated pressure	1,000 kPa
Range of controlled pressure	0 ～ 1,000 kPa
Supply-side pressure resistance	1,500 kPa
Return-side pressure resistance	1,500 kPa
Rated current	0 ～ 100 mA	± 100 mA
Hysteresis	≦3.0 %
Operating temperature range	−10 - 60 ℃
Fluid types	Compressed air
Mass	Approximately 400 g