YTC Type Valve Positioner

YT1000L Electro Pneumatic Valve Positioner

Linear-stroke E/P positioner, 4–20 mA in, 10–150 mm stroke

The YT-1000L is the linear workhorse of the YTC-pattern range: it drives a pneumatic linear (globe, gate, diaphragm) actuator straight from a 4–20 mA DC controller output, with a 10–150 mm stroke window and split-range operation available without changing parts.

Stroke 10–150 mm covers most diaphragm and cylinder linear actuators
1/2 split range set by simple span adjustment — no part replacement
No resonance in the 5–200 Hz band, so it stays calibrated on pump skids
Single or double acting selected by RA/DA changeover on the same body
Aluminium diecast housing, IP66, 2.7 kg

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Typical duty: Linear control valves on steam, water and process lines where the controller sends a 4–20 mA signal and the valve has to hold position against stem friction.

Specification

YT-1000L specification (EAA Electric data sheet)
Input signal	4–20 mA DC
Impedance	250 ± 15 Ω
Supply pressure	1.4–7 kgf/cm² (20–100 psi)
Stroke	10–150 mm
Air connection	PT (NPT) 1/4
Gauge connection	PT (NPT) 1/8
Conduit	PF 1/2 (G1/2)
Explosion proof	Ex dm IIB T5 / Ex dm IIC T5 / Ex ia IIB T6
Protection	IP66
Ambient temperature	-20 to +70 °C operating; -20 to +60 °C explosion-proof
Linearity	±1 % F.S. single acting / ±2 % F.S. double acting
Hysteresis	±1 % F.S.
Sensitivity	±0.2 % F.S. single acting / ±0.5 % F.S. double acting
Repeatability	±0.5 % F.S.
Air consumption	3 LPM (supply 1.4 kgf/cm², 20 psi)
Flow capacity	80 LPM (supply 1.4 kgf/cm², 20 psi)
Material	Aluminium diecasting
Weight	2.7 kg (6.1 lb)
Acting type	Single acting (S) or double acting (D)
Lever type	10–40 / 30–70 / 60–100 / 100–150 mm
Orifice type	Ø1, Ø2 or none
Connection type	PT or NPT

Technical background

Type YT-1000L Electro-pneumatic valve positioner is used for operation of pneumatic linear valve actuators by means of electrical controller or control system with an analog output signal of DC 4 to 20 mA or split Ranges.

YT1000L Electro Pneumatic Valve Positioner- The valve positioner is divided into pneumatic valve positioner, electro-pneumatic valve positioner and intelligent valve positioner according to the structure. The electro pneumatic valve positioner is the main accessory of the control valve. The valve positioner is usually used in conjunction with the pneumatic control valve.

YT1000L valve positioner receives the output signal of the regulator and then uses its The output signal is used to control the pneumatic control valve. The electric signal is converted into electromagnetic force inside the electro valve positioner, and then the air signal is output to the toggle Control valve.

The intelligent electro valve positioner converts the current signal output from the control room into the gas signal for driving the regulating valve.

Questions buyers ask

Can the YT-1000L run a double-acting actuator?

Yes. The acting type is an ordering option — the S code is single acting, the D code double acting, and the RA/DA change is made on the same body.

What air supply does it need?

1.4–7 kgf/cm² (20–100 psi). Air consumption is 3 LPM and flow capacity 80 LPM, both quoted at 1.4 kgf/cm² / 20 psi.

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