YTC Type Valve Positioner

YT1000R+410A L/S Electro Pneumatic Valve Positioner

Rotary positioner + Model 410A explosion-proof limit switch

YT-1000R with the Model 410A switch box, the explosion-protected option in this pairing. The positioner itself is there for three documented reasons: control quality and speed, extra output force, and electro-pneumatic conversion of the 4–20 mA computer output.

410A switch box rated Exd II BT6, 2×NPT3/4 entries
Positioner improves regulating quality and stem movement speed
Raises output force for high-Δp, high-pressure, high- and low-temperature and large-bore valves
Converts the 4–20 mA computer output into a pneumatic signal
8 terminals, on-yellow / off-red indicator, -25 to +85 °C

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Typical duty: Hazardous-area quarter-turn valves that also need discrete position signals.

Specification

YT-1000R 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	0–90°
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	2.8 kg (6.2 lb)
Lever type	M6×40L / M6×63L / M8×40L / M8×63L / NAMUR
Option 1	None (standard) or dome cover
Option 2	None / +PTM internal / +PTM external / +L/S internal / +L/S external / +PTM+L/S internal

Technical background

Type YT-1000R Electro-pneumatic valve positioner is used for operation of pneumatic rotary valve actuators by means of electrical controller or control system with an analog output signal of DC 4 to 20 mA or split Ranges. YT1000R Electro Pneumatic Valve Positioner- The main function of YT1000 EP Valve Positioner: 1.

Valve Positioner is used to improve the quality and movement speed of the regulating valve, mainly due to the guarantee of an amplifier and sufficient air source pressure. 2. Valve Positioner is used to increase the output force, mainly used for high pressure difference, high pressure medium, high temperature, low temperature and large diameter valve occasions. 3.

Valve Positioner is used for electricity-pneumatic conversion. At present, most regulating valves are matched with computers, and the computer outputs mostly 4-20mA current signals. Electric-pneumatic valve positioners can be used to meet the requirements.

Questions buyers ask

Why is the positioner needed for electro-pneumatic conversion?

Most regulating valves are now driven from computers that output 4–20 mA; the electro-pneumatic positioner is what turns that into the air signal the actuator needs.

Which entry thread does the 410A use?

2×NPT3/4.

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