Design and Features
Armed with the design ideas of block structure and Multi-port type, we produced the ALP-1000 series E-P valve positioner which has two types, one is Linear and another is rotary. The Linear one is used for linear operation of pneumatic linear valve actuator. The rotary one is used for rotary pneumatic actuator. They control valve stroke accurately, through pressure air, according to input signal of 4-20mA being input from electrical controller control system.

In addition, the internal position transmitter and/or limit switches are easily to be assembled inside of the positioner in order to senses mechanical position change of stem being on the valve or similar device and converses to current signal of DC 4~20mA outputs for computers or Industry Processing Control System. It is flame proof type attached internally.

The ALP-1000 series E-P valve positioner is provided with following features:
1, There is no resonance in the range of 5~200Hz.
2, Performing ½ Split Control without any other substitutes.
3, Easy to adjust zero and span.
4, Easy to convert from Reverse Action to Direct Action or vice versa.
5, Easy to convert from Spring Return to Double Action actuator or vice versa.
6, Easy Feedback Connection.
7, Fast and accurate response.
8, Low air consumption.
9, Easy to protect from hunting effect by using output orifice in small size of actuator.
10, Easy to install air tubing connection in any direction.

Ordering Symbols and Specifications

Sample:
ALP1000RSBn13 means a rotary, single acting and no explosion K-Torc valve positioner with internal limit switch box. The lever type of the positioner is M6x40L and the orifice type is over 180cm³.

Technical Data

ALP-1000 Positioner Internal Position Transmitter(optional) Description Technical Data Description Technical Data Input signal 4-20mADC(5-15 mA DC) Input type 2Wire Impedance 25015Ω Input Signal 0˚-90˚  Supply pressure 1.4~7kgf/cm2(20~ 100psi) Output Signal 4-20mA DC Stroke Rotary: 0-90˚/Linear: 10-150mm Load Resistance 0~600 Ohm Air connection G(NPT)1/4 Noise Range 50mVp.p Gauge connection G(NPT)1/8 Adjustable Range Zero : 10% Span : 60~110% Conduit G(NPT)1/2 Protection IP66 Explosion Proof ExdmII B(C)T6, ExiaII BT6, Non-Explosion Linearity 1% Protection IP66 Sensitivity 0.2% Ambient temperature -20˚C~70˚C Hysteresis 0.002 Linearity 1%F.S. 2%F.S. Supply Voltage 15~30V DC Hysteresis 1%F.S. Explosion Proof Non-Explosion Sensitivity 0.2%F.S. 0.5%F.S. Internal Mechanical Switches(optional) Repeatability 0.5% Description Technical Data Air consumption 3LPM(Sup=1.4kgf/cm2,20psi) Supply Voltage ZIPPY, 5A125-250VAC Flow capacity 80LPM(Sup=1.4kgf/cm2,20psi) Internal Proximity Sensors(optional) Material Aluminum alloy Description Technical Data weight 2.7kg(6 Ib) 2.8kg(6.2 Ib) Supply Voltage (DC 24V (10-30VDC), <=150mA)

STRUCTURE

Dimensions

Packing Conditions