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Products>>Actuator Accessories |
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| Electro Pneumatic Positioner |
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ALP 1000 Series |
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 1/2 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.
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Ordering Symbols and Specifications
Sample: ALP 1000 RSBn 13 means a rotary, single acting and no explosion ALPHA valve positioner with internal limit switch box. The lever type of the positioner is M6×40L and the orifice type is over 180 cm3.
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Technical Data
| ALP-1000 Positioner |
Internal Position Transmitter(optional) |
| Description |
Technical Data |
Description |
Technical Data |
| Input Signal |
4-20mADC(5-15mADC) |
Input Type |
2Wire |
| Impedance |
250±15Ω |
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 |
0~600Ohm |
| Air Connection |
G(NPT)1/4 |
Noise Range |
50m Vp.p |
| Gauge Connection |
G(NPT)1/8 |
Adjustable Range |
Zero: ±10% Span: 60~110% |
| Conduit |
G(NPT)1/2 |
Protection |
IP66 |
| Explosion Proof |
Exdm ⅡB(C)T6, Exia ⅡBT6,
Non-Explosion |
Linearity |
±1% |
| Protection |
IP66 |
Sensitivity |
±0.2% |
| Ambient Temperature |
-20℃~70℃ |
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(6Ib) 2.8kg(6.2Ib) |
Supply Voltage |
(DC 24V (10-30VDC), <=150mA) |
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Structure
Dimensions
Mounting and Installation
Packing Condition
| Model |
N.W.(kg) |
G.W.(kg) |
Meas(mm) |
| ALP-1000 LD(S)n(i) |
2.80 |
3.33 |
270×200×170 |
| ALP-1000 LD(S)m |
2.80 |
3.25 |
270×200×170 |
| ALP-1000 RD(S)n(i) |
2.60 |
4.00 |
270×200×170 |
| ALP-1000 RD(S)m |
2.75 |
4.20 |
270×200×170 |
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Introduction of ALP Position Transmitter(pt)
Electronic Position Transmitter is designed for Industry Automation, which is easily to be assembled inside of the ALP-1000 series valve positioner. Electronic Position Transmitter (specially for valve positioner) senses mechanical Position change of stem being on the valve or similar device and converses to current signal of DC 4~20mA output for computers or Industry Processing Control System. It is flame proof type attached internally.
Technical Data
| Item.Type |
Technical Data |
| Connection Type |
2Wire |
| Input Signal |
0~90° |
| Output Signal |
4~20mA DC |
| Load Resistance |
0~600 Ohm |
| Supply Voltage |
15~30V DC |
| Noise Range |
50mV pp |
| Ambient Temp |
-20℃~60℃(-4~140°F) |
| Linearity |
±1% F.S |
| Hysteresis |
±0.2 F.S |
| Sensitivity |
±0.2% F.S |
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Wiring Instruction
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Adjust Instruction
A. ZERO Adjustment
Clockwise adjustment enlarging electric current
B. SPAN Adjustment
Clockwise adjustment enlarging electric current
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Assembly and Part List
Linear Type
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| No. |
Name of Part |
| 1 |
Feedback Lever |
| 2 |
Shaft |
| 3 |
Big Brass Gear |
| 4 |
SS. Baffle |
| 5 |
Hexagonal Shaft |
| 6 |
Spring |
| 7 |
Brass Connector |
| 8 |
Small Brass Gear |
| 9 |
Potentiometer |
| 10 |
Position Transmitter PCB |
| 11 |
Aluminum Plate |
| Remark: the rest units are standard bolt and nut, the hexagonal shaft is installed on the body, and the hole would be made separately. |
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Rotary Type
| No. |
Name of Part |
| 1 |
Shaft |
| 2 |
Big Brass Gear |
| 3 |
Potentiometer |
| 4 |
Small Brass Gear |
| 5 |
Brass Connector |
| 6 |
Spring |
| 7 |
Hexagonal Shaft |
| 8 |
Brass Block Connector |
| 9 |
Position Transmitter PCB |
| 10 |
Aluminum Plate |
| Remark: the rest units are standard bolt and nut. |
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