Smart valve positioner, flameproof explosion-proof Exd, straight stroke, single acting, fail lock
We came up with 10 Reasons to Install a Valve Positioner so you can discover ways that a positioner could improve your control process. Here is a quick summary of reasons to use a valve positioner on your rotary or linear control valves:
Ability to have fine control over a precise process.
Increase the speed of response to change in process, allowing for faster loading and venting.
Allow for split ranging (one controller for two valves).
Overcome seating friction in rotary valves.
Allow for increased usage of 4 – 20mA electronic signal.
Minimize valve stem packing friction effects and the resulting hysteresis. This is particularly important for high temperature packing materials like graphite.
Negate flow-induced reactions to higher pressure drops and compensates for internal force imbalances.
Allow the use of characteristic cams in rotary valves.
Performance indicators
| Item | Indicator |
| Input signal | 4~20mA or 4~20mA+HART, split-range control can be set |
| Sensor type | N/A |
| Gas source | pressure 1.4~6bar; no oil, no moisture, no dust and dirt |
| Journey | 10~150mm |
| Input resistance | 490☊(max.)/20mA(DC) |
| Electrical interface | M20*1.5 or customized |
| Pneumatic interface | NPT1/4 |
| Repeatability | ±0.3%F.S. |
| Linear | ±0.3%F.S. |
| Hysteresis | ±0.3%F.S |
| Sensitivity | ±0.2%F.S |
| Output characteristics | linear, quick opening (25:1, 50:1), equal percentage (1:25, 1:50) |
| Protection class | IP66 |
| Explosion-proof grade | ExdIICT6 |
| Security level | SIL3 |
| Fault state | fail lock Off power, off signal, the valve maintains position; add air lock valve to realize three-break position maintenance |
| Operating temperature | -30℃~85℃ |
| Material | die-cast aluminum |
| Gross weight | 3Kg |
| Dimensions | 162L*152W*182H (mm) |
Product application field
TORLEO brand TOP-5879F1 series smart valve positioner are used in conjunction with pneumatic control valves, and are widely used in metallurgy, power generation, paper-making, environmental protection and other industries where process control is required.
Typical valve application
Diaphragm control valve, single-acting ball valve, single-acting butterfly valve
Technical features of the product
-
Nozzle baffle + symmetrical membrane valve structure, strong ability to resist dust, moisture and oil;
-
Built-in keyboard and large LCD screen, the positioner can be debugged without a handheld operator;
-
HART communication, modular design, convenient for users to choose and use;
-
Valve position output, modular design, convenient for users to choose and use;
-
Configure linear, quick opening, equal percentage and user-defined flow characteristics;
-
One-key auto-tuning operation to meet the needs of users for quick installation and fool-like debugging;
-
PID compound control algorithm can achieve 0.1-0.3% control accuracy.
Selection guide for TOP-5879F1 C series smart valve positioner
Product Tags:
|
|
Digital Explosion Proof Positioner With Feedback Single Acting Fail Lock C41GY-LSB Images
|
