| Sign In | Join Free | My carsrow.com |
|
| Sign In | Join Free | My carsrow.com |
|
| Categories | Single Acting Positioner |
|---|---|
| Place of Origin: | China |
| Travel characteristics: | Straight stroke/10~150mm |
| Type: | Flameproof |
| Fault state: | Fail lock |
| Installation method: | All-in-one |
| Brand Name: | TORLEO |
| Series: | TOP-5879F1 |
| Model Number: | TOP-5879F1-C41GY-LSB |
| Mode of action: | Single acting |
| Delivery Time: | 5-8 work days |
| Explosion-proof grade: | Ex db IIC T6 Gb |
| Material: | Die-cast aluminum |
| Certification: | SIL3 |
| Company Info. |
| WUHAN TORLEO INTELLIGENT CO.,LTD |
| Verified Supplier |
| View Contact Details |
| Product List |
Engineered for straight-stroke (10–150 mm) spring-return control valves, the TORLEO C41GY-LSB is a flameproof (Ex db IIC T6 Gb) single-acting smart valve positioner. A single-acting unit drives one controlled output port (OUT1) and relies on the actuator’s return spring for the reverse stroke, so the design targets the real problems of that topology — uneven spring stiffness, mechanical hysteresis and packing stiction. PID control, adjustable exhaust damping and one-touch smart calibration hold ±0.3% F.S. accuracy and stop the plug from fluttering under high differential pressure. It is rated SIL3, and on loss of air or signal the spring moves the valve to its fail-lock position.
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 |
| Stroke / Travel | 10~150mm |
| Input resistance | 490 Ω (max.) / 20 mA 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 | Ex db IIC T6 Gb |
| 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) |
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.
single-seat / double-seat globe control valves, cage-guided control valves, diaphragm control valves, gate valves and angle control valves with linear spring-return (single-acting) pneumatic actuators
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 one-touch smart calibration;
PID compound control algorithm can achieve 0.1-0.3% control accuracy.
Sub-category: Linear Single-Acting Linear . With a linear travel of Straight stroke/10~150mm it couples directly to linear spring-return (single-acting) pneumatic actuators on single-seat / double-seat globe control valves, cage-guided control valves, diaphragm control valves, gate valves and angle control valves. Rotary (0–120°) valves such as ball and butterfly valves require the corresponding Rotary series.
Real-world field experience — Serving process-industry clients worldwide, our engineers found that single-acting (spring-return) loops fail in three characteristic ways: uneven return-spring stiffness that shifts the valve’s zero, mechanical hysteresis and packing stiction that leave a dead-band, and micro-fluttering of the plug/disc under high differential pressure when the exhaust is too free. TORLEO solves these by design, not by brochure: the wear-free nozzle-baffle + symmetrical-diaphragm mechanism resists dust, moisture and oil; the microprocessor runs a PID algorithm with 0.1–0.3% accuracy and compensates stiction-induced dead-band; adjustable exhaust damping stops the valve from fluttering; and one-touch smart calibration learns the spring’s true characteristics so positioning stays repeatable over its whole life.
All TORLEO units are manufactured under a certified quality management system. Trust anchors: Functional safety — IEC 61508 SIL 3; Flameproof / explosion protection — Ex db IIC T6 Gb; Ingress protection — IP66. Representative certificates are shown below.
IEC 61508 SIL 3Ex db IIC T6 GbIP66Single-Acting
|
