ANSI GB Standard Cast Steel Electric Actuated Single Seated Control
Valve
Product introduction:
A control valve is a power-operated device used to control or alter
the flow of fluids like gas, oil, water, and steam. It moves after
receiving a signal from a controller, changing the flow. It is a
control device used to manage and direct the flow of fluids by
changing the size of the flow route. It offers direct control over
flow, temperature, pressure, or liquid level. In order to control
the flow of fluid, a control valve uses an actuator to adjust the
position of the valve plug or disk. These are applied to keep a
process variable as close to the target set point as is practical.
The components of this valve installation include a valve body, an
actuator, a positioner. The body consists of trim components and a
bonnet assembly. Its structure supports seating surfaces and a
valve closure part while withstanding fluid static pressure and
differential pressure, allowing fluid flow, providing
pipe-connecting ends, and all of the above. Pneumatic, hydraulic,
or electrically powered actuators are the tools that generate the
force needed to open and close the valve. To maintain a desired
set-point, positioners track and manage real actuator movement.
ZDLM series electronic type electric regulating valve products with
light body and excellent performance, it is a high-quality basic
electric control valve product. It is suitable for the production
process control system of general fluid process medium process
conditions.
This product is composed of 3810L series electronic type electric
actuator and fine and sleeve regulating valve. The actuator is an
integrated structure with built-in electronic controller module,
which can avoid the trouble of additional servo amplifier. It has
high precision and easy installation.
Product technical parameter:
| Nominal Port size (mm) | 25 | 40 | 50 | 65 | 80 | 100 | 150 | 200 | 250 | 300 |
Flow coefficient Kv | Linear | 6.9 11 |
17.6 |
27.5 | 27.5 44 | 44 69 | 69 110 | 110 176 |
275 |
440 | 440 690 | 690 1000 | 1000 1600 |
| Equal percent | 6.3 10 |
16 |
25 | 25 40 | 40 63 | 63 100 | 100 160 |
250 |
400 | 400 630 | 630 900 | 900 1400 |
| Stroke (mm) | 16 | 25 | 40 | 60 | 100 |
| Actuator Type | 381LSA-20 | 381LSB-30 | 381LSB-50 | 381LSC-65 | 381LSC-99 |
| Pressure difference permitted (MPa) | 4 | 4.2 | 4.6 | 3.7 | 2.7 | 2.2 |
| Signal | 4~20mA d.c.,1~5V d.c. |
Power supply | 24V, 220V, 380V, 440V |
| Pressure (MPa) | 1.6-10.0 |
| Working temperature | Carbon steel: -40~250 / -40~450 Stainless steel: -40~250 / -60~450 |
Flow characteristics | Linear & Linear, fixed ratio 50:1 |
Product features:
1. Balanced valve core is adopted, with small unbalanced force,
large allowable differential pressure and stable operation.
2. The valve core has a large guiding surface, which can improve
the vibration caused by eddy current and impact and reduce damage.
3. The noise is about 10dB (a) lower than that of ordinary single
seat regulating valve.
4. Simple structure and convenient disassembly and maintenance.
This series of products have good performance and operation, and
can meet the control needs of customers in a wide range of
applications.
