V130 Hard-sealed Self-operated Flow Regulating Valve
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I. Introduction:
The V130 hard-sealed self-operated flow control valve is an energy-saving control device that requires no external driving energy and automatically adjusts according to the set value by using the pressure of the controlled medium itself as the power source and the change of the medium pressure. It integrates multiple functions such as detection, control and execution into one valve, forming an independent instrument control system. This product consists of a low-flow-resistance single-seat (sleeve) valve body, pressure balance components, a pilot and an actuator. It is a new generation of valve products that meets international standards. After the controlled medium enters the valve, the pressure before the valve is input into the lower diaphragm chamber through the control pipeline, and the pressure after being throttled by the throttle valve is input into the upper diaphragm chamber. The pressure difference between them is called the effective pressure. The thrust generated by the pressure acting on the diaphragm and the reaction force of the spring balance to determine the relative position between the valve core and the valve seat, thereby determining the flow rate through the valve.
II. Features:
1. Energy-saving automatic control system without external driving energy, low equipment cost;
2. Simple structure, small maintenance workload;
3. Adjustable set point with a wide range, which is convenient for users to adjust the flow rate continuously within the set range;
4. The pilot-operated type has faster dynamic response, higher precision and larger adjustable ratio than the direct-acting type;
5. The pressure balance mechanism adopted in the valve makes the control valve sensitive in response, precise in control and allows a large pressure difference.
III. Manufacturing Standards:
Design Specification: GB/T 17213.1
Structure Length: GB/T 12221
Test and Inspection: ASME B16.104
Flange Connection: JB/T79, GB9112～9131, HG20592, SH3406, ANSI B16.5
Product Marking: GB/T 12220
Delivery Specification: JB/T 7928
IV. Working Principle:
A certain flow rate of medium causes a pressure difference when passing through the restrictor, and the pressure difference acts on the control diaphragm through the impulse tube. The built-in control spring limits the pressure difference (pressure difference of the restrictor) and flow rate. When the flow rate through the valve increases, that is, △Ps increases, as a result, P1 and Ps act on the upper and lower diaphragm chambers respectively, making the valve core move towards the valve seat, thereby changing the flow area between the valve core and the valve seat, increasing Ps. The thrust generated by the increased Ps acting on the diaphragm plus the spring reaction force and the thrust generated by P1 acting on the diaphragm balance at a new position, achieving the purpose of controlling the flow rate; conversely, the principle is the same.
V. External Dimensions:
Nominal Diameter DN | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 |
L mm | 130 | 150 | 160 | 180 | 200 | 230 | 290 | 310 | 350 | 400 | 480 | 600 | 730 |
mm | 121 | 212 | 238 | 238 | 240 | 240 | 275 | 275 | 380 | 380 | 295 | 325 | 372 |
φR mm | 263 | 380 | |||||||||||
H mm | 150 | 520 | |||||||||||
Approximate Weight (kg) | 21 | 23 | 24 | 27 | 31 | 36 | 47 | 55 | 74 | 93 | 118 | 178 | 261 |
| Industry Category | Machinery & Equipment/Valves/Control Valves |
|---|---|
| Product Category | |
| Brand: | 上海舟腾 |
| Spec: | V130 |
| Stock: | 99 |
| Manufacturer: | 上海舟腾泵阀制造有限公司 |
| Origin: | 113120 |
