Body form : Straight casting valve body
Nominal diameter:DN15~250 NPS 1/2″~10″
Nominal pressure :PN1.6~4.0MPa; CALSS 150~300 LB
Applicable temperature:-30~+150℃
Connection form : Flange
Flange distance : Meet lEC 60534
Leakage level: Accord with ASME B16.104
Set value bias :±8%
Actuator : Thin film actuator(self operated)
The series of self-operated fow control valve produced by TangoValve Group consist of a control valve and actuator with set flow. lt is applicable to non-corrosive liquid and plays the role of flow control in the system. lt is a new type of control valve. Compared with manual control valve, its advantage is that it can adjust automatically; Compared with the electric control valve, its advantage is that it does not need external power and belongs to the energy-saving control valve.
Self-operated fow control valve has been proved by application practice that in closed water circulation system(such as hot water heating system, airconditioning and refrigeration system), correct use of this valve can easily realize the fow distribution and dynamic balance of the system, greatly simplify the commissioning of the system, and stabilize the working state ofthe pump.
| DN Size (in) | 15 (1/2″) | 20 (3/4″) | 25 (1″) | 32 (1-1/4″) | 40 (1-1/2″) | 50 (2″) | 65 (2-1/2″) | 80 (3″) | 100 (4″) | 125 (5″) | 150 (6″) | 200 (8″) | 250 (10″) | |
| Rated Flow Coefficient Kvs | 4 | 6.3 | 8 | 16 | 20 | 32 | 50 | 80 | 125 | 160 | 280 | 320 | 400 | |
| Maximum Flow Under Effective Pressure (m³/h) | 0.02MPa | 1.5 | 2.5 | 3.5 | 5.5 | 9 | 14 | 22 | 36 | 55 | 70 | 125 | 180 | 250 |
| Maximum Flow Under Effective Pressure (m³/h) | 0.05MPa | 2.5 | 3.5 | 5.5 | 9 | 12 | 22 | 36 | 55 | 85 | 110 | 180 | – | – |
| Noise Figure (Z Value) | 0.6 | 0.6 | 0.6 | 0.55 | 0.55 | 0.5 | 0.5 | 0.45 | 0.4 | 0.35 | 0.3 | 0.2 | 0.2 | |
| Differential Pressure (MPa) | PN16 | 1.6 | 1.5 | 1.2 | 1 | |||||||||
| PN20 | 2 | |||||||||||||
| Effective Area (cm²) | 250 | 630 | ||||||||||||
| Throttle Pressure Difference (MPa) | 0.02, 0.05 | |||||||||||||
| Maximum Pressure Difference Between Upper and Lower Film Chambers (MPa) | 0.4 | 0.15 | ||||||||||||
| Body Material | WCB, 304, 316, 316L | |||||||||||||
| Spool Material | 304, 316, 316L | |||||||||||||
| Seat Material | 304, 316, 316L | |||||||||||||
| Stem Material | 304, 316, 316L | |||||||||||||
| Actuator | Membrane cover: galvanized steel sheet; diaphragm: EPDM | |||||||||||||
| Control Pipeline, Joint | Brass or steel pipe 10×1; card sleeve type connector: R1/4″ | |||||||||||||
| Control Accuracy | ±5% | |||||||||||||
| Allowable leakage | Hard Seal (Allowable Leakage) | 4 × 0.01% Valve Rated Capacity | ||||||||||||
| Soft Seal (Allowable Leakage) | DN15~50 10 bubbles/min | DN65~125 20 bubbles/min; | DN150~250 40 bubbles/min | |||||||||||
| DN Size (in) | 15 (1/2″) | 20 (3/4″) | 25 (1″) | 32 (1-1/4″) | 40 (1-1/2″) | 50 (2″) | 65 (2-1/2″) | 80 (3″) | 100 (4″) | 125 (5″) | 150 (6″) | 200 (8″) | 250 (10″) |
| L | 130 | 150 | 160 | 180 | 200 | 230 | 290 | 310 | 350 | 400 | 480 | 600 | 730 |
| H | 50 | 52.5 | 57.5 | 75 | 75 | 85.5 | 92.5 | 100 | 110 | 142.5 | 158 | 170 | 640 |
| H1 | 212 | 212 | 238 | 238 | 240 | 240 | 275 | 275 | 380 | 380 | 326 | 354 | 404 |
| H2 | – | – | – | – | – | – | – | – | – | – | 326 | 354 | 404 |
| H3 | – | – | – | – | – | – | – | – | – | – | 326 | 354 | 404 |
| H4 | Calculated according to actual configuration | ||||||||||||
| R | Calculated according to actual configuration | ||||||||||||
Note: 1.The size of the table is not the standard data of the accessories, the size of the accessory is calculated according to the actual configuration. 2.Due to the technical innovation and improvement of the product, the size may vary, please contact our company to obtain the latest information.
Self-operated flow control valve is widely used in industrial and commercial applications for automatic flow regulation without the need for external power. Key applications include:
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