Electric pinch valve uses an electric actuator to control the opening and closing of a flexible elastomer sleeve or tube with configurable actuation which can be configured with most multi-turn electric actuators on the market, providing flexibility in control options.
Body, sleeve, Stem, pinch rod, side guide rod, Hand wheel etc.
when rotate the handle clockwise, valve stem drive the splint and compress sleeving to close valve, conversely, open the valve. So splint under the pull rod upper and downer to complete the work, because of the rubber sleeve can not sustain heavy strength, so when close it, operator feel a little collide is be ok, forbid to use other tools;
This valve can install on the pipe for free, no fluent direction limit, long term usage, if there is abrasion or leaks, just to remove the valve to replace a new valve core, the valve can use for a long time for economical and practical.
A.Could install it in any part of pipe and don’t limit of the medium flow direction.
B.Low maintenance cost, don’t need change the seat of valve, sealing material etc, only need change the rubber of sleeving.
A.Pinch valves can be used for On/Off, as well as throttling services
B.Pinch valves are ideal for on/off services because of their straight through design that allows for uninhibited flow
C.Straight through designs also have very little pressure drop between the inlet and outlet.
D.The effective throttling range of a pinch valve is usually between 10% and 95% of the rated flow capacity
E.Low maintenance
F.Low weight and easy operation
G.Easy changing the rubber sleeving and don’t need stock other parts except the rubber sleeving.
| Rubber quality | Application examples | Temperature range | Typical media |
| EPDM | Chemical applications: Applicable to 75% of all industrial chemical applications. | -40℃ – ＋110℃ | Concentrated and oxidiziing chemicals. |
| NR | High wear applications. | -40℃ – ＋80℃ | Abrasive materials, diluted acids, alkali & chemicals. |
| NBR | Applications involving oils, fats and hydrocarbon. | -30℃ – ＋100℃ | Oil, fats, fuels hydrocarbon, lubricants. |
| CR | Special-purpse chemical application: Resilient to ozone and averse weather | -40℃ – ＋100℃ | Chemicals, acids, several solvents, aliphatic oils, fats, lubricants |
| IIR | Special-purpse chemical application: Impermeable to gas | -40℃ – ＋100℃ | Concentrated and acidic chemicals, vegetable oil. |
| Name | Material |
| Body | Aluminium alloy, Cast iron, Cast steel, Stainless steel |
| Sleeve | NR, EPDM, NBR, CR, IIR |
| Stem | Carbon steel, Stainless steel, Alloy steel |
| Pinch rod | Ductile iron |
| Side guide rod | Carbon steel, Stainless steel, |
| Actuator | 380V or 220V |
| Acceptable other special requirements of the material | |
| DN | PN(Bar) | L | L1 | L0 | D | D1 | Z-ɸ |
| 50 | 1-16 | 210 | 160 | 60 | 160 | 125 | 4-18 |
| 65 | 1-16 | 250 | 199 | 74 | 180 | 145 | 4-18 |
| 80 | 1-16 | 300 | 222 | 88 | 195 | 160 | 4-18 |
| 100 | 1-16 | 350 | 250 | 106 | 215 | 180 | 8-18 |
| 125 | 1-10 | 430 | 318 | 134 | 245 | 210 | 8-18 |
| 150 | 1-10 | 500 | 350 | 158 | 280 | 240 | 8-23 |
| 200 | 1-6 | 645 | 446 | 206 | 335 | 295 | 8-23 |
| 250 | 1-6 | 800 | 516 | 256 | 395 | 350 | 12-23 |
| 300 | 1-4 | 940 | 562 | 304 | 440 | 400 | 12-23 |
| 350 | 1-4 | 840 | 500 | 460 | 16-23 | ||
| 400 | 1-4 | 915 | 580 | 525 | 16-25 |
Durable Construction: Electric pinch valves are typically constructed with robust materials such as stainless steel for the body, ensuring resistance to corrosion and wear in harsh environments.
Elastomeric Sleeves: The internal sleeves are made from high-quality elastomers (e.g., rubber, EPDM, NBR) that provide excellent resistance to abrasion and chemicals, making them suitable for various media types.
Electric Actuation: The valve operates using an electric actuator that controls the opening and closing of the elastomer sleeve. When the actuator is energized, it pinches the sleeve to stop the flow, and when de-energized, the sleeve returns to its original shape, allowing unrestricted flow.
Precision Control: This mechanism allows for accurate flow regulation and throttling, making electric pinch valves ideal for applications requiring precise control over fluid dynamics.
Operators should avoid using excessive force when closing the valve, as the rubber sleeve has a limited bearing capacity. A slight resistance is normal; however, overexertion can lead to damage.
It is essential to periodically check the valve for wear on the rubber sleeve and other components to ensure optimal performance and prevent leaks.
Flexible Installation: Electric pinch valves can be installed in various orientations within the pipeline, with no restrictions on flow direction, simplifying integration into existing systems.
Low Maintenance Requirements: The design minimizes maintenance needs, as the primary component requiring replacement is the elastomer sleeve. This straightforward maintenance reduces downtime and operational costs.
Versatile Applications: Electric pinch valves are suitable for a wide range of applications, including handling slurries, abrasive materials, and corrosive fluids in industries such as chemicals, pharmaceuticals, food processing, and wastewater treatment.
Consistent Operation: With the ability to handle high cycle rates and provide reliable sealing performance, electric pinch valves ensure efficient flow control and longevity, making them a dependable choice for demanding industrial environments.
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