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 steel, Stainless steel |
| Sleeve | NR, EPDM, NBR, CR, IIR |
| Acceptable other special requirements of the material | |
| DN | PN(Bar) | L | H | D | K | N-L |
| 40 | 1-16 | 150 | 40 | 145 | 110 | 4-18 |
| 50 | 1-16 | 180 | 60 | 160 | 125 | 4-18 |
| 65 | 1-16 | 180 | 60 | 180 | 145 | 4-18 |
| 80 | 1-16 | 220 | 75 | 195 | 160 | 4-18 |
| 100 | 1-16 | 280 | 95 | 215 | 180 | 8-18 |
| 125 | 1-10 | 345 | 120 | 245 | 210 | 8-18 |
| 150 | 1-10 | 414 | 145 | 280 | 240 | 8-23 |
| 200 | 1-6 | 550 | 182 | 335 | 295 | 8-23 |
| 250 | 1-6 | 680 | 229 | 395 | 350 | 12-23 |
| 300 | 1-4 | 820 | 278 | 440 | 400 | 12-23 |
This valve is composed of valve body, rubber tube sleeve, valve cover and other parts.
When the control medium is not input, the cavity between the rubber tube sleeve and the national body communicates with the atmosphere, and the rubber sleeve is in a state of outward tension due to fluid pressure, because there are reinforced ply layers arranged at an angle in the tube sleeve, so that the axial and radial pressures of the tube are balanced with each other, so the length and diameter of the tube sleeve will not change due to fluid pressure. When the control medium enters the cavity between the tube sleeve and the national body, the rubber tube sac is deformed and flowed under the pressure of the medium.
①the valve is installed at will on the pipeline, and there is no restriction on the flow direction of the medium. ②the maintenance cost of the valve is low.Just replace the rubber tube sleeve according to the actual use situation
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