DELTA M4 and MP4
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The DELTA M4 and MP4 aseptic single seat valves are designed for aseptic applications in the food, beverage, dairy, pharmaceutical and chemical industries and the valves are available in shut-off or change-over design as well as for manifold or tank outlet applications. The DELTA M4 includes a flat rubber coated teflon membrane and the DELTA MP4 includes a TFM teflon integrated membrane, shaft and cone. |
Features & benefits
- The flat membrane design ensures tight sealing and thereby microbiological impermeability to the outside environment - even after many SIP cycles, no re-tightening of the housing closures are necessary.
- The sterile barrier has a long life time - typically several hundred thousand strokes during normal operation - due to its material flexibility and low stress mechanical design.
- Efficient sterilization due to open geometry and accessability without any dead areas or air pockets.
- Unlike conventional bellow designs, the smooth surface of the membrane and the shaft provides excellent cleanability without any dead areas.
- Easy leakage detection on the housing lid.
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As the DELTA M4 and MP4 valves are based on the DELTA SW4 product line, the ball-shaped housing offers the same outstanding hygienic advantages.
For further information, please see datasheet here.

