Rubber Diaphragm Seals For Diaphragm Pump
Introduction:
Diaphragm pump is divided into pneumatic diaphragm pump and electric diaphragm pump, pneumatic diaphragm pump as the name implies is the kind of using compressed air as the power, to form a diaphragm reciprocating deformation volume change of positive displacement pump. Its operating principle and electric diaphragm pump is similar to the plunger pump, because the characteristics of the working principle of the diaphragm pump, in the process of diaphragm pump use, the diaphragm becomes an important accessory, but also because the positive displacement is particularly important.
Material:
EPDM: the best choice for extreme cryogenic pumps, as low as -51 degrees, can also be used to pump dilute acid or low corrosive liquids.
Polyperfluoroethylene propylene: high price, strong corrosion resistance, flexibility is better than PTFE, suitable for low temperature corrosive media.
Characteristics:
Oil resistance, good elasticity, anti aging, strong sealing, tear resistance, acid and alkali resistance, corrosion resistance, high and low temperature resistance, long service life, wear resistance.
Replacement diaphragms from GEMÜ
For aseptic and industrial processes
Diaphragms are wearing parts. They need to be regularly inspected and replaced otherwise malfunctions can occur, possibly resulting in hazardous situations.
Specifying the maintenance cycles
The maintenance intervals for inspecting and replacing diaphragms are application-dependent. In order to determine a suitable maintenance interval, the maintenance history and the stresses placed on the parts due to frequent sterilisation, cleaning processes or frequent cycle duties must be taken into account. The type of media must also be considered; the maintenance interval is considerably shorter for viscous or abrasive working media in comparison to inert liquids, for example.
Inventory
If it has not yet been possible to conclusively document the maintenance interval, or if the diaphragm is only to be replaced in the event of leakage, we recommend creating a stockpile in order to be able to react promptly. However, the inventory should take into consideration that elastomer components have a maximum recommended storage and operating time. This is between one and six years for GEMÜ diaphragms – when they are stored correctly.
Procurement cycles
In our experience, it is worth setting up a small storage area for small, frequently used parts and establishing a rolling order system at the same time in installations with a relatively large number of diaphragm valves. In the latter case, you will automatically receive a subsequent delivery or a further delivery of diaphragms from us in a time period defined by you.
Diaphragm dimensions
* Diaphragm size
The thread of the diaphragm pin "W" corresponds to Whitworth standard.
Our service:
1. Packaging is neutral packing or customized packing.
2. We will reply you within 24 hours.
3. We will also provide you with good after-sales service.
4. OEM or ODM orders are welcomed.
5. Trial orders are acceptable.
6. High quality and factory price.
7. 100% ensured the quality.
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