What is Diaphragm?
A flexible membrane in a dosing pump that acts as the pumping element, separating the process chemical from the mechanical drive.
View Dosing PumpsDiaphragm Explained
The diaphragm is the primary wear part in a diaphragm dosing pump. Materials include PTFE (broadest chemical resistance), EPDM (caustic, water-based chemicals) and Viton/FKM (acids, hydrocarbons). Failure causes chemical leakage into the hydraulic chamber.
Common Applications
- Chemical dosing pumps
- Hydraulic diaphragm pumps
- Metering pumps
- Process chemical injection
Selection Factors
Correct selection depends on the process objective and site conditions. For Diaphragm, Premix usually reviews these points before recommending equipment:
- Chemical compatibility
- Temperature rating
- Pressure rating
- Cycle life requirement
Why It Matters In Plant Operation
Diaphragm affects process stability, chemical usage, equipment life and final output quality. A correctly selected solution helps reduce trial-and-error at site and supports more predictable daily operation.
Frequently Asked Questions
What is Diaphragm?
A flexible membrane in a dosing pump that acts as the pumping element, separating the process chemical from the mechanical drive.
Where is Diaphragm commonly used?
It is commonly used in Chemical dosing pumps, Hydraulic diaphragm pumps, Metering pumps, Process chemical injection.
How does Premix select Diaphragm?
Premix reviews Chemical compatibility, Temperature rating, Pressure rating, Cycle life requirement along with the plant layout and maintenance requirement.