Flexible member pumps function similarly to vane pumps, except it flexes rather than the vane sliding. These types of pumps can only be used in relatively low-pressure conditions (60pi and under) and slow flows (150 gpm and under). Despite these limitations, they are self-priming, economical, and can handle many fluid types without damage – even when solids are present. Flexible membrane pumps are used as ballast in the marine industry and where strict sanitary conditions are needed in the cosmetic, pharmaceutical, and food industries.
Most Common Seal Type Used:
- Single spring bellow seal