Skip to main content

Advanced Diaphragm Position Control - API675 Pumps


Our Technology Advantages - Creating Real Value for Our Customers


Advanced Diaphragm Position Control™ (ADPC) - Hydra-Cell® MT Series Metering & Dosing API 675 Pump


Protecting the Diaphragm from Closed Suction Line & Suction Line Vacuum Conditions


In normal operation the Hydra-Cell® Metering & Dosing pumps diaphragms operate in hydraulic balance. If there is a restriction in the suction line of the pump the Advanced Diaphragm Position Control™ (ADPC) comes into play and protects the diaphragm from damage; obviously the discharge flow rate is effected.

If an operator runs the Hydra-Cell® pump by accident with a closed suction line isolation valve, the diaphragms are not damaged.

If there is a vacuum condition on the suction of a running pump the ADPC keeps the diaphragm safe from rupture.

Wanner first introduced this patented technology in 2003, with continuously improving the designs and patents to improve the performance, security and peace of mind for our customers. 


 Watch the Hydra-Cell® MT08 restricted inlet demonstration video


Wide Range of Suction Pressures


The Hydra-Cell® Metering and Dosing pump can operate from negative 0.5 barg to plus 34 barg, giving flexibility for many different applications and simplifying system design. For higher suction pressures please consult Wanner International.


Self-Priming and Dry Suction Lift


The Hydra-Cell® Metering and Dosing pump can run dry indefinitely, this combined with the pump's ability to pull approximately an 80% vacuum gives the pump the ability to dry lift and self prime.


Protection of Pump from Hydraulic End Cavitation


Cavitation of the hydraulic side of a hydraulically balanced diaphragm pump occurs when the diaphragm operates out of sync with the plunger pressurising the hydraulic oil. This can happen when there is not enough process suction pressure to push the diaphragm back and keep the diaphragm in sync with the drive plunger.

The ADPC of the Hydra-Cell® Metering & Dosing pumps keeps the diaphragm in sync with the hydraulic drive plunger and protects the pump from Hydraulic drive cavitation and damage.