The Hydro/ 4 API 675 is an extremely robust hydraulic diaphragm metering pump, which meets the most exacting safety requirements and is designed in accordance with API 675. This is ensured by the PTFE multi-layer diaphragm with diaphragm monitoring, the full-motion drive and automatic bleeding, for example. Its modular construction makes it extremely versatile.
For flexible metering with excellent process reliability in the medium pressure range.
The Hydro/ 4 API 675 hydraulic diaphragm metering pump (HA4a), together with the Hydro/ 2 and Hydro/ 3 pumps, represents an integrated product range with stroke lengths of 15 and/or 20 mm. The Hydro API 675 family, equipped with full-motion drive and automatic bleeding, therefore covers the capacity range of 4 to 1,506 l/h at 100 – 7 bar. They also meet the requirements of API 675.
Excellent process reliability:
PTFE multi-layer diaphragm with integrated diaphragm monitoring with condition signals sent via contact
Integrated hydraulic relief valve with ventilation function
Metering reproducibility is better than ± 1% in the 10-100% stroke volume range under defined conditions and with correct installation.
The modular construction with single and double head versions permits a wide range of applications, with the double head designs (boxer principle) being operated in push-pull mode
It is possible to combine up to 5 metering units, even with different pump capacities, in multiple pump systems
5 different gear ratios are available