Air-operated double diaphragm pumps from Almatec
AxFlow UK has introduced the latest generation solid designed plastic air-operated double diaphragm pumps from Almatec. The all new Unitec E-Series pump benefits from a reduction in the internal flow resistances which fluids have to overcome while passing through the pump. This has the effect of increasing output capacity and efficiency.
Introduced as a replacement for the established Unitec A-Series, this new pump enables users to obtain a higher output than the Unitec A-Series using the same air consumption or the same output with reduced air consumption. Featuring the same fluid connections and foot print as its predecessor means that the Unitec E-Series is an easy drop-in replacement for existing systems.
Applications where the Unitec E-Series can be used include: chemicals, pharmaceuticals, cosmetics, ceramics, surface treatment, water processing and waste disposal. The pumps are fully compatible with sludges, slurries, acids, alkalis, solvents, emulsions, resins and aqueous solutions.
Unitec E-Series pumps are machined from solid blocks of PE and PTFE, with conductive material versions being available to meet the directive ATEX 94/9/EG. All wetted components comply with FDA requirements. Comprising three solid housing parts, namely the centre housing and two side housings, the exterior surfaces are free of metal parts so the pumps can be used in corrosive environments. The housing parts are tightened to each other via housing bolts which are tightened against two diaphragm-sized metal rings either side of the pump housing. This assembly structure, which is fully enclosed within a plastic cover, results in a more even spread of the housing bolt force and in an increased permissible bolt torque. As a result of this new design increased pump safety is achieved and maintenance and installation operations are simplified.
AxFlow will be supplying the Unitec E-Series in seven sizes with nominal flow rates ranging from 0.9m³/h to 48m³/h and discharge pressures up to 7 bar. The pumps can be equipped with a variety of options to customise units for specific applications. Options include a barrier chamber system, stroke counting, diaphragm monitoring, flange connections or drainage. A pulsation damper with ring clamping to achieve a metal-free external connection and optional flange connections is also offered.
