Where Innovation Flows AIR-OPERATED DOUBLE-DIAPHRAGM PUMPS e-series Air-Operated Double-Diaphragm Pumps

Competence in Pumps AD – via A-to E-Series: A Story of Setting the State of the Art Since its foundation in 1984, ALMATEC Maschinenbau GmbH has kept on defining the current state of the art of air operated diaphragm pumps via decent product characteristics. The compact and “closed” design of this pump has immediately become the ALMATEC trademark. Its massive plastic construction provided the mass an oscillating pump requires. The housing material used for wetted parts have been either abrasion-resistant polyethylene or the chemically almost universally resistant PTFE. The outer surface was completely...

at a Glance • Air-operated diaphragm pumps in solid design • Housing made of PE or PTFE, both also available in a conductive version • Interchangeability to the A-Series • Seven sizes from DN 8 to DN 80 • Max. capacities of 0.9 to 48 m3/h • Increased pump security due to innovative ring-tightening structure • Compared to the A-Series, increased capacity and decreased air consumption thanks to the optimized flow pattern, decreased noise level • ATEX conformity • Can be infinitely controlled via the air volume • No drives, no rotating parts, no shaft seals • Unattended operation with long service...

The ALMATEC E-Series is based on the functional principle of double diaphragm pumps. The basic configuration consists of two external side housing with a center housing between them. Each of the side housings contains a product chamber which is separated from the center housing by a diaphragm. The two diaphragms are interconnected by a piston rod. Directed by an air control system, they are alternately subjected to compressed air so that they move back and forth. In the first figure, the compressed air has forced the left-hand diaphragm towards the product chamber and displaced the liquid from...

Conductive Versions for Explosion-Proof Areas (ATEX Conformity) The housings and internals of the conductive versions are made of PE or PTFE filled with conductive pigment which always remains below the limits set by the FDA. The pumps are to be grounded via a connection on the center housing, thus excluding the risk of electrostatic charges. Conductive pumps of the E-Series are ATEX conform. They can consequently be used without difficulty in gas and dust atmospheres and for flammable liquids. More Special Features ALMATEC air-operated diaphragm pumps of the E-Series consist of only three solid...

Air Control System and Valves The metal-free, pneumatically pilot-operated PERSWING P® air control system ensures accurate reversal of the main piston and is characterized by low noise levels. Only two moving parts ensure that there is absolutely no dead center. It does not require maintenance, operates without any lubrication whatsoever and is made up of no more than four different parts. The complete cartridge can be replaced easily. The patented PERSWING P® is a precision control system and therefore requires clean, oil-free compressed air to ensure its optimal function. Ball valves are robust...

Optional Equipment Barrier chamber system (code BS) The ALMATEC barrier chamber system for sizes E 10 to E 50 meets high safety requirements. The individual diaphragm is replaced by two diaphragms arranged in tandem with a barrier chamber of conductive PE between them and filled with non-conductive liquid. The barrier chambers must always be filled entirely to transmit the air pressure to the medium. Therefore it is monitored by level sensors. If the diaphragm on the product side breaks, medium merely enters the barrier chamber and the non-conductive liquid flows into the medium. The change in...

Transport Cart A lot of industrial applications need not only stationary air-operated diaphragm pumps but also mobile pumping units (e. g. as emergency pump, as short-dated replacement for a pump to be repaired or for decanting between two containers). The transport cart consists of a square-pipe frame made of stainless steel and four fixable conductive castors. Room is available for product and air hoses. Possible accessories are: complete air supply with clamp connection, regulator with integrated filter and air supply for pump and damper. Technical Data Pump size length width height Nominal...

Viscosity andPump Capacity required capacity mVh l/min design capacity l/min m3/h viscosity of the medium in °E (referred to a specific gravity of 1) The capacity specified in the pump performance charts generally refers to water (1 mPa-s). The value must be reduced correspondingly when pumping media with higher viscosity. The design capacity can be read off directly from the graph and the corresponding pump size selected. The example shown here is based on a required capacity of 10 m3/h with a product viscosity of 6000 mPa-s. The dash-dotted line intersects the design capacity scale at 17 m3/h....

60 80 70 Förderhöhe Total head Förderhöhe Total head Förderhöhe Total head Pump capacity Pump capacity • Compatible liquids include sludges, acids, alkalis, solvents, slurries, emulsions, mixtures of liquids and solids, resins, powders, aqueous solutions. • These liquids may be of high or low viscosity, abrasive, thixotropic, hazardous, toxic, non- lubricating, hot, cold, coagulating, shear sensitive, pasty, solids containing, corrosive. • The fields of application include chemical industry, pharmaceuticals, cosmetics, ceramics, surface treatment, emergency services, power plants, refineries,...

Pump Size The pump size E 80 extends the E-Series range to seven sizes. With a maximum capacity of 48 m3/h the E 80 is proper for an efficient circulation of great quantities. Housing material is PE or PE conductive. The housing bolts are not tighten against a ring. The using of spring washers allows a high security and less leakage liability. Further features of the E 80 at a glance: • Air control system: in spite of high performance one piece only – Less spare parts and low noise level • Icing: big muffler for reduced risk of icing • Product connections: flange connection DN 80 – High stability...