Almatec® AHD and AHS Series Air-Operated Double-Diaphragm Pumps have been specially designed for the safe operation of high-pressure applications up to 15 bar (218 psig).
AHD high-pressure pumps come equipped with an internal pressure booster. With a maximum drive pressure of 7 bar (100 psig), they can build up discharge pressures up to 15 bar (218 psig). AHD Series pumps are available in three sizes (AHD 15, 25 and 40) with maximum capacities of 4, 10 and 20 m³/h respectively. A typical application of these pumps includes filter press feeding.
AHS high-pressure pumps do not include an internal pressure booster; the extremely rugged construction of the pump makes it suitable for higher discharge pressures; the maximum driving and discharge pressure is 15 bar (218 psig). Available in two sizes (AHS 15 and 25) with maximum capacities of 4 and 20 m³/h respectively.
AHS Series are an ideal solution for every application under heavy load conditions, from low discharge pressures variable to high-pressure applications.
Due to the 1:1 ratio of the drive/discharge pressure, the corresponding air pressure has to be supplied from the compressor itself or an external pressure booster.
Further features of series AH at a glance:
Corrosion-proof and wear-resistant housing in solid design made of polyethylene
Double-acting principle of operation
Increased pump safety due to innovative ring-tightening structure
Automatic pressure/volume adjustment for filter press feeding
No control or safety elements required for dry running, over pressure and speed control
Safe operation over the entire range of capacity without over pressure risk
No drives, no rotating parts, no shaft seals
Dry running capabilities
Gentle displacement by compressible drive medium
Specially developed heavy-duty diaphragms for longer service life
Horizontal or vertical position for suction and discharge ports, flanges DIN or ANSI
Replaceable ball valves and ball retainers
Maintenance-free PERSWING P® air control system without dead centre