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Almatec AHD

Plastic Air Operated Double-Diaphragm Pumps for High-Pressure Applications

Almatec AHD Series have been specially designed for the safe operation of high-pressure applications up to 15 bar (218 psig) and include 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). A typical application of these pumps includes filter press feeding

The solid design of the AHD and ring tightening structure give maximum pump safety. Corrosion proof and wear resistant housing allows the pump to comfortably operate in hazardous environments. No drives, rotating parts or shaft seals minimise maintenance and operation costs. AHD includes specially developed heavy-duty diaphragms for longer service life.

Dry running, self-priming and easy start up capabilities.

073 Almatec AHD
073 AHD expanded view
073 Almatec AHD
073 AHD expanded view

Performance Data

  • Port size (inches): ½” to 1½” flanged
  • Max particle size (mm): 4 – 8
  • Max temperature (°C): 70
  • Max capacity (m3/h): 4 – 20
  • Suction head wet (mWC): 9.5
  • Suction head dry (EPDM/NBR ball valves)(mWC): 2 – 3.5
  • Suction head dry (PTFE ball valves)(mWC): 1.5 – 2

Features and Benefits

  • Reliable ALMATEC construction in solid design
  • Maintenance and lubrication-free air system PERSWING P® reduces operating costs
  • High pump safety due to innovative ring-tightening structure
  • Specially developed heavy-duty diaphragms for long service life
  • Self-priming, dry run capability and solids handling
  • No drives, no rotating parts, no shaft seals – no internal wear
  • Gentle displacement
  • Easy to start up, flow rate easily controlled via the air volume and pressure
  • Automatic pressure/volume adjustment for filter press feeding
  • Horizontal or vertical position for suction and discharge ports, flanges DIN or ANSI
  • Models and Max Driving Pressure
  • Materials
  • Performance Charts
  • Optional Extras
  • AHD15 1/2” – 7 bar
  • AHD25 1” – 7 bar
  • AHD40 1 1/2” – 7 bar
  • Housing: PE UHMW abrasion resistant
  • Diaphragms: EPDM, PTFE/EPDM compound, NBR
  • Ball valves: EPDM, PTFE, NBR
  • Stroke counting
  • Diaphragm monitoring
  • ANSI flanges

Enquire about this product

Send a message to the Chem Resist sales team for more information.

Alternatively, contact us on +44 1924 499466 or [email protected].

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