DEPA® Air Operated Diaphragm Pumps, Cast Stainless Steel, Series M, Type DH-SA/SS

DEPA® DH Next Generation Air Operated Double Diaphragm Pump Series DH15, DH25, DH40, DH50 and DH80 are made of cast stainless steel developed for highly efficient operations within industrial and chemical applications.

Features And Benefits

  • Optimized pump design improves efficiency by up to 57% and increases flow rate by up to 10%*
  • Free-standing design with reduced number of parts and bolted design allowing for improved serviceability (maintenance-in-place)
  • Flexiport design enables on-site adjustments to the port orientation and enhanced application opportunities with a pressure of up to 8.6 bar

*according to internal testing and compared to the old DL design.

Technical Details


  • Housing Material – Cast Stainless Steel -316L
  • Center Block in Aluminium (DHxx-SA) and Cast Stainless Steel – 316L (DHxx-SS) available


  • ½” (DH15), 1” (DH25), 1 ½” (DH40), 2″ (DH50), and 3″ (DH80)


  • Paint & Varnish
  • Galvanic & Coating
  • Mining & Building
  • Marine
  • System Integrators


  • Machinery Directive 2006/42/EC
  • Eurasian Conformity

ATEX compliant in accordance with directive 2014/34 EU:

  • II 2GD Ex h IIB T6…T4 GbDb
  • II 2GD Ex h IIC T6…T4 GbDb
  • only SS: I M2 Ex h IIB T6…T4 Mb and II 1G Ex h IIB T6…T4 Ga