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LUTZ (U.K.) LTD. | Great Britain
Family business since 1954
+44 24 77 10 33 06

Double diaphragm pump DMP model 2" plastic explosion-proof

for plant feeders and large-scale industry

Preis anfragen

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  • 5251-110
  • Integrated silencer up to model size DMP 1"
Description: The double diaphragm pump 2" PVDF explosion-proof is suitable for large-scale...more
Product information "Double diaphragm pump DMP model 2" plastic explosion-proof"

Material: Polyvinylidene fluoride carbon fiber reinforced (PVDF)
Diaphragm / valve ball / seal material: TPV (EPDM-PP) + TFM (PTFE) / PTFE / PTFE
Center block material: Polypropylene carbon fiber reinforced (PP)

Material explanation: EPDM = ethylene propylene diene rubber,  FPM = fluorine rubber, 
NBR = acrylonitrile butadiene rubber, PP = polypropylene, PTFE = polytetrafluoroethylene, 
TPC-ET+ TFM (PTFE) = thermoplastic polyester elastomer + modified polytetrafluoroethylene, 
TPV (EPDM-PP) = EPDM/PP compound


The double diaphragm pump 2" PVDF explosion-proof is suitable for large-scale industry and system feeding as well as for large flow rates and higher viscosities.

  • typical applications: Filter press, tank cleaning system, pigment dyes and resins
  • integrated silencer up to model size DMP 1"
  • highly resistant TFM (PTFE) diaphragms (modified PTFE)

Features & benefits

  • high hydraulic performance
  • maintenance-optimized design and easy installation
  • self-priming (even when dry)
  • absolutely oil-free
  • blockage-free operation
  • Pumps explosion-proof in accordance with ATEX directive (explosion protection)
Technical data
Double diaphragm pumps (material): non - metallic
Housing (material): Polyvinylidene fluoride carbon fibre reinforced (PVDF)
Centre block (material): Polypropylene carbon fibre reinforced (PP)
Diaphragms (material): TPV (EPDM-PP) + TFM (PTFE) (EPDM/PP-Compound + Modifiziertes Polytetrafluorethylen)
Valve ball (material): PTFE (Polytetrafluorethylen)
Seals (material): PTFE (polyvinylidene fluoride)
Valve seat (material): PVDF (polyvinylidene fluoride)
Delivery rate (up to max. l/min)*: 715
Delivery head (up to max. mWS)*: 80
Solids (max. ø mm): 9
Fluid temperature (max °C): 90
Viscosity (up to mPas): 30000
Suction head dry (up to max. mwc*): 4,5
Air pressure (max. bar): 8
Air pressure start-up (min. bar): 2
Sound pressure level dB(A): 80
Displacement per chamber (in cm³): 1910
Displacement per chamber (in cm³): 3820
Size: 2"
Air inlet (inch) inside: 3/4"
Pressure joint (inch) inside: 2"
Suction joint (inch) inside: 2"
Explosion protection: Yes
Connection: Gewinde

* The maximum flow rate is a value determined by means of a test bench and measured with water at a medium temperature of approx. 20 °C. The measurement is carried out at the pressure joint of the pump, without hose, nozzle or flow meter. The achievable flow rate in use is lower and depends on the individual application, the liquid properties and the configuration of the pump. The max. delivery head also depends on the pump design, motor and fluid. The viscosity values are determined with oil.

** Test assembly: Medium water / diesel, flow in preferred direction, settling section 0.2 m upstream and downstream of flow meter

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