A seal-less, self-priming air driven diaphragm pump available in metal, plastic and stainless steel constructions — designed for reliable transfer of corrosive, abrasive and high-viscosity fluids in electroplating and industrial processes.
No shaft seal and no mechanical seal — the medium is completely separated from the moving parts, eliminating leakage and reducing maintenance.
Self-priming without external assistance and able to run dry without damage — ideal for intermittent and unattended transfer duties.
Aluminum, cast iron, PP, POM, PVDF and SS304/316/316L bodies with multiple diaphragm, valve ball and valve seat options to match almost any chemical.
Flow rate is easily regulated by adjusting the air supply pressure. Low shear pumping handles shear-sensitive, viscous and particle-laden fluids.
| Model | Max. Particle Diameter [mm] | Suction & Discharge Port [in] | Compressed Air Inlet [in] | Max. Flow Rate [l/min] | Max. Head [m] | Max. Air Supply Pressure [bar] |
|---|---|---|---|---|---|---|
| MK06 | 1.6 | 1/4 | 1/4 | 27 | 70 | 7 |
| MK10 | 1.6 | 3/8 | 3/8 | 27 | 70 | 7 |
| MK15 | 2.5 | 1/2 | 1/2 | 57 | 84 | 8.4 |
| MK20 | 2.5 | 3/4 | 1/2 | 57 | 84 | 8.4 |
| MK25 | 4 | 1 | 1/2 | 157 | 84 | 8.4 |
| MK40 | 5 | 1.5 | 1/2 | 358 | 84 | 8.4 |
| MK50 | 6 | 2 | 1/2 | 587 | 84 | 8.4 |
| MK80 | 9.4 | 3 | 3/4 | 1060 | 84 | 8.4 |
| Component | Metal Type (Aluminum / Cast Iron) | Plastic Type (PP/POM/PVDF) | Stainless Steel Type (304/316/316L) |
|---|---|---|---|
| Pump Body | Aluminum Alloy, Cast Iron | Polypropylene, Polyacetal, PVDF | SS304, SS316, SS316L |
| Diaphragm | Santoprene, Hytrel, Viton, PTFE, EPDM, Buna-N | Santoprene, Hytrel, Viton, PTFE, EPDM, Buna-N | Santoprene, Hytrel, Viton, PTFE, EPDM, Buna-N |
| Valve Ball | Santoprene, Hytrel, Viton, PTFE, SS304, SS316, Ceramic | PTFE, Stainless Steel, Santoprene, Hytrel, Viton, Ceramic | PTFE, Stainless Steel, Santoprene, Hytrel, Viton, Ceramic |
| Valve Seat | Santoprene, Hytrel, Viton, PTFE, SS304, SS316, Polypropylene | PTFE, Santoprene, Hytrel, Viton, Polypropylene | PTFE, Stainless Steel, Santoprene, Hytrel, Viton |
| Center Section | Aluminum Alloy, Polypropylene | Aluminum Alloy, Polypropylene, Stainless Steel | Aluminum Alloy, Polypropylene, Stainless Steel |
| Material Category | Material Name | Max. Temperature | Min. Temperature |
|---|---|---|---|
| Pump Body Material | Polypropylene (PP) | 150 ℉ (65.5℃) | 40 ℉ (4.4℃) |
| Polyvinylidene Fluoride (PVDF) | 200 ℉ (93.3℃) | 40 ℉ (4.4℃) | |
| Polyacetal (POM) | 150 ℉ (65.5℃) | 40 ℉ (4.4℃) | |
| Diaphragm Material | PTFE (Teflon) | 350 ℉ (176.6℃) | 40 ℉ (4.4℃) |
| Viton | 350 ℉ (176.6℃) | -40 ℉ (-4.4℃) | |
| Santoprene | 220 ℉ (104.4℃) | -20 ℉ (-28.9℃) | |
| Hytrel | 220 ℉ (104.4℃) | -20 ℉ (-28.9℃) | |
| EPDM | 250 ℉ (121.6℃) | -40 ℉ (-4.4℃) | |
| Buna-N | 212 ℉ (100℃) | -40 ℉ (-4.4℃) | |
| GE (Geolast) | 220 ℉ (104.4℃) | -20 ℉ (-28.9℃) |
Air driven diaphragm pumps engineered for tough industrial fluid handling
No shaft seal or mechanical seal — safe transfer of corrosive and hazardous liquids
Draws liquid without priming and can be installed above the liquid level
Can operate dry without damage — no risk of burnout or seizure
Metal, plastic and stainless steel options with 6 diaphragm materials available
Simple structure with few wearing parts — fast and economical on-site servicing
