MDH(L) Stainless Steel Vortex Magnetic Drive Pump
Product Overview
The MDH(L) stainless steel vortex magnetic drive pump is built for high- and low-temperature circulation duties where process fluid leakage is not acceptable. It combines a vortex hydraulic end, which generates high head at low flow (rated heads 30–120 m, capacities 0.5–50 m³/h), with a seal-less magnetic coupling rated for media from −196 °C to +400 °C and system pressures up to 4.0 MPa. Converting the dynamic shaft seal into a static containment shell removes the primary leakage and maintenance point of conventional pumps, and the gas–liquid mixed-phase capability allows the pump to move aerated, gas-saturated, and nanobubble media without losing prime. In semiconductor manufacturing, the MDH(L) serves precision temperature control and chemical circulation loops across the process chain: wafer polishing and cleaning, chemical mechanical planarization (CMP), thin-film deposition, etching, and packaging and test stages. The 316 stainless steel wetted path, zero-leakage static sealing, and stable low-flow hydraulics match the purity and repeatability requirements of fab auxiliary systems. In AI and high-density computing infrastructure, the pump circulates water-glycol mixtures and dielectric coolants in direct-to-chip liquid cooling loops, coolant distribution units (CDUs), and thermal test systems, where continuous-duty reliability and precise low-flow pressure control determine rack-level thermal stability.
Product Features
- Proprietary non-wear impeller technology
- Unique gas–liquid mixed-phase conveying capability, including dissolved-gas and nanobubble media
- Enhanced bearing support stability technology
- Ultra-high-temperature magnetic drive design, −196 °C to +400 °C media window
- Medium-temperature precision investment casting with multi-stage surface treatment
- Contamination-free 316 stainless steel fluid path with static sealing for semiconductor process media
- Stable low-flow, high-head hydraulics for precision TCU, chiller, and CMP temperature control loops
- Rated for water-glycol and dielectric coolants used in AI data center direct-to-chip liquid cooling
- Compact, skid-mountable construction with a 4.0 MPa pressure rating
Technical Specifications
| Model | Diameter | Motor | Performance Parameter | Pump Weight (kg) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Inlet | Outlet | Power (kW) | Power (Hp) | Voltage (V) | Frequency (Hz) | Speed (r/min) | Max / Rated Head (m) | Max Capacity (m³/h) | ||
| MDH-05 | DN20 | DN15 | 0.37 | 0.5 | 3Ø-380 | 50 | 2760 | 50 / 30 | 0.8 | 11 |
| MDH-07 | DN20 | DN15 | 0.5 | 0.7 | 3Ø-380 | 50 | 2760 | 80 / 50 | 0.5 | 12 |
| MDH-10 | DN25 | DN20 | 0.75 | 1 | 3Ø-380 | 50 | 2760 | 55 / 35 | 0.9 | 16 |
| MDH-15 | DN25 | DN20 | 1.1 | 1.5 | 3Ø-380 | 50 | 2760 | 80 / 55 | 2.4 | 18.5 |
| MDH-20 | DN40 | DN32 | 1.5 | 2 | 3Ø-380 | 50 | 2760 | 90 / 60 | 2.8 | 26 |
| MDH-30 | DN40 | DN32 | 2.2 | 3 | 3Ø-380 | 50 | 2760 | 100 / 70 | 1.7 | 29 |
| MDH-40 | DN40 | DN32 | 3 | 4 | 3Ø-380 | 50 | 2900 | 120 / 80 | 3.7 | 37 |
| MDH-50 | DN50 | DN40 | 4 | 5.5 | 3Ø-380 | 50 | 2900 | 62 / 40 | 13 | 67 |
| MDH-75 | DN50 | DN40 | 5.5 | 7.5 | 3Ø-380 | 50 | 2900 | 65 / 50 | 11 | 69 |
| MDH-75Z | DN50 | DN40 | 5.5 | 7.5 | 3Ø-380 | 50 | 1470 | 74 / 50 | 9.8 | 78 |
| MDH-100 | DN65 | DN50 | 7.5 | 10 | 3Ø-380 | 50 | 1470 | 80 / 50 | 24.9 | 193 |
| MDH-150 | DN65 | DN50 | 11 | 11 | 3Ø-380 | 50 | 1470 | 100 / 60 | 24 | 229 |
| MDH-200 | DN80 | DN65 | 15 | 20 | 3Ø-380 | 50 | 1470 | 80 / 38 | 44 | 332 |
| MDH-250 | DN80 | DN65 | 18.5 | 25 | 3Ø-380 | 50 | 1470 | 100 / 40 | 60 | 352 |
| MDH-300 | DN80 | DN65 | 22 | 30 | 3Ø-380 | 50 | 1470 | 120 / 50 | 69.8 | 361 |
*The above characteristic testing is based on water transfer at normal speed under 20°C. The performance parameter error is approximately ±10%. Pump performance varies depending on the proportion and density of the liquid medium.
Pump Structure
Exploded view of MDH(L) stainless steel vortex magnetic drive pump showing impeller, inner and outer magnets, bearings, drive shaft, coupling, and motor structure
Performance Curve
Exploded view of MDH(L) stainless steel vortex magnetic drive pump showing impeller, inner and outer magnets, bearings, drive shaft, coupling, and motor structure
Working Condition
| Medium Temperature | Medium Density | Ambient Temperature | Maximum Elevation | Max Withstand Pressure |
|---|---|---|---|---|
| −196°C to +400°C | 0.6–2.0 | −50°C to +70°C | 5000 m | 40 bar |
Application Area
The MDH(L) is specified across four application groups where extreme temperature, zero leakage, and low-flow high-head performance intersect.
Semiconductor Manufacturing
Precision temperature control and chemical circulation for wafer polishing and cleaning lines, CMP (chemical mechanical planarization) temperature conditioning, thin-film deposition equipment (CVD/PVD), etching system cooling, and packaging and test handlers including thermal chucks and thermal stream systems. The seal-less static containment and 316 stainless steel wetted path protect high-purity process media from contamination and the fab environment from leakage.
AI and Data Center Cooling
Secondary-side circulation in direct-to-chip liquid cooling, coolant distribution units (CDUs), rack manifolds, and thermal test benches for AI servers and high-density computing. The pump handles water-glycol mixtures and dielectric coolants at stable low-flow pressure, supporting the continuous-duty thermal management that GPU clusters require.
Temperature Control Systems
High-temperature mold temperature control, high-low temperature test chambers, mold/plate temperature control systems, TCU (Temperature Control Unit) skids, and ultrasonic cleaning equipment.
Chemical and Process Industries
Chemical processing equipment, vacuum/negative-pressure rectification, metering and dosing skid systems, hydrogen generation systems, ozone generators, and high-end printing and dyeing equipment.
Product Certification
