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MPC 603 E Series

  • Single-stage, 2-head design for high flow rates
  • Ultimate pressure ≤ 55 mbar — ideal for filtration, distillation, and vacuum drying
  • Fully chemically resistant PTFE/carbon-fiber wetted materials
  • Oil-free, low-maintenance operation
  • Integrated gas ballast valve

High-Flow Single-Stage Chemical-Duty Diaphragm Pump

The Welch MPC 603 E is a chemically resistant diaphragm vacuum pump suitable for vacuum filtration, vacuum distillation, vacuum drying, and compressing neutral and aggressive gases and vapors according to the resistance of the indicated materials. It includes an integral gas ballast valve to help clear condensate build-up during processes. The MPC 603 E features 2 heads / 1 stage (single-stage configuration) with Gen 3 head technology, delivering a free air capacity of 73 lpm @60Hz / 66 lpm @50Hz and an ultimate pressure of 55 mbar / 40 Torr. This single-stage design maximizes volumetric flow, making the MPC 603 E ideal for applications that require high throughput rather than deep vacuum.  Wetted parts include a PTFE with carbon-fiber reinforced pump head, PTFE vacuum hoses, PEEK valves, EPDM seals, and a PTFE-coated elastomer diaphragm, providing robust chemical resistance against a wide range of solvents, acids, and corrosive vapors. The oil-free operation ensures a clean workplace environment, low maintenance costs, and long diaphragm service life.  

Available in 230V 50/60Hz (415721) and 115V 50/60Hz (415721-01).

Ordering Information

Unit 

MPC 603 E

Order no. (Article no)

 

415721

415721-01

 

 

230 V 50/60Hz, 230V  60Hz, 1Ph
inclusive mains connection cable IEC C13 with plug CEE-plug (CEE 7/4), and UK-plug (BS1363)

115 V 60Hz 1Ph
inclusive mains connection cable IEC C13 with  US-plug (NEMA 5-15)

Number of heads

 

2

Number of stages

-

1

Max. Pumping1 speed 50/60Hz according to ISO 21360-1 (at 1000 mbar)

(@50Hz) m³/h (l/min)

4.0
(66)

 

(@60Hz) CFM

2.6

2.6

Ultimate total pressure/vacuum without gas ballast  50/60Hz 

mbar (Torr)

55 (40)

55 (40)

Ultimate pressure/Vacuum (with gas ballast) 50/60Hz (abs)

mbar (Torr)

80 (60)

80 (60)

Weight

kg (lbs)

11.2 (24.6)

11.2 (24.6)

Dimensions (LxWxH), appox./ approximate

mm (in)

250x270x190
(9.8x10.6x7.4)

Noise level

dB (A)

44

Scope of delivery (Items supplied)

 

Pump completely mounted, ready for use, with manual.

 

Connections

 

Vacuum connection IN (inlet) / Connection flange 

DN .. KF

16 /
Hose nozzle 8-10 mm

Exhaust connection EX (exhaust) / Connection flange

DN .. KF

16 /
Hose nozzle 8-10 mm

Max. permissible inlet pressure (abs)

bar (psi)

1.1

Gas ballast (GB) (if available)

-

manual

Max permissible pressure at gas ballast valve, abs. 

bar (psi)

1.2 (17.5)

Max permissble outlet pressure (abs)

bar (psi)

1.1

Ambient conditions

 

Ambient temperature during operation, max.

°C/F

10 - 40

Electrical data

 

Rated mains voltage

V AC

230

115

Rated frequency

Hz

50/60

60

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