Edwards Vacuum XDD1 Diaphragm Pumps

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SKU Supply Voltage Model Price In Stock Buy
Edwards Vacuum XDD1 Diaphragm Pumps A74602983 1Ph 100-120/200-230V 50/60Hz XDD1 Mk2 £1502.00 Usually Shipped in 3-4 Weeks Contact Us for Exact Information
Edwards Vacuum XDD1 Diaphragm Pumps A74603991 DC 24V XDD1 Mk3 £1785.00 Usually Shipped in 3-4 Weeks Contact Us for Exact Information
Edwards Vacuum XDD1 Diaphragm Pumps A74601800 Not Applicable XDD1 Diaphragm Pump Service Kit £334.00 43 + -

The Edwards range of diaphragm pumps offer clean pumping in a lightweight and compact design making them ideal for clean laboratory applications. Pumps can operate independently or as part of a modular system and require minimal maintenance. These are available with pumping speeds up to 2 m3/hr.

Technical Data

Pumping Speed  
50Hz 1.2 m3h-1
60Hz 1.4 m3h-1
600 rpm 0.6 m3h-1
1700 rpm (Factory setting) 1.4 m3h-1
2200 rpm 1.7 m3h-1
Ultimate vacuum (typical) <2 mbar
Ambient temperature limit 10 to 40 °C
Inlet connection NW16
Exhaust connection The pump is fitted with a silencer which can be removed and an exhaust line connected with a 1/8 inch BSP fitting
Max allowed inlet pressure 1 bar (abs)
Power connector IEC EN60320 C13
Motor power  
a.c. 80 W
d.c. 64 W
a.c. 6.5 kg
d.c. 4.1 kg



Features and Benefits

  • Dry pumping, lubricant free technology eliminating the need for costly oil changes and disposal.
  • Lightweight and compact with a small footprint allowing flexibility of use.
  • Ideal backing pump for small turbomolecular pumps.
  • Complies with EN61010, EN1012, CSA/UL standards.
  • Worldwide 115/230 V or 24 V options.
  • IEC 60320 C14 connector on a.c. pumps. 


XDD1 diaphragm pumps are used for backing small compound turbomolecular pumps in clean, high vacuum applications, and also designed to be free standing bench top units. A typical ultimate pressure of better than 5 x 10-8 mbar can be achieved when using an XDD1 to back a 70 ls-1 turbomolecular pump.

The 24 V version is designed to provide a complete pumping package using the Edwards Turbo and Instrument Controller (TIC). The d.c. voltage motor runs on 24 V via a 15 pin DIN connector. By selecting the appropriate mode the pump speed can be controlled by the user to provide variable pumping speed. This version is suited to the customer who is building their own a system. The pump is a compact and efficient. Under normal conditions the XDD1 is virtually maintenance free, the lifetime of the diaphragms and valves is typically > 10,000 operating hours, depending on the application. 


  • Residual gas analysis
  • Mass spectrometers
  • Cryostat and Dewar evacuation
  • Ion pump evacuation
  • Surface science
    • Weight
      1297 g
    • SKU
    • Commodity Codes
  • Manufacturer
    Edwards Vacuum
  • Country of Origin
    Czech Republic
  • Supply Voltage
    1Ph 100-120/200-230V 50/60Hz, DC 24V, Not Applicable
  • Model
    XDD1 Mk2, XDD1 Mk3, XDD1 Diaphragm Pump Service Kit
  • Pressure Ultimate (Pa)
  • Pumping Speed (m3/s)
    3.333 × 10⁻⁴
  • Power Total Rated (W)