Request a Quote

Message / Order details:

Products / Laboratory / OIL-FREE CLAW SYSTEMS / Rotary Claw / Duplex Stack


We offer a large selection of dry vacuum pump and rotary vacuum pump systems for laboratories. GlobalVac has been an industry leader in vacuum technology, we have worked with many laboratory facilities in manufacturing their ideal dry vacuum pump and rotary claw vacuum pump systems.


Our highly experienced technicians will be able to help with your purchase of the perfect dry vacuum pump and rotary vacuum pump system for the size and capabilities of your laboratory. Please feel free to browse our extensive line of dry vacuum pump and rotary vacuum pump systems.

Duplex Stack

  • Two Oil-free Rotary Claw Vacuum Pumps mounted on a fabricated
  • frame with an Epoxy Lined vertical receiver and a mounted and wired PLC Control Panel
  • Inlet Filter mounted on each pump
  • High Discharge Temp Switch on each pump
  • No Oil in pumping chamber only in Gear Box
  • Electrically actuated Automatic Purge process for removing condensable vapors in pumping chamber as pump cools
  • Epoxy Lined Vertical Receiver with System Isolation Valve, Sight Glass and Manual Drain Valve
  • Duplex PLC Control Panel
  • System is built as two skids bolted together with single point connections for process inlet, system discharge and control power.

Duplex PLC Control Panel Including the Following:

  • Finger Safe Power Distribution Block
  • Full Voltage Motor Starter for Each Pump
  • 120V Control Transformer with CB protected Primary and Secondary Circuits
  • 120Vac/24Vdc Power Supply
  • PLC w/integrated HMI with Touch Screen & Keypad
  • Door Mounted Motor Circuit Protector for Each Pump
  • Auto Restart after Power Outage
  • 4-20mA Transmitter to Control Pumps via PLC
  • H/O/A Switch, Run Light, Hour Meter integrated in PLC
  • Door Mounted System Disconnect
  • Dry Contacts for Remote Monitoring
  • PLC By-pass allows Pump Operation with MCPs
  • System Fault Indicator display on PLC
  • UL 508 Listed, NEMA 12 Enclosure
  • Maintenance Due Screen display on PLC
  • System Parameters selection via PLC
  • Panels with VSD also available

GPVBD-1104-P-120244/8828.4"Hg7828120 GALLLON
GPVBD-1144-P-120357/11428.4"Hg10840120 GALLLON
GPVBD-1102-P-120479/15828.4"Hg14654120 GALLLON
GPVBD-1142-P-1205103/20628.4"Hg20476120 GALLLON
GPVBD-1202-P-2006.4135/27027"Hg26496200 GALLLON
GPVBD-1252-P-2007.5165/33027"Hg324118200 GALLLON
GPVBD-1322-P-2009200/40025.5"Hg390144200 GALLLON
GPVBD-1502-P-24015325/65024"Hg630230240 GALLLON