Systems

Oil-Sealed Rotary Vane Vacuum

Oil-Sealed Rotary Vane Vacuum System

The Ohio Medical Oil-Sealed Rotary Vane Medical Vacuum System is NFPA 99 compliant for use in medical vacuum and dual Medical/Surgical applications. The unit consists of electric motor driven pumps, vacuum receiver, electrical control system, and interconnection piping and wiring. The components are modularly assembled to accommodate most existing doorways and designed for serviceability. The packaged unit is factory tested prior to shipment and warranted for a period of (30) months from date of shipment or (24) months from date of start-up.

Vacuum Pump Module
The total recirculating oil sealed Rotary Vane Vacuum Pump is single stage air cooled, and capable of producing a maximum vacuum level of 29.1” Hg. The pump assembly includes an integral anti-suck back valve, exhaust oil separator delivering 99.9% oil-free air, oil level sight glass, and an exhaust pressure gauge. Each pump is protected by a temperature switch, check valve, and includes pump isolation valve, source isolation valve and flexible connector. 
Vacuum Receiver
The Vacuum Receiver is constructed to ASME® (American Society of Mechanical Engineers) standards, rated for full vacuum, and include a valved by-pass, manual drain valve, vacuum gauge and the National Board label.

System Controls
The UL® listed electrical motor control system is of a fuseless design in a NEMA 12 enclosure. The “Continuous On Demand” feature stops the operation of the motor(s) during periods of low or no demand. The controls include individual self protected combination motor control(s) with short circuit, single phase and thermal overload protection, individual 120 volt control circuit transformers with fuseless primary and secondary protection, pressure sensors, and an electronic controller to automatically switch the operating sequence of the vacuum pumps, on multiplex systems only. The cabinet door has an HMI (Human Machine Interface) Color Touch Screen system status display to include system pressure, pump operation, accumulated time, maintenance interval, fault conditions and silence button; lighted Hand-Off-Automatic selector switches and safety disconnect operating handles. 
All required local alarm functions are integrated into the packaged system. The circuitry is designed so the audible signal can be silenced and the visual indicator will remain until the fault has been cleared and the reset button actuated. Local alarm functions are provided for reserve pump in use (lag alarm). Dry contacts and/or remote communication protocols provided for remote alarm signals or BMS.
Accessories
Accessories included for job site installation are inlet and discharge flexible connectors, source isolation valve, vibration mounting pads and touch-up paint.

Oil-Sealed Rotary Vane
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