More on the results of vacuum pumps:

Vacuum Pumps Common Problems and Troubleshooting

through the discharge fitting back into the pump, or reduce pump inlet pressure below certain set pressure to allow collected oil to drain back through the integral check valve in to the oil mist eliminator....<<more>>

Discharge pumps [POLY]

The highly viscous material must be transported from a reactor under vacuum. Discharge pumps from the POLY series from WITTE are specifically created for this task. The customer can choose between a standard design or an individual design according to their requirements....<<more>>

Vacuum pump - Wikipedia

A vacuum pump is a device that removes gas molecules from a sealed volume in order to leave behind a partial vacuum.The first vacuum pump was invented in 1650 by Otto von Guericke, and was preceded by the suction pump, which dates to antiquity....<<more>>

How to Size Liquid Ring Vacuum Pumps - Graham

A liquid ring vacuum pump is a very versatile machine. It can handle “wet” loads and has no metal-to-metal contact. It also acts like a direct contact condenser; it can absorb the heat generated by...<<more>>

Vacuum System Troubleshooting - Tuthill Vacuum & Blower

Excessive pump discharge or back pressure – Vacuum pumps are designed to discharge to atmospheric pressure or just slightly above, unless they are specifically designated by the manufacturer as...<<more>>


pressure is critical and a used pump, if started at too high a pressure, may go into a glow discharge mode and release previous pumped gasses which can contaminate the chamber and the product under test or production....<<more>>

Liquid Ring Vacuum Pump System | Somarakis

The heart of the operation of the pump is in the very tight clearances between the rotor and the cone necessary to make the pump seal, both so the gas can be compressed and the leakage between the high pressure discharge and the low pressure intake is minimized....<<more>>

Ejectors Give Any Suction Pressure - Graham Corporation

Ejectors Give Any Suction Pressure Recent tests on multistage ejector systems will simplify your task of designing vacuum-producing equipment for any pressure....<<more>>

An Introduction to Vacuum Pumps - Vacaero

The vacuum pump functions by removing the molecules of air and other gases from the vacuum chamber (or from the outlet side of a higher vacuum pump if connected in series). While the pressure in the chamber is reduced, removing additional molecules becomes exponentially harder to remove....<<more>>

SC Pump & Compressor Series | NASH Liquid Ring

The NASH SC liquid ring vacuum pump and compressor series is a reliable and flexible alternative to the popular NASH CL series. Designed as an upgrade to the existing CL models, the SC series delivers proven performance with flexible installation options and reduced maintenance requirements....<<more>>

Pipe Connections and Sizing - General | Dekker Vacuum

For pump systems operating in parallel on a common discharge, install a suitable check valve close to the separator discharge flange of each unit. Discharge check valves should be a low differential pressure type with positive shutoff....<<more>>

Maintenance Tip: Troubleshooting High Horsepower | NASH

Backpressure occurs when the vacuum pump is operating with a discharge pressure of greater than 1 psig (7 kPag). Well designed vacuum systems operate with a discharge pressure of less than 0.5 psig (3.45 kPag)....<<more>>

final test ifsta pumping chapter 12 Flashcards and - Quizlet

Learn final test ifsta pumping chapter 12 with free interactive flashcards. Choose from 179 different sets of final test ifsta pumping chapter 12 flashcards on Quizlet....<<more>>

Oil discharge from vacuum pump exhaust - Vacmobiles

This type of pump is a moderate cost means of achieving vacuum levels in the 98% - 99% vacuum region (20 mbar to 10 mbar of absolute pressure). In operation, the oil sealed vacuum pump continuously recirculates a volume of oil....<<more>>

Rotary Vane Compressors and Vacuum Pumps - Gast

the discharge portion of the cycle, creating pressure at the exhaust port. The vacuum and pressure flows are free of pulsation because the inlet and exhaust ports do not have valves, and the air is moved continuously rather than intermittently....