Shail Vac Engineers
IRQAO certifications IBC
download brochure
Vacuum Products Zero Discharge Systems Air Pollution Control Systems

Content on this page requires a newer version of Adobe Flash Player.

Get Adobe Flash player

Vacuum Products
Ejectors - Overview

Carrying an enormous experience in the field of vacuum for more than over 15 years, Shail Vac has been designing and manufacturing the best in kind vacuum systems. Our engineers take utmost care in designing and fabricating ejectors so that our customers get a reliable and performance oriented vacuum systems. With immense dedication and modern manufacturing facilities, Shail Vac has become a leading name in the field of vacuum.

Ejector is a type of pump that uses the Venturi effect of a converging-diverging nozzle to convert the pressure energy of a motive fluid to velocity energy which creates a low pressure zone that draws in and entrains a suction fluid.

Vacuum Systems, Steam jet ejector, Liquid Jet ejector, Single stage ejectors, Multi stage ejectors, V stage Ejectors, W stage Ejectors, X stage Ejectors, Y stage Ejectors, Z stage Ejectors, Hogger ejectors, Booster Ejectors, Nozzle, Single Nozzle ejectors, Multi Nozzle Ejectors, Throat, Diffuser, Suction chamber, Suction capacity, Suction pressure, Discharge pressure, Live steam, Vacuum, No moving parts, Condenser, Direct Contact Condenser, Shell and tube type Condenser, Surface Condenser, Cooling tower, Venturi Effect, Ejectors, vacuum systems supplier, Steam Jet ejectors, vacuum systems manufacturer, vacuum systems supplier india, vacuum systems manufacturer india
  1. The motive steam with high pressure and low velocity is supplied in the steam chest which exits the steam nozzle at design suction pressure and supersonic velocity. (Where velocity of the steam up to Mach number 3.0 or 4.0 is achieved by Converging & diverging nozzle).
  2. The nozzle throat diameter is designed to control the amount of steam to pass through the nozzle at a given pressure and temperature.
  3. And then motive stream is injected into a suction chamber. The suction chamber has the lowest static pressure (approximately equivalent to the suction pressure Ps).
  4. As the combine flow of suction fluid and the motive fluid (steam) move through the converging section of the diffuser its pressure increases with decrease in its velocity.
  5. At some point in the throat of the diffuser, their combined flow attains the exact speed of the sound. A stationary, sonic-speed shock wave is formed there which gives a sharp rise in absolute pressure. The shock wave in the diffuser throat changes the velocity from supersonic to sub-sonic.
  6. The velocity of the mixture is sub-sonic in the diverging section of the diffuser. The increasing cross sectional area increases the pressure but further decreases the velocity.
  7. The net result of these energy transformations is an increase of the absolute pressure of the mixture on discharge to several times the pressure at which it entered the ejector inlet.
Home   -   About us   -  Products   -  Infrastructure   -   Contact Us   -   Sitemap You Tube
factory 1 To 6, Royal Industrial Estate, Nr. Rupala Automobiles,
Nr. Delad Patia, GIDC Sayan, Surat(Gujarat) - 394 130.
phone +91 - 99251 13000
+91 - 2621 - 291713
Shail Vac Engineers Check Your Email
© Copyright Shail Vac Engineers. All Rights Reserved
Design by Brainee Creations