Our Products

Rotary Evaporator

Laboratory equipment

Jacketed Reactor

Contact Us

We Cherish All Interactions

Vacuum - Engineering ToolBox

Vacuum - Engineering ToolBox

Vacuum Pressure - Units Converter - Vacuum converting units - % vacuum - mm Mercury - psi - torr - micron - kPa; Vacuum Pumps - Exhaust Pipes - Capacities of vacuum pump exhaust pipes; Water - Boiling Points at Vacuum Pressure - Online calculator, figures and tables giving the boiling temperatures of water in varying vacuum, SI and Imperial units.

Chapter 3: Review of Basic Vacuum Calculations

Chapter 3: Review of Basic Vacuum Calculations

3.1 Calculate the approximate total force that will be exerted on a 4" diameter glass view port used in a vessel under high vacuum conditions. Chemical Effects of Vacuum: The removal of gases from a container will reduce the number of gas atoms that are available to interact with materials in .

Pump Sizing and Selection Made Easy - Chemical Engineering .

Pump Sizing and Selection Made Easy - Chemical Engineering .

Jan 01, 2018 · Example 1. Pump Sizing and Selection. The following is a pump sizing problem to illustrate the calculations in this article. You are told to purchase a pump for your manufacturing facility that will carry water to the top of a tower at your facility. The pump is a centrifugal pump that will need to pump 800 gal/min when in normal operation.

Pump calculations - The Engineering Mindset

Pump calculations - The Engineering Mindset

Sep 11, 2017 · To calculate the new pump head pressure from an increase or decrease in pump speed rpm, the following formula and calculation can be used. Calculate head pressure for an increase or decrease in pump speed rpm. To calculate the new pump impeller diameter to suit a change in pump flow rate, the following formula and calculation and be used. .

Vacuum Process Pipe Sizing - Pipelines, Piping and Fluid .

Vacuum Process Pipe Sizing - Pipelines, Piping and Fluid .

Nov 27, 2006 · I would like to know how to size VACUUM process pipes. I was told by a facility engr friend to the following; 1. determine the total flow rate (scfm) 2. determine the size of the pump accordingly 3. convert scfm to acfm 4. look at the pressure loss chart (crane chart out of Flow of Fluids -> given at 100 psig) to determine psig loss per 100 ft.

Home | NRCS

Home | NRCS

Pump & System Curves Print Pump Design Print Equivalent Length Tables Print Pump Design CLEAR CELLS. Author: matt.blohowiak Last modified by: matt.blohowiak Created Date: 5/13/2004 4:37:57 PM Company: USDA Other titles: Size a Pump 'Size a Pump'!Print_Area .

Calculating Evacuation Time - Vacuum Furnace Engineering .

Calculating Evacuation Time - Vacuum Furnace Engineering .

The pumping speed against pressure graph for a vacuum booster pump is not a smooth curve. The graph varies from manufacturer to manufacturer even though the pump design is based on the original Roots design. The pump speed curve is similar to a bell-shaped curve and rises to a peak from startup and then drops off as the pressure drops. (Fig. 3)

CUSTOMIZED VACUUM SYSTEMS - Pittcon

CUSTOMIZED VACUUM SYSTEMS - Pittcon

construction principle.This design step is important to calculate the size of the system and sets the basis of the further steps. Customer input – backing pump In this step it is useful to define the backing pump for the high vacuum system. The customer can specify the preferred pumping technology (dry or wet). Information about

Air and Vacuum System - Hospital Facility Services

Air and Vacuum System - Hospital Facility Services

in this Design Guide will help streamline the process. When correctly done, it is important to remember that a medical gas design will yield an integrated system, not simply a collection of components. That is, a medical gas system is more than the sum of its parts. Although a compressor or pump

Vacuum Ejectors - Schmalz

Vacuum Ejectors - Schmalz

Vacuum generators provide the required vacuum. The vacuum is generated either pneumatically (ejectors) or electrically (pumps, blowers). Pneumatic vacuum generators implement short cycle times and can be integrated directly into the system due to their compact and lightweight design. Ejectors offer intelligent functions for energy and process .

Design and Modeling of Vacuum Pumping Systems for .

Design and Modeling of Vacuum Pumping Systems for .

The study of vacuum dates back to 1st century B.C but the major breakthrough was with the development of vacuum pump in late 16th century. Vacuum pumps which are the machines used to create vacuum pumps out the gases from the chamber or a .

Vacuum - Evacuation Time - Engineering ToolBox

Vacuum - Evacuation Time - Engineering ToolBox

The evacuation time for a vacuum pump can be calculated as. t = V / q ln(p 0 / p 1) (1). where. t = evacuation time (s) V = enclosed evacuated volume (m 3, cu.ft). q = volume flow rate capacity of the vacuum pump (m 3 /s, cu.ft/s). p 0 = initialization pressure - normal atmospheric pressure (mbar, mmHg). p 1 = end vacuum pressure (mbar, mmHg)

TOTAL HEAD, N.P.S.H. AND OTHER CALCULATION EXAMPLES .

TOTAL HEAD, N.P.S.H. AND OTHER CALCULATION EXAMPLES .

Cameron included in this example or you can calculate the loss using the Darcy-Weisbach equation with the Moody diagram or the Colebrook or Swamee-Jain equation. Your task is to: 1. Calculate the total head and select the pump. 2. Calculate the NPSH available .

TUTORIAL CENTRIFUGAL PUMP SYSTEMS

TUTORIAL CENTRIFUGAL PUMP SYSTEMS

Fluide Design Inc., 5764 Monkland avenue, Suite 311, Montreal, Quebec, Canada H4A 1E9 . Examples of total head calculations - sizing a pump for a home owner application 14. Examples of common residential water systems 15. Calculate the pump discharge pressure from the pump total head .

Pump Power Calculation Formula | Specific speed of a .

Pump Power Calculation Formula | Specific speed of a .

Specific Speed of Pump. The specific speed "Nq" is a parameter derived from a dimensional analysis which allows a comparison of impellers of various pump sizes even when their operating similar Q -H range.. The specific speed can be used to classify the optimum impeller design. Specific Speed of pump (Nq) is defined as the speed in RPM at which a geometrically similar impeller would run if .

Calculation Of Pump Head - LinkedIn SlideShare

Calculation Of Pump Head - LinkedIn SlideShare

Oct 21, 2015 · Pump Safety A note about centrifugal pump is that it doesn't require a safety valve while a P.D pump must have a safety valve because at certain pressure C.F pump will stop producing any further pressure while the P.D pump will continue to increase pressure with every stroke until or unless the Safety valve blows or the discharge is opened.

Fundamentals of Vacuum Technology

Fundamentals of Vacuum Technology

1 Preface Oerlikon Leybold Vacuum, a member of the globally active industrial Oerlikon Group of companies has developed into the world market leader in the area of vacuum technology.

Fundamentals of Vacuum Technology

Fundamentals of Vacuum Technology

1 Preface Oerlikon Leybold Vacuum, a member of the globally active industrial Oerlikon Group of companies has developed into the world market leader in the area of vacuum technology.

Fundamentals of Vacuum Technology

Fundamentals of Vacuum Technology

1 Preface Oerlikon Leybold Vacuum, a member of the globally active industrial Oerlikon Group of companies has developed into the world market leader in the area of vacuum technology.

Free Pump Software - Hydraulic Institute

Free Pump Software - Hydraulic Institute

PSIM 2 is a free educational tool that allows engineers to build models of pump systems and simulate hydraulic behavior. PSIM 2 will model pump system behavior and demonstrate the impact of operational and design tradeoffs on system performance and energy usage for centrifugal and positive displacement pumping systems.

Venturi nozzle calculation - MECAFLUX

Venturi nozzle calculation - MECAFLUX

The calculation interface Venturi tube in tools MECAFLUX. This interface is used to calculate a venturi according section, density, flow or pressure measured. Whether for producing a flow meter, a vacuum system . You can set in the "venturi" software tool mecaflux (Tools menu), The parameter desired by checking "sought value".

CALCULATION EXAMPLE

CALCULATION EXAMPLE

Table 6 Power to the pump shaft calculation results. PUMP SELECTION DATA. . The number is low, below 2000 (see Figure 13) for pumps of radial design that provide high head and low flow. It is large, over 10000, for pumps that provide high flow and low head. Along with the suction specific speed, it can be used to predict cavitation.

Ejector Design Software - Ejector Sizing Calculation .

Ejector Design Software - Ejector Sizing Calculation .

This website offers the following: Ejector Design Software to do conceptual design and generate ejector sizes. The ejector design principles used in the ejector calculations for the program are explained including the ejector energy balance and effects of the ejector flow cones.. Free demo programs for a short time are offered to let you see how the ejector program works - they are not .

How to Calculate NPSHa for Systems Under Vacuum | Pumps .

How to Calculate NPSHa for Systems Under Vacuum | Pumps .

Nov 19, 2018 · The application example for this article is a steam condenser. Condensers operate in a vacuum by design because this approach maximizes efficiency for the steam system. If you are applying pumps in commercial or industrial applications, you will eventually encounter a situation where the liquid on the suction side of the pump is under vacuum.

Calculation of Pressure Distribution of Vacuum System for .

Calculation of Pressure Distribution of Vacuum System for .

synchrotron radiation desorption, this calculation gave a value of average pressure for an option of six ion pumps 6.81 x l0-9 torr while the approximation calculation gave a value of 6. 91 x 1 o-9 torr for the same option. 3. In order to calculate the pressure distribution with the better

2 Basic calculations

2 Basic calculations

2.2.2 Condenser mode. In many vacuum processes (drying, distillation), large volumes of vapor are released that have to be pumped down. Moreover, significant volumes of leakage air will penetrate into large vessels, and those substances that are being vaporized or dried will release additional air that is contained in pores or dissolved in liquids.

EJECTORS - Graham Corporation designs and builds vacuum .

EJECTORS - Graham Corporation designs and builds vacuum .

Single-Point Design. If only one load and vacuum are required for a particular application, single and multistage ejectors can be designed specifically for one condition. This saves steam. Occasionally, however, single-point design ejectors are not always stable at very light loads or at loads slightly in excess of design.

vacuum pump calculation xls - PngLine

vacuum pump calculation xls - PngLine

vacuum pump calculation xls. fuel pump clipart calculator clipart gas pump clipart. pin. Pump Sizing Spreadsheet Swimming pool design: pin. . The Profile and Structure Design on Trochoidal Vacuum Pump Article Preview: pin. Design on Ultrahigh Vacuum System with Titanium Pump

Sizing Pressure-Relief Devices - AIChE

Sizing Pressure-Relief Devices - AIChE

Pumps can be an overpressure hazard to downstream equipment. All positive-displacement pumps should be reviewed as a potential source of overpressure. Normally, the relief device on a pump discharges to the inlet side of the pump — either to the pump suction pipe or to the suction vessel. Routing to the suction vessel is recommended to

Power Consumption Of Vacuum Pumps

Power Consumption Of Vacuum Pumps

The DAE calculations (English Units) that I have presented in an earlier blog entry are based on the HEI (Heat Exchange Institute) method for steam jet vacuum ejectors. The current blog entry presents the power consumption of vacuum pumps based on the method provided in the design guide of a reputed engineering company.