Diaphragm Seals & Solutions

DIAPHRAGM SEALS & SOLUTIONS CATALOGUE

Holland – UK – Romania – India – Thailand – Dubai – USA To our knowledge, the information contained herein is accurate as of the date of this document. However neither Badotherm, nor its affiliates makes any warranty, express or limited, or accepts any liability in connection with this information or its use. This information is for technical skilled persons at their own discretion and risk and does not relate to the use of this product in combination with any other product. The user alone finally determines suitability of any information or material in contemplated use, the manner of use and...

WHO WE ARE Galileo Galilei once said ‘measure what is measurable and make measurable what is not so.’ Four hundred years later, this is exactly what we do. We’re a family-owned company specialised in high quality mechanical process instrumentation. Founded back in 1957 as a production- and repair shop for thermometers, today we are a leading manufacturer of diaphragm seals, pressure gauges, temperature gauges, thermowells, valves and manifolds. We have offices and facilities in Europe, the Middle East, India, the Far East, and Americas. A PASSION FOR EXCELLENCE Our mission is to create the best...

DIAPHRAGM SEALS & SOLUTIONS I – GENERAL INFORMATION ____________________________________________________ 7 Introduction Diaphragm Seals _______________________________________________ 8 Basic Principles of Diaphragm Seal Technology __________________________________ 11 Pressure _________________________________________________________________ 11 Temperature _____________________________________________________________ 14 Mounting ________________________________________________________________ 17 Diaphragm Seal Type Overview ______________________________________________ 22 Flush Flanged Diaphragm...

DIAPHRAGM SEALS & SOLUTIONS IV – DATA SHEETS – ACCESSORIES ________________________________________________ 103 Flush Flange ______________________________________________________________ 104 Flush Ring _______________________________________________________________ 107 Reducer Flange ____________________________________________________________ 111 Support Handles __________________________________________________________ 113 Heavy Duty Support Tube ___________________________________________________ 113 TR – Temperature Reducer __________________________________________________ 114 TC – Temperature...

INTRODUCTION DIAPHRAGM SEALS INTRODUCTION Modern chemical processing and process manufacturing procedures demand ever greater accuracy and reliability from their pressure, level and flow measuring instruments. This is important to minimise costs, and to keep production downtime and shut downs to an absolute minimum. In various situations it is necessary to isolate and therewith protect the pressure measuring instrument from the process medium in order to maintain the required accuracy and reliability objectives. This isolation or separation of the instrument and the process is typically done...

High/low temperatures: When the process medium temperature is very high or very low and exceeds the temperature limits of the pressure measuring instrument resulting in damaged measurement instruments. Sanitary requirements: When the process is easily affected by the formation of bacteria on or in the process connection. The presence of bacteria in the process medium can lead to rejection of production batches. These applications where hygiene is of paramount importance are often found in the pharmaceutical, food and beverage industry. Specific process connections: When the location of the pressure...

BASECAL BaseCal is Badotherm’s web-based Diaphragm Seal performance calculation software. BaseCal simplifies the proper selection of Diaphragm Seal transmitter combinations. Regardless the application (flow, pressure, level, etc), users can select the Diaphragm Seal System for the needs of the application. The software requests you to fill out the application parameters and will then calculate the correct calibration range. BaseCal considers the following application variables: Mounting style Differential, absolute or gauge application Ambient and process temperature Operating and design pressure...

INTRODUCTION Diaphragm Seals on instruments are used to measure pressure. Pressure can be described as a force applied on a surface. There are different ways of expressing pressures. It can be expressed in kilogramforce per square centimetre (kgf/cm²), whereby kgf stands for a force and cm² for the surface the pressure is applied on. Same is valid for the commonly used Pounds per Square Inch (PSI). Pressure can also be expressed in various other units and most common are: bar, mbar, kPa and MPa, mmHG = Torr (vacuum measurement), mmH20, inchH2O. The pressure that is present on a daily basis is...

either one of the above mentioned nominations of pressure. The static pressure is especially important in case of differential pressure measurement. E.g. pressure at high pressure (HP) side is 100,1 barg; pressure at low pressure (LP) side is 100 barg, then the differential pressure (dP) is 0,1 bar, and the value of the static pressure is 100 bar. HYDROSTATIC PRESSURE: is the pressure exerted by a fluid column due to the force of gravity With hydrostatic pressure measurement it is possible to measure level in vessels, tanks, reactors etc. This is one of the most common applications for Diaphragm...

BASIC PRINCIPLES OF DIAPHRAGM SEAL TECHNOLOGY – PRESSURE MINIMUM PRESSURE RANGE OR SPAN DP transmitter (mbar) GP/AP transmitter (mbar) Testing variables: Minimum pressure ranges are only related to the diaphragm sizes. The pressure range of the transmitter or pressure gauge, and the capillary diameter should be adjusted accordingly. AISI 316(L) diaphragm material. Transmitter volume is average of various transmitters brands. Reference temperature 20°C. DP, GP & AP transmitter sensor diaphragm should be equal or smaller than seal diaphragm size. DP transmitter values applicable for double sided...