Petrochemistry

industry 525119 1280 min
Foto by 127071 on Pixabay

Petrochemistry is a fundamental and dynamic sector within the chemical industry, specializing in the transformation of fossil raw materials such as natural gas, shale gas, and naphtha into essential chemicals and intermediates. Core processes in this area include the production of ethylene and methanol, which serve as the basis for a wide range of derivatives. Through processes like thermal cracking, catalytic synthesis, and distillation, valuable intermediates such as butadiene, benzene, ethylene, and propylene are produced. These compounds are indispensable for the synthesis of plastics, solvents, synthetic fibers, and many other chemical products that play a central role in our daily lives.

Importance of Measurement and Monitoring Technologies

The success and efficiency of petrochemistry significantly depend on the accuracy and reliability of the measurement and monitoring technologies used. Instruments designed specifically for use in explosive and corrosive environments, such as ATEX-certified measuring devices, are crucial for safety. Furthermore, instruments certified according to Safety Integrity Level standards (SIL, according to IEC 61508), enhance plant reliability by minimizing the likelihood of operational disruptions and thus ensuring continuous production.

Advanced Safety Standards

To master the diverse challenges in petrochemistry, advanced safety standards are essential. Standards such as NACE / ISO 15156 have been developed specifically for requirements in environments with high hydrogen sulfide content (H2S) to prevent corrosion and thus ensure the longevity and reliability of the instrumentation. These standards are crucial for safe handling of highly reactive and potentially dangerous raw materials and products like butadiene, benzene, and ethylene.

Technical Solutions for Petrochemical Processes

Specific requirements of petrochemical processes, especially when dealing with aggressive media and at high operating temperatures, necessitate individually tailored technical solutions. These include diaphragm seal systems and protection tubes that help protect the measurement instrumentation from extreme conditions. Moreover, precise measuring devices for pressure, temperature, and level, as well as calibration services, are essential to ensure the accuracy and reliability of process control in refineries and chemical plants.

Application Examples

  • Crack pyrolysis furnaces crucial for the production of ethylene, a key building block for plastics and other synthetic materials.
  • Steam methane reformers that produce hydrogen and synthesis gas for ammonia synthesis and other chemical processes.
  • Distillation columns that allow precise separation of monomers like propylene, needed for the production of polypropylene and other polymers.
  • Polymerization reactors that form the basis for the production of a variety of plastics.
  • Tube bundle reactors for the efficient oxidation of hydrocarbon compounds to gain important industrial chemicals.
  • Tank farms that ensure the safe storage of chemicals and intermediates, thereby supporting a continuous supply chain.

These technologically advanced applications demonstrate the complexity and innovation potential of petrochemistry. Through continuous research and development, as well as the implementation of advanced safety and monitoring systems, petrochemistry significantly contributes to the economic development and sustainability of our modern society.

SITRANS FM MAG 3100 P Full-bore electromagnetic flow sensor, flanged, diameter DN 15 to DN 300 (1/2" to 12"). Suitable for volume flow measurement of liquids (conductive), main applications in chemical industry, process industry, pulp & paper, industrial wastewater.

Datasheet
User Manual

SITRANS FM MAG 5100 W Electromagnetic flow sensor, flanged, diameter DN 15 to DN 1200 (1/2" to 48"). Suitable for volume flow measurement of liquids (conductive) , for applications in water abstraction, water & wastewater treatment, water distribution networks, custody transfer metering.

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User Manual

The digital pressure transmitter which features remote safety handling - developed according to IEC61508 standards for SIL2/3. Accuracy: 0,065 %



Datasheet
User Manual

2-wire head transmitter with and without HART communications interface for mounting in the connection head of the temperature sensor.

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User Manual

Tubular thermowell for low to medium stress, according to DIN 43722, Type 2, without process connection, without extension, plug-in or use with move-able compression fittings


Catalog Excerpt
User Manual

Tubular thermowell, low to medium stress, according to DIN 43722, Type 2F, with flange, with extension


Catalog Excerpt
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Thermometerschutzrohr aus Rohrmaterial, geringe bis mittlere Beanspruchung, nach DIN 43772, Typ 2G, verschraubte Ausführung, mit Verlängerung


Catalog Excerpt
User Manual

Tubular thermowell, low to medium stress, Type 2N similar to DIN 43722, screwed design, without extension, for maximum process temperatures of 100 °C


Catalog Excerpt
User Manual

Tubular thermowell for low to medium stress, according to DIN 43722, Type 3, without process connection, improved response time, plug-in or use with moveable compression fittings


Catalog Excerpt
User Manual

Tubular thermowell, low to medium stress, according to DIN 43722, Type 3F, with flange, with extension


Catalog Excerpt
User Manual

Tubular thermowell, low to medium stress, according to DIN 43722, Type 3G, screwed design, with extension


Catalog Excerpt
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Barstock thermowell for medium to extreme stress, according to DIN 43722, Type 4, for welding in, Type 4F with flange, with extension


Catalog Excerpt
User Manual

Temperature sensors for installation in existing thermowells, suitable for ther-mowells according to DIN 43772 as well as ASME B40.9-2001 with extension European or American types


Catalog Excerpt
User Manual

  • TÜV zertifizierte SIL-Version für Schutzeinrichtungen entwickelt nach IEC 61508 (Option)
  • Einsatz in Sicherheitsanwendungen bis SIL 2 (einzelnes Gerät) und SIL 3 (redundante Verschaltung)
  • Konfigurierbar mit nahezu jedem offenen Soft- und Hardwaretool
  • Universell für den Anschluss von 1 oder 2 Sensoren - Widerstandsthermometer, Widerstandssensor - Thermoelement, mV-Sensor - Potentiometer
  • Signalisierung gemäß NAMUR NE43, Sensorbruchüberwachung gemäß NE89, EMV gemäß NE21
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Bedienungsanleitung

  • Sensor ranges from -196 ... +600 °C (-320 ... +1.112 °F)
  • For mounting in all standard thermowell designs
  • Spring-loaded measuring insert (replaceable)
  • Pt100 or Pt1000 sensors
  • Explosion-protected versions
 
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User Manual
User Manual
User Manual
User Manual

  • Versions to customer specification
  • Various process connections
  • Short response times
  • Robust, vibration-resistant design
  • Various thermocouple types and electrical connection types
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Datasheet
User Manual
User Manual
User Manual

  • Double-diaphragm system to ensure the separation of the process and the pressure measuring instrument
  • Process connection with flange to provide for direct threaded connection
  • All welded design with flush diaphragm
  • Wetted parts from Hastelloy
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User Manual

  • Excellent load-cycle stability and shock resistance
  • All stainless steel construction
  • German Lloyd approva
  • Scale ranges up to 0 … 1,600 bar
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User Manual
User Manual
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User Manual

  • Safety version with solid baffle wall designed in compliance with the requirements and test conditions of EN 837-1
  • Excellent load-cycle stability and shock resistance
  • Completely from stainless steel
  • Scale ranges from 0 … 0.6 to 0 … 1,600 bar
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User Manual
User Manual
User Manual
User Manual

Model CPH6300-S1 (1-channel version) Model CPH6300-S2 (2-channel version)

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User Manual

  • Application ranges from -200 ... +600 °C [-328 ... +1,112 °F]
  • Made of mineral-insulated sheathed cable
  • Explosion-protected versions (option)



Datasheet
User Manual
User Manual

  • Very compact design, high vibration resistance and fast response time
  • With direct sensor output (Pt100, Pt1000 in 2-, 3- or 4-wire connection) or integrated transmitter with 4 ... 20 mA output signal
  • Integrated transmitter is individually parameterisable with free-of-charge WIKAsoft-TT PC configuration software
  • Sensor element with accuracy class A per IEC 60751


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User Manual

  • Total measurement uncertainty up to 0.025 % of reading
  • Upgradeable using CPS5800/CPM5800 to provide increased accuracy to 0.006 %
  • Direct replacement of original DH-Budenberg 580 series
  • Factory calibration included as standard, traceable to national standards, with UKAS calibration possible as an option
  • Masses manufactured from stainless steel, can be adjusted to local gravity
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User Manual

  • Cost-effective “2 in 1” temperature measurement
  • Compact design
  • Application ranges from -200 ... +700 °C
  • “Plug-and-play”, thus no transmitter configuration necessary



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User Manual

  • For many variants of temperature transmitters including field transmitter
  • For mounting in all standard thermowell designs
  • Spring-loaded measuring insert (replaceable)
  • Explosion-protected versions (option)


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User Manual
User Manual
User Manual
User Manual

  • Application ranges up to max. 1,600 °C / 2,912 °F (DIN EN 50446)
  • Thermowell made of heat-resistant steel or ceramic, also with ceramic inner tube
  • Support tube of carbon steel
  • Gastight process connection
  • Coating (optional)
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User Manual
User Manual

  • Application ranges from -40 ... +1,200 °C (-40 ... +2,192 °F)
  • For many variants of temperature transmitters including field transmitter
  • For mounting in all standard thermowell designs
  • Spring-loaded measuring insert (replaceable)
  • Explosion-protected versions
Datasheet
User Manual
User Manual
User Manual

Special Features

  • Total measurement uncertainty to 0.006 % of reading
  • Extremely flexible instrument with a wide range of single and dual-range piston-cylinder systems
  • Dual-range piston-cylinder systems with fully automated changing between ranges
  • Factory calibration includes traceability to national standards, as standard, with UKAS calibration possible as an option
  • Fast and safe replacement of the piston-cylinder system via patented ConTect quick-release system as an option
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User Manual

  • Scale ranges from -200 ... +700 °C [-328 ... 1.292 °F]
  • Fast response behaviour
  • Case and stem from stainless steel
  • Various connection and case mounting designs
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User Manual

  • Installation of head-mounted transmitters in the connection housing possible
  • Wide variety of different electrical connections, process connections, materials and contact separations
  • Programmable and configurable head-mounted transmitters for 4 ... 20 mA, HART®, PROFIBUS® PA or FOUNDATION™ Fieldbus field signals
  • Explosion-protected versions
  • Temperature ranges from -100 … +350 °C
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Datenblatt
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Bedienungsanleitung
Bedienungsanleitung
Bedienungsanleitung

  • Patent applied for, among others DE Patent No. 102013215351
  • New calibration concept simplifies certificate generation
  • Easy operation and set up
  • Acquisition and automatic correction of all critical influencing factors, to increase the accuracy of the measurement
  • Can also be used with other calibration instruments and WIKA-Cal software
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User Manual

  • Total measurement uncertainty starting from 0.015 ... 0.006 % of reading
  • Four different piston-cylinder systems available for ranges ±1 bar, 0.1 ... 7 bar, 0.2 ... 25 bar, 1 ... 70 bar and 1 ... 120 bar, or also for ranges in lb/in² and kPa
  • Stable aluminium base with a strong impact-resistant ABS cover for heavy industrial use combined with compact dimensions and light weight
  • Interchangeable pistons and mass sets for each model, mass sets manufactured from stainless steel
  • Factory calibration includes traceability to national standards, as standard; with UKAS calibration possible as an option
Datasheet

  • Continuous level measurement on the outside of the bypass
  • 2-wire technology 4 ... 20 mA
  • Measured value output via digital interface and a selectable measured value as analogue signal
  • Case from stainless steel (display from glass)
  • Magnetostrictive level measuring instrument with high resolution
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User Manual
User Manual
User Manual

For applications in hazardous areas



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User Manual

  • Suitable for liquid, gas and steam flow measurement
  • Accuracy ≤ ±0.5 % of actual flow rate
  • Repeatability of measurement 0.1 %
  • Lowest pressure loss in the family of primary flow elements
  • Calibration may be performed if required
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User Manual

  • Process- and procedure-specific production
  • Operating limits: - Operating temperature: T = -196 ... +450 °C - Operating pressure: P = Vacuum up to 400 bar
  • Wide variety of different process connections and materials
  • Mounting of level sensors and guided wave radars possible as an option
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User Manual

  • Accuracy: 0.020 % FS
  • Measuring range: 25 mbar ... 1,001 bar [10 inH2O ... 15,015 psi]
  • Temperature compensation: 0 ... 50 °C [32 ... 122 °F]
  • RS-232 or RS-485 communication
  • Rugged and compact design
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User Manual

  • Nominal sizes 63, 80, 100, 160 mm
  • Robust, hermetically sealed case
  • External reset for setting the reference temperature
  • Dished dial (anti-parallax) for ease of reading
  • Adjustable stem and dial version enables optimal process connection


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User Manual

  • Compact and space-saving design
  • Output signal 4 ... 20 mA (NAMUR NE43) or HART® ver. 6
  • Operating limits: - Operating temperature: T = -40 ... +250 °C - Operating pressure: P = Vacuum to 40 bar - Limit density: ρ ≥ 580 kg/m3
  • Explosion-protected version (option)
  • Vibration resistant version (option)
Datenblatt
Bedienungsanleitung
Bedienungsanleitung

  • Excellent load-cycle stability and shock resistance
  • Safety version with solid baffle wall designed in compliance with the requirements and test conditions of ASME B 40.100
  • With case filling (model 233.34) for applications with high dynamic pressure loads and vibrations
  • Scale ranges from 0 … 10 to 0 … 30,000 psi [0 ... 0.6 to 0 ... 2,000 bar]
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User Manual

  • Overpressure range is indicated completely on scale
  • Safety version with solid baffle wall (Solidfront) designed in compliance with the requirements of EN 837-1 and ASME B40.100
  • With case filling (model 233.36) for applications with high dynamic pressure loads and vibrations
  • Measuring ranges from 0 … 0.6 bis 0 … 40 bar [0 ... 10 to 0 ...600 psi]
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User Manual
User Manual

  • Up to 4 switch contacts per instrument
  • Also available with case filling for high dynamic pressure loads or vibrations
  • Instruments with inductive contacts for use in hazardous areas
  • Instruments with contacts for PLC applications
  • Instruments optionally available in safety version S3 per EN 837
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User Manual
User Manual

  • Safety pressure gauge with solid baffle wall designed in compliance with the requirements and test conditions of EN 837-1
  • Completely from stainless steel
  • Knife edge pointer for optimal accuracy of reading
  • Wear-resistant precision movement from stainless steel
  • Scale ranges from 0 … 0.6 to 0 … 1,600 bar [0 ... 10 psi to 0 ... 20,000 psi]
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User Manual
User Manual

  • Completely from stainless steel
  • Knife edge pointer for optimal accuracy of reading
  • Wear-resistant precision movement from stainless steel
  • Scale ranges from 0 … 0.6 to 0 … 1,600 bar [0 ... 10 psi to 0 ... 20,000 psi]
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User Manual
User Manual

  • Compatible with switch contacts
  • Threaded or open flange process connection
  • Scale ranges from 0 … 16 mbar
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User Manual

  • High overload safety, optionally up to 40, 100 or 400 bar, due to the metallic pressure element limit stop, without liquid-filled measuring cell
  • Wide choice of special materials
  • Also available with liquid-filled case for high dynamic pressure loads or vibrations
  • Instruments with inductive contacts for use in hazardous areas
  • Instruments with switch contact for PLC applications
Datasheet
User Manual
User Manual

  • Case and wetted parts from stainless steel
  • Wide choice of special materials
  • High overload safety up to the 10-fold full scale value
  • Process connection thread or open flange
  • Scale ranges from 0 … 16 mbar
Datasheet
User Manual
User Manual
User Manual

  • Differential pressure measuring ranges from 0 … 16 mbar
  • High working pressure (static pressure) and high overload safety up to 40 bar
  • Also available with liquid-filled case for high dynamic pressure loads or vibrations
  • Instruments with inductive contacts for use in hazardous areas
  • Instruments with switch contact for PLC applications
Datasheet
User Manual
User Manual

  • Robust, hermetically sealed case
  • Accuracy: ±1 % of full scale value ASME B40.200 (grade A)
  • External reset for reference temperature adjustment
  • Dished dial (anti-parallax) for ease of reading
  • Adjustable stem and dial version enables optimal process connection
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User Manual

  • High overload safety
  • Long service life due to metal media chamber sealing and the extremely gas-tight material of the reference chamber
  • Instruments compatible with switch contacts
  • Scale ranges from 0 … 25 mbar absolute pressure
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User Manual
User Manual

  • Scale ranges from -70 ... +600 °C
  • For extreme ambient temperatures
  • Maintenance-friendly bayonet case
  • All stainless steel construction
  • Individual stem length from 63 ... 1,000 mm



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User Manual
User Manual

  • Zero point correction in front
  • Completely from stainless steel
  • With liquid-filled case for applications with high dynamic pressure loads and vibrations (model 633.50)
  • Low scale ranges from 0 ... 2.5 mbar to 0 ... 600 mbar or 0 ... 1 inH2O to 0 ... 240 inH2O
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User Manual
User Manual

  • High overload safety up to 50 x full scale value
  • Scale ranges from 0 … 2.5 mbar
  • Measuring chamber protected against unauthorised intervention
  • Low measuring error and influence on function from medium pollution
Datasheet
User Manual
User Manual

  • High overload safety up to 50 x full scale value
  • High reliability and long service life
  • Up to 4 switch contacts per instrument
  • Instruments with inductive contacts for use in hazardous areas
  • Instruments with switch contact for PLC applications
Datasheet
User Manual
User Manual

  • Differential pressure measuring ranges from 0 ... 16 mbar to 0 ... 40 bar or 0 ...10 inH2O to 0 ... 600 psi
  • High operating pressure (static pressure) up to 40 bar [600 psi]
  • High overload safety up to 40 bar [600 psi]
  • Models 732.31 and 733.31: Case with safety level “S3” per EN 837
  • All-welded media chamber
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User Manual
User Manual

  • Differential pressure measuring ranges from -1 … +30 bar [-14.5 ... 435 psi] to 0 ... 40 bar [0 ... 580 psi]
  • High working pressure (static pressure) and high overload safety, selectable 40 bar [580 psi], 100 bar [1,450 psi], 250 bar [3,625 psi], 400 bar [5,800 psi] and 650 bar [9,425 psi]
  • The transmission fluid in the measuring chamber dampens the indicator in case of high changes of the rate of pressure
  • Model 73x.14: Stainless steel version
  • Model 76x.14: Version with special materials
Datasheet
User Manual
User Manual

  • Differential pressure measuring ranges from 0 … 60 mbar
  • High working pressure (static pressure) and high overload safety, selectable up to 40, 100, 250 or 400 bar
  • Measuring cell liquid dampening against rapid pressure changes
  • Instruments with inductive contacts for use in hazardous areas
  • Instruments with switch contact for PLC applications
Datasheet
User Manual
User Manual

  • Simple mounting of the illumination system
  • Illumination types available for different applications
  • Operating temperature: depending on illumination method
  • Matching to the respective length of the glass indicator
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User Manual

  • Completely round, no corners and edges
  • For direct installation between two flanges
  • Wide choice of special materials
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User Manual

  • Completely round, no corners and edges
  • For direct installation between two flanges
  • Wide choice of special materials
Datasheet
User Manual

  • Ergonomic handling through the smooth-running, internally operating, precision spindle
  • Integrated oil reservoir
  • Removable star handle
  • Freely rotating test connections (i.e. measuring instruments can be aligned)
  • Integrated priming pump for large test volumes
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User Manual

  • Process connection with thread
  • Version with internal diaphragm, diaphragm seal parts screwed together
  • Large selection of process connections and materials
  • Flushing connections optionally available
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User Manual

  • Flange with internal welded diaphragm
  • Mounting to measuring instruments for low pressures, also for differential pressure
  • Flushing connections optionally available
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User Manual

  • Flush diaphragm
  • Process connection to provide for direct threaded connection with block flange or saddle flange
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User Manual

  • Flange with flush welded diaphragm
  • Common standards and nominal widths available
  • Wide variety of different materials and material combinations

 

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User Manual

  • Compact cell-type
  • Intermediate flange with flush diaphragm
  • Common standards and nominal widths available
  • Wide variety of different materials and material combinations
  • Instrument connection via radial gauge adapter
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User Manual

  • High pressures up to PN 400 / class 2.500
  • Flange with internal welded diaphragm
  • Small process connections
  • Flushing connections optionally available

 

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User Manual

  • Flange with extended welded diaphragm
  • Common standards and nominal widths available
  • When special materials are selected, all wetted parts are made of the selected material
  • Robust, all welded design
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User Manual

  • Process connection with thread
  • Version with internal diaphragm, diaphragm seal parts fully welded
  • Large selection of process connections and materials
  • Flushing connections optionally available
  • High pressures up to 1,000 bar [14,500 psi] can be achieved
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User Manual

  • Intermediate flange (diaphragm seal cell) with extended diaphragm
  • Versions for all common standards and nominal widths available
  • When special materials are selected, all wetted parts are made of the selected material
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User Manual

  • Threaded connection for screwing in directly
  • Flush diaphragm with compact dimensions
  • High pressures for the process industry
  • Version with protective plate for increased wear resistance
  • Vacuum measuring ranges
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User Manual

  • Internal diaphragm with large working volume
  • Special materials available
  • Low temperature error due to large diaphragm diameter (realisation of low measuring ranges possible)
  • Wide temperature application range due to large working volume
  • Integrated flushing connections (optional)
Datasheet
User Manual

  • Total measurement uncertainty to 0.008 % of reading
  • Factory calibration included as standard, traceable to national standards; with DKD/DAkkS calibration possible as an option
  • High long-term stability with recommended recalibration interval every five years
  • Masses manufactured from stainless steel and aluminium, can be adjusted to local gravity
  • Quick and safe replacement of the piston-cylinder system for measuring range changes via patented ConTect quickrelease system as an option
Datasheet
Bedienungsanleitung

  • Sensor ranges up to max. 250 °C (482 °F)
  • Option: 600 °C (1,112 °F)
  • Easily exchanged, no thermowell necessary
  • For screw-fitting, welding or using a tightening strap
  • Cable from PVC, silicone or PTFE
  • Explosion-protected versions


Datasheet
User Manual
User Manual
User Manual
User Manual

  • LC display
  • Variants with sensors for insertion, mounting into a thermowell or with contact bulb for mounting on a pipe surface
  • For all standard thermowell designs
  • Measuring range -40 ... +450 °C (-40 ... +842 °F)
  • With automatic measuring range changeover (Autorange)
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User Manual

  • Good price/performance ratio
  • Wetted parts made of special material
  • Non-wetted flange from 316/316L stainless steel
  • Thermowell welded to one unit
  • Possible thermowell forms: - tapered, straight or stepped - "Quill Tip" version (with open tip)

Datasheet (Model TW10-P)
Datasheet (Model TW10-F, Models TW10-P and TW10-R)
Datasheet (ScrutonWell® design)
User Manual

  • Connection between flange and thermowell in threadwelded design
  • Model TW10-S: No directly wetted welded joints (standard)
  • Model TW10-B: Additional weld seam on the process side (sealing joint)
  • Coating for corrosive or abrasive process loads
  • Possible thermowell forms: - tapered, straight or stepped - “Quill Tip” version (with open tip)
Datasheet (Models TW10-S, TW10-B)
Datasheet (ScrutonWell® design)
User Manual

  • International standard
  • Possible thermowell forms: - tapered, straight or stepped - "Quill Tip" version (with open tip)
Datasheet
User Manual

  • Different dimensions for standardised welding sockets
  • International standard
  • Possible thermowell forms: - Design TW20-A: tapered - Design TW20-B: straight - Design TW20-C: stepped - “Quill Tip” version (with open tip)
Datasheet
User Manual

  • Variable welding diameters
  • International standard
  • Possible thermowell forms: - Design TW25-A: tapered - Design TW25-B: straight - Design TW25-C: stepped - "Quill Tip" version (with open tip)
Datasheet
User Manual

  • Heavy-duty design
  • Solid machined version without welding
  • Possible thermowell forms: Design TW30-A: tapered Design TW30-B: straight Design TW30-C: stepped
  • For lap flanges per ASME B16.5
Datasheet
User Manual

  • Pressure ranges: from 0 ... 25 mbar up to 0 ... 2,890 bar [0 ... 0.36 up to 0 ... 42,000 psi]
  • Accuracy down to 0.008 % of IS (IntelliScale)
  • External pressure ranges from 25 mbar ... 1,000 bar [0.36 ... 15,015 psi]
  • Precision 0.004 % FS
  • Removable/interchangeable sensors

Datasheet
User Manual

  • Ergonomic handling through the smooth-running, internally operating, precision spindle
  • Integrated oil reservoir
  • Removable star handle
  • Freely rotating test connections (i.e. measuring instruments can be aligned)
  • Integrated priming pump for large test volumes
Datenblatt
Bedienungsanleitung

  • Electropolished case
  • Ingress protection IP 65, NEMA 4
  • Ambient temperature -40 ... +85 °C
  • 1 or 2 independent switch points, high contact rating up to 15 A / AC 220 V
  • Directly connected or via capillary (up to 10 m capillary)




Datasheet
User Manual