Retractex B Manual/Pneumatic Retractable Housing
Compact Design
Only 36mm Stroke
Excellent Reliability
Superior Cleaning
Patented HyCIP Design
Sensor & Relevant Seals
Certified Safety
ATEX, IECEx, UKEx, EAC Ex
Safe Operations
Lasting Reliability
Keep your critical production steps on target and on schedule with the dependable Retractex B. When used with our sensors for process analytics, this manual or pneumatic retractable housing is designed for long life with minimal maintenance.
Use case
How It's Used
Long-Term Photobioreactor Monitoring
In the MELiSSA Pilot Plant, the Retractex B is used with a Dencytee sensor for online turbidity monitoring in a photobioreactor cultivating Limnospira indica (Spirulina). This setup enables continuous oxygen and food production. The sensor provides real-time data to optimize culture performance and predict morphology variations, which are critical for long-term space missions.
References
Application Note - Continuous Cyanobacteria - Limnospora (Spirulina) Monitoring in the MELiSSA Loop using Dencytee
Drift free long term biomass monitoring for better…
Built for Critical Applications
Retractex B is a compact retractable housing for use in sanitary applications throughout biotechnology, food & beverage, and pharmaceutical industries. This stainless steel sensor housing supports 12 mm sensors, including our sensors for process analytics and offers a stroke of only 36 mm to minimize seal wear and support long-term reliability.
With manual or pneumatic retraction options, choice of sealing material, and a wide range of process and cleaning connections, the Retractex B is compatible with almost any vessel. Special designs are also available to satisfy unique needs.
Protective Features
Retractex B’s optional patented HyCIP cleaning option ensures that every portion of the chamber and all relevant seals are cleaned to prevent cross-contamination. At the same time, users are protected from harm through features such as a “no sensor – no insertion” and a window for visual seal inspections.
Featured Technologies
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Lasting and Reliable Operation
Lasting and Reliable Operation
With low seal wear, complete cleanability, and high durability, Retractex B is well-suited for demanding industrial environments.
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Remarkable Cleaning Efficiency
Remarkable Cleaning Efficiency
The patented HyCIP system uses the Ingold socket as a cleaning chamber, delivering exceptional in-place cleaning and sterilization.
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Enhanced Operator Safety
Enhanced Operator Safety
Integrated safety features, including “no sensor – no insertion” and a leakage-check window, protect operators and equipment.
Satisfies strict international quality requirements such as ATEX, IECEx, UKEx, and EAC Ex.
Accepts 225 mm long sensors with a 12 mm shaft diameter including our sensors for process analytics
When retracted, sensor and external wetted seals are fully cleaned and sterilized together.
Cleaning solution is directed between housing and socket, then up to the process seal to reach even remote chamber areas.
O-rings are positioned at 25, 50, and 55 mm to match most weld-in sockets.
Satisfies strict international quality requirements such as ATEX, IECEx, UKEx, and EAC Ex.
Retractex B Ordering Information
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Retractex B Specifications
Retractex B Specifications
Print- Wetted Parts
- Stainless Steel 1.4404
EPDM (FEP) or FKM (FEP)
- Pressure Range (bar g)
- 0 to 16 bar (< 120 °C), 10 bar (120 to 140 °C)
- For Sensors with
- 12 mm; PG13,5; 225 mm
- Surface Quality of Steel
- Ra < 0.8 μm (N6)
- ATEX approval
- II 1/2 G Ex ia IIC T4/T5/T6 Ga/Gb
II 1/2 D Ex ia IIIC T x °C Da/Db
- IECEx approval
- II 1/2 G Ex ia IIC T4/T5/T6 Ga/Gb
II 1/2 D Ex ia IIIC T x °C Da/Db
- UKEx approval
- II 1/2 G Ex ia IIC T4/T5/T6 Ga/Gb
II 1/2 D Ex ia IIIC T x °C Da/Db
- EAC Ex approval
- II 1/2 G Ex ia IIC T4/T5/T6 Ga/Gb
II 1/2 D Ex ia IIIC T x °C Da/Db
- Temperature Range
- Operating Temperature Range
- -10 – 140 °C
Support your entire workflow with Hamilton's integrated products.
Compatibility with Hamilton Devices
RetractoControl 2
By automating retraction and cleaning of sensors in our Retractex retractable sensor housings, the RetractoControl 2 control system saves valuable time in process workflows. Customizable settings support your routine cleaning requirements so that you can optimize sensor performance to support a long sensor life.
Retractex B Resources
Browse app notes, user guides, specification documents, and more in our Knowledge Center.
Browse app notes, user guides, specification documents, and more in our Knowledge Center.
Browse app notes, user guides, specification documents, and more in our Knowledge Center.
Browse app notes, user guides, specification documents, and more in our Knowledge Center.
Services
Hamilton's Technical Support team is here to provide product trouble-shooting, repair, application support, virtual start-up support, and more.
Installation, set-up, and calibration support directly on-site. Our field service team ensures your sensors and cables are installed and functioning correctly.
Support for the qualification of Hamilton equipment including complete documentation. Readying your process for GMP manufacturing activities.
Preventative maintenance and regular service contracts. Schedule on-site service dates to ensure your sensors are properly maintained and your process is optimized.
Diagnosing and resolution of process system problems on-site. Finding the root cause and presenting a solution to fit your needs.
User trainings and on-site trainings for technicians. Tailored training ranging from basic operation to advanced calibration and maintenance.
Backed by world-class service and support.
For over 75 years, the Hamilton name has been recognized globally for its unwavering commitment to quality. That pledge extends to creating long-term customer partnerships. We're proud to offer in-depth training courses, on-site field support, custom product builds, and so much more.
Let's Talk
Connect with a Hamilton expert to discuss solutions for your workflow. We are here to enable your success.
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