Quick coupling system for diaphragm seal pressure measurement

KROHNE has expanded its pressure measurement portfolio with REconnect, a quick coupling system designed for diaphragm seal systems connected via capillaries. The solution enables separation and reconnection of pressure or differential pressure transmitters without interrupting ongoing processes, supporting maintenance and verification in continuous industrial operations.

Design for safe disconnection under process conditions
REconnect is installed between the transmitter and the process connection. It allows capillary systems to be disconnected quickly and without leakage, even at pressurized measuring points. The system prevents loss of filling fluid and avoids contamination caused by air ingress, maintaining measurement integrity.

The coupling mechanism is based on a two-piece ball valve design. In the closed state, both sides remain hydraulically connected and locked. When opened, the system allows axial separation while maintaining pressure-tight sealing on both sides.

Measurement stability and process reliability
Unlike conventional hydraulic connectors, the design prevents displacement of the internal oil volume and eliminates the risk of air entering the system. These factors are critical in maintaining stable measurement conditions, as volume shifts or air inclusion can lead to signal drift and inaccurate readings.

The system is particularly suited for diaphragm seal configurations where transmitters are connected via capillary tubes, ensuring consistent performance during service interventions.

Compatibility and application areas
REconnect is compatible with a range of OPTIBAR pressure transmitters and diaphragm seal systems. It is designed for use in applications requiring compliance with explosion protection (Ex) and functional safety (SIL) standards.

Typical application areas include hygienic processes in the food and beverage industry, handling of toxic or sensitive media in pharmaceutical production, and complex installations in the chemical industry.

Maintenance efficiency and reduced downtime
The system enables maintenance, repair, and calibration tasks to be carried out without dismantling the entire installation. Many interventions can be performed by a single technician, reducing labor requirements.

Calibration procedures can be conducted without process interruption, minimizing downtime and improving operational efficiency. By simplifying service workflows, REconnect supports more efficient maintenance strategies in process industries.

Edited by Maria Brueva, Induportals editor – adapted by AI.

www.krohne.com