M4 Knick holders and fittings provide the interface between sensors and the process for pH, ORP, dissolved oxygen and conductivity measurement. The range includes static, retractable and flow-through designs. These support immersion, inline and bypass installation across liquid processes.
In practice, these fittings are used where pressure, fouling or contamination make sensor access difficult. Retractable holders allow safe insertion and removal under pressure without shutting down the process. This reduces downtime and improves operator safety. Flow-through designs support stable conditions in bypass lines. Immersion installations provide a simple option for tanks and open vessels. Robust construction supports use in aggressive media. Selected models are available with CRN for Canadian installations.
Key applications
- Chemical and petrochemical process lines
- Water and wastewater treatment systems
- Pulp and paper process monitoring
- Power generation and boiler water control
- Installations requiring safe sensor maintenance under pressure
