Danfoss RT 116 Pressure Switch for Industrial and Utility Systems

A. Product Overview

The Danfoss RT 116 is part of the RT series of mechanical pressure switches intended for general industrial and marine applications. It features a pressure-controlled single-pole changeover (SPDT) contact system that enables dependable alarm and control functions based on actual system pressure.

RT pressure switches are known for their robust construction, high switching accuracy, and long service life. The RT 116 is commonly selected for medium-pressure applications where consistent pressure regulation and equipment protection are required across continuous-duty operations.

B. Working Principle

The RT 116 operates using a bellows-based mechanical pressure sensing element. Process pressure applied at the inlet connection acts on the bellows, causing axial movement of the main spindle. This movement actuates a snap-action SPDT contact system.

When the pressure reaches the set range value, the contacts change state. The switch resets when pressure crosses the set value plus or minus the mechanical differential, depending on configuration. This purely mechanical operating principle ensures reliable switching without dependence on electronics, making it suitable for vibration-prone and electrically noisy industrial environments.

C. Key Applications

• Industrial air and gas compressors

• Pump and pressure boosting systems

• Cooling water and circulation circuits

• Hydraulic utility pressure control

• Marine auxiliary and service systems

• General industrial alarm and control panels

D. Why Industries Use This Product

Industries use the RT 116 for its dependable pressure-based control and protection in medium-pressure systems. Inadequate pressure monitoring can result in compressor overload, pump damage, inefficient system operation, or unplanned downtime.

The RT 116 helps mitigate these risks by providing stable and repeatable switching for alarms or control actions. Its proven RT-series design supports long operational life, reduced maintenance intervention, and standardized use across multiple plants. Availability of marine approvals and safety-oriented configurations further supports its use in critical industrial installations.

E. Suitable Buyers

• Industrial OEMs and system builders

• Utility and water system integrators

• Marine equipment installers and shipyards

• Maintenance and reliability engineers

• Procurement teams sourcing standardized pressure switches

The RT 116 is commonly used for replacement in existing RT series installations and is widely accepted in retrofit and standardization projects.

Quick Answers

What is Danfoss RT 116?
Danfoss RT 116 is a mechanical pressure switch used for monitoring and controlling medium-pressure industrial and utility systems.

Where is Danfoss RT 116 used?
It is used in compressors, pumps, cooling circuits, utility systems, and marine auxiliary installations.

Why is Danfoss RT 116 required in industry?
It provides reliable pressure-based control and protection, helping prevent equipment damage and operational instability.

Who typically uses Danfoss RT 116?
OEMs, system integrators, maintenance teams, utility engineers, marine technicians, and industrial procurement professionals.

FAQ Section

Is Danfoss RT 116 suitable for medium-pressure industrial applications?
Yes. The RT 116 is designed for medium-pressure ranges and provides stable, repeatable switching for industrial and utility systems.

Can RT 116 be used for both alarm and control functions?
The SPDT contact system allows RT 116 to be used for alarm signaling as well as direct control of pumps, compressors, and auxiliary equipment.

Is RT 116 suitable for continuous-duty operation?
RT pressure switches are designed for long service life and high repeatability, making the RT 116 suitable for continuous industrial operation.

Can RT 116 replace other RT series pressure switches?
Yes. RT 116 is commonly used as a replacement in existing RT installations, subject to matching pressure range and application requirements.

Does RT 116 support standardized and safety-focused installations?
RT series pressure switches support standardized designs and are available with approvals and safety features suitable for critical industrial and marine installations.