ETNA Pressure Switch 3-11 Bar with Relief 1/2”
Reliable pressure control and energy savings for booster and pump systems.
ETNA Pressure Switch 3-11 Bar is designed for continuous start-stop operation in pump automation; in addition, its integrated relief valve provides safety under overpressure. It starts the motor at the set low pressure and stops it automatically at the high level, moreover. Consequently, it is ideal for reliable pressure control and energy savings.
Silver-alloy microswitch contacts deliver spark-free switching, while the spring-loaded contact mechanism controls water pressure precisely. The graduated adjustment range from 3 to 11 Bar keeps the system stable within its correct operating band. A shock-resistant polymer body offers superior resistance to industrial vibration. The 1/2” BSP brass connection, IP54 protection, 60°C maximum operating temperature, and S1 continuous duty suit demanding installations.
ETNA Pressure Switch 3-11 Bar — Technical Specifications
This switch is commonly selected for booster and water pump automation panels, and it also provides reliable operation in water storage and pressurization systems. Furthermore, it protects compressor lines and pneumatic systems against overpressure. As a result, seamless integration is possible in industrial plumbing and irrigation applications. In particular, it is ideal for clean water service.
Key Advantages
- Precise control: silver-alloy microswitch provides spark-free switching
- Easy installation: quick setup with 1/2” BSP connection and adapters
- Safety: integrated relief valve provides automatic protection under overpressure
Applications
- Start-stop control in booster and water pump automation panels
- Pressure regulation in water storage and pressurization systems
- Overpressure safety in compressor lines and pneumatic systems
ETNA Pressure Switch 3-11 Bar is therefore a reliable choice for industrial plumbing engineers. ORFA Industrial has supplied technical support and fast delivery as an authorized distributor since 1985. ORFA supplies worldwide and provides technical support; our expert team can assist with installation and spare parts.
ORFA INDUSTRIAL PRODUCTS INDUSTRY AND TRADE INC.
Your Reliable Partner in Industrial Flow Technologies


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