Professional English Translation of Fire Protection Low-Pressure Switch Specifications 

Product Identification‌

Designation‌: Fire Protection Low-Pressure Switch

Model Range‌: DN50-DN200

Mechanical Specifications‌

Connection Type‌: Standard flange connection

Body Material‌: Ductile iron (valve body), plastic housing (gauge head)

Electrical Parameters‌

Power Supply‌: 24V DC

Functional Characteristics‌

Compliance‌: Meets 2014 Fire Protection Code requirements for installation on fire pipelines

Control Logic‌: Automates pump start/stop through:

Pressure sensor signal feedback

Relay signal conversion for fire pump activation

Media Compatibility‌: Suitable for oil, gas, and water measurement

Performance Metrics‌

Accuracy‌: High precision (specific values per applicable standards)

Response‌: Rapid actuation meeting code automation requirements

Adjustability‌:

Configurable flow rate thresholds

NO/NC (Normally Open/Normally Closed) contact configurability

Installation Notes‌

Operation‌: Simplified user interface

Mounting‌: Designed for field serviceability