Differential Pressure Regulator Fischer DS21 | Fischer

Key Features: Differential Pressure Regulator Fischer DS21

The Fischer DS21 is a combined measuring and switching device for differential pressure, overpressure, and partial vacuum in neutral gaseous and liquid media, engineered for tough conditions like pressure surges, vibrations, and frequent switching. Covers ranges from 0…400 mbar to 0…6 bar with 16 bar static working pressure and overpressure protection up to 25 bar (higher optional). Adjustable contacts with high repeatability and long service life, rugged construction with adaptable diaphragm and pressure chamber materials. Features integrated visual indication and potential-free contacts for direct control. Approved by Germanischer Lloyd and compliant with standards like DIN 32727 for heat transfer flow. As distributor at Garma we highlight its proven reliability, excellent repeatability, and industrial versatility, positioning it as one of the best solutions in the market for differential pressure regulation and switching with local indication in critical environments.

Main Specifications: Differential Pressure Regulator Fischer DS21

• Measuring range: 0…400 mbar to 0…6 bar
• Static working pressure: 16 bar
• Overpressure protection: up to 25 bar
• Contacts: Adjustable with high repeatability
• Materials: Pressure chamber and diaphragm in different materials per application
• Applications: Sanitary industry and heating systems

Applications and Benefits: Differential Pressure Regulator Fischer DS21

Control in Heating and Heat Transfer Systems: The DS21 regulates differential pressure in heating circuits, boilers, and thermal oil systems per DIN 32727, ensuring stable flow and overpressure protection as one of the most reliable market options for regulatory compliance.

Benefits in Sanitary and Hygienic Processes: Adaptable materials and rugged build ensure safe operation in regulated environments, with precise and repeatable switching for sensitive processes without frequent maintenance or downtime.

Advantages in High-Pressure Applications: Superior resistance to pressure surges, vibrations, and frequent switching minimizes failures and operational costs in industrial lines with neutral or mildly aggressive media.

Competitive Potential: With Germanischer Lloyd approval, long-life adjustable contacts, and proven German design, the DS21 excels in heating, sanitation, light chemical industry, and energy plants, drawing inquiries for its durability, accuracy, and outstanding value in differential pressure regulators with integrated indication.