PRV57-ISL (1.5-5.0)  1¼" PN40 Pilot-Operated Pressure Reducing Valve

Keeping downstream pressure stable when upstream conditions are constantly shifting is one of the most demanding challenges in industrial process control. The PRV57-ISL by Valsteam ADCA is built to handle exactly that, automatically reducing high incoming steam or gas pressures and holding them steady within a precise 1.5 to 5.0 bar range, regardless of fluctuations on the supply side.

Its pilot operated, indirect acting piston design gives it a significant advantage over direct acting alternatives: tighter regulation accuracy and the ability to maintain controlled output pressure even when downstream flow drops to zero. For processing equipment, heat exchangers, and sterilisers that require consistent steam pressure to function safely and efficiently, that level of reliability is not optional, it is essential.

Rated to 40 bar nominal flange and body pressure, the PRV57-ISL is equally at home managing steam lines as it is regulating air, nitrogen, or other compatible gases across factory automation systems. Its robust construction is designed for continuous industrial use, reducing the risk of pressure-related downtime, equipment damage, or safety incidents.

Summary: 

• Downstream pressure range: 1.5 to 5.0 bar
• Maximum body/flange pressure rating: PN40 (40 bar)
• Connection size: 1¼"
• Actuation type: Pilot-operated (indirect acting) piston
• Compatible media: Steam, air, nitrogen, and other compatible gases

Applications: 
Common applications include;

• Heat exchangers
• Sterilisers
• Processing equipment
• Factory automation gas lines