The PR4513 is a BSP screwed all stainless steel pressure sustaining valve that’s direct acting and available in sizes from1/2" to 22.

Available in two adjustment ranges of 1-5 bar and 4-10 bar.

The maximum inlet pressure is 25 bar (test pressure 35 bar). The valve is suitable for air, water light oil and other flowing media, that has a viscosity of less than 40 centipoise. 

Sustaining or back pressure valves are designed to maintain a pre set back pressure in a system (inlet or upstream pressure). The valve ensures pressure does not fall below the set range and therefore maintains critical systems upstream.

Key Features:

• Direct Acting
• Stainless Steel Body
• Gauge Included
• NBR or Viton Seals
• 1/2" to 2"
• Screwed BSP
• Adjustment Pressure: 1-5 Bar & 4-10 Bar
• Maximum pressure: 25 Bar
• Temperature: -15°C to 80°C

Datasheet:

 Stainless Steel Pressure Sustaining Valve - BSP Datasheet