Your browser does not support the HTML5 canvas element. Please use an up-to-date browser.

To view on Desktop

  • Click and drag using your mouse to rotate the model.
  • Zoom in and out using the scroll wheel on your mouse.
  • Right click and drag or hold CTRL + move your mouse to pan the model horizontally and vertically.

To view on a Mobile Device

  • To move the model around, use your finger to swipe left, right, up or down.
  • To zoom in and out on the model, pinch your fingers together or apart on the screen.
  • If you want to rotate the model, use two fingers to twist the screen.

Loading 3D model...

71 Series Pilot Operated Pressure Relief Valve

Sarasin-RSBD®

71 Series Pilot Operated Pressure Relief Valve

The Sarasin-RSBD® 71 Series design has been developed to protect the piping or vessel against thermal expansion overpressure in gas service, keeping operating pressure close to the set pressure.

The Sarasin-RSBD® 71 Series design is based on a thermal expansion spring-loaded body design (9 Series). The Sarasin-RSBD® 71 Series are an engineered, custom-made design that has been industrialized and offers a full nozzle pilot operated pressure relief valve for use in industrial gas service:

- The full nozzle option insures body chemical protection
- In case of an upgraded process (higher back pressure or higher operating pressure) the customer can change from a spring loaded to pilot operated version, keeping the same center-to-face dimension.
- The full nozzle option includes integral wetted components which offer the advantage of removal for maintenance and replacement.

DESIGN STANDARDS

  • ASME BPVC Section XIII

  • API STD 520/527

  • ISO 4126

  • Directive 2014/68/UE

  • ATEX 94/9/EC

  • EAC TR CU 10/12/32

  • SELO TS

  • Marine standards

DESIGN RATINGS

  • ASME & API Class 150 to 2500

  • API Class 5K & 10K (customized)

SIZE RANGE & DIMENSIONS

  • 15 - 40mm (0.5 - 1.5 inches)

PRESSURE RANGE

  • Up to 431 bar (6,251 psig) with standard ASME class

TEMPERATURE RANGE

  • Reaching -60ºC (-76°F) cryogenic levels to 327ºC (620°F)

CAPACITY

  • Individually calculated and selected for each process application

SEAT TIGHTNESS

  • 95%

MATERIALS

  • Carbon Steel

  • Austenitic Stainless Steels

Downloads