ENTECH DRV-BN Nozzle Check Valve | SLB


Nozzle check valve

Operator inspecting a check valve

The DRV-BN nozzle check valve is a large-bore valve designed for compressor and pumping stations from 16 in [400 mm] in diameter and larger.

In this size range, the ENTECH valve line incorporates

  • annular ring design that reduces the weight of the disc to avoid any fatigue phenomena and significantly improve valve response time to pipeline flow changes
  • centralized single-coil spring mechanism as the most consistent spring-force design, which is stable and responds rapidly to flow variation
  • flowspacer that allows the valve to be fully customizable to specific service and installation conditions and easily reconfigurable in case of potential changes of customer plant flow performances over the years.
ENTECH DRV-BN Nozzle Check Valve
Nozzle check valve

The DRV-BN design also provides

  • nonslam closure
  • metal seating
  • fast closing
  • spring-loaded disc that allows mounting in any orientation
  • low pressure drop
  • no scheduled maintenance
  • tight shutoff.