CH10, CH20, CH30

BMD Chambers & Domes

The CH10, CH20 and CH30 chambers are designed to be used with the series LC10 liquid level controller but may also be used with other types of level switches and controllers.

  • Two sizes of horizontal chambers CH10 and CH20
  • Full line of vertical chambers CH30
  • Upper dome portion of the CH30 can be ordered separately for top entry into vessel
  • CH30 vertical chambers are fully customizable to meet process piping sizes and connections

FW Murphy is the exclusive BMD distributor for new equipment packages. 

  • Overview
  • Specifications
  • Diagrams
  • Literature

The CH10, CH20 and CH30 chambers offer the benefit of isolating the process fluid from the turbulence of the main vessel making for a more accurate level measurement. They are also an excellent choice where the main vessel’s internal geometry may block the direct installation of a level controller.

CH10 and CH20

  • Sizes: 
    • Controller Connection: 2” NPT
    • Process Connection: 1” NPT
  • Pressure Rating: 2000 psi
  • Materials: Carbon steel or stainless (optional)


  • Sizes:
    • Chamber: 3” and 4”
    • Controller Connection: 2” NPT or flanged
    • Process Connection: 1”, 1 1/2” and 2” NPT
  • Pressure Rating: 
    • Flanged: Up to 1500 class
    • Threaded: 600 class standard, higher rating available by request
  • Materials: Carbon steel or stainless (optional)

CH10 Horizontal Chambers


CH20 Horizontal Chambers


CH30 Horizontal Chambers & NPT Dome


CH30 Horizontal Chambers & Flanged Dome

For more information about this product, you can download the related literature here:

Sales Bulletin (2015363; revision date – 10/2022)