BMD Pressure Pilots

The PC48 is a rugged, economical pressure control pilot. It can be used anywhere pressure control of high pressure gas is required.

  • May serve as either back pressure regulator or pressure-reducing regulator, when used in conjunction with a control valve
  • Can be used to send a signal when the sense pressure goes above or falls below a given set point
  • Direct-acting option available
  • NACE option available

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

  • Overview
  • Specifications
  • Diagrams
  • Literature

The PC48 functions by sensing a high-pressure signal and outputting a low-pressure signal when the high-pressure signal falls above the set point. The direct-acting option works by outputting a low-pressure signal when the high-pressure signal rises above the set point.

  • Connections: 1/4” female NPT
  • Temperature Range: -20° F to 400° F (-28° C to 204° C)
  • Set Pressure Range: 5 to 300 psi
  • Sensitivity: 1 psi sense pressure change corresponds to roughly 8 psi output pressure change
  • Weight: 16 lbs
  • Materials:
    • Body and Base: Steel
    • Bonnet: Ductile iron
    • Seats: Stainless steel
    • Main Spring: Carbon steel
  • Diaphragm: Nylon reinforced Buna, nylon reinforced Viton® (optional)
  • Seals: Buna, Viton® (optional)

PC48 Reverse Dimensions

PC48 Direct Dimensions

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

Sales Bulletin (2015361; revision date – 09/2020)