QUESTIONS TO CONSIDER WHEN SELECTING A REGULATOR

Media (compatible with materials of construction)

  • Liquid or gas
  • Corrosive or non-corrosive
  • Purity ratings

Regulator Type

  • Pressure reducing
  • Back pressure
  • Vacuum actuated (Demand Flow)

Loading Method

  • Spring loaded (hand knob)
  • Dome loaded
  • Air actuated
  • Dome loaded with bias spring
  • Electronic

Sensing Element

  • Piston sensed
  • Diaphragm sensed (soft/stainless steel)

Stages

  • Single stage- pressure reduction accomplished in a single stage.
  • Two stage – for stable delivery pressures despite changes in supply pressure. (reduced decaying inlet characteristic/supply pressure effect)

Operating Pressures

  • Max inlet pressure
  • Range of fluctuation in the supply pressure
  • Desired outlet pressure
  • Amount of fluctuation permitted in the outlet pressure

Flow Capacity

  • Desired Cv / regulator flow capacity

Materials of Construction (weighing corrosion resistance, cost, weight, durability etc.)

  • Body
  • Bonnet
  • Wetted parts
  • Seat
  • O-rings
  • Other

Venting

  • Non-venting
  • Captured venting
  • Self-venting

Porting Options

  • Number of ports
  • Port type
  • Port size
  • Porting configuration

Mounting Options

  • Panel mounting nuts and threaded bonnet
  • Mounting bracket
  • Manifolds
  • Surface mount

Accessories/Adapters

  • Gauges
  • Shut off valve
  • Integrated shut off valve
  • Integrated relief valve
  • Purge block
  • Excess flow valve
  • Other