Description

Features

•  The Model 20 Pneumatic High Capacity
  Volume Booster uses a pneumatic input
  signal to accurately control output pressure
• A balanced Supply Valve minimizes the
  effects of supply pressure variation
• Aspirator Tube compensates downstream
  pressure droop under flowing conditions
• Optional Adjustable By-Pass Needle Valve
  option includes bubble tight exhaust valve
  allows tuning for optimum dynamic response
  (1:1 ratio only) and cycle free operation with
  valve positioners
• Optional Fixed Negative Bias for pneumatic
  signal devices that cannot be adjusted to
  zero signal pressure
• A separate Control Chamber isolates the
  diaphragm from the main flow to eliminate
  hunting and buzzing
• Unit construction allows servicing without
  removal
• Mounting Bracket available
• Canadian Registration Number (CRN)
  Certification for all territories and provinces   
• The Model 20 Pneumatic High Capacity
  Volume Booster uses a pneumatic input
  signal to accurately control output pressure
• A balanced Supply Valve minimizes the
  effects of supply pressure variation
• Aspirator Tube compensates downstream
  pressure droop under flowing conditions
• Optional Adjustable By-Pass Needle Valve
  option includes bubble tight exhaust valve
  allows tuning for optimum dynamic response
  (1:1 ratio only) and cycle free operation with
  valve positioners