Login  -  About Us  -  Contact Us      

Phone: +64 9 634 1391
Email: sales@customcontrols.co.nz
Home | Regulators | 66 Series Direct-Operated Regulators and Vacuum Service Equipment

66 Series Direct-Operated Regulators and Vacuum Service Equipment

66 Series Direct-Operated Regulators and Vacuum Service Equipment Fisher® 66 Series direct-operated pressure-reducing regulators are widely used in burner control, tank blanketing systems, and other applications where precise control of low-pressure industrial gases is needed, while 66 Series direct-operated vacuum service equipment comes in both vacuum regulator and vacuum breaker constructions. These products differ in pressure capabilities and construction.

Features
  • Sensitive Response to Pressure Changes
  • Seat Protection without Sacrifice in Shutoff Capability
  • Tank Blanketing Capability
  • Accuracy
  • Application Flexibility
Body Sizes and End Connection Styles
  • NPS 2 (DN 50) Standard Cast Iron Body: NPT or CL125 FF
    • Optional Steel Body: NPT (all types), CL150 RF (all types), CL150 FF, CL300 RF
  • NPS 3 or 4 (DN 80 or 100) Standard Cast Iron Body: CL125 FF
    • Optional Steel Body: CL150 RF
Maximum Allowable Inlet Pressures
  • Emergency Inlet Pressure
    • Type 66, 66Z, 66ZZ or 66 Series Vacuum Breakers: 25 psig (1,72 bar) positive pressure
    • 66 Series Vacuum Regulators: 8 psig or 16.3-inches of mercury (0,55 bar differential) vacuum
  • Maximum Safe Pressure to Avoid Internal Parts Damage
    • Type 66: 10 psig (0,69 bar)
    • Type 66Z: 5 psig (0,34 bar)
    • Type 66ZZ: 2 psig (0,14 bar)
  • 66 Series Vacuum Regulators or Breakers: No more than 1 psig (0,07 bar differential) change from spring setting
  • Maximum Operating Inlet Pressure Recommended for Good Performance
    • Type 66, 66Z or 66 Series Vacuum Breakers: 5 psig (0,34 bar) positive pressure
    • Type 66Z: 2 psig (0,14 bar)
    • 66 Series Vacuum Regulator: 6-inches w.c. or 0.4-inch of mercury (15 mbar differential) vacuum
Maximum Allowable Outlet Pressures
  • Emergency Outlet (Casing) Pressure
    • Type 66, 66Z, or 66ZZ: 8 psig (0,55 bar) positive pressure
    • 66 Series Vacuum Regulator: 14.7 psi or 29.9-inches of mercury (1,01 bar differential) vacuum
    • 66 Series Vacuum Breakers: 8 psi or 16.3 inches of mercury (0,55 bar differential) vacuum
  • Maximum Safe Pressure to Avoid Internal Parts Damage:
    • Type 66, 66Z or 66ZZ: 1 psig (0,07 bar differential) above outlet pressure setting
    • 66 Series Vacuum Regulator: No more than 1 psig (0,07 bar differential) change from spring setting
  • Maximum Operating Inlet Pressure Recommended for Good Performance (66 Series Vacuum Regulators or Breakers Only)
    • Vacuum Regulators: 10 psig or 20.4-inches of mercury (0,69 bar differential) vacuum
    • Vacuum Breakers: 6-inches w.c. or 0.4-inch of mercury (15 mbar differential) vacuum
Pressure Registration
  • Type 66, 66Z or 66ZZ
    • Cast Iron Body: Internal (standard) or External
    • Steel Body: External (standard) or Internal
  • 66 Series Vacuum Regulators or Breakers: External
  • Control Line when Used: 3/4 NPT (standard)
  • Bottom Flange Line when Used: 1/4 NPT standard with removable plug
  • Spring Case Vent: 3/4 NPT standard with removable Type Y602-10 vent assembly
Temperature Capabilities
  • Nitrile (NBR) Standard:
    • -40º to 180°F (-40° to 82°C)
  • Fluorocarbon (FKM):
    • 0º to 350°F (-18° to 177°C)
  • Ethylenepropylene (EPDM):
    • -40º to 275°F (-40° to 135°C)
Approximate Weights
  • NPS 2 (DN 50)
    • NPT: 50 Pounds (23 kg)
    • Flanged: 55 Pounds (25 kg)
  • NPS 3 (DN 80) Body: 100 Pounds (45 kg)
  • NPS 4 (DN 100) Body: 155 Pounds (70 kg)



For general enquires contact us at (+64) 9 634 1391 or by email at sales@customcontrols.co.nz

Website Design By Smart Software