F-461 Ultrapure High Temperature Polysulfone
Molded Flow Meter

F-461 Ultrapure High Temperature Polysulfone Molded Flow Meter

Pipe sizes 1″ female NPT fittings; 1″ socket fusion fittings
Flow from 1 to 35 GPM (4 to 130 LPM)


  • For use in UltraPure applications

  • No metal in the fluid path

  • Rib guided float

  • Polysulfone meter body resists high temperatures and pressures

  • PTFE float and optional PVC, Polypropylene or PVDF adapters for corrosive applications

  • Direct reading permanent scale



Max. Working Pressure:

150 psig (10.3 bar) @ 70° F (21° C)

Max. Fluid Temperature:

PVDF adapters: 210˚F / 98˚C @ 0 PSI
PVC adapters: 130˚F / 54˚C @ 0 PSI

Full Scale Accuracy:

+/- 2 ½%

Meter Body Material:


Adapter Material:

Female NPT (1”): PVDF or PVC

Socket Fusion (1”): PVDF or Polypropylene

Union Nuts:

Anodized Aluminum (optional PVC)

Float Material:


O-ring Material:

FKM (Optional EP)

Max Pressure Drop:


Approx. Shipping Weight:

3 lb. (1.4 kg)

Tech. Data Sheet (US) (PDF) (PN 85000-060)
Tech. Data Sheet (METRIC) (PDF) (PN 85000-074)
Instruction Manual (PDF) (PN 80000-324)

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