Level Gages & Valves | Flow Indicators | Sight Windows

Model AKF-FTFZ Tefzel Lined Flanged Sight Flow Indicator

Model AKF-FTFZ Tefzel Lined Flanged Sight Flow Indicator

Teflon Lined Sight Flow IndicatorOffered in 150# ANSI, 300# ANSI & 600# ANSI Ratings

The Model AKF-FTFZ Tefzel Lined Flanged Sight Flow Indicator has a cast body. TEFZEL ® fluoropolymer resin is inert to strong mineral acids, inorganic bases, halogens and metal salt solutions. The material is ineffective with organic bases and very strong oxidizing acids near their boiling point. Consult the factory to obtain information about TEFZEL ® chemical use/temperature guide.

TEFZEL ® has excellent mechanical strength, stiffness, and abrasion resistance and an effective temperature range from -370°F (233°C) to 300°F (150°C).  Pressure and temperature ratings will depend on the materials of construction and sight flow indicator model selected.

This sight flow indicator provides visual observation and monitoring of the process flow stream. Available devices to enhance visibility include, drip tube, flapper and rotator. Bodies are available in Bronze, Iron, Steel and Stainless Steel. Special alloys are also available. Standard units are available in 150#, 300# and 600# ANSI ratings.

  • Model AKF-FTFZ designates a 150# ANSI rating
  • Model AKF-FTFZM designates a 300# ANSI rating
  • Model AKF-FTFZH designates a 600# ANSI rating

Bonded Lined Sight Flow Indicators – Full Vacuum to 1480 PSIG
Material: Tefzel (ETFE), specialty fluoropolymers
Application: Rotational lining over adhesive layer
Substrate: Carbon steel standard; stainless steel available for cryogenic service and corrosive atmospheres.
Pressure: Full vacuum to 1480 PSIG (102 BAR)
Maximum Temperature: 500F (260C) Thickness: 79-120mils

ANSI flange rating, 150#, 300# and 600#
Available with Drip Tube, Flapper and Rotator
Dual Window units are available
Standard Glass is Borosilicate
Fused Glass Material is available

Fused Safety Glass