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Teflon Lined Sight Flow Indicators

SUPERIOR CORROSION PROTECTION FOR THE MOST DEMANDING PROCESSING ENVIRONMENTS

Lined Sightflow IndicatorsLined Sight Flow Indicators are designed for viewing corrosive media.  Except for the borosilicate glass, the lining of the indicator covers all otherwise wetted parts.  The lining provides protection from attack by chemicals and solvents which can cause rapid deterioration of standard plastics and common metals.  Lined bodies are available with special Teflon® drip tube or single-sheet flutter flapper indicators.

Teflon resins are essentially chemically inert.  The only known chemicals that react with Teflon are molten alkali metals, turbulent fluorine and a few fluoro-chemicals and halogenated organic chemicals. Teflon lined bodies are available with drip tube and flutter flapper style indicators.  

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.  

Tefzel has excellent mechanical strength, stiffness, and abrasion resistance and an effective temperature range from -370°F (-223°C) to 300°F (150°C). Pressure and temperature ratings will depend on the materials of construction and sight flow indicator model selected.

Lining Choices
Fused Lined Sight Flow Indicators - Full Vacuum to 1480 PSIG
MATERIAL: PFA Teflon, specialty fluoropolymers 
APPLICATION: Powder coating over catalytic primer
SUBSTRATE: Carbon steel standard; stainless steel available for cryogenic service and corrosive atmospheres
PRESSURE: Full vacuum to 1480 PSIG (102 BAR)
MAX. TEMPERATURE: 500F (260C) Thickness: 30-40mils
MODELS:* 910-FA-PFA,608-FA-PFA,F910HPA (300/600),F608-HPA (300/600), 90-PFA, 90DPFA, 830-F-PFA, 830-FD-PFA, 860-F-PFA, 5005-DW-PFA ,  Full Face Uniglas
* NOTE: ALL MODELS EMPLOY NON-STANDARD, SPECIAL, FACE TO FACE DIMENSIONS OF SUBSTRATE.
 
 
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)
MAX. TEMPERATURE: 500F (260C) Thickness: 79-120mils
MODELS:*910-FA-TFZ,608-FA-TFZ,F910HPA(300/600),F608-HPA (300/600), 90-TFZ,90DTFZ, 830-F-TFZ, 830-FD-TFZ,860-F-TFZ, 5005-DW-TFZ ,  Full Face Uniglas
 
 
Replaceable Lined Sight Flow Indicators - 0 to 1480 PSIG
MATERIAL: Teflon (PTFE)
APPLICATION: Machined to allow assembly into part over gasketing
SUBSTRATE: Carbon steel standard; stainless steel available for cryogenic service and corrosive atmospheres
PRESSURE: 0 PSIG (0 BAR) to 1480 PSIG (102 BAR) Thickness: 62-90mils
MAX. TEMPERATURE: 450F (232C)
MODELS:* 830-F-TFE, 830-FD-TFE, 860-F-TFE, 5005-DW-TFE
* NOTE: ALL MODELS EMPLOY NON-STANDARD, SPECIAL, FACE TO FACE DIMENSIONS OF SUBSTRATE.
 
 
Molded Lined Sight Flow Indicators - 0 to 1480 PSIG
MATERIAL: Teflon (PTFE), Kynar (PVDF)
APPLICATION: Blow molded to follow contours of substrate .
SUBSTRATE: Ductile Iron
PRESSURE: 0 PSIG (0 BAR) to 1480 PSIG (102 BAR)
MAX. TEMPERATURE: 450F (232C) Thickness: 90-120mils
MODELS:* 910-FA-TFE, 910-FA-KYN, 608-FA-TFE, 808-FA-KYN
 
 
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