SERIES E-57 SIGHT FLOW INDICATORS

MODEL EFI E-57-1
(Rynite® Flapper)
Not recommended for downward flow

MODEL EFI E-57-4
(Ball Action - Specify Ball Material)

MODEL EFI E-57-0
(Plain)

MODEL EFI
E-57-2
(Drip Tube)

MODEL EFI
E-57-3
(Rynite®
Rotating Wheel)

BRONZE OR PVC
Plain, Ball Action, Flapper, Drip Tube or Rotating Wheel
Pressure Rating:
Furnished with Tempered glass: 200 PSI (*PVC 100 PSI with
Tempered glass @ 75˚F)

Temperature Rating:
Up to 500˚F depending on glass and gasket selection


* NOTE: PVC only available in Model EFI E-57-0 or E-57-4.
PTFE gaskets standard with PVC.
Consult Ernst Flow Industries for PVC dimensions and weights
.

CARBON STEEL OR
316 STAINLESS STEEL
Plain, Ball Action, Flapper, Drip Tube or Rotating Wheel

MODEL EFI 805-SL
Available in pipe sizes 1/8” through
2” and in lengths up to 48”
Graduated cylinders also available

Notes:
• Materials of construction indicated describe wetted surfaces only. Bolting, tie rods, glass retaining rings and covers may be of materials other than those indicated for the wetted surfaces. Optional materials for these parts are available. Consult Ernst Flow Industries relative to standard and optional gasket materials.
• Optional materials of construction are available...consult Ernst Flow Industries.
• Optional connection type available (i.e. socket weld, butt weld, sil-braze, etc.).
• Consult Ernst Flow Industries regarding operating temperatures for specific sight flow indicator and sight window models.

NPT THREADED CONNECTION / WINDOW TYPE
CONSTRUCTION: BRONZE, CARBON STEEL OR 316 STAINLESS STEEL
NEOPRENE SEAL GASKETS AS STANDARD

STANDARD FEATURES:
• FNPT conncetions per ASME B2.1
• Independently threaded retainers machined from corrosion resistant alloys
• Annealed borosilicate glass
• Hex ends on bodies allow for easy installation
• All ASTM listed body materials
• CRN – All Provinces

FLAPPER
Pressure Rating: 150 PSI


EFI 100-S Sight Flow Indicators are recommended for both horizontal and vertical pipe lines with upward flow. This model is best suited to transparent or slightly opaque solutions. Position of flapper indicates variation in flow rates. May be supplied without flapper where no internal indicator is required.

ROTATING PTFE WHEEL
Pressure Rating: 150 PSI


EFI 300-S Sight Flow Indicators
operate successfully in any orientation but are particularly adapted to pipe lines carrying dark opaque solutions where the motion of the wheel is easily detected. This model is equally adapted to transparent solutions and is frequently installed where observation must be made from a distance.

DRIP TUBE
Pressure Rating: 150 PSI


EFI 200-S Sight Flow Indicators are best adapted to vertical downward flow. Designed without any obstruction, this unit is particularly useful in distillation and similar apparatus where flow is apt to be intermittent.

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