Best Sight Flow Indicators
SFI-V18 is used to check for the presence of liquid flow in a piping system. The installation can be vertical or horizontal line and the integral drip lip makes it suitable for Leak proof application. Our Engineering and Designing capability allows to Develop New Products, customized to the requirements of different process, flow, application and working pressure and temperature.
Types of Sight Flow Indicator
Rotary Type
Rotary Type Sight Flow Indicators are with rotating wheels suitable for installation in any position but are particularly adapted to pipelines carrying dark opaque solutions, where the motion of the wheel is easily detected. This model is equally adapted to transparent solutions and gases. It is frequently installed where observations must be made from a distance.
Ball Type Sight Flow Indicator (BSF)
A low cost, ‘entry level’ sight flow indicator with either a high sensitivity spinner or ball operating from 0.7 l/m (water). The nitrile seals and nylon spinner or PTFE ball give excellent chemical resistance which is further enhanced in the stainless-steel version by the use of borosilicate glass as standard. These compact sight flow indicators are used extensively in plant protection applications to show coolant or lubrication flow to pumps, compressors, and engines.
Propeller Type Sight Flow Indicator (PSF)
The precisely engineered and manufactured ENVERDANT’s Propeller and Flapper Type Sight Flow indicators for more than decade let us to serve the industries like Power Generation Plants, Water Treatment Plants, Processing Industries (Chemical / Food / Petroleum / Oil & Gas) and for Pump application also. The Viton / PTFE / PET sealings use in these applications will suit any high viscous, high pressure and high temperature application.
Fixed Flap Sight Flow Indicator (FFSF)
ENVERDANT delivers a comprehensive range of sight flow indicators for tracking high pressure and / or temperature applications. For most applications, we offer the right type sight flow indicator from our product range. We also provide optional: valve rotors (plastic or PTFE), insulation jackets, (Ex) lights, cameras, wipers, washers, O-ring seals (vacuum), double glass with heating elements, mica, glass protection, metal fused sight glass.
Full View Sight Flow Indicators (FVSF)
ENVERDANT Full View SFI’s are available in various range of Flange connections and BOM. It is recommended to use FVSF only in low pressure range (till 20 bar(g)) only. Sealings and Glass types are available for various customizable range. Wide Range of Material Available. These are used for viewing the process flow to assure that the flow is continuous or to note the process turbidity / color / vorticity, etc.,
Fixed Flap Sight Flow Indicator (FFSF)
Double Window Sight Flow Indicator (DWSF)
Warning
Under corrosive conditions, the elements in condensate can affect the inside faces of the window(s), particularly where caustic alkali and hydrofluoric acid are present. It is recommended to check the sight glasses periodically for thinning of the window(s). If there is evidence of thinning or erosion damage then the window(s) should be replaced immediately. Always wear eye protection when viewing the contents of the sight glass.
Installation and maintenance note:
Sight glasses should have stop valves fitted on both the inlet and outlet. It is imperative that the upstream stop valve is closed first to prevent over pressure in the system. Sight glasses can be fitted in either a horizontal or vertical line on the outlet side of a steam trap. Where the trap is a blast discharge type e.g. thermodynamic, the sight glass must be fitted at least 1 m from the trap. This is to ensure that the glass is not subjected to thermal shock or pressure. Reasonable steps should be taken to protect personnel from injury in the unlikely event that the glass breaks. Ensure access is available for maintenance purposes.
Disposal:
The product is recyclable. No ecological hazard is anticipated with disposal of this product providing due care is taken.
Technical Data Table
Model | BSF / PSF / FSF | FFSF | FVSF | WSF |
Material of Composition | Cast Steel / CF3M / CF8M | CS/SS/Bronze | CS / SS | CS / SS / Brass / Bronze |
Connection | BW/ NPT / Flanged | Flanged | Flanged | Flanged |
Maximum Pressure | 60 bar(g) / 870 PSI | 32 bar(g) / 464 PSI | 20 bar(g) / 290 PSI | 28 bar(g) / 405 PSI |
Maximum Temperature | 2000 C | 2000 C | 3000 C | 4000 C |
Stock Availability | Ready Stocks | NA | Ready Stocks | NA |
Data in the table are subject to change, please confirm with GAD for complete actuals details. | ||||
