DWYER INSTRUMENTS SFI-300-1/2 Double Sight Flow Indicator, 1/2 Inch Size, Bronze

Dwyer Instruments SFI-300-1/2 double window sight flow indicator displays the level of liquids in a tank or the presence or purity of liquids in a pipe system. It is used in chemical, manufacturing and other industrial facilities to monitor chemical processes and helps find flow disruptions, leaks and pollutants.

Features:

• Dwyer sight flow indicator, SFI-300-1/2, comes with a rotating impeller to observe the direction of the flow.
• It features Buna-N and fibre-constructed seals for excellent abrasion resistance.
• The unit has two removable tempered glass windows for ease of maintenance.
• It is made of bronze to provide heat conductivity and shock resistance.
• This Dwyer flow indicator can operate at temperatures ranging from 32 to 200 degrees Fahrenheit.

Standards and Approvals:

• ANSI

Frequently Asked Questions:

Q. What is the difference between a flow indicator and a flow transmitter?

A. A sight flow indicator is used to monitor the fluid flow in a length of pipe. On the other hand, in addition to measuring the flow rate, flow transmitters also aid in controlling and monitoring it.

Q. Where should the oil be on the sight glass?

A. It is advised to install the oil sight glass (OSG) at the oil reservoir's lowest position, usually the drain port. Water pollution will move to the OSG, where it may be purged from the system and will get separated from good-grade oils.

Q. What does bubbles in a sight glass mean?

A. In the sight glass downstream of the receiver, bubbling and flashing may happen during starting of some refrigeration systems when there is a heavy load on the system. This bubbling is brought on by a pressure drop at the receiver's output tube entrance. Rapid increases in load may also cause bubbling.