Sight Glass Valves | McMaster-Carr

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For Valve Center-to-Center

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1,299 Products

Fluid Handling

Liquid-Level Gauges

Monitor fluid levels in containers

574 products

Gauge Glass

Create or repair liquid-level gauges to monitor fluid levels in containers

138 products

Flow Sights

Visually confirm flow and inspect liquid color and clarity

154 products

Sights

Observe and monitor the contents of pipes, tanks, and other containers

246 products

Liquid-Level Transmitters

Send liquid-level data to logging and monitoring equipment

29 products

Hose

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

1 product

Hose Fittings

Create threaded, barbed, quick-disconnect, and other types of connections between lengths of hose

2 products

Sealing

Gauge Glass Gaskets

Seal the glass on level indicators to monitor liquids without leaks

14 products

Measuring and Inspecting

Staff Gauges

Typically mounted to walls and tanks for measuring the level of liquids, such as water, fuel, and oil

31 products

Liquid-Level Tape Measures

Lower into deep containers, such as tanks, to check the level of oil and other fluids

61 products

Gauging Pastes

Cover your tank-level ruler and change color to indicate the level of water or gasoline in your tank

2 products

Plumb Bobs

Suspend from a string to create a vertical reference line

10 products

Electrical Power, Networking, and Controlling

Sensor Switches

Detect moving objects from a distance, triggering a circuit to open or close

20 products