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Sigma Instruments Company
Sigma Instruments Company is in the business of design & development, manufacturing and supply of Tank Level & Flow Instrumentation products. Established in 1973, Sigma draws its inspiration from E th Read More
Magnetic Float Operated Level Transmitter
Sigma's Magnetic Float Operated Level Transmitter is a simple and reliable technique for continuous level indication and control of any liquid, chemically compatible with the (sensor) material, una read more
Level Switch (Reed Type)
Sigma Float operated Reed Level Switch are ideally designed for liquid level indication in tanks. The design is simple and compact. Typical applications are water, diesel, chemical storage and hydr read more
Top Mounted Level Switch
Severity, adversity... whatever the conditions of environment, Sigma Liquid Level Controllers keep operating. Rugged design of our units offer an electrical compartment completely isolated from the read more
Cable Float (Tilt Type) Switch
Cable Float Switch (Tilt Type) has a double chamber construction to make it absolutely hermetic. Switch differential is set with the help of a counter weight that can be adjusted alongside the cabl read more
Side Mounted Level Switch (Float Level Switch)
Sigma's Float Level Switch are compact solutions to monitor low, intermediate and high level in tanks. This rugged, quick mounting & maintenance free design is an instant choice for tanks with high read more
Tubular Level Gauge
Sigma's direct reading liquid level gauge glasses are the recognized reliable means of accurately determining the liquid level in process tanks, pressure vessels, boilers & various other types of c read more
Sight Flow Indicator (Flow Glass)
Sigma's Sight Flow Indicator (Flow Glass) are designed to facilitate instant visual indication of liquids flowing through pipes even from a distance. Visual inspection and proper control of vital a read more
Flat Glass Gauge (Armored)
Flat Glass Level Gauges are reliable means for accurate measurement and direct observation of process fluids. These are designed to match industry requirements of ruggedness and material mix to widen read more
Weld Pad Flat Glass Level Gauge
Weld Pad Flat Glass Liquid Level Gages are designed to become an integral part of the vessel, Weld pad liquid Level Gages are directly mounted to the tank or vessel to be measured. Sigma Welding Pa read more
Pneumatic Level Switches
Pneumatic Level Switches are used in application where electrical switching is not recommended or electricity is not available. These systems require minimum 2 kg/cm2 clean filtered air, pr read more
Needle Valves
Needle Valves are available in two way, three way, multiport, single block & bleed, double deck and bleed. These Needle valves are available in variety of end connections screwed male/female pipe ends read more
Oil Level Gauge
Oil Level Gauges / Indicators (Acrylic) are designed for measuring / indication of level of oil or other transmission liquids. The principle of operation is liquid maintaining its level by virtue of g read more