Diaphragm Level Switch Manufacturer in Pune
Press your palm against a drum skin and you’ll feel it push back. Now picture a tough membrane like that set into the wall of a silo, with tonnes of grain, cement or sawdust slowly leaning on it. When the material rises high enough, the membrane flexes, a lever moves, and a switch clicks. It needs no power, no screen and no calibration to do it.
That’s the diaphragm level switch, and Levtron Instrument Pvt. Ltd. in Pune builds it in two versions. The RDLS-1400S uses a heavy-duty rubber diaphragm for dry, free-flowing powders and grains, while the SDLS-1500S uses a stainless steel diaphragm for hot, abrasive bulk solids. Between them, they cover most bins, hoppers and silos.
What Is a Diaphragm Level Switch?
A diaphragm level switch is a mechanical point level switch for dry bulk solids. A flexible diaphragm sits flush inside the wall of a bin, silo or chute. When rising material presses against it, the diaphragm moves and works a microswitch.
Because the switch is pressure-activated, it needs no external power to sense the material. When the level drops and the pressure eases, the diaphragm returns and the microswitch resets. It’s a direct, mechanical action that’s easy to understand and easy to trust.
Why Choose Diaphragm Level Switches From Levtron?
A switch in a silo wall has to cope with weight, dust and constant filling. Here’s what buyers tend to like about working with us:
- Two diaphragm versions: A rubber diaphragm suits light, non-abrasive materials, and a stainless steel diaphragm suits hot and abrasive ones.
- No external power for sensing: Mechanical pressure operates the switch, so it keeps working without a supply.
- Made in India and tested: Both models are made in India and are 100% tested and calibrated before they reach you.
- Catalogue and manual available: A product catalogue and user manual support selection and installation.
- Round-the-clock support: Our team provides remote support at any hour, so a question doesn’t wait until Monday.
Applications of Diaphragm Level Switches
Any plant that stores dry bulk solids in bins, hoppers or silos can use a diaphragm level switch. Here are the common cases:
- Grain bins and feed hoppers: Flour, grain and feed storage need clear high and low signals. A rubber diaphragm switch stops filling before a bin overflows and warns when stock runs low.
- Packaging and bagging hoppers: Bagging plants depend on a steady supply above the filler. A switch gives a high and low alarm so the line never runs empty.
- Sawdust and wood chips: Woodworking and biomass facilities handle light, bulky material. A diaphragm switch detects it reliably without electronics in the material.
- Cement silos and clinker bins: Hot, abrasive cement clinker and raw meal silos need a rugged switch. The stainless steel diaphragm resists wear and heat.
- Coal bunkers: Thermal power plant bunkers need a level signal that survives heavy, abrasive coal. A metallic diaphragm keeps working where softer materials would tear.
- Hot fly ash hoppers: Ash hoppers run hot and dusty. A stainless steel diaphragm switch gives a dependable high level alarm in these conditions.
Wherever dry material is stored in a bin or silo, a diaphragm switch keeps the level under watch.
Salient Features of Diaphragm Level Switches
Here’s what you can expect from the Levtron RDLS-1400S and SDLS-1500S:
- Pressure-activated mechanical action: Rising material pushes the diaphragm, which works a microswitch. No external power is needed for sensing, and there are very few parts to go wrong.
- Diaphragm to suit the material: The RDLS-1400S has a heavy-duty neoprene or nitrile rubber diaphragm. The SDLS-1500S has an SS304 or SS316 stainless steel diaphragm that resists abrasion and tearing.
- Adjustable sensitivity on the rubber model: Spring tension can be set for light to medium bulk densities. You can tune the switch to your own material.
- Wide temperature range: The rubber version works from -20°C to +80°C, and the stainless steel version from -20°C to +200°C. That covers cold storage bins and hot ash hoppers alike.
- Strong output and enclosure: A 1 SPDT microswitch rated 15A at 250V AC connects directly to starters and alarms. The cast aluminium housing is built for plant use, and the SS version is IP65.
All of this adds up to a switch that’s simple to fit and doesn’t need constant attention.
Benefits of Diaphragm Level Switches
Here’s what changes once your silo has a reliable diaphragm switch:
- No more silo overflows: A high-level signal stops the filling before material spills. You save product, clean-up time and a lot of dust.
- No more empty hoppers: A low-level signal prompts a refill before a process starves. That keeps machines running and avoids lost production.
- Works without power for sensing: Mechanical operation means the switch doesn’t depend on a supply to detect material. That keeps it dependable in remote bins.
- Fewer manual checks: Nobody has to climb ladders to look inside a bin. Your team saves time and avoids working in dusty, awkward places.
- Low maintenance: A simple diaphragm, lever and microswitch have little to wear out. That means fewer shutdowns for repair.
For most plants the biggest gain is simple: you stop looking into silos and start trusting a signal.
Diaphragm Level Switch Supplier in Pune
Levtron Instrument Pvt. Ltd. supplies diaphragm level switches from Pune to industries in the city and beyond, from grain, feed and packaging plants to cement, coal and power. We help you choose between the rubber and stainless steel versions for your material and temperature, supply the model that suits your vessel, and pair it with our other level switches if you need them.
Share your material, vessel details, temperature and the levels you want to detect, and we’ll recommend a switch and arrange delivery to your site.