Flow protection for over two decades — engineered to protect downstream pumps, meters, valves and turbines in severe-service industrial piping systems.
Hydrotherms is an established Indian engineering and manufacturing firm headquartered in Bengaluru's premier industrial zone, Peenya Industrial Area. For more than two decades we have partnered with process industries to solve severe flow-control and pipeline debris challenges.
We specialise in designing and building high-performance Y-type, simplex basket, duplex twin-basket, tee-type and automatic strainers that provide vital protection for mission-critical downstream equipment — centrifugal pumps, control valves, flowmeters, nozzles, heat exchangers and compressors.
Whether the line is high-velocity steam, a high-pressure gas header, or an aggressive chemical or hydrocarbon service, we deliver custom-engineered straining solutions that prevent costly downtime and keep the process running.
To become the most trusted partner and specialist for critical service and demanding applications.
Over two decades of proven performance, serving global OEMs, refiners, EPCs and power producers.




of our customers have stayed with us over two decades
Logos are the trademarks of their respective owners and are shown to indicate supply history.
A strainer is a pressure-containing part. What matters is not that it was made carefully, but that it can be shown to have been.
Every strainer undergoes a mandatory hydrostatic test at 1.5 times design pressure, per ANSI B16.34 and ASME Section III, to guarantee zero boundary leakage. Our rig runs to 800 bar.
All welding procedures — WPS and PQR — and all welders are certified and qualified strictly under ASME Boiler & Pressure Vessel Code Section IX.
Qualified ASNT Level II and III personnel execute multi-method examination: radiography by X-ray, Iridium-192 and Cobalt-60; ultrasonic testing; magnetic particle, including wet fluorescent; and liquid and fluorescent penetrant.
100% material verification against Mill Test Certificates, with individual heat-number tracking retained on file for five years.
Not a generic works procedure. Our quality plan is written around strainer failure modes — the screen, the cover joint, the weld — and is issued with the order.
Extensive experience delivering equipment released by Lloyd's Register, Bureau Veritas, TÜV, Engineers India Limited and PDIL — and by your own inspector where the specification calls for it.
Ranges, not adjectives. Anything outside these is a conversation, not a refusal.
Fabricated bodies are built to drawing where a casting does not exist for the size or the material. Send the line data and we will size it.
The service decides the strainer. These are the sectors we supply.
Service media: water and steam, lubricants, chemicals, fuels and gases.
Hydrotherms manufactures at Peenya Industrial Area in Bengaluru — one of the largest industrial estates in South Asia, and the centre of Karnataka's engineering trade.
Machining, fabrication, welding, assembly, non-destructive examination and pressure testing are all carried out in house. That is what allows a build-to-drawing order to be quoted and delivered against a real programme — and it is why a high-pressure body never has to leave the works to be proved.
Visitors and third-party inspectors are welcome by arrangement.
Send the size, class, material, media and flow. We will size the strainer and quote against it.
Request a quotationOur strainer quality control document — test protocols, NDE methods, traceability and inspection hold points.
Download the catalogue