ISO 9001:2015 Certified Manufacturer
Finished valves and strainers ready for despatch across the LKS Industries shop floor

Industries served

Twelve sectors, one question: what is the fluid going to do to the metal?

Our equipment is used worldwide across power, refining, chemicals, food, cement, pulp and paper, mining, petroleum and steel. The straining duty rarely changes much. The materials, testing and documentation change completely.

Large bore stainless steel tee strainer with the perforated screen fitted, built for pipeline duty

01 — Onshore & offshore

Oil & Gas

We have supplied pipeline ancillaries to onshore and offshore operators since the company started. This is where our higher pressure classes and full material traceability matter most, and where third-party inspection is usually written into the purchase order.

  • High-rating strainers in ANSI classes up to 2500 and ratings to 4500 lbs.
  • Pipe spools in duplex, super duplex, Incoloy and Inconel for corrosive and high-pressure duty.
  • Gas filtration vessels — including dry gas filters built to instrumentation OEM specifications.
  • Full NDT scope — radiographic testing, hydrostatic testing and PMI on pressure-retaining welds.
Batch of blue painted basket strainers with bolted covers and lifting handles, finished and tagged on the LKS Industries shop floor

02 — Refining & downstream

Petrochemical

Refinery and downstream service punishes equipment through a combination of temperature, pressure and aggressive media. Our answer is material selection first, then the testing regime to prove it.

  • Conical temporary strainers for start-up and commissioning, protecting new plant from construction debris.
  • Duplex strainers where a line carrying product simply cannot be taken down for cleaning.
  • Chrome-moly and high-alloy bodies where carbon steel will not survive the service life.
  • Documented despatch with test records travelling with the equipment.
Lined basket strainer with protective bore coating for aggressive chemical service

03 — Process chemicals

Chemical Processing

Chemical plants come to us with a media list and a corrosion problem. Lining, alloy selection and valve type all follow from that, and diaphragm valves frequently turn out to be the right answer where sediment and biofilm are the real enemy.

  • Lined and exotic-alloy strainers for acids, solvents and aggressive process streams.
  • Diaphragm valves whose minimal internal contact limits sediment and biofilm build-up.
  • Chemical injection skids — dosing packages pre-assembled, pre-tested and delivered ready to install.
  • Jacketed and insulated vessels for temperature-sensitive products.
Batch of flanged gate valves produced for power generation cooling water systems

04 — Generation & utilities

Power Generation

Cooling water systems eat strainers. Our largest repeat work sits here — basket strainers for cooling tower packages, running at sizes from 200NB up to 400NB and beyond, supplied both directly and through cooling tower OEMs.

  • Condenser and cooling water strainers in large bore, with davit-assisted covers for safe handling.
  • Conical start-up strainers for commissioning new units.
  • Isolation valves across utility-scale plant, gear or motor operated.
  • Air eliminators removing air from steam mains at high points before it reaches process equipment.
Batch of coated basket strainers manufactured for a water treatment project

05 — Water & wastewater

Water Treatment

Wastewater is where corrosion decides the maintenance budget. Knife gate valves with acid-proof stainless blades last markedly longer here, and automatic self-cleaning strainers remove the shutdowns that conventional filtration demands.

  • Knife gate valves designed for high suspended-solids, slurry, viscous, corrosive and abrasive media.
  • Double acting air release valves for water supply, irrigation networks and wastewater lines.
  • Automatic self-cleaning strainers removing 5–4,000 micron particles without system shutdown.
  • Water storage tanks including purifier tanks with FRP, and vertical tanks for treatment plants.

And seven more

Sectors we supply regularly

Pharmaceutical

Stainless steel construction with hygienic finishes. Diaphragm valves dominate here for the same reason they do in food — limited internal contact means limited sediment and biofilm.

Food, Dairy & Beverage

SS 304 and 316 storage tanks in vertical, horizontal, single or double walled and jacketed configurations for food and dairy, brewing and beverage lines, plus hygienic strainers.

Marine & Offshore

Seawater duty strainers and suction equipment built to resist chloride attack in continuous service, for onshore and offshore installations.

Infrastructure & EPC

Pre-engineered buildings, pipe racks, trestles, mezzanine floors, platforms and site steelwork fabricated to your drawings and erected across Tamil Nadu and South India.

Cement

Slide gate valves at the outlet of dry bulk storage bins, silos, hoppers, chutes and conveyors, controlling discharge of powder, pellet, flake and granular material.

Pulp & Paper

Duplex strainers on lines that cannot be stopped, and knife gate valves handling stock and slurry where a conventional gate would gradually erode.

Steel, Mining & Minerals

Abrasive and slurry service across steel plants, mining operations and mineral processing, where knife gate valves and heavy fabricated strainers earn their cost in service life.

General engineering

Fire-fighting systems, HVAC, compressed air, condensate return and cooling water on air compressors — the utility services every plant runs regardless of what it makes.

Application matrix

What tends to get specified where

A starting point rather than a rule. Duty, media and pressure always decide the final selection — send us the conditions and we will confirm.

Typical product selection by industry sector
Sector Typical strainer Typical valve Common material
Oil & GasBasket & conical, high ratingGate, ball, check / NRVCS A106, duplex, Inconel
PetrochemicalDuplex, conical (start-up)Globe, gate, checkChrome-moly, SS 316
ChemicalLined basket, Y-typeDiaphragm, ballSS 316L, Alloy 20
PowerLarge-bore basket, conicalButterfly, gateCast iron, CS, SS 304
Water & wastewaterAutomatic self-cleaning, basketKnife gate, air releaseDuctile iron, SS 304
PharmaceuticalY-type, basket (hygienic)DiaphragmSS 316L
Food & beverageBasket, Y-typeDiaphragm, butterflySS 304 / 316
MarineBasket, suction diffuserBall, check, footSS 316, bronze
CementDirt / mud boxSlide gateMS, cast iron
Pulp & paperDuplexKnife gateSS 304, ductile iron
Steel & miningHeavy fabricated basketKnife gateCS, hardfaced SS

Your sector not listed?

If it moves fluid through a pipe, we have probably strained or isolated it somewhere. Describe the service and we will tell you what we would build and why.