20+ Years of Water
Engineering Excellence

MS pressure vessels to IS 2825 / ASME Section VIII, FRP vessels for corrosive applications, sand filter housings, activated carbon filter vessels, iron removal filters, cartridge filter housings, and membrane pressure vessels — with appropriate nozzle sizing, manholes, and pressure ratings per process requirements.

MS underground and overhead storage tanks, chemical dosing tanks, equalisation tanks, sludge holding tanks, brine tanks, and chemical day tanks — with anti-corrosion lining (epoxy, rubber, FRP lining) based on fluid compatibility requirements.

Complete skid-mounted systems — RO skids, UF skids, chemical dosing skids, softener skids, DM plant skids, and filtration packages — fabricated on MS structural frames, fully assembled, piped, and factory-tested before dispatch. Reduces site installation time significantly.

MS structural supports, equipment platforms, pipe supports, walkways, staircases, and handrails — surface-treated (shot blasting, primer, epoxy paint) per project specifications. All welding by qualified welders per IS/ASME standards with DPT and hydrostatic testing.

RCC tank construction, equipment foundation design and execution, pipe trench, cable trench, equipment room construction, and boundary structures — supervised directly by Pervel's project team with documented quality control throughout.

Supply and erection of pumps, blowers, aerators, clarifiers, filters, membrane systems, chemical dosing systems, and sludge handling equipment — with alignment, grouting, and commissioning checks per OEM recommendations.

MS, SS304/316L, HDPE, uPVC, and CPVC process piping fabrication and installation per P&ID — including supports, hangers, flanges, valves, and pressure testing with documented inspection records.

MCC panel design and supply, power distribution, field cabling, earthing and lightning protection, flow meters, level/pressure transmitters, pH/ORP/conductivity/turbidity analysers, PLC-based control system, SCADA/HMI development, alarm and trip logic, data logging, and remote monitoring provisions.

Scheduled PM per OEM recommendations — pump overhauls, blower servicing, valve maintenance, instrumentation calibration, membrane integrity testing, and filter media replacement. Online monitoring of TMP, conductivity, pH, TDS, turbidity, BOD/COD tracked against design guarantees with trend analysis.

NPF and salt rejection tracking, CIP execution and effectiveness assessment, membrane replacement planning, ion exchange resin activity testing, regeneration optimisation, and resin replacement as per exhaustion data. Consumable and chemical procurement and supply included.

Assessment and revamping of ageing or underperforming plants — hydraulic re-rating, technology upgradation (ASP to MBBR, gravity to pressure filter, single to double-pass RO), capacity enhancement, and civil modification. Scope includes audit, gap analysis report, revamping design, procurement, and execution.

Biological: MLSS/MLVSS profiling, SVI measurement, microscopic biomass assessment (filamentous bulking, foaming, pin floc), DO profiling, F/M ratio, nitrification/denitrification efficiency, toxicity shock identification.

Chemical: Coagulant/flocculant dose optimisation by jar testing, LSI/Stiff-Davis scaling index, RO membrane autopsy, resin poisoning diagnosis, and chemical compatibility review — delivered as a structured diagnostic report with corrective action plan and implementation support.