Part of FRP Manhole Covers Category

Square & Rectangular FRP Inspection Chamber Covers

Modular Square & Rectangular Composite Access Covers for Water Tanks & Cable Trenches

Direct Factory Manufacturer

Operating out of our dedicated Bhiwandi facility since 1962 with zero distributor markup.


  • ISO 9001:2015 Certified Production
  • Custom Dimensions & Sizing
  • Rapid PAN India Freight Dispatch

Engineering Overview & Technical Application

Underground electrical substations, water storage sumps, telecom duct banks, and sewage treatment plant (STP) tanks require rectangular and square access covers for easy inspection and equipment replacement. Rawji Exports manufactures single and multi-leaf modular square and rectangular FRP inspection covers engineered to exact pit dimensions.

Technical Parameters

Engineering & Material Specifications

Rigorous quality testing and dimensional accuracy conforming to national and international composite standards.

Standard Sizes 300x300, 450x450, 600x600, 900x600, 900x900, 1000x1000, 1200x900, 1500x900mm
Multi-Leaf Modules 2-leaf, 3-leaf, and continuous trench-run modular covers with removable center beams
Waterproof Tank Lids Odor-tight and insect-proof locking sumps for potable underground water tanks
Cable Duct Covers Solid chequered top lightweight panels for electrical and telecom cable trenches
Gas Strut Option Assisted lifting gas struts available for heavy industrial inspection hatches
Safety Grate Inside Optional internal fall-prevention safety mesh grate beneath primary cover
Chemical Resistance Impervious to sewage gases (H2S), chlorine, diesel, and motor oils
Load Ratings Pedestrian (5 kN) to Heavy Truck Loading (400 kN)
Common Queries

Frequently Asked Questions

Detailed technical and commercial answers from our composite product engineering team.

Yes. Our water tank covers use food-grade gelcoats and airtight silicone seals that prevent rainwater, dust, and insects from contaminating underground drinking water reservoirs.

For large openings (e.g., 2000mm x 1500mm), we supply modular multi-leaf covers with removable structural composite support beams, allowing one person to lift individual sections easily.

Yes, FRP is a non-conductive dielectric insulator, eliminating electrical shock hazards over underground power cables.

Request Factory Pricing & Technical Sizing

Fill out the quick RFQ form below to receive a formal quotation, CAD layout drawings, and bulk volume rates within 2 business hours.

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Direct Factory Dispatch From Bhiwandi Manufacturing Plant Across: Mumbai MMR, Thane, Navi Mumbai, Pune (Chakan, Talegaon, PCMC), Gujarat Industrial Belt (Ahmedabad, Surat, Dahej PCPIR, Ankleshwar GIDC, Vapi), Delhi-NCR, Hyderabad, Bengaluru, Chennai, and PAN India infrastructure projects.