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  • GRP Odour Covers

GRP Odour Covers

Engineered, manufactured and installed for safe, compliant odour containment in corrosive environments.

PJNC LIMITED designs, manufactures and installs GRP Odour Control Covers for wastewater treatment and industrial process sites. Built to British and European standards, our covers provide reliable containment, reduce treatment volumes and deliver long service life with minimal maintenance and are fully compliant in highly corrosive environments.

If you need walk-on or non-walk-on GRP covers, we provide tailored solutions that deliver reliable odour containment while reducing long-term costs.

Why Choose GRP Odour Covers?

GRP (Glass Reinforced Plastic) is the ideal material for odour containment, offering superior corrosion resistance, lightweight strength, and low maintenance compared to traditional metal alternatives.

✔ **Walk-on and non-walk-on options** to suit project needs

✔ **Custom design flexibility** – tailored to any tank size, shape, or layout

✔ **Reduced odour volume** – flat cover design lowers air space under the lid, reducing treatment costs

✔ **Corrosion-resistant** – won’t rust, peel, or degrade in harsh wastewater environments

✔ **Lightweight construction** – easier handling, faster installation, and reduced transport costs

✔ **Low maintenance** – resistant to chipping, fading, and costly repairs

Technical Design Specifications

All PJNC GRP odour control systems are engineered in line with applicable standards and client requirements, including:

  • WIMES (Water Industry Mechanical & Electrical Specifications)
  • British Water – relevant Codes of Practice
  • BS EN / ISO structural and materials standards
  • Water Authority-specific requirements (by project)

Options & features: access hatches, anti-slip walkways, inspection ports, removable panels, ventilation/duct spigots, handrails/edge protection, fall-arrest posts, gasketed and sealed joints, chemical-resistant finishes.

Cover System Components Include:

  • GRP Cover Profiles
  • GRP Support Structures
  • Stainless Steel 316 Accessories (brackets & fasteners)

Applications

  • Inlet Channels
  • Screen Areas
  • Detritors
  • Grit Lanes
  • Sludge Tanks
  • Pump Wells
  • Screw Pump Stations
  • Primary Settlement Tanks
  • Storm Tanks

Type of Odour Covers

  • Walk-on Covers
  • Non-Walk-on Covers
  • Walk-in Covers
  • Removable Covers
  • Hatches – man access, inspection and pump types
  • Sliding Covers
  • Rotating Covers

Why Work With PJNC Ltd?

✔ 30+ years of composite engineering experience

✔ Full design, supply, and installation service

✔ Proven track record across UK, Europe, and Middle East

✔ Compliance with strict water industry specifications

✔ Custom-built solutions for specialist environments

Contact Us for GRP Odour Control Covers

Need walk-on or non-walk-on GRP covers for your site?

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Frequently Asked Questions

What’s the difference between walk-on and non-walk-on GRP covers?

Walk-on covers are structurally designed for pedestrian loads and maintenance access; non-walk-on covers provide containment where access on top is not required.

Can GRP covers be made to fit irregular tanks?

Yes. We design flat, pitched, curved and segmented panels to suit any geometry, with sealed joints and access points as required.

Do GRP covers reduce odour treatment costs?

Yes. Flat cover designs reduce the headspace volume, lowering the amount of air that needs extracting and treating.

Are the covers compliant with UK water-industry standards?

PJNC designs to WIMES, British Water guidance and relevant BS EN / ISO standards, plus any Water Authority specifications.

What options are available?

Access hatches, inspection ports, anti-slip walkways, removable panels, handrails, ventilation spigots and chemical-resistant finishes.

What are typical lead times?

Most systems are designed, fabricated and installed within 2–6 weeks, depending on complexity and site constraints.