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1.Keywords
FRP Wastewater Cover, PP Odor Control Cover, Modular Tank Lid, Chemical Resistant Walkway, Biogas Collection Dome, UV-Stable Cover Panel, Sludge Tank Enclosure, Corrosion-Proof Access Hatch, Lightweight Cover System, Sewage Plant Walk-On Covers
2.Technical Specifications
1. Material Options & Properties
Material |
Thickness |
Max Span |
Load Capacity |
Chemical Resistance |
FRP Grating |
25-50mm |
1.5m |
3kN/m² |
H₂SO₄, HCl, NaOH (<30%) |
PP Plate |
15-30mm |
1.2m |
1.5kN/m² |
HF, H₂SO₄ (<50%) |
PVC Foam Board |
20-40mm |
1m |
1kN/m² |
Organic solvents |
Aluminum Composite |
4-6mm |
0.8m |
0.5kN/m² |
Mild chemicals |
2. Standard Panel Sizes
Type |
Length |
Width |
Weight |
Joint System |
Modular |
1000mm |
500mm |
6-12kg/m² |
Tongue-groove |
Large |
2000mm |
1000mm |
15-25kg/m² |
Flanged |
3. Performance Parameters
UV Resistance: ≥10 years (with stabilizers)
Fire Rating: B1 (GB 8624) / Class A (ASTM E84)
Temperature Range: -30°C to +80°C (FRP)
Slip Resistance: R10 (DIN 51130)
3.Key Features
1. Triple-Protection Design
Sealing Layer:
EPDM gasket (3mm) for 100% odor containment
Structural Layer:
FRP ribs (50×50mm grid) for load bearing
Surface Layer:
Anti-slip grit coating (60# alumina)
2. Smart Access System
Quick-Open Hatches:
Gas-strut assisted (500×500mm to 1000×1000mm)
Inspection Ports:
Transparent PC windows (Ø150-300mm)
3. Biogas Management
Integrated Collection:
PP gas domes with Ø80mm PVC extraction ports
Safety Vents:
Flame arrestors + pressure relief valves
4.Industry Applications
A. Municipal WWTP
Aeration Tanks:
FRP walk-on covers with 600mm service hatches
Sludge Thickeners:
Parameter |
Value |
H₂S Concentration |
≤200ppm |
Surface Load |
2kN/m² |
B. Industrial Wastewater
Electroplating Tanks:
PP covers with acid-resistant bolts (PVDF coating)
Pharmaceutical Effluent:
Feature |
Spec |
Seal Type |
Double O-ring |
Sterilization |
UV-C embedded |
C. Biogas Plants
Anaerobic Digesters:
3-layer FRP sandwich construction:
1.Inner: Conductive layer (10⁶Ω)
2.Middle: Foam core (thermal insulation)
3.Outer: Gel coat (RAL 7035)
5.Installation & Maintenance
1. Mounting Options
Fixed Type:
Chemical anchor bolts (M12, 304SS)
Removable Type:
Quick-lock clamps (316L SS)
2. Maintenance Features
Self-Cleaning:
5° inclined design + spray nozzles
Lifting Points:
4× eye bolts per panel (SWL 500kg)
6.Certifications & Testing
Load Test:
Standard |
Requirement |
EN 1991-1-1 |
1.5× design load |
ASME STS-1 |
100,000 cycles |
Gas Tightness:
Test Method |
Result |
EN 12259-4 |
≤5m³/h·m² @ 500Pa |
7.Custom Services
✓ CFD wind load simulation
✓ Mobile app for leakage monitoring
✓ RFID asset tagging
8.Contact for
CAD drawings (DWG/STEP)
On-site air quality testing
Emergency replacement kits
Indirizzo
20 Xingyuan South Street, contea di Zaoqiang, città di Hengshui, provincia di Hebei, Cina