The Dura Plastics 15" Jumbo Valve Box Extension offers durable protection for in-ground irrigation system components. Designed for residential, commercial, and golf course use, it helps keep valves secure, clean, and dry from weather and debris while allowing easy maintenance access.
Construction & Durability:
- Made from high-strength plastic with excellent chemical resistance
- UV-stabilized material for long-term outdoor use
- Static vertical load rated for light duty pedestrian use (SCTE standard)
- Tensile strength: 2,700–4,400 PSI for enhanced impact durability
Performance & Functionality:
- Water absorption is less than 1% for consistent dry interior
- Deflection temperature at 66 PSI: 150–200°F ensures thermal stability
- Electrical dielectric strength: 400–600 V/mil for safe installation near utilities
Ease of Installation & Use:
- Extension design integrates seamlessly with standard 15" x 21" valve boxes
- Includes green lid and black body for quick identification and blend-in appearance
- Lightweight yet durable for quick placement in non-vehicular traffic areas
Technical Specifications:
- Product Dimensions: 15" x 21", 6" deep
- Color: Black body with green lid
- Material: UV-resistant, high-strength plastic
- Load Rating: SCTE – Light Duty, Pedestrian
- Tensile Strength: 2,700–4,400 PSI
- Flexural Modulus: 140,000–240,000 PSI
- Impact Strength (Notched Izod): 0.5–3.0
- Deflection Temp @ 66 PSI: 150–200°F
- Density: 0.950–0.965
- Electrical Dielectric Strength: 400–600 V/mil
- Water Absorption: <1% weight change
- Chemical Resistance: Yes
Installation & Application:
- Recommended Uses: Residential, commercial, parks, and golf courses
- Installation Method: Buried in-ground, fits standard valve box setups
- For use in non-vehicular traffic areas
Compatibility & Optional Accessories:
- Compatible with Dura Plastics 15" x 21" valve boxes
- Can be used with various lid color options (green, black, purple, tan)
