Description
Attwood Pressure Relief Deck Fill | Boat Supply Store
Safeguard your vessel's fuel system and ensure regulatory compliance with this advanced Attwood deck fill, engineered for superior pressure management. It features an integrated system including automatic diurnal emission control and overpressure relief valves that activate above 1 psi, preventing dangerous vapor buildup. Designed for 1-1/2 inch fill hose and 5/8 inch vent hose, it facilitates efficient refueling up to 18 gpm while preventing water intrusion, essential for maintaining engine integrity in saltwater environments like the Gulf Coast.
Key Features
- Integrated Pressure Relief System ensures optimal fuel tank safety and prevents vapor escape.
- Automatic Diurnal Emission Control minimizes hydrocarbon emissions, meeting strict environmental standards.
- Overpressure Relief Valves release at 1 psi, protecting the fuel system from excessive internal pressure.
- Triple High-Flow Vacuum Valves provide crucial make-up airflow for smooth refueling and prevent tank collapse.
- Automatic Nozzle Shutoff rated for 4-18 gpm minimizes spill-back and enhances refueling efficiency.
- Water Intrusion Prevention design keeps your fuel tank contaminant-free.
- Durable Stainless Steel Construction with a scalloped cap ensures longevity and corrosion resistance.
- EPA & CARB Compliant for mandatory environmental regulations.
Specifications
| Product Specifications | |
|---|---|
| Brand | Attwood Marine |
| Model | Deck Fill f/Pressure Relief Systems |
| Body Style | Straight |
| Cap Style | Scalloped |
| Cap Material | Stainless Steel |
| Pressure Relief Threshold | 1 psi |
| Vacuum Valve Type | Triple High-Flow |
| Automatic Nozzle Shutoff Flow Rate | 4-18 gpm |
| Fill Hose Size | 1-1/2 inch |
| Vent Hose Size | 5/8 inch |
| Fuel Compatibility | Ethanol Blended Fuels |
| Certifications | EPA Certified, CARB 13 CCR 2235, ISO 13331 |
Who This Is For
Boat owners and marine mechanics requiring a code-compliant and highly functional fuel fill solution for pressure relief systems. It is ideal for vessels operating under strict environmental regulations or those experiencing frequent refueling with high-flow nozzles.
How It Compares
| Feature | Attwood Pressure Relief Deck Fill | Perko 0494DP099A Deck Fill |
|---|---|---|
| Integrated Pressure Relief System | Yes (1 psi threshold) | No |
| High-Flow Vacuum Valves | Triple | No |
| Automatic Nozzle Shutoff | 4-18 gpm | No |
| Material | Stainless Steel | Bronze |
| EPA/CARB Certified | Yes | No |
| Hose Size (Fill) | 1-1/2 inch | 1-1/2 inch |
| Hose Size (Vent) | 5/8 inch | 5/8 inch |
Common Concerns Answered
Will this deck fill provide a completely watertight seal in all conditions?
While generally robust and designed for secure sealing, occasional reports indicate that the cap seal may not be perfectly watertight under extreme environmental conditions, though it meets stringent performance standards.
Is the price point higher than basic deck fills?
Yes, the initial investment is higher than basic deck fills due to the comprehensive integrated safety features, emissions control, and advanced refueling technology, which provide significant long-term value and compliance.
How does this compare to standard deck fills without pressure relief?
This Attwood deck fill significantly exceeds standard deck fills by incorporating crucial pressure relief systems, automatic diurnal emission controls, and high-flow vacuum valves, all while meeting critical EPA and CARB certifications, which standard units lack.
Frequently Asked Questions
What is the purpose of a pressure relief system in a boat's fuel tank?
A pressure relief system in a boat's fuel tank is crucial for safety. It prevents dangerous over-pressurization caused by fuel expansion due to temperature fluctuations or vapor generation, and also manages vacuum conditions to prevent tank collapse.
How does the Attwood Deck Fill with Pressure Relief System prevent water from entering the fuel tank?
The design incorporates an angled cap and sealing mechanism specifically engineered to prevent water from pooling around the fill opening and subsequently entering the fuel tank during washdowns or adverse weather.
What is the pressure release threshold for the overpressure relief safety valves in this Attwood deck fill?
The overpressure relief safety valves are engineered to activate and release excess pressure when the internal fuel tank pressure exceeds 1 psi.
Is this Attwood deck fill compatible with ethanol-blended fuels?
Yes, this Attwood deck fill is fully compatible with ethanol-blended fuels, ensuring its usability with modern marine fuel formulations.
What are the hose sizes this deck fill is designed to fit?
This deck fill is designed to fit a 1-1/2 inch fill hose and a 5/8 inch vent hose, which are standard sizes for many marine fuel systems.
