The Civacon ALVN Pressure-Activated Fill Cover (PAF) is made from high-strength aluminum, providing protection against rust as well as weight reduction. Civacon's ALVN Manhole Cover weighs up to 30% less than competitive DOT406 Manhole Covers on the market today.
The 10 in. PAF is factory set to open at 3.63 psig, and features easy set pressure adjustability without the worry of compromising emergency venting capacity.
The Civacon ALVN Manhole Cover is the perfect choice for new construction, or as a replacement for all DOT406 and older MC306 cargo tanks. It meet the requirements for DOT 49CFR178.345 5 (36-psig Test Pressure), and the precision design and construction limits the amount of product leakage in a rollover situation to less than one liter as required by standards.
Note: Includes gasket and clamp band.
Features
- Fully compatible and compliant with NFPA 407-17's primary shutdown system requirements
- Pressure relief setting 3.63 psig
- Easy set-pressure adjustability
- Rated emergency venting capacity of 500,000 scfh at 6.25 psig
- Includes (1) Pressure/Vacuum Normal Vent
- Retrofits to existing weld rings
- Reversible PAF opening (hinge) direction
- Standard secondary latch
- Offset cover includes holes for the Vapor Vent and Overfill Sensor, plus a 1/4 in. NPT port for a plug
Specifications
- Series: ALVN
- Part: ALVN601110
- Type: Offset Manhole Cover with NV3000 Normal Vent, No Weld Ring
- Dimensions: 16 in. Cover and 10 in. Fill Opening
- Material: Aluminum
- Gasket: Buna-N Standard, Optional Materials Available
- Temperature Range: Operating Temperature 40°F (-40°C) to 160°F (70°C)
Downloads
ALVN Maintenance and Testing Manual (PDF Download)
ALVN Gasket Replacement Manual (PDF Download)
