- The classic 3000 series of swing check valves are often used on both the blower and trailer.
- Huck bolted flapper assembly prevents loose parts from contaminating the product.
- Inspection lids can be removed to facilitate routine flapper assembly inspections (system must not be in service during inspections or repair).
- Aluminum body
- Bayloy inspection caps and flapper valve assembly
- Metal-to-metal seal
- Round flange units must be removed from the tank to facilitate repairs.