Aluminum Pontoon Internal Floating Roofs
- High section modulus main I beam and sheeting clamp channel
- Large diameter, high strength support legs at the rim and center deck are connected to the IFR frame and not the pontoons
- Easy to assemble, aluminum alloy interlocking system
- All components will pass through a 24" diameter man way
- All stainless steel fasteners
- Heavy duty 1000lb./ft2 load capability
- Designed to meet or exceed the requirements of API 650 App H.
- Hybrid IFR with all-stainless-steel wetted parts available
- Fixed roof suspended IFR also available.
Floating Roof and Seal Systems
Applications
- Low profile secondary seal for internal and external floating roof applications
- Primary shoe seal designed for easy and quick installation
- Heavy duty aluminum pontoon internal floating roof
- Floating roof deck drain system
- Fire suppression system
- Floating suction systems
Floating Roof Drain System
ZIRCO offers several types of Roof Drain Systems that drain rainwater off External Floating Roofs. While conventional hose drains and metal clad "Multi-Flex" drains are available, we features its BTE Drain System, providing the best features of both rigid pipe systems and flexible hose systems. These “time-tested" and proven drain systems provide maintenance free dependability and long service life.
The BTE flexible joint is designed with inner and outer stainless steel wire helixes to maintain hose rigidity when subjected to internal or external pressures. Multiple inner layers of polypropylene and polyester materials in the flexible joint prevent product permeation through the hose, even from such products as MTBE. The outer layers of this woven fabric protect the inner hose materials. Its high design pressure also makes the BTE joint suitable for use with fire fighting foam delivery systems.
The flexible joint pivot-pin design uses stainless steel bushings and spacers to eliminate binding and assure flexibility. No lubrication is required. The reinforced side plates transfer the load around the flexible hose, eliminating stress on the hose end connections and minimizing the possibility of hose end failure.
These side plates are available in standard carbon steel (galvanized or prime coated) and stainless steel materials.
BTE flexible joints are attached to Schedule 40 carbon steel piping to provide a rigid, maintenance-free drain system. Piping diameters of 3" through 10" are readily available from stock.
Advantages of the BTE compared to Swivel Joint Systems:
- Straight-line design - no offsets to cause unbalanced loading
- No O-rings, bearings or seals
- No moving parts to lubricate
- Designed for submerged service
- No flow restrictions
- Load Stresses transferred across joint, not through it
- Easy installation
Low Profile Secondary Seal
- Normal operating height is 12" with a nominal rim space dimension or 8"
- Light weight compared to other secondary seals
- Vapour barrier fabric is installed on the outside for ease of inspection
- Excellent vapour sealing ability
- Extruded durable Nitrile/PVC tip compatible with most stored products
- Stainless steel construction for long service live.
Shoe Primary Seal
- In-service installation available
- Unique Scissor type hanger mechanism maintains levelness of metallic shoe, eliminating seal gap
- Accommodates wide variations in rim-space
- Multiple Pusher Bars and Pusher Plates for uniform pressure of shoe on tank shell
- Quarter-hard stainless steel pusher assemblies for extended service life
- No coil springs or under-roof counterweights
- External and Internal floating roof designs available
- Compatibility with virtually all stored products
- Compatibility with welded or riveted tank shells
- Compliance with federal, state and local regulations
- Available with Secondary Seal Systems
- Available with wax scrapers