Kleerband® flange band protectors
- Quick, easy and effective way to apply protection and prevent corrosion of the flanges
- Moisture-Proof Seal
- Non-Metallic Grease Injection Fitting
- Safety Relief Vent
Kleerband® Flange Band Protectors are designed to protect studs and gaskets on raised face and ring type joint flanges from atmospheric corrosion encountered in chemical plants, refineries, gas plants, offshore platforms, onshore oil fields, ships, paper mills and underground pipelines. They are also designed for use on cathodically isolated flanges to prevent foreign matter from shorting out or bridging over an isolating gasket.
All Kleerband® Flange Protectors are equipped with an exclusive safety relief vent and non-metallic grease injection fitting that assures complete loading of flange cavities. The extruded, transparent PVC band allows continuous visual inspection without removal of the protector and provides moisture-proof seal that can hold up to 0.3 bar of pressure. In addition, it is non-corroding, providing many years of service life and is completely reusable.
Kleerband® specifications
Transparent PVC
Stainless steel
Transparent PVC
Kleerband® Flange Protectors are manufactured of 100% virgin vinyl compound, which allows visual inspection of the flange surface without removing the flange protector. The polyvinyl chloride resin used to make this compound, as well as the plasticizers and all of the other ingredients, have been granted approval by the FDA in accordance with regulations.
| Flange diameter | from ½” to 144″ |
| Flange series | ANSI 150# to 2500# API integral flanges API obsolete flanges AWWA flanges |
| Band width | 1 ½”, 2 ½” (wider widths available in original design upon request) |
| Low temperature brittleness | -40 °C |
| Operating temperature | -25 … +75 °C |
 |
Stainless steel
Flange band protectors for high temperature applications are manufactured of 304 or 316 stainless steel 22 gauge band, stainless steel worm-gear strap, and grease fitting. An exclusive positive loading relief vent and plug assures the complete loading of flange. The gasket is made of 3/16″ closed cell neoprene for a positive seal. Flange Protectors are manufactured according to ANSI B16.5 specifications up to 24″.
 |
Interesting? Fill the form to get the quotation
Corrosion costs more than just money
Controlling corrosion and being aware of its damaging effects is paramount in pipeline maintenance. Flanges tend to be the most common trouble area in a CP System and need to be sealed properly to prevent leakage. The down time, coupled with the cost of cutting and welding a new flange, replacing flange bolts, nuts and seals, can become very expensive. These areas must also be cathodically isolated to prevent stray currents that can cause undo corrosion and eventual breakdown of the metal.
No more shrink sleeves
Shrink sleeve flange shields consist of multiple components (i.e. shrink sleeve, skirting, mastic filler material, masting tape), require numerous tools for installation (i.e. propane tank, torch, hose, regulator, knife, rags, approved solvent, temperature measuring device, hammer, screwdriver, pliers), along with safety equipment (i.e. gloves, goggles and a fire watch), and extra time and personnel to properly install. Due partly to its many installation steps, it is an awkward and complicated method of flange protection. Once installed, flanges cannot be inspected for corrosion without removal of the shrink sleeves and the necessity to repeat the entire installation process. In addition, shrink sleeves are very expensive and must be burned or cut off for removal.
No more tapes
Tape products must be wrapped completely around the circumference of the flange, though not all flanges can be accessed in this manner. Tape covered flanges are not easily filled and usually result in voids in the flange cavity where condensation forms. Tape products, besides trapping moisture, are non-fillable and not inspectable, making it necessary to cut away and dispose of this non-reusable means of protection.
No more wax fillers
Wax and epoxy fillers are both messy and difficult to apply. These fillers require many tools and are extremely time-consuming. Wax must be melted and poured into a form until it hardens. Epoxy must be injected under high pressure, or troweled on the flanges, leaving potential voids. Both wax and epoxy fillers have a tendency to shrink and separate from the flange surface over time, allowing moisture to migrate between the filler and the flange causing hidden corrosion growth. Once installed, wax and epoxy fillers are non-inspectable for corrosion, and messy and difficult to remove and dispose of safely.
Why try and protect flanges the old way when APS has the new, clear advantage to prevent corrosion?
With the use of Kleerband® Flange Protectors, nut & bolt protection caps, and Kleergel® corrosion inhibiting grease, flanges and hardware remain safe from hazardous and unsightly corrosion that can cause leakage, failure, or even shutdown of equipment.
