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KLEERBAND® Transparent Flange Protectors

KLEERBAND flange protector
KLEERBAND® is a quick, easy and highly effective way to apply protection and prevent corrosion of the flanges.
The KLEERBAND® flange 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.
Transparent and versatile
The KLEERBAND® flange protectors are manufactured of extruded PVC. It allows continuous visual inspection of the flange surface without removal of the protector. The polyvinyl chloride 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.
Maintenance friendly and reusable
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 moisture‑proof seal can hold up to 0.3 bar of overpressure. In addition, the protectors are non‑corroding, providing many years of service life, and are completely reusable.
Specifications
Flange diametersNominal pipe sizes from DN15 to DN600 (½” to 24”)
Suitable flange types and series
    Standard DIN EN 1092 flanges
    PN2.5 | PN6 | PN10 | PN16 | PN25 | PN40 | PN63 | PN100 | PN160 | PN250 | PN400
    ANSI Flanges
    Class #150 | #300 | #400 | #600 | #900 | #1500 | #2500)
    API integral flanges
    API obsolete flanges
    AWWA flanges
    Other flange types are possible upon request
Band materialTransparent PVC
High temperature versions of stainless steel (304L or 316L) with neoprene gasket are available upon request
Band width
    40 mm (1 ½”) – standard size
    63 mm (2 ½”) – wide size
    Wider widths are available in original design upon request
Hardware materialStainless steel
Operating temperature−25 … +75 °C (−22 … +167 °F)
High temperature versions of stainless steel (304L or 316L) are available upon request
Low temperature brittleness−40 °C (−40 °F)
Tensile strength16.7 MPa (2425 psi)
Elongation435 %
Design
KLEERBAND flange protectors

Why to choose KLEERBAND®?

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 corrosion protection 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.
KLEERBAND Flange Protectors
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.
KLEERBAND Flange Protectors
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 trowelled 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, messy and difficult to remove and dispose safely.
KLEERBAND Flange Protectors
Why protect flanges the old way when we have 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.
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