Bow Spring Centralizers Ranges from 4-1/2" to 20"

Hinged Non-Welded Bow Spring Centralizer

• It is consists of bows, end collar with hinges and hinge pins. The formed bows are attached the end collar using rivets onto the hinged end collars. And the centralizers use hinged pins to secure the end collars together around the casing.
• The hinged designs is convenient for assemble and storage. When assembles, just place the two assembled haves on the pipe and insert the pins in the end collar hinge. Unassembled centralizers are packed and stored in compact package, which can reduce transporting and storage space and costs.
• Hinged non-welded bow spring casing centralizer is a simple, low cost spring design which can performs well in both vertical and slightly deviated wells as the bow springs are slightly larger than the wellbore.
• Combines the highest restoring force with the lowest starting force at all bow heights.
• The bows are heat treated in special furnace to ensure centralizers to provide the best centralization as well as help in faster running of casing.
• The bows angles are available in a range to accommodate any well profiles.
• Available in single bow or double bow design.
• Available in sizes 4-1/2" to 20" and special sizes are also available.

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Single bow hinged non-welded centralizer

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Double bow hinged non-welded centralizer

Hinged Non-Welded Positive Casing Centralizer

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• Hinged design for easy transporting, storing and installing.
• Use hinged pins to secure the hinged end collars together around the casing.
• Straight formed positive bars are attached onto the hinged end collar with rivets.
• Easy installation and normally run over a stop collar or coupling.
• U-profile design instead of spring bows can ensure maximum fluid passage and reduce frictional drag force in deviated hole conditions.
• Almost 100% standoff when run inside a cased hole.
• Flat U profile is fitted in self locking retaining lips for firm and positive hold.
• Available in sizes 4-1/2" to 20" and special sizes are also available.

Hinged Welded Bow Spring Centralizer

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• It has more restoring force than non-welded centralizers.
• The bow springs are strongly welded to the end collar under required temperature and condition with extra low hydrogen coated electrodes.
• Hinged design is easy to transport, store and installation.
• End collars are designed with a reinforcing rib stamped into the end collar to give maximum structural toughness.
• Bow spring heights can be adjustable.
• Available in sizes 4-1/2" to 20" and special sizes are also available.

Slip-On Welded Bow Spring Centralizer

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• It is composed of welded bow springs and seamless end collars.
• Slip on centralizers are designed with roll formed peripheral ridges to provide extra rigidity.
• It is directly installed on the pipe by slipping on and can be provided with stop collars with set screws.
• Adjustable bow heights for optimum starting and restoring force.
• Powder coating or painting to prevent from rust and corrosion in well bore.
• Available in sizes 4-1/2" to 20" and special sizes are also available.

Slip-On Welded Positive Casing Centralizer

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• Specially designed with flat bottom U profile with different depths permit maximum fluid passage.
• Bow springs are strongly welded to seamless end collars under required temperature conditions with correct grade electrode.
• Provide 100% standoff (concentricity) when run inside a case hole.
• Just install onto the casing by slipping on the centralizer.
• Available in sizes 4-1/2" to 20" and special sizes are also available.

Slip-On Welded Turbolizer Bow Spring Centralizer

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• It has deflector blades fitted on standard bow springs, which creates difference from the standard centralizers.
• The special blades of turbolizer centralizer are riveted to heat-treated bows and are designed to deflect fluid flow in a turbulent spiral.
• It helps break-up drilling mud when running casing and improves mud removal during circulation.
• Collars are specially designed with roll formed peripheral ridges when provide extra rigidity.
• Slip-on turbolizers for casing pipe are provided for direct installation on pipe by slipping on and can be provided with setscrew for elimination of stop collar.
• These centralizers undergo a special iron phosphate coating process to prevent from rust when coated with special polyester powder.
• All common centralizer sizes have been tested and validated to API Specification 10D to provide reliability and durability during operations.
• Available in 4-1/2" to 20" sizes and special sizes are also available.