WELLHEAD EQUIPMENT

C21 Casing Hanger

The C21 is a wrap-around slip-type casing hanger. Its segmented slips bite into the casing and distribute the suspended load into the head bowl; annular sealing is provided by a separately selected packoff such as an H-type packoff.

Red C21 split slip-type casing hangerRepresentative equipment image. Final configuration is project-specific.

FUNCTION & PURPOSE

What the equipment does

  • Suspends light-to-medium casing loads
  • Distributes load evenly through segmented slips
  • Reduces casing deflection through controlled friction
  • Allows the primary packoff to be selected and installed separately
  • Interfaces with compatible C-22 or C-29 bowl geometry

AVAILABLE ARRANGEMENTS

Typical configurations

  • Casing-specific slip segments
  • Separate H-type or approved packoff
  • C-22/C-29 bowl compatibility subject to verification
  • Matched casing OD, weight and grade

TECHNICAL REQUIREMENT TABLE

Specification basis

Design basisAPI 6A / ISO 10423, subject to the approved purchase specification
Rated working pressureProject-specific; reference ranges shown where stated by the source product page
Temperature classSelected for the approved operating envelope
Material classSelected for standard, sour or corrosive service
PSL / PRConfirmed from the customer data sheet and applicable API 6A edition
DocumentationApproved drawings, material certificates, pressure-test reports and traceability records as agreed
DesignSplit, wrap-around, non-automatic slip hanger
Reference hanging capacityUp to 50% of casing-body yield, subject to supplier verification
Annulus sealSeparate packoff assembly
Load rangeLight to medium casing loads

Values are confirmed against the customer specification. Availability is subject to the approved scope, manufacturer capability and technical review.

TYPICAL APPLICATIONS

Where it is used

STANDARDS & DOCUMENTATION

Supply can be reviewed against API 6A / ISO 10423 and other project-specified requirements, where applicable. The agreed documentation package may include material certificates, dimensional records, pressure-test reports, inspection records, certificates of conformity, packing lists and traceability documents.

FOR AN ACCURATE OFFER

Information to include in your enquiry

TECHNICAL & COMMERCIAL ENQUIRY

Need c21 casing hanger?

Send the available RFQ, data sheet, drawing, equipment details or photographs. We will review the requirement and respond with any necessary clarification.

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