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Wellhead & Pressure Control
BOP Rubber Elements and Seals
Annular elements, ram packers and well-control seals selected by BOP model, 120-760 mm bore references, 21-105 MPa pressure class and verified elastomer compatibility.
Compatibility and service envelope
Reference fields for quotation comparison. Final values must be confirmed in the signed manufacturer datasheet.
| Parameter | Reference value | Notes |
|---|---|---|
| Referenced bore envelope | 120-760 mm | Match the exact BOP model and drawing |
| Referenced pressure classes | 21-105 MPa | The installed preventer rating controls |
| Service definition | Minimum and maximum temperature, H2S and mud system | Use these inputs for compound review |
| Part identification | Annular element, ram packer, top or door seal | Provide nameplate and part photographs |
Product overview
Match the installed preventer
BOP rubber parts are geometry-controlled pressure components, not generic rings selected by outside diameter. Public well-control information reviewed for this page lists sealing-component families associated with 120-760 mm bores and 21-105 MPa pressure classes. Those values provide a sourcing envelope, while the installed BOP maker, model, serial number, ram type and drawing determine the actual replacement.
Elastomer service conditions
Temperature, hydrogen sulfide, oil-based mud, completion brine and stored shelf life affect compound selection. The RFQ should state minimum and maximum temperature, drilling-fluid system, expected pressure cycles and whether the part is an annular packing element, ram packer, top seal, door seal or secondary seal. Color and appearance are not reliable evidence of compound or interchangeability.
Dimensional and traceability checks
Upload clear photographs of markings, the old part and the BOP nameplate. Include measured dimensions only as a cross-check, because used elastomer may be swollen, compressed or damaged. Request batch identification, cure date, storage instructions, dimensional inspection and any required material or performance records with the quotation.
RFQ checklist
Separate routine replacement quantities from emergency spares and state the required delivery window. The proposed part should be reviewed against the OEM drawing or an approved compatibility record before installation. API 16A should be named only where it governs the ordered equipment and required documentation; a product-family webpage does not prove certification.
Technical reference trail
These public references support the equipment family and selection context. They do not imply dealership, authorization or a guaranteed order specification.
Frequently Asked Questions
Are BOP seals interchangeable at the same bore size?
No. Preventer model, cavity geometry, ram type, pressure class and compound must all match the approved replacement basis.
Which fluid details should be supplied?
State water- or oil-based mud, completion fluid, H2S, additives, temperature range and expected exposure duration.
Why are old-seal dimensions insufficient?
Used elastomer can swell, shrink and take a compression set, so dimensions must be checked against the drawing and BOP identification.
Submit RFQ for BOP Rubber Elements and Seals
Send product, quantity, specification and destination details so the requirements can be reviewed with potential suppliers.
Technical and RFQ References
Check common units, standards and purchasing terminology, then build a structured request for this equipment.
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