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Wellhead Solution
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HomeWellhead solutionDouble Packoff Flange
Double Packoff Flange - “DSPF” Packoff Flange
Double Packoff Flange - “DSPF” Packoff Flangeis often used in the oilfield when drilling, The double packoff flange provides double" P" seal for sealing the casing.
The double packoff flange also used as an intermediate crossover flange when a restricted area ring gasket is used in the smaller diameter top groove. When a crossover is used, the top connection can be exposed to a higher pressure than the original rated working pressure. The double molded elastomer P seals are energized by injected the high pressure grease.
CCSC has many sizes and pressure ratings "DSPF" used for drilling applications.
Avalability Specification
| Working pressure | 2000PSI-20000PSI |
| Material class | AA –HH |
| Specification class | PSL1-PSL4 |
| Performance class | PR1-PR2 |
| Nominal Size | 7" - 21-1/4" |
| Internal casing size | 5-1/2" - 13-3/8" |