Automatic and Unitised
Casing Hangers

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Automatic Casing Hanger (PCHA) is basically designed for heavy load service and is used for American Completion Tools Casing Head Housing 'PCHH' and Casing Head Spool 'PCHS' described earlier. When the Casing load is applied to the hanger, the top ring connected by the Pack-off and shoulder screw compresses the packing to seal the annulus pressure of the casing. This casing hanger is normally used for pressure ratings upto 3000 PSI. For ratings over 3000 PSI, type 'PSPO' Pack-off is used to prevent collapse of the pipe.

Unitised Casing Hanger (PCHU) can be used both for American Completion Tools Casing Head Housing (PCHH) and Casing Head Spool (PCHS) as described earlier. This Hanger is designed for medium or heavy load service. This hanger is normally latched around the pipe and lowered in casing head body. After the casing is landed, shoulder screws should be evenly tightened to affect a positive annular seal. The hanger may be used upto 3000 PSI WP. For ratings over 3000 PSI, 'PSPO' Pack-off is used to prevent collapse of the pipe.

Automatic and Unitised Casing Hangers
SPECIFICATIONS OF CASING HANGER
Nominal
Flange Size
Casing Size
4 1/2 5 5 1/2 6 5/8 7 7 5/8 8 5/8 9 5/8 10 3/4 11 3/4 13 3/8 16
9 PCHA
PCHU
PCHU PCHA
PCHU
                 
11 PCHA
PCHU
PCHA
PCHU
PCHA
PCHU
PCHA
PCHU
PCHA
PCHU
PCHA
PCHU
PCHA          
13 5/8         PCHA
PCHU
PCHA
PCHU
PCHA
PCHU
PCHA
PCHU
PCHA      
16 3/4               PCHU PCHA
PCHU
PCHA PCHU  
20 3/4 &
21 1/4
                    PCHA
PCHU
 

Nominal
Flange Size
Casing Size
4 1/2 5 5 1/2 6 5/8 7 7 5/8 8 5/8 9 5/8 10 3/4 11 3/4 13 3/8 16
9 PS PS PS                  
11 PS
PSPO
PS
PSPO
PS
PSPO
PS
PSPO
PS
PSPO
PS
PSPO
PS          
13 5/8     PS
PSPO
PS
PSPO
PS
PSPO
PS
PSPO
PS
PSPO
PS
PSPO
PS      
16 3/4               PS
PSPO
PS
PSPO
  PS
PSPO
 
20 3/4 &
21 1/4
                PS
PSPO
  PS
PSPO
PS
PSPO