Bleed-off Sub is to bleed the residual pressure in lubricator to disassemble the PCE, after
the device lifted from downhole to the lubricator and close the wellhead valve.The pressure
meter on the Bleed-off Sub can display the wellhead pressure.When bleed-off,anticlockwise
handle of stop valve and open the mushroom valve to bleed off.Sometimes the crossover
sub at the bottom of the device can directly connect the whole set PCE on the wellhead.
1.The two ends of the short spray nozzles are fast connections by the siren,and the upper
and lower ends are standard Bowen,Otis or saifu connections;
2.All quick joints equipped with the short spray joint are open type,with good spraying effect;
3.The pressure bearing part adopts high strength alloy steel,which has good corrosion resistance.
API Certification--11D1 API Certification--16C
API Certification--6A API Certification--16A