Wellhead drilling spool 11" x 3k - 13 5/8" x 3koil well api 16a driling spool 11" x 3k - 13 5/8" x 3k overview of the drilling spool 11" x 3k - 13 5/8" x 3k the 11" x 3k - 13 5/8" x 3k drilling spool is used to connect with bop for oilfield drilling work.The wellhead drilling spool is made of alloy steel and heat-treated. It is used on the oil and gas well which is with a pressure of less than 105mpa. It is tested according to api 16a specificationbefore shipping to be used safely.The 11" x 3k - 13 5/8" x 3k spool applies to drilling high pressure oil and gas well, the connecting of the by passage of the spool with the valves and pipes will play not only a role of blowout and choking , but also a role of connecting the bop with the wellhead. installation and maintenance of wellhead drilling spool* being used when connecting with the bop and the casing head.*.The steel ring grove should be cleaned before installation.*.Tighten studs averagely of connecting the spool with the bop. specification of the wellhead drilling spool 11" x 3k top flangebottom flange11"2000psi (279.4mm14mpa)11"2000psi (279.4mm14mpa)11"2000psi (279.4mm14mpa)13-5/8"2000psi (346.1mm14mpa)11"3000psi (279.4mm21mpa)11"3000psi (279.4mm21mpa)11"3000psi (279.4mm21mpa)13-5/8"2000psi (346.1mm14mpa)11"3000psi (279.4mm21mpa)13-5/8"3000psi (346.1mm21mpa)11"5000psi (279.4mm35mpa)13-5/8"3000psi (346.1mm21mpa) wellhead drilling spool 11" x 3k - 13 5/8" x 3koil well api 16a driling spool 11" x 3k - 13 5/8" x 3k
