The Washington Series 1300 is our most popular rotating control head. It is designed to seal off the drill string components continuously and divert all cuttings and debris away from the rig.
Available in various flange sizes, typically either 13-5/8”, 20”, or 26-1/4”. The maximum height (A) of the unit is usually less than 36” (915 mm).
It is very important to realize that a rotating control head is NOT a blow-out prevention tool, but intended solely for sealing around the drillpipe and diverting wellbore returns away from the rig floor. No API/IADC standards exist for pressure testing rotating control heads, and thus caution is advised whenever high (over 250 psi for this model) pressures are exerted on the rotating control head sealing elements.
Special types of rotating head sealing elements (“rubbers”) exist for different applications, e.g. regular, geothermal, and those resistant to hydrocarbons.