Valve parts will not damage PDC Bits.
Operator controlled buoyancy regulated by filling casing at surface.
Double Valve acts an extra back pressure valve.
Available from sizes 4-1/2" till 36" + any special sizes configurations.
Available with shoes with cement nose, aluminum nose or bladed nose.
API standard threads are cut in-house as are numerous selected premium threads up to certain sizes. Other premium and custom threading can be supplied and cut through our extensive vendor base.
Professional customer service team, professional after-sale services create a comprehensive high-quality, advanced technology, reliable products, which gives you a strong sense of security.
Professionals, professional skills and precision equipments insure that we can provide you with professional product customization service.
The best quality products, strict quality control system and good reputations established Saigao product's irreplaceable place.
Superb technical team with continuous technological innovation, closely follow the market's trend help you to create the highest performance products.