
9 5/8" L80 Mechanical Two-Stage Collar for Cementing. Double Locking Mechanism: Snapring lock and ball lock system ensure ports remain permanently closed after cementing. Adjustable Opening Pressure: Pressure can be adjusted and is not affected by hole angle. Fluid Trapping Prevention: Pressure-relief design prevents fluid trapping during the closing phase. Durable Cast Steel Material: Constructed from cast steel with spray-paint surface treatment for longevity. API Certified Manufacturer: Holds API 5CT, API 6A, API 11AX, API 11E, and API Q1 certifications. 1-Year Warranty Coverage: Comprehensive 1-year warranty provided for all mechanical equipment. Customizable Thread Options: Available in Vam, Btc, Ltc, and Stc thread types to suit specific needs. OEM and ODM Services: Full OEM and ODM services available with 8 dedicated R&D engineers.