Double Flapper Check Valve For Coiled Tubing Tool String Safety Valve

The Double Flapper Check Valve is a safety valve connected to the coiled tubing connector.The function of double flapper check valve is to prevent wellbore fluids from entering the CT string in the event of failure or damage to the coiled tubing string or surface equipment, while allowing fluid pumped through the CT string to enter the wellbore. The Double Flapper Check Valve has two flapper cartridges which can be dissembled and replaced quickly. In the CT string has a pinhole, the downhole check valve assembly is the primary well control barrier. It is generally run directly below the connector.

Maximum flow area through the flapper cartridges reduces unnecessary back pressure on the surface pumps. The flow path through the flapper cartridges does not restrict the passage of balls or darts if required during operations such as cementing.

Specification of Double Ended Roll-On Connector

ZZ TOP Oil Tools Co., Ltd located in XI’AN City in China, we are in full service on design, production and supply of oilfield downhole tools and Wellhead Equipment.

Over more than 10 years, we become a fast growing organization, now our two sub-factories, equipped with CNC lathes, Miller, deep-hole drilling &boring machine and other advanced machines, have enough production capacity to meet the customers’ requirement. And we build a professional & strong team including technical, sales, logistic and leading management department, which make our company success of manufacturing and providing cost-effective downhole tools and create added value for customers around the world.

Now our tools are supplied to worldwide and enjoy the good reputation.We always focus on providing the our clients with highly efficient & expertized service and approach each enquiry with meticulous attention to technical specifications and insist on “Traceability, Serialization” for each tools. We will keep innovating and providing more durable products and reliable service for worldwide customers.