Home > Products > Downhole Tools > Float Valve (Flapper Type Check Valve)
Float Valve (Flapper Type Check Valve)
- 50 Piece / Pieces per Month
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Product Details
Place of Origin: | Guizhou, China | Model Number: | Flapper | Type: | Other, Float Valve |
Machine Type: | Drilling Tool | Certification: | API | Material: | Carbon Steel |
Processing Type: | Forging | Use: | Well Drilling |
Product Description
Specifications
1)API Spec2)superior products
3)high quality after service
4)best price
5)deliver promptly
The Float Valve
This Float Valve is normally installed in a standard bore-back of the bit sub, to provide fluid flow control at the bottom of the drill stem. It also prevents backflow of cuttings from plugging the drill bit jets while making connections.
When the flapper is held open by the built-in latch, the drill pipe fills from the bottom, This eliminates the mess and lost time of filling operations, Running in with the flapper open also reduces the potential of formation damage from pressure surges caused by the bit acting as a piston or ram as it is lowered into the hole. The flapper latch is automatically released by initial circulation of drilling fluid through the valve.
During normal circulation, the flapper is fully opened and out of the way. The large bore of the valve provides minimum flow restriction.
When circulation is stopped, the flapper is closed by the flapper spring, preventing backflow through the bit.
When run in the closed position, the valve allows the drill pipe to be floated in while only partially filled with drilling fluid. This lowers the effective weight of the drill string and reduces strain on rig equipment
Contact Us
- Goldenman Petroleum Equipment Co., Limited
- Contact nameJane Qi
- Phone0086-546-8058559
- AddressNo. 67, Fuqian Street, Dongying District
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