China factory customized 8 1/2 Inches Pdc Drill Bit - Float Valve Sub/Check Valve – LUQI factory and manufacturers

factory customized 8 1/2 Inches Pdc Drill Bit - Float Valve Sub/Check Valve – LUQI

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We can always satisfy our respected customers with our good quality, good price and good service due to we are more professional and more hard-working and do it in cost-effective way for Electric Oil Pump , Hard Facing Stabilizer , Hard Rock Drilling , Leading the trend of this field is our persistent goal. Providing first class products is our aim. To create a beautiful future, we would like to cooperate with all friends at home and abroad. Should you have any interest in our products, please do not hesitate to contact us.

factory customized 8 1/2 Inches Pdc Drill Bit - Float Valve Sub/Check Valve – LUQI Detail:

Product Description of Float Valve Sub

Float valve Sub/Check valve is an important tool in petroleum exploration and drilling engineering. The float valve sub is connected at upper part of drill bit. The float valve sub is near the bit connecting thread. The float valve sub can also be used at different necessary position of drill string when required. The main application is, when connected with single piece pipe, it prevents mud from coming in and up blocking the hole. When blowout takes place, blowout in drill string will be avoided because nozzle is closed automatically by valve cap of the float valve assembly .

Main Technical Parameters

Model	Sub OD(mm)	Connection	Valve OD (mm)	ID (mm)
FFJT241	Φ243.1	7-5/8 REG B×B	Φ121 (5F6R)	Φ76.2
FFJT228	Φ228.6	7-5/8 REG B×B	Φ121 (5F6R)	Φ76.2
FFJT209	Φ209.6	6-5/8 REG B×B	Φ121 (5F6R)	Φ71.4
FFJT203	Φ203.2	6-5/8 REG B×B	Φ121 (5F6R)	Φ71.4
FFJT178	Φ177.8	4-1/2 REG B×NC50 B	Φ88 (4R)	Φ71.4
FFJT165	Φ165.1	4-1/2 REG B×NC50 B	Φ88 (4R)	Φ71.4
FFJT159	Φ158.8	4-1/2 REG B×NC46 B	Φ88 (4R)	Φ71.4
FFJT127	Φ127	3-1/2 REG B×NC38 B	Φ61 (2F3R)	Φ50.8
FFJT105	Φ104.8	2-7/8 REG B×NC31 B	Φ61 (2F3R)	Φ38.1

Product Description of Float Valve Core

The float valve core is a one-flow valve and is set in the inner cavity of the float valve joint, which can effectively prevent formation and wellbore annulus fluids from gushing out from the drilling tool, thereby ensuring well control safety.

Technical Parameters

Vale Size	D Diameter or Valve	R (D plus 1/32) Diameter Recess for Valve	L Length of Valve	T* Diameter of Recess for Battle Plate	Model F ID or Valve
1R	1-21/32	1-11/16	5-7/8	1-5/16	1
1F-2R	1-29/32	1-15/16	3-1/4	1-1/2	1-1/4
2F-3R	2-13/32	2-17/16	6-1/2	1-29/32	1-9/16
3F	2-13/16	2-27/32	10	2-17/16	1-7/8
3-1/2-1F	3-1/8	3-5/32	10	2-11/16	1-7/8
4R	3-15/32	3-1/2	8-5/6	2-15/16	2-5/16
4F	3-21/32	3-11/16	12	3-1/4	2-1/2
5R	3-7/8	3-29/32	9-3/4	3-3/8	2-3/4
5F-6R	4-25/32	4-13/16	11-3/4	4-9/32	3-1/4
6F	5-11/16	5-23/32	14-5/8	5-3/16	4-1/8

Product detail pictures:

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With a positive and progressive attitude to customer's interest, our enterprise continually improves our products excellent to meet the wants of customers and further focuses on safety, reliability, environmental requirements, and innovation of factory customized 8 1/2 Inches Pdc Drill Bit - Float Valve Sub/Check Valve – LUQI , The product will supply to all over the world, such as: Finland, Canada, Canberra, With good quality, reasonable price and sincere service, we enjoy a good reputation. Products are exported to South America, Australia, Southeast Asia and so on. Warmly welcome customers at home and abroad to cooperate with us for the brilliant future.

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