? Product Description ? It meets API standard and has won national utility model patent, the patent number ZL 2008 2 0226374.5. ???? Float valve is a new-style blowout preventer within the drilling tools. The structure of floating valve is so scientific that it can avoid corruption and short lifetime which are the common problems of their kind to insure of the protection in the whole procedure of drilling. It can be work under the pressure from 5000psi to 15000psi. ?

Specification(mm)	drill collar size(inch)	Effective Length(mm)	Working Pressure(MPa)	Connection
FJ105	4-1/8"	510	70 or 105	NC31
FJ121	4-3/4"	500	70 or 105	NC38
FJ165	6-1/2"	700	70 or 105	NC46/NC50
FJ172	6-3/4"	700	70 or 105	NC46/NC50
FJ178	7"	700	70 or 105	NC50
FJ203	8"	750	70 or 105	NC56/6-5/8"REG

Packaging & Shipping ?According to the customer's requirment. ? Our Services ?We have developed a complete, transplantable enterprise management and operation mode of design, production and after-sale service, with the spirit of "unity, progressive, innovative and efficient," and design tools of three-dimensional solid, finite element analysis, motion simulation and so on. ? Company Information ? Nera Petroleum Mechanical Manufacture Co.,Ltd, located in the Chinese second largest oilfield- Dongying Industry zone ,is a high-tech private limited company which integrates R&D, production and sales service development, production and sales to a full line to manufacture the oil tools. Its registered capital at 50.1million Yuan, workshop covers 10000m m2, Fixed assets 20 million Yuan. current assets 48 million Yuan, current liabilities 5,000,000 Yuan and net assets of 49 million yuan. The total number of company employees 86 people, including10 senior engineers, 25 senior accountants, accountants 5, and assistant Accountant 5 people. Taking researching and developing new downhole drilling tools as the base,our company makes it as strategic positioning to develop the production equipment in the petroleum exploration field and modernize downhole drilling tools. On the basis of accepting European and American advanced technology, following closely the forefront of the international peer, with the international advanced level ,our company has independently developed adjustable various diameters stabilizer, Hydraulic various diameters stabilizer, hydraulic pressure damping load, float valve, multifunctional Kelly valve, MWD/LWD matching tools, multi-branch wells completion tools, vertical drilling tools, test stand of directional well test and so on.At present, it is an leading company with strong ability in petroleum drilling tools R&D technology at home. ? FAQ ? how to order ,size ,connection ,pls ?specify special requiments ?