SINCE 1997,HNA has been an integrated engineering & manufacturing specialist recognized worldwide for its unique HIGH PRESSURE FORGING, WORLD TOP CLASS HEAT TREATMENT, PRECISE MACHINING Technology and high quality products in the O&G industry, by designing and fabricating HNA Valve Springs for Duplex, Triplex and Quintuplex pumps, which are 100% interchangeable to most of the global famous brands: Bomco, Honghua, TSC, Weatherford, Ellis Williams, Gardner Denver, Emsco , National, Oilwell, Ideco, Drillmec & other major types of models, and customized design and production available.  

Features:   

* High Pressure Forged valve spring

  AISI 1566 (65Mn) / Stainless Steel

(Or customized material)

* World Top Class Heat Treatment ensuring best mechanical properties (Tensile, Yield, Charpy Impact, Elongation etc) and Temperature & Corrosion Resistance Performance Exceeding API Standard for extended service life  

* Rated for drilling operation Pressure maximum 7500 PSI

* Extremely Long Service Life Far Exceeding API Standard

* Fully match with Roughneck, Supreme Valve, Mud King Valve, SWU Valve, and other major valve seat types,available in API 3# thru API 9# sizes, and Non-API Modified Type & Sizes 

* Product Series:

HNA-FE-V-G  :  HNA Valve Spring -- Forge, Available in API 3# thru API 9# sizes,and Non-API Modified Type & Sizes

Customized    Specific Design & Series of HNA Valve Spring -- Forged,

             API/Non-API Standard