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 Seats-- One-Piece Forged with Full Open, 4 Web, 3 Web, 2 web Design 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 One-Piece integral valve seat 

  AISI 8620(20CrNiMo)  AISI 4119(20CrMnMo)

(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  

* World Top Class Precise Machining Crafts offer high precision machined components for a close tolerance fit. Special care is taken for the dimensional matching of the valve seat and body working angle for ensuring longer service life even under extreme working conditions

* Full open, 4 web, 3 web, 2 Web valve seat types specifically designed to match with Bottom Guide Type 4 Wing, 3 Wing, Central Stem Guide Type, and custom designed valve body. 4 Web, 3 Web, 2 Web valve seat has higher strength circular I-beam construction which reduces the seat area blocking the flowing path, and easier to pull out.  

* Precisely tapered design of the insert matching with the seat provides evenly distributed loading characteristics and therefore ensures better sealing performance.Double angle 55°, 45°, or other specified taper design available to match with different valve type, pump type and applications.

* API Valve Seat and Non-API Modified Valve Seat Available. While matching with HNA valve, HNA Valve Seat Valve Seat offers large metal-to-metal bearing area surface, even loading of the seat deck in the fluid end module, and therefore promotes longer service life and maximum fluid flow

* High Extrusion/Abrasion Resistance:Extremely Perfect

 High Chemical/Corrosion Resistance: Extremely Perfect

  High Pressure Resistance: Maximum 7,500 Psi  

* Extremely Long Service Life Far Exceeding API Standard(>800 Hours)

* Fully interchangeable 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-S-FO : HNA Valve Seat -- One-Piece Forged, Full Open,

           Available in API 3# thru API 9# sizes, and Non-API Modified Type & Sizes 

HNA-FE-S-W4 : HNA Valve Seat -- One-Piece Forged, 4 Web,

           Available in API 3# thru API 9# sizes, and Non-API Modified Type & Sizes 

HNA-FE-S-W3 : HNA Valve Seat -- One-Piece Forged, 3 Web,

           Available in API 3# thru API 9# sizes, and Non-API Modified Type & Sizes 

HNA-FE-S-W2 : HNA Valve Seat -- One-Piece Forged, 2 Web,

           Available in API 3# thru API 9# sizes, and Non-API Modified Type & Sizes 

Customized  Specific Design & Series of HNA Valve Seat -- One-Piece Forged,

             API/Non-API Standard