SINCE 1997,HNA has been an integrated engineering & manufacturing specialist recognized worldwide for its unique USA Imported Nitrile Rubber/Polyurethane and Precise Machining Technology and high quality products in the O&G industry, by designing and fabricating HNA Assembled Pistons with Replaceable NBR/Polyurethane 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:                                

*  Forged & World Top Class Heat Treated Piston Hub,

 AISI 5140/4140/4135 (40Cr/42CrMo/35CrMo)

(Or customized material)

*  Assembled Type: Replaceable rubber insert reduces operating expense

*  USA Imported Nitrile rubber NBR with:

   Extrusion/Abrasion Resistance: Perfect

   Chemical/Corrosion Resistance: Good

   Temperature Resistance:Maximum 250F(120C)

   Pressure Resistance: Maximum 5000 Psi  

*  LGS Handle Application: Perfect when <10%

*  WBM PPG Application：Perfect for all conditions

*  Liner Application: Zirconia, Metal

*  Misalignment Handle Application: Perfect

*  Drilling Fluid Application:

Perfect for Water Based Mud(WBM), Synthetic Based Mud(SBM),Emulsion;

Very Good for Oil Based Mud(OBM), Clear Water

Not Recommended for Salt Water/Sea Water

*  Rubber Color: Black

*  Shelf Life: Very Good (>12 months and <18 months, under proper storage condition)

*  Long Service Life Exceeding API Standard

* Chinese High Quality Replaceable NBR Rubber & USA High Performance Replaceable NBR Rubber for Options

* Chinese High Quality Replaceable Polyurethane & USA High Performance Replaceable Polyurethane for Options(Remark: Different Polyurethane has different performances, please refer to Bonded Piston chapters for options of polyurethane)

* Fully interchangeable with major piston types, Available Size: 3”(75mm) -- 8”(200mm),Series A,B,K,L

*  Product Series:

HNA-FE-P-RNC:HNA Assembled Piston with Chinese High Quality Replaceable NBR Rubber: Available Size: 3”(75mm) -- 8”(200mm),Series A,B,K,L

HNA-FE-P-RNU: HNA Assembled Piston with USA High Performance Replaceable NBR Rubber: Available Size: 3”(75mm) -- 8”(200mm),Series A,B,K,L

HNA-FE-P-RPC:HNA Assembled Piston with Chinese High Quality Replaceable Polyurethane: Available Size: 3”(75mm) -- 8”(200mm),Series A,B,K,L

HNA-FE-P-RPU: HNA Assembled Piston with USA High Performance Replaceable Polyurethane: Available Size: 3”(75mm) -- 8”(200mm),Series A,B,K,L

Customized Specific Design & Series of HNA Assembled Piston Assembly With/Without Replaceable NBR Rubber/Polyurethane, API/Non-API Standard