SINCE 1997,HNA has been an integrated engineering & manufacturing specialist recognized worldwide for its unique USA Imported Low Friction High Temperature High Pressure Dual Duro Polyurethane, Precise Machining and Bonding Craft Technology and high quality products in the O&G industry, by designing and fabricating HNA Slip Seal Low Friction High Temperature High Pressure Bonded Pistons with Dual Duro 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)

* Slip Seal Type, Dual Durometer Polyurethane Technology：

The harder lower part polyurethane provides a better adhesion and support to piston hub while the softer upper part polyurethane provides a more flexible and better sealing performance to liner. The Dual Durometer Polyurethane Technology realizes a perfect combination of polyurethane to enhance the extrusion & abrasion resistance, as well as high pressure resistance performance of the piston polyurethane and therefore leads to better sealing effect and longer service life in high pressure applications.

* The Slip Seal- Bull Nose Design Benefits:

 1)The precisely calibrated lip design blocks fluid and provides positive sealing against leakage for extended operation time,

2)The turned down lip design promises ease of assembly when piston is loaded into the liner, preventing cutting or tearing which makes piston change out quick and easier,

3)Increased abrasion and particle embedment resistance for longer service life

* Bonded Piston Type Benefits:

1)Increased structural strength with very high tensile strength for longer operation life,

2)Improved shock absorption and minimized shock when piston moves,

3)Enhanced sealing capabilities and sealing failure prevention via Reduced possibility for fluids to penetrate between the polyurethane insert and the piston hub

*USA Imported Low Friction High Temperature High Pressure Dual Duro Polyurethane with :

Proprietary formulation of blend of lubricating agents to reduce friction and enhance service life: Extremely Low Friction

  High Extrusion/Abrasion Resistance: Most Extremely Perfect because of Low Friction Feature

  Chemical/Corrosion Resistance: Perfect

  High Temperature Resistance: Maximum 300F(150C)

 High Pressure Resistance: Maximum 7500 Psi  

*  LGS Handle Application: Perfect when <6%

*  WBM PPG Application：Perfect for >11% condition, not recommended for <10%

*  Liner Application: Zirconia

*  Misalignment Handle Application: Requirement for high alignment operation

*  Drilling Fluid Application:

Perfect for Water Based Mud(WBM),Oil Based Mud(OBM),Synthetic Based Mud(SBM),Emulsion, Clear Water

Not Recommended for: Salt Water/Sea Water

*  Polyurethane Color: Red

*  Shelf Life: Perfect (<24 months, under proper storage condition)

*  Extremely Long Service Life Far Exceeding API Standard with Lower Friction Feature

* Chinese Low Friction High Temperature High Pressure Dual Duro Polyurethane & USA High Performance Low Friction High Temperature High Pressure Dual Duro Polyurethane for Options

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

*  Product Series:

HNA-FE-P-BSDRC:HNA Bonded Piston Slip Seal DR Type, with Chinese Low Friction High Temperature High Pressure Dual Duro Polyurethane: Available Size: 3”(75mm) -- 8”(200mm),Series A,B,K,L

HNA-FE-P-BSDRU: HNA Bonded Piston Slip Seal DR Type, with USA High Performance Low Friction High Temperature High Pressure Dual Duro Polyurethane: Available Size: 3”(75mm) -- 8”(200mm),Series A,B,K,L

Customized Specific Design & Series of HNA Bonded Piston Slip Seal DR Type, with/without Low Friction High Temperature High Pressure Dual Duro Polyurethane, API/Non-API Standard