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841391000
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Product Description

Valves and Seats for Mud Pump
API standard
ISO 9001/2000 QC
OEM interchangeable
Premium Polyurethane rubber Insert
Valve body and valve seat adopts advanced alloy steel intergral die forging forming,and machining process is strictly,so that guarantee the accuracy of high finish and size.We use advanced heat treatment method for high strength,good toughness, surface hardness HRC≥60.
Valve body assembly seal material can be extremely wear-resistant polyurethane selected by the user,it also can be special configuration of synthetic rubber.Change of seal is fast and convenient.
We can supply various models and sizes of valve body and seat to customers at home and abroad.
The materuial of vlave body and seat is high quality alloy steel, which processed with overall forging and carburizing. Produce under accurate calculation and numerical control lathe, which makes dimensions of valve body and seat perfectly match each other, and increases service life of vlave body and seat. Under nomal working conditions, it can be used more than 400 hours.
We can supply every size of API 4#,5#,6#,7# and 8#, and types of full open style,three-web style and four-web style.
Regarding the valve insert, we can provide compound polyurethane, high temperature resisitant polyurethane and nitrile rubber etc.
Yes. YP Petro accepts OEM/ODM orders based on customer drawings, technical specifications, or reverse-engineered samples. Our engineering team can confirm feasibility, recommend material upgrades, and provide quotations within 3-5 working days.
YP Petro manufactures power end components including extension rods, crossheads, crosshead pins, cross pin baffles, upper and lower guide plates, packing boxes, seal rings, and oil seal lips. We also supply crankshaft assemblies, gear sets, and connecting rods for major mud pump models.
In addition to cylinder liners, YP Petro supplies a complete range of fluid end parts, including pistons, piston rubber, valve bodies, valve seats, valve rubber, liner seals, cylinder head gaskets, valve cover seals, piston rods, clamp assemblies, valve covers, cylinder heads, flange heads, cylinder flanges, cylinder covers, and inhalation capsules. We also supply dampener diaphragms, pressure gauges, fittings, relief valves, and exhaust valves.
YP Petro cylinder liners are available in metric sizes from 100mm to 180mm and imperial sizes from 3" to 7.5" (including 3", 3.5", 4", 4.5", 5", 5.5", 6", 6.25", 6.5", 6.75", 7", 7.25", 7.5"). Custom sizes are available on request.
| Type | Inner Material | Hardness | Service Life | Best For |
| Bi-Metal | High-chromium cast iron | HRC 62 | 800h+ | General high-pressure, abrasive drilling |
| Ceramic | Al₂O₃ or Zirconia | HRC 80+ | 1500h+ | Extreme abrasion, high-sand formations |
| Chrome-Plated | Hard chrome coating | HRC 55 | 300-400h | Moderate conditions, budget operations |
| High-Frequency Quenching | Quenched alloy iron | HRC 50 | 200-300h | Light-duty, low-cost applications |