RockySea Petro Polished RodRockySea Petro can supply polished rods which comply with intl standard. They are manufactured through many processes including the testing, straightening and forging. Polished rods are made of high quality carbon steel and alloy steeldue to customer request. Ourpolished rods are exported to the United States, Canada, Europe, Africa and Middle East, and we establish cooperative relationships with international customers all over the world.Description The polished rod is a sp
VIEW DETAILSRockySea Petro Deep Well Oil Well PumpWhen the pump barrel is stretched and deformed, the pump plunger will not be running smoothly, and even the barrel may trip or break;The valve may be damaged and invalidThe valve cage may break and fail;RockySea Petro developed a lot of special oil well pumps to solve the above problems, including a suspension pump, bridge-type pump, solid plunger pump, etc.The oil well pump efficiency may be reduced to less than 30%Your Premier Deep Well Oil Well Pump Manufacturers An
VIEW DETAILSRockySea Petro Downhole Pump FittingsWe establishes cooperative relationships with international customers such as Shell, GE, Schlumberger, and JOHN CRANE.Exported to the United States, Europe, Asia and Asia,The standard parts of the sucker rod pump produced by our company are well-selected, precision-made, stable in quality and excellent in performance, .Your Premier Downhole Pump Fittings Manufacturers And Suppliers.Valve Rods Valve rod materials include steel, alloy steel, stainless steel and bra
VIEW DETAILSRockySea Petro DrawworksFunction(1) During the drilling process, hang the drilling tools, feed in the drill string and drill bit, and control the drilling pressure.(2) Use the cathead mechanism of the drawworks to tightly unload drilling tools and lift heavy objects.(3) Provide different lifting speeds and weights for drilling operations.(4) As the variable speed mechanism and intermediate transmission mechanism of the turntable.(5) Use the sand drum of the drawworks to perform core extraction,
VIEW DETAILSRockySea Petro Double Separation Weighting Multiphase Flow Meter DeviceRockySea Petro passed ISO9001 certification in 2005 and three-system certification in 2017. The company has advanced production equipment, inspection, measurement and test equipment, which can meet the requirements of product design, development, production and service and has the only multiphase flow laboratory for Sinopec.The main products are single-screw and twin-screw oil-gas mixed pump, MFM2000 series multiphase flowmeter, LPT mul
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Grade | Tensile strength MPa | Yield strength MPa | Percentage elongation % | Contraction percentage of area % | |
C | 620 – 795 | ≥ 415 | ≥ 13 | ≥ 50 | |
K | 620 – 795 | ≥ 415 | ≥ 13 | ≥ 60 | |
D | 795 – 965 | ≥ 590 | ≥ 10 | ≥ 50 | |
KD | 795 – 965 | ≥ 590 | ≥ 10 | ≥ 50 |
OD range | Yield strength | Tensile strength | Elongation | Hardness | Charpy impact energy | |
mm | in | MPa | MPa | % | HB | J |
79.4~171.4 | 3 1/8~6 3/4 | ≥758 | ≥827 | ≥18 | NA | NA |
177.8~279.4 | 7~11 | ≥689 | ≥758 | ≥20 | NA | NA |
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