dc power tong factory

DC Power Tong continues to set the standard in the casing and tubing service industry by offering superior service & innovative casing technology. To exceed our customersʼ expectations, DC Power Tong also provides hydro test trucks, pressure test units, and equipment and pipe wrangler rentals to ensure your project is completed safely and efficiently. At DC Power Tong, we treat your project as if it is our very own, and thatʼs what weʼre all about.

Hydraulic Casing Power Tongs TQ series of casing tongs are widely used for making-up or breaking-out of casings or pipes. The casing tong features high-efficiency, safety, reliability, labor-saving, and can ensure connection quality. Tong head is designed as open and is fitted with two jaws which can ensure reliable...

Hydraulic Tubing Power Tong API 7K Hydraulic Tubing Power Tong with closed head and open head is used for make up and break out quickly in well service operation. The hydraulic tubing power tong is equipped with hydraulic backup tong and use inner curved cam to clamp. It is as per API 7K specification with oil pipe...

Hydraulic Drill Pipe Tong ZQ drill pipe power tong is ideal tool for oil & gas drilling, widely applied for makeup and breakout in offshore and onshore drilling operations and workover operations. Open head design of the ZQ series allows the tongs to disengage from drill string with high mobility. The tong is a...

Hydraulic Drill Pipe Power Tong After a quench and temper heat treat, the tool joints are cut into box (female) and pin (male) threads. Tool joints are commonly 120 ksi SMYS, rather than the 135 ksi of the tube. They generally are stiffer than the tube, increasing the likelihood of fatigue failure at the junction. The...

Hydraulic Casing Power Tongs TQ series of casing tongs are widely used for making-up or breaking-out of casings or pipes. The casing tong features high-efficiency, safety, reliability, labor-saving, and can ensure connection quality. Tong head is designed as open and is fitted with two jaws which can ensure reliable...

Manual Tong Manual tong is an essential tool in oil drilling operation to fasten or remove the screws of drill pipe and casing joint or coupling. The handling size of manual tong I can be adjusted by changing latch lug jaws and latch steps. Details • Manual tong is as per API7K standard • Manual tong is an essential...

In the past few years, our business absorbed and digested advanced technologies both equally at home and abroad. In the meantime, our company staffs a group of experts devoted to your advancement of Power Tong , Tubing Power Tong , Oil Pipe Power Tongs , we sincerely welcome consumers from at your home and abroad to cooperate with us provide you greatest services!

"Our firm promises all users on the first-class products and solutions along with the most satisfying post-sale assistance. We warmly welcome our regular and new buyers to join us for Power Tong , Tubing Power Tong , Oil Pipe Power Tongs , Our company offers the full range from pre-sales to after-sales service from product development to audit the use of maintenance based on strong technical strength superior product performance reasonable prices and perfect service we"ll continue to develop to deliver the high-quality goods and services and promote lasting cooperation with our customers common development and create a better future.

A two-speed Hydra-Shift® motor coupled with a two-speed gear train provides (4) torque levels and (4) RPM speeds. Easily shift the hydraulic motor in low speed to high speed without stopping the tong or tublar rotation, saving rig time.

A patented door locking system (US Patent 6,279,426) for Eckel tongs that allows for latchless locking of the tong door. The tong door swings easily open and closed and locks when torque

is applied to the tong. When safety is important this locking mechanism combined with our safety door interlock provides unparalleled safety while speeding up the turn around time between connections. The Radial Door Lock is patented protected in the following countries: Canada, Germany, Norway, United Kingdom, and the United States.

The field proven Tri-Grip® Backup features a three head design that encompasses the tubular that applies an evenly distributed gripping force. The Tri-Grip®Backup provides exceptional gripping capabilities with either Eckel True Grit® dies or Pyramid Fine Tooth dies. The hydraulic backup is suspended at an adjustable level below the power tong by means of three hanger legs and allowing the backup to remain stationary while the power tong moves vertically to compensate for thread travel of the connection.

Afghanistan - AFGAlbania - ALBAlgeria - DZAAmerican Samoa - ASMAndorra - ANDAngola - AGOAnguilla - AIAAntigua and Barbuda - ATGArgentina - ARGArmenia - ARMAruba - ABWAustralia - AUSAustria - AUTAzerbaijan Republic - AZEBahamas - BHSBahrain - BHRBangladesh - BGDBarbados - BRBBelarus - BLRBelgium - BELBelize - BLZBenin - BENBermuda - BMUBhutan - BTNBolivia - BOLBosnia and Herzegovina - BIHBotswana - BWABrazil - BRABritish Virgin Islands - VGBBrunei Darussalam - BRNBulgaria - BGRBurkina Faso - BFABurma - MMRBurundi - BDICambodia - KHMCameroon - CMRCanada - CANCape Verde Islands - CPVCayman Islands - CYMCentral African Republic - CAFChad - TCDChile - CHLChina - CHNColombia - COLComoros - COMCongo, Democratic Republic of the - CODCongo, Republic of the - COGCook Islands - COKCosta Rica - CRICote d Ivoire (Ivory Coast) - CIVCroatia, Republic of - HRVCyprus - CYPCzech Republic - CZEDenmark - DNKDjibouti - DJIDominica - DMADominican Republic - DOMEcuador - ECUEgypt - EGYEl Salvador - SLVEquatorial Guinea - GNQEritrea - ERIEstonia - ESTEthiopia - ETHFalkland Islands (Islas Malvinas) - FLKFiji - FJIFinland - FINFrance - FRAFrench Guiana - GUFFrench Polynesia - PYFGabon Republic - GABGambia - GMBGeorgia - GEOGermany - DEUGhana - GHAGibraltar - GIBGreece - GRCGreenland - GRLGrenada - GRDGuadeloupe - GLPGuam - GUMGuatemala - GTMGuernsey - GGGuinea - GINGuinea-Bissau - GNBGuyana - GUYHaiti - HTIHonduras - HNDHong Kong - HKGHungary - HUNIceland - ISLIndia - INDIndonesia - IDNIreland - IRLIsrael - ISRItaly - ITAJamaica - JAMJapan - JPNJersey - JEJordan - JORKazakhstan - KAZKenya - KENKiribati - KIRKorea, South - KORKuwait - KWTKyrgyzstan - KGZLaos - LAOLatvia - LVALebanon - LBNLiechtenstein - LIELithuania - LTULuxembourg - LUXMacau - MACMacedonia - MKDMadagascar - MDGMalawi - MWIMalaysia - MYSMaldives - MDVMali - MLIMalta - MLTMarshall Islands - MHLMartinique - MTQMauritania - MRTMauritius - MUSMayotte - MYTMexico - MEXMicronesia - FSMMoldova - MDAMonaco - MCOMongolia - MNGMontenegro - MNEMontserrat - MSRMorocco - MARMozambique - MOZNamibia - NAMNauru - NRUNepal - NPLNetherlands - NLDNetherlands Antilles - ANTNew Caledonia - NCLNew Zealand - NZLNicaragua - NICNiger - NERNigeria - NGANiue - NIUNorway - NOROman - OMNPakistan - PAKPalau - PLWPanama - PANPapua New Guinea - PNGParaguay - PRYPeru - PERPhilippines - PHLPoland - POLPortugal - PRTPuerto Rico - PRIQatar - QATReunion - REURomania - ROURussian Federation - RUSRwanda - RWASaint Helena - SHNSaint Kitts-Nevis - KNASaint Lucia - LCASaint Pierre and Miquelon - SPMSaint Vincent and the Grenadines - VCTSan Marino - SMRSaudi Arabia - SAUSenegal - SENSerbia - SRBSeychelles - SYCSierra Leone - SLESingapore - SGPSlovakia - SVKSlovenia - SVNSolomon Islands - SLBSomalia - SOMSouth Africa - ZAFSpain - ESPSri Lanka - LKASuriname - SURSwaziland - SWZSweden - SWESwitzerland - CHETaiwan - TWNTajikistan - TJKTanzania - TZAThailand - THATogo - TGOTonga - TONTrinidad and Tobago - TTOTunisia - TUNTurkey - TURTurkmenistan - TKMTurks and Caicos Islands - TCATuvalu - TUVUganda - UGAUkraine - UKRUnited Arab Emirates - AREUnited Kingdom - GBRUnited States - USAUruguay - URUUzbekistan - UZBVanuatu - VUTVatican City State - VATVenezuela - VENVietnam - VNMVirgin Islands (U.S) - VIRWallis and Futuna - WLFWestern Sahara - ESHWestern Samoa - WSMYemen - YEMZambia - ZMBZimbabwe - ZWE

Lift items from the ground to van floor height, then rotate into cargo area. Manual, DC battery powered, and AC electrically powered winches are available. AC powered winch has a lift speed of 10 ft. per minute and DC powered at 7 ft. per minute at full capacity load. AC powered winch includes toggle switch. DC powered winch includes a pendant control. Battery powered winch includes 36" long leads. Battery not included. Van floor to raised hook height is 36-1/8". Double-pivot arm for use in tight spaces. Overall height is 46-1/16". Swing reach is 0" to 39-3/4". Steel construction. Painted finish. Unit is designed for vertical lifting only. Do not use unit for lifting personnel or overhead lifting.

Electricity demand of each province is driven by increased electrification in buildings, industrial, and transportation sectors. Each province also has its own electricity supply system. The electricity sector includes a detailed representation of different power generation technologies, including those fueled by coal and other fossil fuels (with and without CCS), bioenergy (with and without CCS), nuclear, and renewables. Cost data of different technologies is based on NREL Annual Technology Baseline data

The top-down and bottom-up coal pathways are almost identical for the Central China Grid and China Southern Power Grid (Supplementary Fig. 7b). This indicates that these two grids can follow our plant-by-plant retirement schedule and meet future demand without trading electricity with other regions. In contrast, the bottom-up coal retirement is faster than the top-down phaseout in the North China Grid and Northeast China Grid but slower in the Northwest China Grid and East China Grid (Supplementary Fig. 7b). These differences could be addressed by increased investment in clean energy technologies or through long-distance transmission. For example, the Northwest China Grid and East China Grid could export electricity to other regions, while the North China Grid and Northeast China Grid could import electricity.

Using GCAM-China, we develop two deep decarbonization scenarios by limiting end-of-century radiative forcing at different levels. Specifically, a well-below 2 °C and a 1.5 °C scenario, has the end-of-century radiative forcing at 2.6 Wm−2 and 2.0 Wm−2, respectively. Starting in the model period of 2025, we apply an increasing global carbon price on fossil fuel energy-related emissions across regions and sectors that is consistent with the well-below 2 °C or 1.5 °C temperature goal. This carbon price is applied to all regions and all sectors of the economy and emission reductions occur where it’s economical. Therefore, our results show how much mitigation would happen in the power sector with all other sectors mitigating at the same marginal abatement costs. The implication of different sectoral policies is an important research topic but beyond the scope of this research. However, we note that the literature generally points to the importance of decarbonizing the electricity sector early and quickly, especially given that mitigation pathways in other sectors frequently involve electrification. Reflecting institutional difficulties associated with pricing carbon in land, only 10% of the carbon price is passed on to the land sector.

We exogenously specify 2010, 2015, and 2020 coal power generation for each vintage group by province to match historical data and our plant-by-plant dataset. We categorize every coal power plant in a given province into seven categories (vintages) depending on when they started operation: 1975 (or before), 1976–1990, 1991–1995, 1996–2000, 2001–2005, 2005–2010, and beyond 2010.

Historical data up to 2010 is calibrated natively in GCAM. We exogenously specify the 2015 generation of older vintages to the historical value. For estimating the 2020 generation for the older vintages, we use the following procedure. First, we assume that the 2018 aggregate coal-fired power plant generation value will hold true for 2020. Second, we subtract the estimated 2020 generation for the “Beyond 2010” vintage to obtain the total aggregated generation for all the older vintages. Third, we assume that the ratio of contribution of each vintage to the aggregate generation will be the same as 2015. Finally, we adjust the s-curve generation between 2015 and 2020 reflecting these assumptions.

For the new “Beyond 2010” vintage, we exogenously specify the 2015 vintage to the historical values, and 2020 vintages to those currently under construction. We assume the 2015 generation values to hold true for 2020 for power plants that were operating between 2011 and 2015. We calculate projected generation from power plants that started operation (or were expected to do so in the case of dates beyond 2018) between 2016 and 2020. We add the two values to obtain an expected “Beyond 2010” vintage 2020 generation value for each province.

For 2020, total coal power generation is matched with 2018 data. Since the model runs at a five-year interval, we use 2018 generation data to approximate the trend between 2015 and 2020. Starting in the next model period of 2025, the model finds the most cost-effective pathways to achieve the 1.5 °C or 2 °C climate targets through a global carbon price. When converting to the coal plants retirement pathways (GW), our baseline value is based on the plant-level data up to May 2019, and we used a linear interpolation between the 2019 data and the first model period in 2025, and between all model periods thereafter, to calculate the annual retirement pathways.

Our scenario shows that both global and China’s net CO2 emissions peak around 2020, and then China reaches net-zero emissions by 2055 under 1.5 °C and by 2070 under 2 °C, while the world reaches net-zero carbon five years earlier under each target (Fig. 5a, b). This is associated with global and China conventional coal power generation also peaking in 2020, and being phased out around 2040 and 2050, under 1.5 °C and 2 °C, respectively (Fig. 5c, d). China’s total power generation will increase to about 12,500 TWh under 2 °C and to about 14,500 TWh under 1.5 °C by 2050, mainly supplied by solar and other renewable energies (Fig. 5c).

a Global net CO2 emission pathways, b China net CO2 emission pathways, c global conventional coal power generation pathways, d China conventional coal power generation pathways, and e China electricity generation by technology. The lighter lines are scenarios from the IAMC 1.5 °C Scenario Explorer. The light blue lines indicate scenarios categorized as “Below 1.5 °C”, “1.5 °C low overshoot”, and “1.5 °C high overshoot”; the light green lines indicate scenarios categorized as “Lower 2 °C” and “Higher 2 °C” in the database.

When comparing the global pathways from our scenarios against the ensembles from the IPCC 1.5 °C database5a, c); however, the 1.5 °C database does not provide regional specific results for China, making a direct comparison more challenging. Nonetheless, looking at the global pathways, although there seems to be large uncertainty on near-term behaviors, models tend to highly agree on the long-term phaseout timeline of conventional coal power generation at the global level – that is, by around 2040 for 1.5 °C and by around 2050 for 2 °C. It suggests that across these scenarios, China’s coal phaseout also needs to happen no later than these timelines, consistent with our results.

Moreover, different technology futures or electricity demand has little impact on coal generation pathways under deep decarbonization scenarios. For example, the comparison with the IPAC results illustrates that although different models have very different projections and interpretations about how China will achieve power system deep decarbonization (i.e., through different combinations of alternative technologies), the retirement pathways of conventional coal power generation to achieve the climate goals are consistent and robust (Supplementary Fig. 6a).

Moreover, low electricity demand only marginally delayed the coal power decline. In addition to the core scenario (low demand) used for plant-by-plant retirement, we also looked at a high energy demand scenario for each climate target. With higher energy demand to achieve the same emission pathways, power generation from conventional coal plants will need to decline faster (Supplementary Fig. 6b, c) to offset the increased emissions in other sectors, mainly buildings and industry (Supplementary Fig. 6d). This indicates that improved efficiency (as in the low demand scenario) can slightly slow down coal phaseout in the near term.

A number of variables, either collected or estimated at the unit level, are used in the calculation of metrics, including location, capacity, vintage year, combustion technology, application, heat rate, coal type, and project developer. To get a more up-to-date version, it is further modified with more recently built power plants during the months of February to May of 2019. The reference data of our update is according to the latest information published on the Beijixing power website1) that describes the data in more detail is provided in Supplementary Methods.

Power sector’s contribution to local air pollution tends to vary across regions, which may affect the health benefit gained by shutting down coal plants at different locations, and thus affect the retirement priority ranking. Therefore, we use two alternative metrics for local air pollution in the retirement algorithm as sensitivity analysis: percentage of SO2 or NOx emissions from the power sector at the plant’s location (see Supplementary Table 1). We find that provincial coal phaseout pathways are robust across different metrics used (Supplementary Fig. 11a, b). This suggests that although individual plants’ ranking may change with different air pollution metrics, the retirement time schedule consistent with the 1.5 °C or 2 °C climate target is not sensitive to this assumption.

Among all the provinces, Inner Mongolia tends to show a relatively larger change in the near-term pathways (Supplementary Fig. 11a, b). Under both the “power SO2” and the “power NOx” methods, coal plants located in Inner Mongolia retire slightly faster than the original “total PM2.5 concentration” approach, indicating that the power sector contributes to a larger share of the local air pollutant emissions in the region.

Level of retirement agreement between two different weighting methods is quantified using the number of coal power units that are agreed to retire by the given year based on both the methods. The overall retirement agreement level is high between the original weighting method and CHP prioritized method, as well as the equal-weighted method under 1.5 °C and 2 °C (Supplementary Fig. 12). The agreement also increases with time as well as the stringency of targets. However, near-term decision making is critical. In the next decade, about a third or half of the retired coal plants will change when different priorities are adopted.

Membrane electrolysis sodium hypochlorite generator is a suitable machine for drinking water disinfection, wastewater treatment, sanitation and epidemic prevention, and industrial production, which is developed by Yantai Jietong Water Treatment Technology Co., Ltd., China Water Resources and Hydropower Research Institute, Qingdao University, Yantai University and other research institutes and universities. Membrane sodium hypochlorite generator designed and manufactured by Yantai Jietong Water Treatment Technology Co., Ltd. can produce 5-12% high concentration sodium hypochlorite solution with a closed loop of producing fully automated operation.