zwei inc hydraulic pump made in china

We offer a wide variety of hydraulic gear pumps, motors and service parts, both OEM (Original Equipment Manufacturer) as well as after-market. We stock original Parker and Casappa units and build custom solutions from parts. Additionally, we have established working relations with many distributors and manufacturers enabling us to quickly fill most every pump and motor need.

We specialize in the wholesale supply of “Made to Order” hydraulic gear pumps and motors. Using our fluid power library and master data base we are able to identify and quote a matching unit and get the customers machine back on the job.

We offer a wide variety of hydraulic gear pumps, motors and service parts, both OEM (Original Equipment Manufacturer) as well as after-market. We stock original Parker and Casappa units and build custom solutions from parts. Additionally, we have established working relations with many distributors and manufacturers enabling us to quickly fill most every pump and motor need.

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We offer high-pressure solutions. Jetting, hydraulic or process technology: solutions with high-pressure pumps and ultra-high-pressure pumps, complex pump systems and high-pressure systems are our competence.

The name of KAMAT has been a synonym for competence and experience in the field of construction and production of high-pressure plunger pumps and systems since 1974, all made in Germany. In the hands of the second generation, we are developing made-to-measure high-pressure solutions, being provided to the most versatile and difficult challenges in many applications worldwide.

The rise in gas output would also help offset some of the hefty losses these firms have incurred from paying higher prices for gas imports than current market value, prices set out in long-term contracts years ago.

The bulk of the growth will come from tight gas and shale gas, resources that require unconventional technology like hydraulic fracking to prop open rock shales to allow gas to escape.

PetroChina and Sinopec, which together pump more than 90% of domestic gas, are set to accelerate drilling at top basins including Ordos in north China, Tarim basin in the northwest and Sichuan in the southwest.

Companies will also step up developing top shale gas blocks in Sichuan province, making the most of low-cost domestically honed technology and local services and operational expertise like shortened drilling speed.

Chen Zhu, managing director at SIA Energy, estimated shale and tight gas will rise by a combined 7 bcm in 2020 - which will account for nearly 80% of the total gas increment this year.

PetroChina, which announced the deepest cut in capital expenditure among China’s top three energy producers, could lower its crude oil output by 4% a year for the next three years, Woodmac’s principal analyst Max Petrov estimated.

US Customs records for Shimadzu Emit Co., Ltd., a supplier based in Japan. See their past imports and exports, including shipments to Tvh Parts Co. in Olathe, Illinois.

SCHAAF is leading the way with ExpaTen bolts in order to revolutionize detachable flange connections of propulsion shafts of the shipbuilding industry. Not only are the bolts 100% non-positive and form fitting, which transfers high torque, but even after high stress they can be easily disassembled and reused. The bending and rotating resistant connection absorbed shock like changes of revolutions, torque as well as turning direction dependently. The system is made of heat treated steel, which is a safety plus during torque transfer. The safety factor in comparison to regular screws is 5. ExpaTen is easy to handle since all tools and hydraulic high-pressure pumps for assembly and disassembly are adjusted to the system. ExpaTen is certified by well-known buyers.

HANNING & KAHL has been producing track brakes since 1928. The very serious discussion on the significance of road safety for passengers has always spurred us on the look for new technical solutions, to accelerate their development and to make sure that they are widely applied in practice. Following on from this commitment, the first electro-hydraulic spring-applied brake systems were produced in 1959.

Today the product range in the Rolling Stock Division encompasses a wide selection of highly-sophisticated units for rail-based vehicles: spring-applied actuators, spring-applied brake calipers, brake cylinders, active calipers, hydro-units for multi-stage and stepless brake control, microprocessor-controlled brake controllers, auxiliary release devices, hydraulic levelling systems, sanding systems … and of course track brakes.

At the time, many Germans were interested in American physicist Robert H. Goddard"s research. Before 1939, German engineers and scientists occasionally contacted Goddard directly with technical questions. Von Braun used Goddard"s plans from various journals and incorporated them into the building of the rockets, named for the German word for mechanism or mechanical system.

In 1943, the Austrian resistance group including Heinrich Maier managed to send exact drawings of the V-2 rocket to the American Office of Strategic Services. Location sketches of V-rocket manufacturing facilities, such as those in Peenemünde, were also sent to the Allied general staff in order to enable Allied bombers to perform airstrikes. This information was particularly important for Operation Crossbow and Operation Hydra, both preliminary missions for Operation Overlord. The group was gradually captured by the Gestapo and most of the members were executed.

At launch the A-4 propelled itself for up to 65 seconds on its own power, and a program motor held the inclination at the specified angle until engine shutdown, after which the rocket continued on a ballistic free-fall trajectory. The rocket reached a height of 80 km (50 mi) or 264,000 ft after shutting off the engine.

The fuel and oxidizer pumps were driven by a steam turbine, and the steam was produced by concentrated hydrogen peroxide (T-Stoff) with sodium permanganate (Z-Stoff) catalyst. Both the alcohol and oxygen tanks were an aluminum-magnesium alloy.

The turbopump, rotating at 4000 rpm, forced the alcohol and oxygen into the combustion chamber at 125 liters (33 US gallons) per second, where they were ignited by a spinning electrical igniter. Thrust increased from 8 tons during this preliminary stage whilst the fuel was gravity-fed, before increasing to 25 tons as the turbopump pressurised the fuel, lifting the 13.5 ton rocket. Combustion gases exited the chamber at 2,820 °C (5,100 °F), and a speed of 2000 m (6500 feet) per second. The oxygen to fuel mixture was 1.0:0.85 at 25 tons of thrust, but as ambient pressure decreased with flight altitude, thrust increased until it reached 29 tons.psi).

Dr. Thiel"s development of the 25 ton rocket motor relied on pump feeding, rather than on the earlier pressure feeding. The motor used centrifugal injection, while using both regenerative cooling and film cooling. Film cooling admitted alcohol into the combustion chamber and exhaust nozzle under slight pressure through four rings of small perforations. The mushroom-shaped injection head was removed from the combustion chamber to a mixing chamber, the combustion chamber was made more spherical while being shortened from 6 to 1 foot in length, and the connection to the nozzle was made cone shaped. The resultant 1.5 ton chamber operated at a combustion pressure of 1.52 MPa (220 psi). Thiel"s 1.5 ton chamber was then scaled up to a 4.5 ton motor by arranging three injection heads above the combustion chamber. By 1939, eighteen injection heads in two concentric circles at the head of the 3 mm (0.12-inch) thick sheet-steel chamber, were used to make the 25 ton motor.: 52–55

The V-2 was guided by four external rudders on the tail fins, and four internal graphite vanes in the jet stream at the exit of the motor. These 8 control surfaces were controlled by Helmut Hölzer"s analog computer, the Mischgerät, via electrical-hydraulic servomotors, based on electrical signals from the gyros. The Siemens Vertikant LEV-3 guidance system consisted of two free gyroscopes (a horizontal for pitch and a vertical with two degrees of freedom for yaw and roll) for lateral stabilization, coupled with a PIGA accelerometer, or the Walter Wolman radio control system, to control engine cutoff at a specified velocity. Other gyroscopic systems used in the A-4 included Kreiselgeräte"s SG-66 and SG-70. The V-2 was launched from a pre-surveyed location, so the distance and azimuth to the target were known. Fin 1 of the missile was aligned to the target azimuth.: rp

On 7 July 1943, Major General Dornberger, von Braun, and Dr. Steinhof briefed Hitler in his Wolf"s Lair. Also in attendance were Speer, Wilhelm Keitel, and Alfred Jodl. The briefing included von Braun narrating a movie showing the successful launch on 3 October 1942, with scale models of the Channel coast firing bunker, and supporting vehicles, including the Meillerwagen. Hitler then gave Peenemünde top priority in the German armaments program stating, "Why was it I could not believe in the success of your work? if we had had these rockets in 1939 we should never have had this war..." Hitler also wanted a second launch bunker built.: 93–105

A production line was nearly ready at Peenemünde when the Operation Hydra attack occurred. The main targets of the attack included the test stands, the development works, the Pre-Production Works, the settlement where the scientists and technicians lived, the Trassenheide camp, and the harbor sector. According to Dornberger, "Serious damage to the works, contrary to first impressions, was surprisingly small." Work resumed after a delay of four to six weeks, and because of camouflage to mimic complete destruction, there were no more raids during the next nine months. The raid resulted in 735 lives lost, with heavy losses at Trassenheide, while 178 were killed in the settlement, including Dr. Thiel, his family, and Chief Engineer Walther.: 139–152 The Germans eventually resulted production to the underground Mittelwerk in the Kohnstein where 5,200 V-2 rockets were built with the use of forced labour.

One of the victims of a V-2 that struck Teniers Square, Antwerp, Belgium on 27 November 1944. A British military convoy was passing through the square at the time; 126 people (including 26 Allied soldiers) were killed.

After Hitler"s 29 August 1944 declaration to begin V-2 attacks as soon as possible, the offensive began on 7 September 1944 when two were launched at Paris (which the Allies had liberated less than two weeks earlier), but both crashed soon after launch. On 8 September a single rocket was launched at Paris, which caused modest damage near Porte d"Italie.: 218, 220, 467 Two more launches by the 485th followed, including one from The Hague against London on the same day at 6:43 pm.: 285 – the first landed at Staveley Road, Chiswick, killing 63-year-old Mrs. Ada Harrison, three-year-old Rosemary Clarke, and Sapper Bernard Browning on leave from the Royal Engineers,: 11 and one that hit Epping with no casualties.

At a Crossbow meeting on 15 January 1945 Pile"s updated plan was presented with some strong advocacy from Roderic Hill and Charles Drummond Ellis. However, the Committee suggested that a test not be performed as no technique for tracking the missiles with sufficient accuracy had yet been developed. By March this had changed significantly, with 81% of incoming missiles correctly allotted to the grid square each fell into, or the one beside it. At a 26 March meeting Pile was directed to a subcommittee with RV Jones and Ellis to further develop the statistics. Three days later the team returned a report stating that if the guns fired 2,000 rounds at a missile there was a 1 in 60 chance of shooting it down. Plans for an operational test began, but as Pile later put it, "Monty beat us to it", as the attacks ended with the Allied capture of their launching areas.

The only effective defences against the V-2 campaign were to destroy the launch infrastructure—- expensive in terms of bomber resources and casualties-—or to cause the Germans to aim at the wrong place by disinformation. The British were able to convince the Germans to direct V-1s and V-2s aimed at London to less populated areas east of the city. This was done by sending deceptive reports on the sites hit and damage caused via the German espionage network in Britain, which was secretly controlled by the British (the Double-Cross System).

The German V-weapons (V-1 and V-2) cost the equivalent of about US$500 million.ℛℳ (£2,370,000 in 2011) eachHans Kammler, who as an engineer had constructed several concentration camps including Auschwitz, had a reputation for brutality and had originated the idea of using concentration camp prisoners as slave laborers for the rocket program. More people died manufacturing the V-2 than were killed by its deployment.

One at the Australian War Memorial, Canberra, including a complete Meillerwagen is the most complete of the three examples known to exist. Another A4 was on display at the RAAF Museum at Point Cook outside Melbourne. Both rockets are now in Canberra.

Several large components, like hydrogen peroxide tank and reaction chamber, the propellant turbopump and the HWK rocket engine chamber (partly cut-out) are displayed at the Polish Aviation Museum in Kraków

V-2 display including engine, parts, rocket body and many documents and photographs relating to the development and use at La Coupole museum, Wizernes, Pas de Calais.

One engine complete with steering pallets, feed lines and tank bottoms, plus one cut-out thrust chamber and one cut-out turbopump at the Snecma (Space Engines Div.) museum in Vernon.

The Peenemünde replica incorporates many original components along with re-manufactured ones and was put together by a group that included Reinhold Krüger, who worked as an apprentice at Peenemünde during the war. Klaus Felgentreu. "Reinhold Krüger (18.02.1930 - 29.05.2005)" (in German). Förderverein Peenemünde „Peenemünde - Geburtsort der Raumfahrt" e.V. Retrieved 17 August 2021.

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