Execution standard Api681 "liquid ring vacuum pump and compressor" Din28431 "acceptance specifications for liquid ring vacuum pumps". Performance Caliber: dn=125, 500mm Sucking capacity¡êoq=600, 31000m3/h Suction pressure: p=33, 1013 mbar
When it comes to vacuum and compressor technology, each industry and every application has its own specific needs and requirements. NASH offers unparalleled expertise designing and manufacturing efficient and reliable engineered systems to meet your specific process needs. Each engineered system comes packaged and ready for operation, easily integrating with existing processes and automation systems; minimizing installation and operating costs. Regardless of the application, our broad portfolio of products and technologies ensures that Nash has a solution for you. Whether itâ??s a standard pre-engineered package for general industry, an application specific package for the power industry, or a complete engineered to order hybrid system for the chemical industry; NASH has the experience and expertise to deliver an engineered system that is designed to meet the rigors of even the most demanding applications. Nash liquid ring vacuum pumps and compressors offer the widest performance range on the market. Depending on the size and model, our liquidring vacuum pumps are capable of providing a suction capacity between 10 m�³/hr to 39,000 m�³/hr, with vacuum levels down to 28 mbar abs. Certain models can also be equipped with a center shroud, allowing the liquidring vacuumpump to operate at multiple suction pressures. Our liquid ring compressors are capable of achieving a capacity between 50 and 16.000 m�³/h and discharge pressures from 2 bar abs up to 15 bar abs. In certain applications it is also possible to use the same model for both vacuum and compression. Nash liquid ring pumps are capable of handling a wide variety of gases; from gasoline vapors, sulfur dioxide, and chlorine to hydrogen sulfide and vinyl chloride monomers. Seal liquids can be chosen based on process requirements and the gas being handled. In addition to water, a range of seal liquids including acetic acid, acetone, glycol, xylene, and more can be used.
Application SK series water ring vacuum pump and compressor are used for sucking and compressing air or other noncorrosive, nonsoluble gases which don’t contain solid grains to obtain certain vacuum and pressure in sealed vessele. The gas sucked in may be allowed to contain small amount of liquid. The vacuum pumps are used widely in mechanical, petrochemical, pharmaceutical, food and confectionary industries as well as in electron field. AS the gas is compressed isothermally in the process.so that it cannot be likely to result in any danger upon compressing or extracting flammable and explosive gas,thus making it more widely used. Features •It is designed with compact structure , thus make the maintenance more convenient; •It is widely used in compressing or extracting flammable, explosive gases which is allowed to contain vapor and small amount of liquid; •Using water as main working liquid, thus it can optimize the cost of maintenance; •It can be used under more rigid working condition.
LY series chlorine gas liquid ring compressor, using concentrated sulfuric acid as working liquid, is used to compress chlorine. Features ? During the operation the gas is compressed isothermally, so LY series liquid ring compressor can reduce the probability of occurrence of danger and used widely in making chlorine. ? The LY series liquid ring compressor is designed with simple structure, easy maintenance and high efficiency characteristics. Honor In 2006, LY series liquid ring compressor undertook China Torch Program, and obtained a certification given by State Scientific and Technological Commission of China.
It is a isothermal compression for gas in compressor chamber, thus can use 96%~98% strong sulfuric acid as operating liquid. The CL2 Lliquid ring compressors are used widely for liquid chlorine preparation and the dry chlorine compression transportation. in chemical, petrochemical industry.
2sk Series Of Two Stage Water Ring Vacuum Pumps Whose Suction Speed Is Great Even In Higher Vacuum, Are More Fit To Work When The Suction Pressure Is Between -0.085mp A And -0.095mp A.
Application and advantages: SKA(2BE) series liquid ring vacuum pumps and compressors are manufactured by our company integrating with advanced technology of the imported pumps from abroad. It has high efficiency and economic power consumption. These series products is single stage and single action structure, it has many advantages, such as compact structure, convenient maintenance, reliable running, high efficiency and economical powers consumption. The main advantages of SKA(2BE)series products: • All the bearings are the imported brand like NSK to ensure the precise orientation and the high stability during the working of the pump. • The material of the impeller is QT400 nodular iron or stainless steel to ensure the stability when the pump works under the rigorous condition and can extend the lifetime of the pump. • The casing is made of steel or stainless steel plates to extend the lifetime. • The shaft sleeve is made of stainless steel to improve the lifetime of the pump 5 times than the normal material. • The V-belt pulley (when the pump is driven by belt) is used the high precise pulley with taper bushing to keep the reliability of the pump and extend its life. And it is also easy for assembling and disassembling. • The coupling is used to drive the pump directly. The flexible part connecting the two half coupling is made of polyurethane that makes the pump more reliable. • The unique design to set the separator above the pump saves the space and decreases the noise efficiently. • All the parts are cast by the resin sands that make the pump surface very smooth. It is not necessary to cover the surface of the pumps with putty and gives out the heat efficiently.
Features • Space-saving installation Compared to conventional pumps, the 2BVseries of pumps design delivers the benefits of a simple, and motor are integral and self supporting, there is no need for additional base plates, couplings or guards, which add to the cost, complexity and overall size of the installation. • Rugged and reliable The main features of 2BV series vacuum pumps focused on durability and dependability. With a reinforced stainless steel shaft and sealed bearings, the 2BV series can provide up to 20000 hours of maintenance-free operation. • Quiet operation The 2BV is expertly designed and manufactured to be quiet and vibration free. With sound pressure levels of less that 75dBA, it complies with the strictest noise standards, eliminating the need for additional sound attenuating devices. • Advantages a. Compact structure. b. Rugged design of reliable operation and long service life. c. Precision-balanced rotor. d. For worldwide use with 50/60Hz motors. e. Available from stock. f. Low installation costs. g. Easy to service. h. Standard mechanical seal. i. Reinforced stainless-steel shaft Technology specification list:
SKA(2BE1?2BE3) Series water ring vacuum compressors syestem(used widely in the H2, C2H2, CH4 gas and so on isflammable, the explosive gas compress process) The packaged system supply scope (option): The steam separator, the circulation heat exchanger, common base,control measuring apparatus, the control cabinet and so on.
Because the compression of gas in the water (liquid)ring compressors is at the same temperature.So the combustible and explosive gas is also fit to compress,for example,in the trade of chemical engineering and petroleum chemical engineering,the [CH2=CH2]n?CH2=CH?oxide?CH2=CHCL?SO2?H2S?C4H8?etc.
SKA-F,SK-F,2SK-F series anti-corrosion water ring vacuum pumps and compressors (Ti pump)are widely used in all kinds of acid and alkali corrosion erosion process, such as HCL, H2SO4, HNO3,HF etc corrosive environment of chemical and pharmaceutical industry.
ZJP series roots vacuum pump with overflow valve (referred to as the roots pump hereinafter) are positive displacement pumps with two symmetrically shaped impellers, shaped like the figure “8”, rotate in opposite directions inside the pump housing. Roots pump are generally used to increase the pumping speed and/or to reach a higher end-vacuum on the pump system. Roots pumps are able to run at high rotation speed, as high as 1500~3000rpm, as the impellors are rotating non-contact. Due to the high rotation speed it is possible to have a high pumping speed with a relative small sized pump. It is possible to pump high quantities of gas in combination with a relative small backing pump. The energy consumption of such a system is much lower than of a single backing pump with the same pumping speed. The by-pass valve is mounted between the inlet and the exhaust and controls the pressure difference by opening and closing the by-pass valve by gravity. When the pressure difference between the inlet and exhaust is too high the by-pass valve will open and protects the Roots pump from overheating. This way it is possible to run the Roots pump at the same time that the backing pump starts and achieving the maximum pumping speed, also at higher pressures. There are two kinds of vacuum pumps, corrosion and anti-corrosion. The anti-corrosion roots vacuum pump is coated with Teflon or Ni-p by customer’s request. Also clients can choose skeleton oil seal or five point type oil seal by there own will.
JSKA type water-ring vacuum pump whole-set equipment has the peculiarities of reliableness,high efficiency,energy-saving and high automatication degree etc..The major pump adopts the SKA type pump with automatic gas-intake system,water cooling and supplying circularly system and dynamic-transmitting system.The electricity controlling system can be manual,automatical or remote controlled. It is the primary suction equipment of the vaporcoagulators for the domestic and foreign fire power generating electricity system above 600MW,300MW and 100MW.
This kind of pumps has the specialties as follows: 1)If there isn’t vapor to generate, You can turn off the adulterating-gas valve to increase the vacuum degree. 2) The improvement of the adulterating-gas valve can make the pump have adequate adulterating gas amount as pumping vapor, so the cogulable gas can be eliminated timely and the pump oil can be prevented from being lactic. 3) It is installed with the device that can make oil revival in which the oil,water and vapor can be frozen and separated, so the oil can be cleaned in time, and be used repeatedly,therefore, the working time of the pump is prolonged and the working reliability is increased.
This series of vacuum pumps can be used by themselves or as the backing pumps of the Roots pumps,diffusion pumps,molecule pumps and titanium pumps.With the adulterating-gas valve,the pumps can suck a little coagulable gas,humid air or the mixture of gas and vapor,but which can not contain particle-shaped solid matter.
W series of pumps adopt the circle-shaped stationary valve and its ultimate pressure (absolute pressure) is lower than 2600Pa,while the WY series of pumps adopt stripe-shaped moving valves,and it’s ultimate pressure is lower than 1300Pa? This series of pumps are principally used in the trade of chemical industry,medicine-manufacturing,light industry, architecture material and wiring etc..We also serve the no-oil pumps according to the demand of user.
WL series of standing reciprocating vacuum pumps are the renewed products based on the primeval W series of lying ones.Compared with the W series of ones, they have the specialty as follows: 1) The gas valves are installed on the cover and neck of the cylinder(the W series ones are on the body of the cylinders),so it can increase the area of cooling water.The process of compressing gas is approximately isothermal,so it can decrease the loss of power and can save energy by 10%~15%.The area it holds can decrease by 1/2. 2) The piston of the lying reciprocating vacuum pump will go down because of the weight of itself ,so it will be worn away unsymmetrically. The WL series of ones improved this shortcoming,it can decrease the wearing away of the moving units as piston and connecting pole; 3) We can serve the no-oil WL series of standing reciprocating pumps.
JZJW series roots-oil-free reciprocating vacuum system comprising a roots vacuum pump as the main pump, and a WLW vertical oil-free reciprocating vacuum pump as the backing pump, the two pumps is parallel connected. These system remain the advantage of large pumping speed, which belongs to ZJP series vacuum pumps, and at the same time avoid the disadvantage of low pumping speed when it comes to high ultimate vacuum, which belongs to WLW series vacuum pumps. Thus JZJW series system is widely used in the processes of vacuum distillation, vacuum evaporation and vacuum dehydration & crystallization for chemical industry;freeze-drying for food industry; vacuum drying for pharmaceutical etc. JZJW series are fit to be used to collect gases like pentadiene,benzene, methylbenzene etc,which are anti-compressed,anti-concretion in high vacuum system. All this due to that the WLW series vacuum pumps adopted the oil-free and self-lubricating materials, then it can obtain spotless vacuum. JZJW series system are the new production developed by company and National Scientific and Reach Unit. As the ideal production to protect environment,energy-saving,small occupying of area, water-saving, low noise is the system’s main characters. 1. High ultimate vacuum, long range of vacuum 2. Large pumping speed under higher vacuum 3.Lower shaft power, small consumption 4. Without second-time water pollution, the pollution is limited in small area
Each JZJ2B series roots-liquid ring vacuum system comprising a ZJP series roots vacuum pump as main pump, a SKA(2BV/2BE1) series liquid ring vacuum pump as backing pump and other valve&measure apparatus with pips to consist the unit. The units are applied to exhausting normal gases and gases with water, organic solvents or a little dust. Compared with normal mechanical vacuum pumps, the units resist oil, steam and dust. Compared with normal water ring vacuum pumps, they have high vacuums and high exhaust speeds under high vacuum, which make the unit more fit for drying dehydration and vacuum degassing in textile, food, chemical and industry fields. Comparing with common liquid ring vacuum pump,the capacity to remain high pumping speed under high or ultimate vacuum degree becomes its main advantage. Except for normal gas suction, this system can also pump special gas with small amount of vapor or dust. Additionally, this system is free from oil pollution, as well as vapor and dust. Since the 2BV type of liquid ring pump has been adopted as its fore pump, the JZJ2B series system is more efficient than JZJ2S series (which 2SK type of liquid ring pump has been adopted). And it is compact-designed with no air leakage and high protection level. Besides,our 2BV type is more anti corrosive than 2SK type, because all 2BV impeller are albronze material. Another note, the fore pump can be designed as a closed circulation system so to reduce the environment pollution greatly. JZJ2B series system has become an ideal choice for vacuum drying or dehydration process, and vacuum degassing process in the field of light textile, food industry, chemistry, pharmacy, etc.
JZJX type Roots-vane vacuum system consists of the major pump i.e ZJ type Roots vacuum pump and the backing pump i.e. vane vacuum pump.The system has the specificity of high vacuum degree and wide pumping-speed range,and it is more fit to pump dry and clean gas. Now,the series vacuum systems are already widely used in the trade of metallurgy,chemical industry,light industry,petroleum industry,medicine,printing and dyeing,wiring,electronic vacuum,semiconductor,grocery,atomic energy and spinning etc.
