In pressure gauge weksler ราคา in the oil and fuel business, the chemical trade, and even the food industry, pumps that work reliably and provide excessive performance are wanted. At the same time, they must have convincingly low investment costs. With the Ecosmart diaphragm metering pump, the German Lewa GmbH has provided a cost-attractive and protected model that may deal with circulate charges of as much as 300 l/h for many years. For use in purposes with greater circulate charges, the pump skilled from Leonberg, Germany, is now expanding its product vary with two new sizes. In addition to the LCA model, the Ecosmart may also be out there within the extra highly effective LCC and LCD variations sooner or later. While the LCC model can meter in extra of 264 gallons per hour, Lewa designed the LCD for a move price of up to 528 gallons per hour. The maximum permissible operating pressure for each models is 50 bar and 600 kilos respectively. The stringent use of comparable elements throughout the Ecosmart product household keeps manufacturing costs and subsequently the ultimate worth low. At the identical time, a excessive degree of security could be guaranteed by specializing in all essential design options such because the strain aid valve or the confirmed sandwich diaphragm with steady monitoring. The LCC variant was made obtainable on the finish of 2021 and the LCD mannequin will be available by mid-2022.
In addition to the confirmed diaphragm metering pumps of the Ecoflow series, Lewa has supplied the less expensive Ecosmart pump for several years. This is especially because of the fact that although a dependable pump unit is required in quite a few processes, on the same time comparatively low discharge pressures in the lower two-digit range require less complicated pump expertise. With the Ecosmart LCA within the single pump model, nevertheless, only a move fee of beneath 80 gallons per hour was beforehand attainable. In order to have the ability to offer the Ecosmart for functions with greater move rates, the engineers at Lewa started growing two extra, larger pump variants in 2019. The purpose was to scale up the Ecosmart to bigger functions with the confirmed security level and top quality Lewa parts with out considerably rising the low funding value typical for this pump sequence. This was to be achieved by a constant modular principle throughout the pump series, in addition to a strict concentrate on the important features and options. The specifications also demanded the similar old Lewa suitability for unrestricted continuous operation over many years. Options for integrating the pumps into automated techniques through analog management indicators or bus techniques are also a matter in fact.
Lewa Ecosmart LCC3 on the take a look at stand.
ADJUSTMENT OF PLUNGER DIAMETER AND STROKE ENABLE MORE FLOW
First of all, the requirements for the conveying capability had to be implemented constructively. Larger plunger diameters had been selected for the smaller LCC variant, in order that greater than 264 gallons per hour may be conveyed as an alternative of lower than 80 gallons. In the case of the extra highly effective LCD version, the engineers additionally determined to extend the stroke length so that a maximum move fee of 528 gallons per hour might be achieved. Both pump types can work in opposition to a maximum operating stress of 50 bar. As with all hydraulically actuated diaphragm metering pumps, most pressures are achieved with smaller plunger diameters.
Just as essential because the efficiency of the pump was the operational reliability typical of Lewa familiar from different pump series. For this purpose, individual, essential options such because the built-in strain safety valve or the sandwich diaphragm have been taken over from the Ecoflow fashions. The individually adjustable stress security valve ensures that sudden overpressure within the pump doesn’t damage the diaphragm or pump drive. The diaphragm safety system DPS, whose important part is a return spring for the diaphragm, additionally ensures that the PTFE sandwich diaphragm all the time works in the right place. It cannot be overstretched or broken during start-up. Thus, the pump is protected towards operating errors or upset working conditions. Finally, the usual diaphragm monitoring system checks the condition of the diaphragm and warns plant operators immediately if there is any damage. This reliably prevents cross-contamination between the pump and the piping system and ensures operational security always, particularly in sensitive areas with poisonous fluids. However, diaphragm monitoring is never used as a end result of Lewa diaphragms of this collection normally obtain service lives of a quantity of years – even underneath full load and steady operation.
A key level was to keep manufacturing prices within an identical vary to the small LCA variant, thereby creating attractive market costs for applications with much less demanding necessities and lower operating pressure. To accomplish that, the design of the 2 new pump sizes wanted to combine parts that are as similar or no much less than similar as possible so as to avoid excessive manufacturing costs. In this fashion, the Lewa engineers had been in a place to successfully implement the frequent parts technique that had already been practiced many instances.
Pump users also profit from this clever modular principle, as many put on elements can be utilized throughout pump types. This considerably simplifies the spare parts inventory. At the same time, the modular precept also allows individual changes to the respective utility. For example, stroke frequencies or plunger diameters may be chosen individually. The foundation for that is the M900 pump head, which is already used in the LCA variant and in the Ecoflow program.
Lewa Ecosmart LCC in heated cabinet.
GOOD INTEGRABILITY FOR PLANT CONSTRUCTION COMPANIES
The pump’s flexibility also presents benefits for plant building: It allows the Ecosmart pump to be oriented both vertically or horizontally, making it simpler to combine the unit into systems with restricted or confined areas. In addition, the pump head of the new LCC and LCD models is aligned at right angles to the plunger axis, leading to a particularly compact format. In many pumps, the pump head is on the identical axis as the plunger, which often leads to cumbersome pump dimensions. The 90-degree orientation avoids this with the model new fashions. This advantage is achieved by the extremely compact and utterly newly developed, cost-effective diaphragm drive.
In order to make sure the lengthy service life typical of Lewa pumps, solely high-quality, strong supplies are used within the LCC and LCD variations. Toxic and abrasive substances can stress the pump significantly and so a wide selection of materials can be used on the moist finish, which are also successfully used in the high-pressure variants of the Ecoflow series. Many high-quality components from the Ecoflow sequence are also used for the drive units, employing the frequent parts strategy. The result’s robustness and sturdiness that’s uncommon in this pump class. In addition, all Ecosmart pumps have been designed with a single oil tub, which is used for each the lubrication of the drive unit and the hydraulics of the pump head. This eliminates the more advanced lubrication through two separate oil systems and ends in a simpler design, which not only facilitates operation but in addition reduces upkeep work.
Last but not least, the new LCC and LCD versions—like the LCA—comply with the united states trade standard for metering pumps API 675, making certain practically limitless utilization for quite a few demanding processes in a variety of industries.
USE IN THE CHEMICAL INDUSTRY
For example, when metering solvents in the chemical trade, pumps are needed that on the one hand meet the best specification necessities and however are still cost-effective. Here, the Ecosmart pump with its greater efficiency is able to meet precisely these necessities, because it has been exactly engineered for applications within the lower pressure range as much as 50 bar (600 pounds). The bigger variations of the Ecosmart pump are also suitable for industrial water treatment, similar to in seawater desalination or industrial cooling circuits. What counts right here above all is compactness and cost-effective design, which the complete Lewa Ecosmart sequence fulfills thanks to its revolutionary design precept.
Before the new pump variants are available to customers, a number of intensive checks will be carried out. They will be certain that the units additionally meet the excessive inside company requirements for reliability and performance in operational follow. They embody, on the one hand, steady load checks of as much as a number of tens of thousands of hours and, on the other hand, overload checks. In the latter, the pump is run repeatedly at as a lot as 20 % above most strain to additional validate its robustness. Special exams are carried out in heated cupboards to proof that the pumps additionally perform perfectly under excessive ambient conditions. After profitable completion of all checks and last adjustments, the Ecosmart version LCC is now available on the market, the LCD mannequin will follow in mid-2022.