原文：
底阀是一种节约能源的阀,一般安装在水泵水下吸管的底端.限制水泵管内液体返回水源,起着只进不出的功能.阀盖上有很多个进水品和加强筋,起到了不易堵塞,主要应用在抽水的管路上.水道和支承的作用.口径有单瓣,双瓣,多瓣型.有法兰连接和螺纹连接。其他名称：内螺纹升降式底阀－－-井底阀、吸水阀、滤水阀、莲蓬头；升降式底阀－－法兰井底阀；旋启式底阀－－法兰旋启式井底阀。 底阀焊接在容器的{zd2}部，从而可以达到{zj0}的排空，清洗，xx的效果。此外还可根据操作过程中各项工艺要求将工作介质很好的混合。罐底阀尽可能靠近罐底壁，从而达到无死角的效果。底阀产品特征：1.结构不论是从流量，还是从工艺要求来看都很理想，此外在排空的时候不会产生湍流现象．2.可提供所有现行国际标准的接口，如焊接式，卡箍式或螺纹式等．3.阀体材料均为US304.SUS316L当然也可根据客户的要求采用其他的合金钢．4.阀体表面可根据客户要求采用机械抛光或电抛光，精度可达到0.25um．5.底阀可配手动，也可配备气动 每台水泵要安装一只底阀，底阀通常安装于水面以下，而水上式底阀则安装于水面以上，它是老式底阀的更新换代产品， 是理想的引水设备而且亦可取代真空泵及抽真空装置。水上式底阀由铁道部专业设计院设计，八五年通过部级鉴定，八六年获铁道部科技进步奖，并已注入《给水排水设计手册》第九册，90年《能源通讯》杂志第二期对该底阀作了题为《高效节能的水上底阀》的报道。94年在全国双五百活动中又荣获国家经委、计委、科委组织评定的优秀节能产品。该底阀设计合理，制造工艺先进，安装、使用、检修方便。并具有摩擦阻力小，使用寿命长，节能等优点，广泛适用于石化、化工、纺织、印染、冶金、矿山、排灌等行业的水泵配套设施。

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译文：
Bottom valve is a valve of energy conservation, water suction pump is usually installed in the bottom. Restrict fluid return pump pipe water into play not only the function. Valve cover have a number of water supplies and strengthen the tendons, played a hard block, mainly used in water pumping in the pipeline. watercourses and supporting role. caliber are ill with double valve, multi-jaw type. a flange connection and thread connection. Other names: internal thread --- bottom end of the valve lift valve, suction valve, water treatment valves, showers; lift bottom valve - flanged bottom valve; Swing Bottom Valve - Flange Swing Well bottom valve. Bottom valve welded to the container bottom, which can achieve the best of emptying, cleaning, disinfection effect. In addition, the process can be under the operation of the process requires a good mix of media work. Tank bottom valve as close to the bottom of the tank wall, so as to achieve the effect of no dead ends. Bottom valve Feature: 1. Structure, whether from traffic, or look very good from a technical requirement, in addition to the emptying time does not produce turbulence. 2. Can provide the interface to all existing international standards, such as welding, clamp type or threaded type, etc.. 3. US304.SUS316L body materials are of course used in accordance with the requirements of customers of other alloy steel. 4. Body surface can be customized by mechanical polishing or electropolishing, precision can reach 0.25um. 5. Bottom valve can be equipped with manual can also be equipped with pneumatic pumps to be installed on each end of a valve, foot valve, usually installed in the water, and water-type bottom valves are installed on the surface of the water above, it is the end of valve replacement of old products , is the ideal equipment but will also replace the water pump and vacuum devices. Water-type bottom valve professionals from the Ministry of Railway Design Institute, in 2085 by ministerial-level appraisal in 2086 by the Ministry of Railways and Technology Progress Award, and has injected "Water Design Manual," the ninth book, 90 years, "Energy Newsletter" magazine the end of the second phase of the valve made a presentation entitled "energy efficient water bottom valve" in the media. 94 years of activities in the country has won the two-500 State Economic Commission, Planning Commission, Science and Technology Commission assessment of the outstanding energy-saving products. The bottom valve design is reasonable, advanced manufacturing technology, installation, use and maintenance easy. And has little friction, long life, energy saving, widely used in petrochemical, chemical, textile, printing and dyeing, metallurgy, mining, irrigation and drainage pumping facilities and other industries.