1、本单公司生产的4DSY-Ⅰ型电动试压泵是各类压力容器、管道、锅炉、钢瓶、阀门、压力容器、消防器材作实验室和水压试验中获得高压液体的理想设备。试压泵产品及配套试压、试验工程，已应用在航空领域的试压试验，并且在国防科研重点开发项目中应用。为我国重大的科研项目地下如：高压爆破试验、深海试验、空间技术、高温高压试验、异形管试验等，并做出了重大贡献。

2、4DSY-Ⅰ型电动试压泵系按水压试验要求而特殊设计。在试压的初始阶段具有较大流量、能迅速充液和升压,以缩短实验时间。当压力超过1.6MPa后、为使试压过程能较平稳而缓慢地进行。则流量自动减少。所以本泵在高、低压时有两种流量，并能自动变换，凡在额定排出压力以下，可进行任意数值的水压试验。

性能参数

型号	额定排 出压力 mpa	流量L/H		配套电机		外形尺寸 长×宽×高 mm	重量 Kg
		高压时	低压时	型号	功率KW
4DSY-I型180/4	4	180	362	Y90L-4	1.1	470×370×890	116
4DSY-I型146/6.3	6.3	146	328	Y90L-4	1.1	470×370×890	116
4DSY-I型104/10	10	104	286	Y90L-4	1.1	470×370×890	116
4DSY-I型65/16	16	65	247	Y90L-4	1.1	470×370×890	116
4DSY-I型40/25	25	40	222	Y90L-4	1.1	470×370×890	116
4DSY-I型29/40	40	29	211	Y90L-4	1.5	470×370×890	116
4DSY-I型21/63	63	21	203	Y90L-4	1.5	470×370×890	116
4DSY-I型14/80	80	14	196	Y90L-4	1.5	470×370×890	116

上海河山泵业有限公司（原上海河山液压机械厂）成立于八十年代，其后重组改为上海河山泵业有限公司，国内泵阀生产规模较大的研究开发制造基地之一，是一家集科研开发、设计咨询、销售于一体的经济实体。 公司自成立以来本着以人才为资本，以技术为动力，以客户需求为己任的经营理念，坚持“以客户为中心”的服务宗旨，产品不断优化、推陈出新。 目前，我厂生产的配件是我国配套范围泛单位之一，产品远销全国二十四个省、市、自治区,部分产品齿轮油泵、螺杆泵已实现出口，水泵广泛应用于化工、医药、食品、轻工、染料等工业中的蒸馏、结晶、干燥、浓缩、过滤以及真空冶炼的除汽、电气工业中的浸渗等，企业连续十几年被授于“重合同，守信用”荣誉称号，深受广大客户的好评。 在新的世纪里，我们决心以新的更高的起点研究开发新产品，以科技求发展，进一步推进企业上规模；产品上档次；管理上水平。坚持“用户、以诚为本，信誉至上，”的宗旨，为广大用户提供的服务，为实现辉煌的明天而携手共进。 Shanghai Heshan Pump Co., Ltd. (former Shanghai Heshan Hydraulic Machinery Factory) was established in the eighties, then re-changed to Shanghai Heshan Pump Co., Ltd., the domestic production of large-scale valve manufacturing base in research and development is one of a set of scientific research and development, design consulting, sales in one economic entity. Since its inception in line with talents, capital, technology-driven, customer demａnd as its own business philosophy. Adhere to the "customer-centric" principle of service, product constantly optimize, get rid of. At present, our factory components produced in China one of the units supporting the widest range of products are exported to the country 24 provinces, municipalities and autonomous regions, and some are gear pumps, pumps for export has been widely used in chemical, pharmaceutical, food, light industry, dye and other industries in the distillation, crystallization, drying, concentration, filtering, and vacuum refining of the inter gas, electric industry in the infiltration and so on, companies have been granted more than ten years in a row "heavy contract, keep promise" in honor title, well received by the customers. In the new century, we are determined to start a new and higher research and development of new products, technology development, further promote the business on the scale; product grade; management level. Adhere to the "customers first, sincerity-oriented, credibility first, quality assurance," the purpose, in order to provide customers with first-class services for the realization of a brilliant tomorrow hａnd in hand.