DDC-JQ型电磁真空带充气阀是安装在机械真空泵上的阀门，并与泵接在同一
个电源上，泵的开启与停止直接控制阀门的开启与关闭。当泵停止工作或电源突然中断
时，阀能自动将真空系统封闭，并将大气通过 阀的充气口经阀充入到泵腔，从而避免泵
油逆流污染真空系统。
三精阀门有限公司位于泵阀之乡-瓯北镇,是一家集生产和销售高、中、低压阀门生产企业。生产的各种“三精”牌系列阀门,质量可靠，品种齐全，故全国各地，分别有闸阀系列.截止阀系列.止回阀系列.球阀系列.安全阀系列.减压阀系列.蝶阀系列.疏水阀系列.柱塞阀系列.旋塞阀系列.锻钢阀门系列.不锈钢阀门系列.美标阀门系列.电站阀系列.呼吸阀系列.隔膜阀系列..水力控制阀系列.电磁阀系列.针型阀系列.调节阀系列等………公称通径6mm-2000mm（1/4″-80″），公称压力0.1Mpa-60Mpa（150Lb-3500Lb）,工作温度-196℃-1300℃。主体材料采用：WCB、WC6、WC9、2GCr5Mo、2G1产品广泛应用于石油、化肥、钢铁、制药、化工高层建筑、纺织等领域。
本公司按照ISO9001质量体系标准执行， 始终如*力于依靠科技，不断创新，努力开发各种“三精”牌系列产品，能按照各类标准、各类材料、各种驱动形式的标准设计生产各种优质阀门。 三精人以*的技术与管理带给您质量的保证，以良好的信誉报答广大用户对三精系列产品的厚爱，秉承“一切为了用户满意”的经营理念，将不断应用新技术、新工艺、新材料积极开发新产品，为广大用户提供更优质的阀门产品和完善的售后服务，为建立现代化三精企业而努力奋斗。
Yongjiaxian Sanjing Valve Co.,Ltd is situated on Oubei,Yongjia, a town given the prestigious name of "hometown of pumpvalve in China ", we are a specialized valve manufacturer integrating development, production, installation, salesservice. We produce “SANJING” brand valve , quality reliabled, variety is completed with nothing missing, So to be in great demand all over the country.
Our products include gate valve , globe valve, check valve ,ball valve, safety valve, reducing valve, trap valve, Plunger valves ,plug valve, hydraulic control valve, solenoid valve, pintle valve, adjusting valve, series. Nominal diameter from 6mm to 2000mm（1/4″-80″）, Nominal pressure from 0.1 Mpa to 60Mpa（150Lb-3500Lb）, Working temperature from –196℃ to 1300℃, the main materials of the products are WCB、WC6、WC9、2GCr5Mo、2G1,The products are widely applied to the field of petroleum, chemical, metallurgical, power, fuel gas, city pipeline networksso on.
The company according to ISO9001 manufacture standard strict. We to rely on Sciencetechnology, we are innovated exertion all the time, exploitation various “SANJING” brand valveswe can according standard , material or drive way to designproduce high quality valves.
The products of Sanjing is protected for ahead of techniquemanage, In accordance with the marketing philosophy of "all for users", we will application new technique , new technics ,new materials unceasingly to to open updevelop new products, we will provide better productsserve, there will be more efforts to construct modernization “SANJING”.
本公司按照ISO9001质量体系标准执行， 始终如*力于依靠科技，不断创新，努力开发各种“三精”牌系列产品，能按照各类标准、各类材料、各种驱动形式的标准设计生产各种优质阀门。 三精人以*的技术与管理带给您质量的保证，以良好的信誉报答广大用户对三精系列产品的厚爱，秉承“一切为了用户满意”的经营理念，将不断应用新技术、新工艺、新材料积极开发新产品，为广大用户提供更优质的阀门产品和完善的售后服务，为建立现代化三精企业而努力奋斗。
Yongjiaxian Sanjing Valve Co.,Ltd is situated on Oubei,Yongjia, a town given the prestigious name of "hometown of pumpvalve in China ", we are a specialized valve manufacturer integrating development, production, installation, salesservice. We produce “SANJING” brand valve , quality reliabled, variety is completed with nothing missing, So to be in great demand all over the country.
Our products include gate valve , globe valve, check valve ,ball valve, safety valve, reducing valve, trap valve, Plunger valves ,plug valve, hydraulic control valve, solenoid valve, pintle valve, adjusting valve, series. Nominal diameter from 6mm to 2000mm（1/4″-80″）, Nominal pressure from 0.1 Mpa to 60Mpa（150Lb-3500Lb）, Working temperature from –196℃ to 1300℃, the main materials of the products are WCB、WC6、WC9、2GCr5Mo、2G1,The products are widely applied to the field of petroleum, chemical, metallurgical, power, fuel gas, city pipeline networksso on.
The company according to ISO9001 manufacture standard strict. We to rely on Sciencetechnology, we are innovated exertion all the time, exploitation various “SANJING” brand valveswe can according standard , material or drive way to designproduce high quality valves.
The products of Sanjing is protected for ahead of techniquemanage, In accordance with the marketing philosophy of "all for users", we will application new technique , new technics ,new materials unceasingly to to open updevelop new products, we will provide better productsserve, there will be more efforts to construct modernization “SANJING”.
有闸阀系列.截止阀系列.止回阀系列.球阀系列.安全阀系列.减压阀系列.蝶阀系列.疏水阀系列.柱塞阀系列.旋塞阀系列.锻钢阀门系列.不锈钢阀门系列.美标阀门系列.电站阀系列.呼吸阀系列.隔膜阀系列..水力控制阀系列.电磁阀系列.针型阀系列.调节阀系列等
