起订量:
不锈钢上装式球阀
莱斯得阀门有限公司创建于1998年,曾用名(永嘉县宏球阀门有限公司,浙江宏球阀门有限公司,温州莱斯得燃气设备有限公司)。公司地处于中国泵阀之乡的浙江省永嘉瓯北镇和一工业区。公司拥有占地面积5500平方米的三层生产厂房,生产车间面积12000平方米,注册资金为5100万元,固定资产5500万,拥有精良*生产设备100余台。
莱斯得阀门有限公司先后通过了ISO9001质量体系认证、特种设备制造许可证TS、环境体系认证、职业健康与安全管理体系认证、美国石油协会API 6D认证、防火API STD 607认证、欧盟CE认证、俄罗斯GOST认证。莱斯得阀门有限公司是一家具有集科研开发、生产制造、市场营销于一体的阀门企业, 公司阀门品种齐全,主要生产国标GB、美标API、ANSI、英标BS、德标DIN、法标BS、日标JIS等标准的阀门系列,产品材质:材料碳钢、铬钼钢、不锈钢、低温钢、合金钢、耐热钢、耐腐蚀钢等;产品通径:DN15(1/2")到DN1200(48");产品公称压力:PN1.6到32Mpa、150LB到2500LB;产品工作温度:-196℃到650℃,并可根据客户要求制造各种非标产品,产品广泛应用于国内自来水、石油、化工、天然气、冶金、制药、造纸、环保污水处理、电站等行业项目,并且大量出口市场。
莱斯得阀门公司,以严格的质量管理,诚实信用的精神与优良的售后服务,赢得广大用户的信赖。我们一直秉承“质量优先、开拓创新、诚信经营、双赢互利”的质量方针,不断提高管理水平和产品质量,让客户得到满意的产品和服务。我们竭诚欢迎国内外新老客户光临惠顾,携手奋进,共展宏图。
China. Laiside Valve Co., Ltd (company profile)
Laiside Valve Co., Ltd. was founded in 1998, once known as (Yongjia county Hongqiu Valve Co., Ltd., Zhejiang Hongqiu Valve Co., Ltd., Wenzhou Laiside Gas equipment Co., Ltd.). Located in the industrial zone,known as the countryside of Chinese pump valve in Heyi Village in Oubei Town, YongJia County, ZheJiang Province, the company has three-floor factory workshops, covering an area of 5500 square meters, with the production workshop of an area of 12000 square meters. Its registered capital is 51 million yuan, and the fixed assets is 55 million yuan. The professional production equipment is more than 100 sets.
Laiside Valve co., Ltd. has gained a series of certifications, that is, ISO9001 quality system certification, special equipment manufacturing license TS, environmental system certification, occupational health and safety management system certification, American petroleum institute API 6D certification, fire prevention API STD 607 certification, the European Union CE certification, and the Russian GOST certificate. Laiside Valve co., Ltd., is a valve enterprise, ranging from new product research and development, manufacturing, to marketing. There is a wide variety of our products, mainly about GB, API, ANSI, BS, DIN, BS, JIS standard valves. The material includes carbon steel, chrome molybdenum steel, stainless steel, low temperature steel, alloy steel, heat-resistant steel, corrosion resistant steel, etc. The size ranges from DN15 (1/2 ") to (48 "). The pressure of the products is PN1.6 to 32 Mpa, and 150 LB to 2500 LB. The working temperature ranges from - 196 ℃ to 650 ℃. And we also can manufacture various non-standard products according to customers’ requirements, which are widely used in China’s tap water, oil factories, chemical factories, natural gas, smelting, pharmacy, paper making, sewage disposal, power plant and other industries. A lot of products have been exported to many international markets.
With strict quality management, spirits of honesty and credibility and perfect after-sales service, Laiside Valve co., Ltd., wins the trust and satisfy the needs of all the customers. Adhering to the principle of "best quality, innovation, and integrity”, we give a hearty welcome to all the customers at home and abroad.
不锈钢上装式球阀公称尺寸 ≤ DN200 。其球体上施加一压缩弹簧,压缩弹簧的作用是在球体上施加预紧力,使阀座密封面在任何情况下都紧密接触,密封性能好。阀座与阀体接触面的楔角为 10°,阀座能够自锁,在管路方向上,当阀座受到较大的压力时,阀座不会产生任何位移。故这种结构的阀门既有闸阀的特点又有球阀的优点。在维修检查中发现,阀体与阀座易出现泄漏,如果增加弹簧的预紧力,势必增加球阀的关闭力矩。为了不增加球阀的关闭力矩,在阀座密封面背面加一橡胶 O 形圈,解决了阀座密封面背面泄漏问题。
上装式球阀密封性能好:金属阀座尾端设置弹簧保证密封面有足够的预顶力,阀门在使用过程中密封面磨损时,在弹簧作用下阀门保证良好的密封性能;而当介质压力较高时,介质在球体产生的不平衡力保证密封。
不锈钢上装式球阀特点
上装式球阀采用下装式阀杆,设置倒密封结构,能确保填料处可靠密封。
上装式球阀顶装设计:只要卸下阀盖即可进行维修或更换零件。
上装式球阀广泛适用于粉尘、颗粒、高粘度等介质。
上装式固定球阀的缺点是弹簧预紧力不能调整和控制,而且装配时弹簧压缩量大,装配困难。为了解决这个问题,弹簧材料选用 ANSI 302 代替 304。ANSI 302 弹簧刚度好,其耐蚀性与 304 相近。另外,增加了弹簧座和调整螺母,在阀座外圆和弹簧座上分别车削螺纹,用调整螺母将弹簧压紧到弹簧座内,将阀座组合件装入阀体。由于安装球体之前弹簧已被压缩,所以安装球体很方便。当球体装配后,将调整螺母退出弹簧座,此时弹簧对球体预紧力较小。如果要增加预紧力,可用调整螺母进行调整。