进口高性能双向压供热蝶阀性能描述 Performance description

高性能双向压供热蝶阀蝶板在启闭过程中，实现了蝶板密封圈与阀座密封面之间的无滑动磨擦·卡挤，密封面上的压力角大于磨擦角，采用了“径向动平衡密封系”设计，是蝶板开启阻力极低。启闭过程中蝶板密封面沿360°圆周各点可以瞬间快速完成，逐点接触和逐点脱离。开启密封即可分离，快速准确实现关闭接触自动相吻合的密封动作 RETZ During the opening and closing process of high-performance two-way pressure heating butterfly valve, the butterfly plate realizes no sliding friction and jamming between the sealing ring of the butterfly plate and the sealing surface of the valve seat. The pressure angle on the sealing surface is greater than the friction angle. The design of "radial dynamic balance sealing system" is adopted, which makes the opening resistance of the butterfly plate extremely low. During the opening and closing process, each point along the 360 ° circumference of the sealing surface of the butterfly plate can be completed instantaneously and quickly, with point by point contact and point by point separation. Open the seal to separate, quickly and accurately realize the sealing action of closing contact automatically matching

技术要求Applicable Standards

Design Code 设计标准:API 609 Catalog B & ASME B16.34

Face to face 结构长度:API 609 Category B, ANSI B16.10

ISO 5752 & BS EN 558 Series 3 / 13 / 14 / 19

DIN 3202 F4 / BS 515

Connection Standard 连接标准:NPS 2"~24" ASME B16.5

Above 24" ASME B16.47 A / B

Testing / Inspection 试验与检验:API 598

规格尺寸 Size : 2～40"

公称压力 Nominal pressure：PN10～160, CL150～900LB

适应温度 Applicable temperature ：-40～425℃

连接方式：对夹，法兰，凸耳，焊接 Connection mode: wafer, flange, lug, welding

进口高性能双向压供热蝶阀偏心结构说明Triple eccentric structure

●偏心1∶阀杆旋转中心线与阀座中心线偏离一定距离，保证密封面的完整性；Eccentric 1: The centerline of rotation axis/stem and seat deviate from each other for a certain distance to ensure the integrity of the sealing surface;

●偏心2∶阀杆旋转中心线与阀体中心线偏离一定距离，降低阀门启闭时密封副之间的摩擦力 Eccentric 2: The centerline of rotation axis/stem and body deviate from each other for a certain distance to reduce the friction between the sealing components when open and close the valve.

●偏心 3∶阀体中心线与阀座圆锥密封面中心线偏离一定角度，使阀门开启或关闭时，蝶板密封环与阀座之间迅速脱离或接触，密封副之间无摩擦、无卡挤 Eccentric 3: The centerline of valve body and conical seat sealing face deviate from each other for a certain angle to ensure the sealing ring of the disc can be separated or touched with seat rapidly so that friction and squeeze will not exist between the sealing components.

产品主要特点Productmainfeatures

●阀门采用三偏心结构，即在普通金属硬密封双偏心蝶阀的基础上增加了一个角度偏心。这个角度偏心的主要作用是∶使阀门在开启或关闭动作的过程中，密封环与阀座之间的任意一点都会迅速脱开或接触，做到密封副之间真正的"无摩擦"，极大地延长了阀门的使用寿命RETZ品牌 The valve uses a three-cam structure, that means an angular cam is added to a common metal hard seal bi-cam butterfly valve. This angular cam functions; to have any point between the seal ring and the seat ring quickly separated off or contacted during the valve open or close action to leave a true "non-friction' between the seal pairs, greatly extending the valve life.

●径向动平衡密封系统，通过优化设计，蝶板的进出口两侧受力近似平衡，阀门达到进出口双向可靠的密封性能的同时，有效降低了阀门的开启力矩 The radial dynamic balance sealing system, through optimization design, the forces on both sides of the inlet and outlet of the butterfly plate are approximately balanced, the valve achieves two-way reliable sealing performance at the inlet and outlet, and effectively reduces the opening torque of the valve (about 2/3 of the ordinary butterfly valve)

●蝶板密封环由片状不锈钢和碳纤维材料复合而成，不锈钢片为主密封，碳纤维为辅助密封，这种双重密封结构，使阀门密封更可靠，密封泄漏等级可达ASME B16.104 VI级或ISO5208 A级；The seal ring of the butterfly plateis made up with sheet stainless steel and carbon fiber by way of compounding, with the stainless steel sheet as the primary seal and thecarbon fiber as the assisting one. This dual-sealing structure makes the valve more reliably sealed and the seal leaking grade up to ASME B16.104 VI or ISO5208A.

●碳纤维夹层材料与普通供热煤阀的橡胶石棉板、石墨等材质的夹层相比，具有更环保、更耐磨、更耐冲刷、更可靠等特点、可达20万次无故障启闭 Compared to the sandwich of the common heat supply butterfly valve made of rubber asbestos plate, graphite etc materials, that of the carbon fiber sandwich features more environmental protection, more 'wearable, more resisting to scouring and more reliable, up to 200,00 times of non-failure open-close.

●高性能双向供热螺阀与管道通常采用焊接的方式连接，能彻底消除其它连接方式常见的垫片处泄漏等弊端，使阀门在并下安全运行 A welded connection way is usually used between the high performance bi-directional heating butterfly valve and the pipeline. This can completely eliminate the gasket leaking etc. problems commonly withthe other connection ways to havethe valve safely working in the well.

●高性能双向压供热蝶阀的端盖与低体采用焊接连接，与普通的用螺栓固定下端盖的供热蝶阀相比，这种设计的最大特点是，能杜绝下端盖与阀体连接处的渗漏，阀门运行更可靠 A welded connection way is used between the end cover and the body of the high performance bi-way heat supply butterfly valve and, compared to the common heat supply butterfly valve which uses a bolt to fix the lower end cover, what isthe biggest feature with this design is able to put an end to the leaking at the connection between the lovver end cover and the body, leaving the valve more reliably workable.

主要零部件材料 Main parts and materials