进口全金属双向压蝶阀 美国RETZ瑞茨

　　RETZ工业/美国瑞茨，我们一直致力于流体控制领域的持续创新，始于2005……

　　金属硬密封双向压蝶阀采用三维偏心结构，蝶板、阀座密封面加工精度高。蝶板在开启的瞬间，密封面 脱离 ；蝶板在关闭的过程中几乎无摩擦，关闭轻便。具有越关越紧自锁功能，自密封性能，密封性 能稳定可靠The metal hard sealed bidirectional pressurebutterfly valve adopts a three-dimensional eccentric structure, with highmachining accuracy for the sealing surface of the butterfly plate and valveseat. At the moment of opening, the sealing surface of the butterfly platedetaches; The butterfly plate has almost no friction during the closingprocess, making it easy to close. It has a self-locking function that tightensas it closes, with self sealing performance and stable and reliable sealingperformance

　　进口硬密封双向压蝶阀产品详情 Product details

　　金属硬密封双向压蝶阀阀座密封圈完全由金属材料制成，且做表面硬化处理，就算启闭频繁，阀门仍能保持高的密封性能，杜绝了多层次密封结构不耐冲刷等弊端，极大提高了阀门的使用寿命 retz品牌 The seat/seal ring is completely made ofmetal materials and dealt with ssurface hardening treatment so that the valvecan be under high sealing performance even open/close with high frequency. Longlife design protects the multi-layer sealing structure from eroding and othershortcomings, greatly improve the service life of the valve.

　　填料密封的高性能High performance of packing sealing

　　采用组合式填料密封系统，确保阀门泄漏率≤20ppm。可选用动载密封结构，使填料持久密封，延长填料免维护周期 Adopt packing-combined sealing system toensure the leakage rate≤20 PPM at maximum. the dynamic sealingstructure is available if necessary, which make the packing sealing under goodcondition and prolong the free maintenance period of packing.

　　阀杆可设计成符合API609之规定的“防吹出”结构 retz品牌 The valve stem shall be designed with the"Blow-out Structure" in accordance with API609 standard.

　　依靠扭矩密封Sealing with Torque

　　阀门至始至终都能保持优越的双向密封性能，阀门密封不依靠介质力，完全由驱动装置提供的扭矩实现密封，阀门在高、低压下均能可靠密封。密封性能检测结果符合API609、ISO5208等标准之规定Sealing with torque keeps valve havingsuperior two-way sealing performance. Valve completely sealed by torque of theactuator rather than forces produced by media, which makes valve sealed underhigh and low pressure unfailingly. Sealing performance test results meet therequirement of the API609, ISO5208 and other Standards that concerns.

　　本质防火设计Essence of fire protection

　　全金属密封副结构，使阀门具有本质防火特性，且测试结果符合API607的规定 Full metal sealing structure makes valvecarry the property of fire protection and the test results comply with theprovisions of the API607 Standard.

　　首先对本蝶阀进行API 598测试，正向和反向阀座密封泄漏均为零，壳体测试无外漏 The valve was tested first to API 598 withzero seat leakage in preferred and non-preferred directional and zero on shellbefore fire safe testing.

　　将此阀推入燃烧室, 燃烧温度控制在750 ~ 1000℃, 火焰持续时间30分钟。然后在反向阀座测试重复测试泄漏量 Valve during burn period is exposed to750~1000℃ flames for duration of 30 minutes. Then the test isrepeated in the non-preferred directional.

　　采用水淋方式快速降低阀门温度至100℃以下 Rapid water quenching lowers the valvetemperature to below 100℃. This is performed twice, once in eachdirection

　　阀座/密封圈可现场更换 Seat/sealing ring can be replaced on field

　　可更换式阀座/密封圈设计，便于阀门现场维护保养 Replaceable seat/sealing design makes valveeasily maintained on field.

　　进口硬密封双向压蝶阀技术规范 Technical specifications

　　阀体Valve body：WCB、CF8、CF8M

　　轴Shaft：17-4PH

　　阀座Overlay 13Cr/Stellite、Overlay SS316/Stellite、OverlaySS304/Stellite

　　蝶板Butterfly plate：ASTMA216WCB、ASTMA351CF8、ASTMA351CF8M

　　规格尺寸 Size : 2"~24"

　　公称压力 Nominal pressure：PN10～40, CL150～300LB

　　适应温度 Applicable temperature ：-40～425℃