API600伞齿轮闸阀

API600闸阀特点

1. 通过阀座气密性的短程或远程保护提供完全关闭。
   Positive shutoff with visual or remote proof of seat tightness.
2. 没有产品污染的绝对气密性。
   No product contamination absolute tightness.
3. 双阀座：合成橡胶 -金属阀座加上金属-金属第二重密封。
   Dual seating.
   Elastomer-to-metal seat plus metal-to-metal secondary seal.
4. 防火：如果第二重合成橡胶阀座在火灾期间被损坏，则金属-金属阀座还可以保证气密性。
   Fire Safe.
   The metal-to-metal seat ensures tightness if the secondary elastomer seat is damaged during the fire.
5. PTFE阀座镶嵌件：抗介质的腐蚀，在工作温度达到204°C时，具有很好的抗磨能力。
   PTFE seat insert
   resists corrosive media, has high abrasion resistance and operates
   up to +400°F (204°C).
6. 配置410不锈钢和密封焊接的阀座硬面。
   Seat hardfaced with SS 410 and seal welded.

易于在线进行阀门阀座维修
EASY IN-LINE VALVE RESEATING

阀座用410不锈钢进行硬面，通过焊接装配延长使用寿命。将楔板从阀体上拆卸后，磨损的软阀座镶嵌件就很容易更换了。在更换阀座镶嵌件之前，关闭流体，减轻压力。
Seats are hardfaced with SS 410 and welded-in for lifetime service. A worn soft seat insert can easily be replaced after removal of wedge from the body. Shut off flow and relieve pressure before replacing the seat insert.

标准 STD

压力试验  Pressure Test