通过阀座气密性的短程或远程保护提供*关闭。 Positive shutoff with visual or remote proof of seat tightness.
没有产品污染的气密性。 No product contamination absolute tightness.
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.
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.
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）.
配置410不锈钢和密封焊接的阀座硬面。 Seat hardfaced with SS 410 and seal welded.
