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調節閥 疏水閥 截止閥 其 它
STA高低壓旁路調節閥

發布時間:2017-08-20

STA高壓旁路調節閥是一種結構新穎的特殊高壓差調節閥,它兼有啟動調節閥,減壓旁路閥和安全閥的作用。該閥可實現快速自動跟蹤超壓保護,省去鍋爐安全閥。

  • 產品詳情


高低壓旁路調節閥是一種結構新穎的特殊高壓差調節閥,它兼有啟動調節閥、減壓旁路閥和安全閥的作用。該閥可實現快速自動跟蹤超壓保護。

該閥可實現快速啟動,電動執行機構的控制系統通過調節蒸汽壓力以適應機組不同工況的滑參數啟停和運行;繼續甩負荷后鍋爐可以不立即熄火,等事故排除后,幾分鐘內即可重新投入運行,既減少鍋爐的啟停次數,又減少了對汽輪機的熱沖擊。減溫水的調節與高壓旁路快速聯動,能大幅度降溫降壓,減少電廠龐大的減溫減壓系統及設備,所以該閥是大容量單元再熱機組旁路系統的重要調節閥之一。



技術參數和性能:


型    式   直通型、角型、“Z”型

公稱通徑   DN200~600

公稱壓力   PN40~420

磅級壓力   CL300~2500

閥體材料    20#、A105、12Cr1MoV、F22

內件材質    不銹鋼+STELLITE堆焊+高級滲氮

流量特性    等百分比、線性、快開

填    料    石墨鎳絲成型填料+高碳纖維


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