FD25FA10/20B03上海立新平衡阀
技术参数
公称通径:21/16“~41/16“
工作压力：2,000~15,000PSI
温度：-60°C~+121°C(K,U)
产品规范级别：PSL3~4
产品性能级别：PR1~2
材料级别：AA~FF
常见故障
常见故障
①阀瓣打碎；
②介质倒流。
引起阀瓣打碎的原因
止回阀前后介质压力处于接近平衡而又互相“拉锯”的状态，阀瓣经常与阀座拍打，某些脆性材料（如铸铁、黄铜等）做成的阀瓣就被打碎。
预防的办法是采用阀瓣为韧性材料的止回阀。
介质倒流的原因
①密封面破坏；
②夹入杂质。修复密封面和清洗杂质，就能防止倒流。
FD25PA10/20B00
FD25PA10/30B00
FD25PA10/40B00
FD25FA10/20B00
FD25FA10/30B00
FD25FA10/40B00
FD25KA10/20B03FD25FA10/20B03上海立新平衡阀
FD25KA10/30B03
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FD25PA10/20B03
FD25PA10/30B03
FD25PA10/40B03
FD25FA10/20B03
FD25FA10/30B03
FD25FA10/40B03
FD32KA10/20B00
FD32KA10/30B00
FD32KA10/40B00
FD32PA10/20B00
FD32PA10/30B00
FD32PA10/40B00
FD32FA10/20B00
FD32FA10/30B00
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FD32KA10/20B03
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FD32KA10/40B03
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FD32PA10/40B03FD25FA10/20B03上海立新平衡阀
FD32FA10/20B03
FD32FA10/30B03
FD32FA10/40B03