安装止回阀时,应特别注意介质流动方向,应使介质正常流动方向与阀体上指示的箭头方向相一致,否则就会截断介质的正常流动。底阀应安装在水泵吸水管路的底端。止回阀关闭时,会在管路中产生水锤压力,严重时会导致阀门、管路或设备的损坏,尤其对于大口管路或高压管路,故应引起止回阀选用者的高度注意。止回阀只供防止各类管路或设备上流体介质逆流的单向启闭阀。
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~F
台湾锐力REXPOWER减压阀部分型号如下:
MGV-02-P-0 MGV-02-A-0 MGV-02-B-0
MGV-02-P-1 MGV-02-A-1 MGV-02-B-1
MGV-02-P-2 MGV-02-A-2 MGV-02-B-2
MGV-02-P-3 MGV-02-A-3 MGV-02-B-3
MGV-03-P-0 MGV-03-A-0 MGV-03-B-0
MGV-03-P-1 MGV-03-A-1 MGV-03-B-1
MGV-03-P-2 MGV-03-A-2 MGV-03-B-2
MGV-03-P-3 MGV-03-A-3 MGV-03-B-3
台湾锐力REXPOWER电液换向阀部分型号如下:
SWDH-04G-3C2-A22D SWDH-04G-3C3-A22D SWDH-04G-3C4-A22D
SWDH-04G-3C5-A22D SWDH-04G-3C6-A22D SWDH-04G-3C9-A22D
SWDH-04G-3C7-A22D SWDH-04G-3C8-A22D SWDH-04G-3C10-A22D
SWDH-04G-3C12-A22D SWDH-04G-2D2-A22D SWDH-04G-2D3-A22D
SWDH-04G-3C11-A22D SWDH-04G-3C40-A22D SWDH-04G-3C60-A22D
SWDH-04G-2D8-A22D SWDH-04G-2B10A-A22D
SWDH-04G-2B2-A22D SWDH-04G-2B3-A22D SWDH-04G-2B8-A22D
SWDH-04G-2B2B-A22D SWDH-04G-2B3B-A22D SWDH-04G-2B4B-A22D
SWDH-04G-2B2S-A22D SWDH-04G-2B3S-A22D SWDH-04G-2B2A-A22D
SWDH-04G-2B3A-A22D SWDH-04G-2B11B-A22D SWDH-04G-2B12B-A22D
SWDH-04G-2B9B-A22D SWDH-04G-2B60B-A22D SWDH-04G-2B9A-A22D
SWDH-04G-3C2-A11D SWDH-04G-3C3-A11D SWDH-04G-3C4-A11D
SWDH-04G-3C5-A11D SWDH-04G-3C6-A11D SWDH-04G-3C9-A11D
SWDH-04G-3C7-A11D SWDH-04G-3C8-A11D SWDH-04G-3C10-A11D
SWDH-04G-3C12-A11D SWDH-04G-2D2-A11D SWDH-04G-2D3-A11D
SWDH-04G-3C11-A11D SWDH-04G-3C40-A11D SWDH-04G-3C60-A11D
SWDH-04G-2D8-A11D SWDH-04G-2B10A-A11D
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。