安全溢流閥：
通常用于工作機構(gòu)極限保護，例如變幅油缸
電磁溢流閥：
用于工作機構(gòu)的超限保護，例如：起重機的力矩限制，三圈保護等。

控制閥選型的原則
1、 根據(jù)工藝條件，選擇的結(jié)構(gòu)形式和材料。
2、 根據(jù)工藝對象的特點，選擇控制閥的流量特性。
3、 根據(jù)工藝操作參數(shù)，選擇的控制閥口徑尺寸。
4、 根據(jù)工藝的要求，選擇所需要的輔助裝置。
5、 合理選擇執(zhí)行機構(gòu)。執(zhí)行機構(gòu)的響應(yīng)速度應(yīng)能工藝

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北京華德液壓全系列 具體型號及報價請聯(lián)系客服
北京華德先導(dǎo)式溢流閥部分型號：
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