1、
2、
3、
The molded step of the diaphragm should point down towards the relief valve stem.
隔膜的模制台阶应该对着安全阀阀杆.
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4、
The preferred position for the 2300 is in a horizontal line with the spring chamber up.
2300首选位置是在水平管线上,弹簧隔膜朝上.
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