The gasket cavity should face out to the adjoining flange.
垫圈的空穴应该面向临近法兰的外面。
2
The urethane liner extends over the flangeface to serve as the valve's flange gasket.
这种氨基甲酸乙酯延展覆盖到法兰表面,起到阀门法兰衬垫的作用。
3
CAUTION: Do not use any sharp tools such as a crowbar or screwdriver on the rubber during installation. Sharp instruments can damage the flangeface and cause possible leakage.