To reverse the seat disc, unscrew the disc screw and disassemble the disc washer and disc rubber from the disc holder assembly.

为了翻转阀座阀瓣，则要拧松阀瓣螺丝，从阀瓣固定器总成拆解阀瓣垫圈和阀瓣橡胶。

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NOTE: If minor leakage occurs, remove lock screw, lock washer and cap and lightly tighten packing gland nut.

注：如果出现少量的泄漏，则拆卸锁紧螺丝，然后锁住垫圈和阀盖，然后轻轻紧固填料压紧螺母。

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Products included are bolts, screws, studs, U-bolts, preassembled screw and washer assemblies (sems), and products manufactured the same as sems except without washer.

产品包括：螺栓、螺钉、螺柱、U型螺栓、预装配的螺钉和垫片组件以及与预装配组件一样加工的无垫圈产品。

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