Bolted bonnet with seal weld.

密封焊接的螺栓阀帽.

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Pressure seal, bolted bonnet, full port.

压力自紧式密封, 螺栓连接阀盖, 全径.

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Bolted Bonnet Gate Valves for Alkylation service ( HF Acid service see page 19 ).

适用于烃化物应用领域的螺栓阀帽闸阀 ( 氟化氢酸应用领域请参阅第19页 ).

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This kit allow conversion, in the pipe line, from bolted bonnet valves to bellows leakproof valves.

这个组件可以将螺栓阀帽阀门在管道内转换成波纹管密封防泄漏阀门.

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