阀门的一部分

High performance valves and seats are available from Kehua with the following features ; Forged alloy steel AISI4119 construction Heavy-duty valve design Deep carburized wear surfaces Heavy-duty durable retainer threads Precise machined to API standards Taper post –heat treat machined to remove warpage Available in sizes to fit all major mud pumps Offer an expansive range of valves and seats such as premium cross arms valve and seat ,arms valve and seat. full-open valve and seat ,long-life bonded valve with urethane ,ling-life valve with urethane .wide choice of options available for requirements not met by hardened of stainless steel valves and elastomer –insert valve seats. he hardened steel liner service life surpasses 800 hour under the normal condition.