For ease of installation, insert all flange bolts through the valve flange and then through the sleeve flange, but do not let the bolts extend beyond the surface of the flange rubber (See Figure 4).
This paper reports the development and the application detail of cobalt-free, lead-free and environmentally friendly exhaust valve seat insert.
这篇论文详细报道了无钴、无铅及有利于环境的排气阀座圈的开发与使用。
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Hydraulic control adopt insert type compact valve system, with reliable operation, long service life, minimized hydraulic shock, minimized duct connection and possible leak point.