New goods. New services. Doyle's Valves, Ltd. http://1631.us.all.biz Sun, 26 Feb 2012 07:17:08 +0200 http://www.all.biz/img/logo.gif http://1631.us.all.biz http://www.us.all.biz/g729/ The R check valve is a unidirectional valve used on mud choke manifolds. End connections can be flanged, clamp hub, butt weld, or a combination. These valves can be supplied to all API 6A temperature and retained fluid classifications.]]> Tue, 26 Jun 2007 00:00:00 +0300 http://www.us.all.biz/g729/ http://www.us.all.biz/g727/ The MS type check valve is used primarily in high pressure mud choke manifolds and high pressure Christmas tree injection and kill lines. MS check valves are used with oil, gas. or water based drilling fluids and are available in standard trims. End connections can be flanged, clamp hub, butt weld, or a combination. These valves can be supplied to all API 6A temperature and retained fluid classifications.]]> Tue, 26 Jun 2007 00:00:00 +0300 http://www.us.all.biz/g727/