英语翻译Rovalve Figure SB1700,2” thru 24”Bonnetless,knife gate v

英语翻译
Rovalve Figure SB1700,2” thru 24”
Bonnetless,knife gate valve,150 psi design for 150 psi CWP,cast stainless steel two-piece bolted-body with lug style port flanges standard with bolts holes drilled and tapped to ANSIB16.5/150,but capable of having PN10 or PN16 flange drilling as required,with machined raised gasket faces,face to face dimension per MSS-SP81.Body halves shall be identical and field replaceable for ease of repair and rebuild.Valve seating shall be provided by a bolt-in-place resilient seat positioned to seal around perimeter of gate for uninterrupted flow,with zero leakage of water allowed in both directions from full vacuum to the full rated pressure of the valve.The resilient seat shall be molded elastomer of EPDM(or as required for application) with integrally molded packing support bar.When installed,the body bolts shall go through the seat cross-section,firmly locking it in place.The valve seat shall not be visible in the packing area,instead an all-around-the-gate packing assembly shall be provided.To prevent atmospheric leakage,the packing assembly shall consist of a cast solid stainless steel packing gland,minimum four bolt design for even compression,with multiple layers of braided asbestos free Teflon impregnated synthetic or equal packing in valve chest.The packing assembly shall be fully adjustable without the use of special tools and shall be replaceable without completely disassembling the valve body or with the valve installed in a depressurized pipeline.Valve is equipped with a manual handwheel operator assembly featuring a cast ductile iron handwheel,a solid cast foot mounted yoke with a fully encapsulated acid resistant bronze stem nut which is completely replaceable from the top of the yoke without removing the yoke,and integral cast-in-place OPEN and CLOSED locking ears suitable for optional case hardened steel lock pin,including a 304 stainless steel rising stem.Yoke shall be convertible to bevel gear or cylinder operator in the field without welding.All nonferrous exterior surfaces shall be painted to factory standard.Specify Rovalve Figure SB1700.
无盖刀闸阀,为150psi CWP设计成150psi,铸造不锈钢二件式螺栓阀体,螺栓钻孔,具有凸耳式法兰,符合ANSIB16.5/150,但能实现PN10或PN16法兰钻孔要求,机加凸起垫圈面,面到面尺寸符合MSS-SP81.阀体的两半应该是相同的,容易现场替换,维修和复原.阀座是螺栓定位弹性阀座,固定在闸板四周的密封上,实现从全密封到阀门全额定压力两个方向的零泄露.弹性阀座应该是铸造弹性EPDM弹性体（或根据需要）,并带有完整填料支撑杆.安装时,阀体螺栓要穿过阀座横截图,紧紧地固定在它的位置上.填料区不应见到阀座,而应有全面闸板填料组件.为避免漏气,填料组件应有铸造实体不锈钢填料盖,为压缩均匀至少有四个螺栓,并带有不是Teflon浸渍合成的多层编织石棉.填料组件要可调整,而不需要特殊的工具,要能够更换而无需拆卸阀体或减压管线中的阀门.阀门要配有手动手轮,特点是可锻造铸铁手轮；实体铸造脚轭架,带有全封装耐酸青铜杆螺母,螺母能从轭架顶部更换不需移动轭架；适于硬钢锁销的整体开启和关闭锁耳

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无盖刀闸阀,为150psi CWP设计成150psi,铸造不锈钢二件式螺栓阀体,螺栓钻孔,具有凸耳式法兰,符合ANSIB16.5/150,但能实现PN10或PN16法兰钻孔要求,具有机加工凸起垫圈接触面,接触面尺寸符合MSS-SP81.阀体的两半应该是相同的,容易现场替换,维修和复原.阀座是螺栓定位弹性阀座,固定在闸板四周的密封上,实现从全密封到阀门全额定压力两个方向的零泄露.弹性阀座应该是铸造弹性EPDM弹性体（或根据需要）,并带有完整填料支撑杆.安装时,阀体螺栓要穿过阀座横截面,紧紧地固定在它的位置上.填料区应看不见到阀座,而应有全面闸板填料组件.为避免漏气,填料组件应有铸造实体不锈钢填料盖,为压缩均匀至少有四个螺栓,并带有不是Teflon浸渍合成的多层编织石棉.填料组件要可调整,而不需要特殊的工具,要能够更换且无需拆卸阀体或减压管线中的阀门.阀门要配有手动手轮,特点是可锻造铸铁手轮；实体铸造脚轭架,带有全封装耐酸青铜杆螺母,螺母能从轭架顶部更换不需移动轭架；适于硬钢锁销的整体开启和关闭锁耳