原文：
这类阀门的冷工作压力应该为600 psi，两件式铸青铜阀体，聚四氟乙烯阀座，标准流道，分离式包装螺母，配置可调节阀杆填料，防吹出阀杆和镀铬黄铜/青铜球体。在需要xx压降的地方，需要采用不缩径全流道球阀或类似结构的阀门。阀门连接端口应该具有足够深度的美国国家标准协会ANSI螺纹，或加长焊接端口，并按照美国阀门和管件制造商标准化协会MSS-SP110标准制造。 可采用的标准流道阀门：美国尼伯科T-580-70球阀（螺纹）;S-580-70球阀（焊接） 可采用的不缩径全流道阀门：美国尼伯科T-585-70球阀（螺纹）;S-585-70球阀（焊接） 止回阀 通径DN65以下的止回阀应该采用Y形旋启式结构，并按照美国阀门和管件制造商标准化协会MSS-SP80标准制造，工作压力125磅级，符合美国材料试验协会ASTM B 62标准的青铜阀体，配置聚四氟乙烯阀座阀瓣，或配置弹性阀座的弹簧驱动升降式止回阀。阀门连接方式应该是螺纹或焊接。 可采用的阀门： 125磅级美国尼伯科T-413-Y止回阀（螺纹）;S-413-Y（焊接） 美国尼伯科T-480-Y弹簧驱动升降式止回阀（螺纹）;S-480-Y（焊接） 通径DN65以上的管线控制阀 蝶阀 这类阀门应该是凸耳或国际管道标准I.P.S.管状连接端口阀体，并按照美国阀门和管件制造商标准化协会MSS-SP67标准制造;通径DN50～DN300额定工作压力是200 psi非冲击冷水，DN350以上是150 psi。用于保温隔热绝缘的阀体具有2英寸的加长管径，材质是铸铁或球墨铸铁。蝶板材质是电镀球墨铸铁或铝青铜合金，配置丁纳橡胶-N阀座和密封;或丁纳橡胶-N涂层蝶板，配置聚合物涂层阀体。阀杆应该是400系列不锈钢，不能将阀杆暴露在蝶板紧固件上。通径DN65至DN150应该配置具有10个位置节流板的操作手柄;通径DN200以上的蝶阀应该配置齿轮操作机构。凸耳结构和管状结构蝶阀应该能够用作隔断阀，而且不需要下游法兰也可以在全压力下用在管道终端。手柄操作阀门应该适用于锁定在开启或关闭位置。 可采用的阀门： 凸耳阀体，电镀球墨铸铁蝶板的美国尼伯科LD3110-3蝶阀（手柄操作机构）;LD3110-5蝶阀（齿轮操作机构） 凸耳阀体，铝青铜蝶板的美国尼伯科LD2100-3蝶阀（手柄操作机构）;LD2100-5蝶阀（齿轮操作机构） 管状阀体，橡胶涂层蝶板的美国尼伯科GD4775-3蝶阀（手柄操作机构）;GD4775-5蝶阀（齿轮操作机构） 止回阀 通径DN65以上的止回阀应该采用平板式（对夹式）结构，并配置不锈钢弹簧，青铜阀瓣板，橡胶阀座，符合美国材料试验协会ASTM A 126级别B标准或A 48标准的铸铁阀体，配置125磅级或150磅级法兰。

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译文：
Cold working pressure of these valves should be 600 psi, two-piece cast bronze body, Teflon seat, standard flow, separate packing nut, adjustable stem packing configuration, anti-blowout stems and chrome brass / bronze ball. Where the pressure drop in the need to focus on the need to use full flow equal to equivalent diameter ball valve or similar structure. Valve ports should have sufficient depth of American National Standards Institute ANSI thread, or longer weld ports and valves and fittings in accordance with U.S. Manufacturers Standardization Society MSS-SP110 standards for manufacturing. Standard flow valves can be used: NIBCO T-580-70 ball valve (thread); S-580-70 (solder) Notations can be used in full flow valve diameter: NIBCO T-585-70 ball valve (thread); S-585-70 (solder) Check Valve Path DN65 valve should be used less Y-shaped swing structure, and in accordance with U.S. valve and pipe fittings Manufacturers Standardization Society MSS-SP80 standards of manufacturing, working pressure 125 lbs class, meet the American Society for Testing and Materials standard ASTM B 62 bronze body, Teflon seat disc configuration, or the configuration flexibility of the valve seat spring-driven lift check valves. Valve connections should be threaded or welded. ACCEPTABLE VALVES: 125 lbs class NIBCO T-413-Y valve (thread); S-413-Y (solder) NIBCO T-480-Y spring-driven lift check valve (thread); S-480-Y (solder) Path over the pipeline control valve DN65 Butterfly Such valves should be convex ear or international standard IPS pipe tubular port body, and in accordance with U.S. valve and pipe fittings Manufacturers Standardization Society MSS-SP67 standards of manufacture; Path DN50 ~ DN300 rated working pressure is 200 psi non-shock cold water, DN350 above 150 psi. For insulating the body with 2-inch longer diameter, material is cast iron or ductile iron. Disc material is ductile iron or aluminum-bronze alloy plating, configuration Duenner seat and sealing rubber-N; or Nitrile rubber-N coated disc, configuration of polymer coating body. Stem shall be 400 series stainless steel, not exposed stem butterfly fasteners. DN65 to DN150 path should be configured with 10 operating handle position throttling plate; over Butterfly Valve DN200 diameter gear operator should be configured. Lug butterfly valve structure and the tubular structure should be used as a cut off valve, and the need for downstream flanges can also be used in all pressure in the pipeline terminal. Handle operation of the valve should be applied to lock in the open or closed position. ACCEPTABLE VALVES: Lug body, electroplating ductile iron butterfly NIBCO LD3110-3 valve (lever operator); LD3110-5 Butterfly (gear operator) Lug body, aluminum bronze disc NIBCO LD2100-3 valve (lever operator); LD2100-5 Butterfly (gear operator) Tubular body, rubber-coated disc NIBCO GD4775-3 valve (lever operator); GD4775-5 Butterfly (gear operator) Check Valve Path DN65 valve should be used over flat (wafer type) structure and configuration of stainless steel spring, bronze disc plates, rubber seat, consistent with the United States Association for Testing and Materials Standard ASTM A 126 grade B or A 48 standard cast iron body, 125 pounds-class configuration or 150-pound flange.