O形密封的工作原理
How the O-Seal Works

　　在阀塞表面有一个机加工的槽。这个槽为楔形榫头形状，在任何工作状态下将聚四氟乙烯环固定在所在位置。
　　Grooves are machined on the face of the plug. The dovetail shape holds the PTFE O-ring in place under all operating conditions.
　　嵌入在槽内的聚四氟乙烯并没有完全填满空穴。高压会使O形环轻微变形并且使其密封更加紧密。也可以提供其他密封材料，请咨询工厂。
　　The PTFE inserted in the grooves does not completely fill the cavity. High pressure slightly distorts the O-ring and seals it tighter. Other sealing materials may be available; consult factory.

受保护的双重阀座
Protected, Double Seating

　　当阀门处于开启和关闭状态时，阀塞都位于阀体阀座内。这样既保护了阀体阀座，也保护了阀塞的一部分，使其不会接触到管路上的任何研磨物质。
　　The plug is seated in the body seats when the valve is in both open and closed positions. This protects both body seats and the portion of the plug making seating contact from any abrasives in the line.

适用于O形密封阀门的填料
Packing for O-Seal valves:

　　标准配置是Graphoil®.
　　Graphoil® is standard.

　　消防防火结构
　　Firesafe Design
　　楔塞O形密封阀门已经成功地通过API标准607，英国标准BS 6755部件2，和API标准6FA的消防防火测试。
　　Wedgeplug O-Seal valves have been successfully fire tested in accordance with API Standard 607, British Standard BS 6755, Part 2 and API Standard 6FA.

应用建议
Service Recommendations

　　楔塞O形密封旋塞阀具有积极的、无泄漏特性，不但是最好的通用的阀门，用于处理碳化氢(烃类)，植物油，溶剂等，还特别适用于严酷的应用环境，如丁烷，丙烷，丁二烯，丙酮，乙醇，氨，无水氨，苯，氯乙烯，干氯，道氏热载体，乙烷，乙烯，氯化氢，萘，氧，氢，邻苯二甲酸酐，干碳酰氯(光气)，磷酸，碳酸钾，苯乙烯，融化硫，二氯化硫，以及温度在-184^oC至232^oC之间，压力在阀门额定压力等级范围内的有关应用。对于更高温度应用，请咨询工厂。
　　Wedgeplug O-Seal plug valves with their positive, no-leak features are not only recommended as the best general purpose valves for handling hydrocarbons, vegetable oils, solvents, etc., but are ideal for such tough service as butane, propane, butadiene, acetone, ethyl alcohol, ammonia, anhydrous ammonia, benzene, vinyl chloride, dry chlorine, Dowtherm, ethane, ethylene, hydrogen chloride, napthalene, oxygen, hydrogen, phthalic anhydride, dry phosgene, phosphoric acid, potassium carbonate, styrene, molten sulphur, sulphur dichloride and related services within a temperature range from -300^oF to + 450^oF within pressure limits of the valves. Consult factory for higher temperature applications.
　　在-45^oC下，必须采用特殊合金。这些阀门特别适用于歧管装置，化工厂，机场加油设施，油轮，炼油厂，和作为管道截断阀。
　　Special alloys must be used below -50^oF. These valves are perfect performers for manifolding, chemical plants, airport fueling facilities, tanker service, refineries, and as pipeline block valves.
　　在大多数应用中，O形密封能够有效的双重阻塞和排气，确保管路内的流体介质不受外部物质和滞留固体颗粒的侵扰。
　　The O-Seal feature will effectively double block and bleed in most services, provided the line media is free of foreign matter and solids in suspension.

无润滑，经济型
Non-Lubricated, Economical

　　楔塞阀结构有利于迅速轻便的开启和关闭，而不会被卡住。不需要昂贵的阀塞密封润滑剂。楔塞阀配置Wedgetorque®操作机构，能够从阀体阀座中迅速提升锥形阀塞，旋转90度，然后重新将阀塞准确地放置到阀体阀座内，实现精确地金属对金属匹配和聚四氟乙烯O形环密封。
　　The design of Wedgeplug valves assures quick, easy opening and closing with no sticking. Expensive plug seal lubricants are not required. The Wedgeplug valve is equipped with a Wedgetorque® operator which quickly lifts the tapered plug from the body seats, turns it 90 degrees, then reseats the accurately ground plug on the body seats, making a precision metal-to-metal fit and sealing the PTFE O-rings.

无污染
No Contamination

　　由于楔塞阀不需要密封润滑，因此它们是用于下列应用，液态和气态氧和氮，食品，精炼石油产品，以及各种其他采用阀塞弥缝润滑油会污染产品和造成损坏的化工产品。
　　Since Wedgeplug valves do not require seal lubricants, they are suitable for such services as liquid and gaseous oxygen and nitrogen, food products, refined products, and various other chemicals where the presence of greases used for plug seal lubricants would contaminate the products and be harmful.

O形密封阀塞
O-Seal Plug