坚硬的阀座表面
Hard Seating Surfaces
由于楔塞独特的、无润滑旋转运动，使得阀塞和阀体阀座并不需要坚硬的表面，但是也可以根据用户的要求配置坚硬的表面。硬化的金属阀塞经过机加工，制成镜面光洁度，因此具有紧密密封和低扭矩。硬面楔塞阀可用于高温腐蚀或侵蚀蒸汽和油，或者石油蒸汽应用领域。
Hard facings on the plug and body seats are not
required due to the unique, non-contact turning motion of the Wedgeplug
and can be furnished to customer request. The hardened metal plugs are
then machined to a mirror-like finish for tight sealing and low torque.
Wedgeplug valves with hard facings are recommended for high temperature
corrosive and erosive steam and oil or oil vapor services.
阀座的选择
A Choice of Seats
金属阀座阀门可用于超高温或低温研磨流体介质。也可提供特殊冶金和硬面表面。
Metal seated valves are recommended for extremely
high or low temperatures and in abrasive media. Special metallurgy and
hard facing surfaces are available.
阀盖，阀杆和密封备选件
Bonnet, Stem and Seal Options
加长阀盖适用于低温应用
Extended bonnets for cryogenic service- 散热片适用于温度超过535oC的应用场合
Heat dissipating fins for temperatures > 1000oF
(535oC)
- 安装轴颈处理高压差并防止侧面负载
Trunnion mounts handle high differential pressures
and prevent side loading
- 填料和压盖总成配置两件式球体和承插连接，确保排列对准和恰当的填料压缩，且不会导致阀杆卡住。标准配置的填料是Grafoil®.
可提供各种填料配置。
Packing and gland assembly with two-piece ball
and socket-type joints assures alignment and proper packing compression
without stem binding. Standard packing is Grafoil®. A wide variety
of packing configurations are available.
清洗和冲刷
Purging and Flushing
楔塞阀独特的提升/旋转阀座运动形成行业内最有效的清洗蒸汽利用。不像其它结构需要连续的清洗蒸汽流，楔塞阀在阀门处于全开和全闭位置时关闭了清洗蒸汽流体，避免浪费清洗蒸汽，因此节约了相当于阀门价格的许多倍的成本，延长了阀门的使用寿命。
The unique lift/rotated seat action of the Wedgeplug
valve provides for the most efficient use of purge steam in the industry.
Unlike other designs that require a continuous flow of purge steam, the
Wedgeplug valve shuts off purge steam flow in the full open and full closed
position, saving many times the price of the valve in wasted purge steam
flow over the life of the valve.
七个凸起部位置符合ASME B16.34的标准，可以钻孔攻丝引入清洗或冲刷流体介质，通常是空气，氮气，蒸汽或冲洗油。为了清洗/冲刷管道内部，需要提供比管路压力还要高的清洗/冲刷流体介质压力，通过将固体颗粒冲刷回到循环管路内，而将阀座密封表面冲洗干净。
Seven boss locations per ASME B16.34 can be tapped
for introduction of purge or flushing media, typically air, nitrogen,
steam or flush oil. By supplying a higher pressure than the media line
pressure to the purge/flushing line inlets, the seating surfaces are flushed
clean by pushing particulate matter back into the line during cycling.
蒸汽套
Steam Jacketing
可提供蒸汽套阀门来处理高粘性流体介质，如焦油和沥青。其压力等级可为ASME Class 150和300，通径DN40至DN250。
Steam jacketed valves are available to handle
highly viscous media such as tars and pitches. They may be obtained in
ASME Class 150 and 300, sizes 1 1/2 in (40 mm) thru 10 in (250 mm).
简单的自动化
Simple Automation
Wedgetorque操作机构是标准配置。它具有优化的扭矩阀座密封，确保紧密双向密封，并弥补阀座磨损和工艺液流变动而产生的缺陷。这种操作机构使得手动操作容易进行，也简化了电动、气动或液动执行机构的配置。
Wedgetorque operators are standard equipment.
Providing optimum torque seating, they ensure tight bi-directional sealing
while compensating for seat wear and process temperature variations. They
allow easy manual operation and simple automation with electric, pneumatic
or hydraulic actuators. |
