结构特点
DESIGN FEATURES

• 结构紧凑，非常坚固，适用于高压高温应用领域。
  A compact but extremely sturdy design for high pressure-temperature service.
• 实心钨铬钴合金6楔板（备选项），确保较低的磨损和较长的使用寿命。
  Solid Stellite 6 wedge (optional) ensures low friction and long service life.
• 1500磅级的阀门和用于蒸汽应用领域的阀门，其阀座是通过密封焊接到阀体上的。
  For Class 1500 valves and for steam service, seats are seal-welded to the body.
• 填料环经过4000 psi高压预压缩，具有完整的密封性能。
  Packing rings are precompressed to 4000 psi to provide a high integrity seal.
• 焊接阀帽阀门，阀帽经过螺纹旋进，旋进扭矩达到工程扭矩值，阀体阀帽连接是强度-焊接连接，这样具有双重保护防止泄露。（阀体/阀帽螺纹和强度-焊接连接）。
  For welded bonnet valves, the bonnet is threaded in and torqued to an engineered torque value and the body bonnet joint is strength-welded, offering double protection against leakage. (Body/bonnet threads and strength-weld).
• 全导向楔板减少阀座表面的磨损。
  Fully guided wedge reduces wear on seating surfaces.
• 可维修的2件式阀杆驱动。
  Repairable 2-piece stem drive.

备选功能（适用于特殊应用领域）
OPTIONAL FEATURES (SPECIAL APPLICATIONS)

• 可选用特殊的设计结构，双重填料，无泄漏连接，动负载和便于拆卸旧填料的填料吹出结构。
  A special design is also available with double packing, leak-off connection, live-loading and a packing blowout for easy removal of old packing.
• 适用于烃化物应用领域的螺栓阀帽闸阀（氟化氢酸应用领域请参阅第19页）。
  Bolted Bonnet Gate Valves for Alkylation service (HF Acid service see page 19).
• 平行滑动闸阀。
  Parallel Slide Gate Valves.
• DN15 - DN40，ASME 150，300和600磅级。
  API 603 ¹/₂–1¹/₂" (15– 40 mm), for ASME Classes 150, 300 & 600.