Low Temperature and Cryogenic Applications
浮动式（长发动机罩）和固定式（短帽子）球阀结构,KTM球阀已广泛应用于低温和低温应用，包括LNG（液化天然气），它正在迅速成为一个更好的替代能源。有了成熟的设计和经过多次成功的引用，KTM品牌继续受到*终的选择过程中的质量球阀用户的优选
Floating Type (long bonnet) and Trunnion Type (short bonnet) Ball Valve Structures
KTM ball valves have been widely used in low temperature and cryogenic applications, including LNG (Liquefied Natural Gas) which is fast becoming a better alternative source of energy. With a proven design and after many successful references, the KTM brａnd name continues to be preferred by end-users as the process quality ball valve of choice.
Features & Benefits:
- Extension bonnet protects the glａnd packing. Two types of extension bonnet (short and long) are available to better locate the “Glａnd Packing” at ambient temperature zone. This will help protect it from freeze-damage caused by low temperature fluid.
- Cavity pressure relief.
- Excellent seat and seal design minimizes leakage.
- Low operating torque for smoother operations.
- Fire-safe design.
- Fugitive emission compliance.
- Rigid body construction minimizes thermal shrinkage.
Specifications
Technical Data
Sizes: 1/2" to 30"
Pressure rating: ASME Class 150, 300 and 600
Temperature: Room temperature to -320°F
Body Material:
A352 Gr. LCC/LCB (-50°F)
A351 Gr. CF8/CF8M (-320°F)
Standards:
ASME B16.34, B16.5
BS 6755, BS 6364 (Valves for cryogenic service)
Shell MESC 77/306
CE marking (PED) 97/23/EC
Special Tests:
Liquid penetrant test
PMI test
X-ray test
Pressure test at low temperature
General Applications:
Propane -44°F
Ethane -128°F
Ethylene -155°F
Methane -260°F
Liquefied natural gas (LNG) -260°F
Oxygen -297°F
Nitrogen -320°F
