Valan TORQSEAL^™ 三重补偿，金属阀座蝶阀
零泄漏，双向，API 607消防防火，长使用寿命，
性能可靠，绝对隔断，适用于：
发电，石油炼制，油、气生产，化工，石化，
气体加工，低温应用，纸浆和造纸
环保型
通径：DN80 - DN900
Valan TORQSEAL^™ Triple Offset, Metal-Seated
Butterfly Valves
Zero Leakage, Bi-directional, Firesafe to API 607
Long Cycle Life, Reliable Performance
Positive Isolation for:
Power Generation, Petroleum Refining
Oil & Gas Production
Chemical, Petrochemical and Gas Processing
Cryogenics, Pulp & Paper
Environmentally Friendly
Sizes: 3 - 36" (80 - 900 mm)

DN800侧面进入低温蝶阀
32" side entry cryogenic butterfly valve

安装在烃蒸汽返回到分馏器管道上的四个DN350，磅级300，
C12，配置气动执行机构的Velan Torqseal阀门，工作环境
接近454^oC @ 50 psi
Four 14" Class 300, C12, pneumatically operated, Velan
Torqseal Valves in hydrocarbon Vapor lines on return to
Fractionator and they operate at approimately 850^oF @ 50 psi.