... face and end to end:ASME B16.10 Pressure-temperature ratings:ASME B16.34.Strainer feature and direction:Strainer ... and food industry etc.Applicable medium:1,Weakcorrosively medium for petrochemical production such as water,ammonia,oil and hydrocarbon ... hydrate,caustic soda,metric acid,acetic acid etc.3,Low temperature medium for refrigeration,the refrigerat such as liquefied methane,liquefied ammonia ...