日本Emerson Yarway蒸汽疏水阀129Y-III 3/4B 129YB YARWAY DISC STEAM TRAPSSERIES 129YB, 129Y-III/YF, 129YH 129YB - High performance disc type steam trap with integrated bypass mechanism129Y-III/YF - Disc type steam trap with excellent performance and optimal drain discharge129YH - Versatile disc type steam trap for drain discharge。 FEATURESSeries 129YB• Rapid equipment startup with built inbypass system.• Stainless steel body, for a long life expectancyand high level of reliability.• Simplified maintenance through simpledesign, providing high cost-performance.Series 129Y-III/YF• Versatile disc type design.• Stainless steel body for a longer life andgreater reliability.Series 129YH• Wide pressure range (0.03 MPa/4.35 psi to5.0M Pa/725 psi).• Stainless steel body for a longer life andgreater of reliability.• Weather cap offered as standard equipmentfor energy conservation. GENERAL APPLICATIONCleaning and food equipment, steam piping,headers, tracing, high pressure steam main drip。3 TECHNICAL DATA Size: DN 10-25 (NPS ⅜ - 1) Temperature: Up to 450 °C (842 °F) Connection: Socket weld (ASME, JIS)Screwed end (ISO 7-1)Flanged (ASME, JIS, JPE)Pressure: Up to 5 MPa (725 psi) Back pressure: Up to 80% Materials: Stainless steel