Direct Flow Check Valve
                    
                       - Zhejiang Dongyi Electromechanical Technology Co.,Ltd
 
                        - product brand:Donevf 
 
                        - رقم الكشك:E1G44
 
                        - product specification:DN20-DN125
 
                         - product category:Assembly Supplies for Refrigeration and Air Conditioning-Valves-
 
                        - product introduction:Technical Parameters 
1.Max. Working Pressure: 4.0Mpa 
2.Test Pressure: 6.0Mpa 
3.Non-return Seal Test Pressure: 0.2Mpa 
4.Opening Pressure: 0.01 Mpa 
5.Suitable Temperature Range: -46°C ~+150°C  
6. Suitable Medium: R22, R502, R507, R407C、R404A, R134a, R410A、R717, etc. refrigerants and other refrigeration oils