1. In the double-seat sealing design, the 3-way ball valve enjoys compact structure,goodly configuration and favorable sealing performance. The valve could make a realization the switching of flow direction of the medium inside the pipeline, furthermore, it also could connectshut-down the two orthogonal passages.(As shown in Flow Graph A) 2.In the 4-seat sealing design, the 3-way ball valve enjoys reasonable, compact structure and goodly configuration. The valve could not only make a realization the switching of flow direction of the medium inside the pipeline, but also connect the 3 passages on another. Meanwhile, the valve also features the capacity of shutting-down one of the 3 passages while connecting the other 2 ones for the flexible control of the convergent flowshunting of the medium in pipelines.(As shown in Flow Graph B)
Remarks: Double-seat configuration design is generally utilized for 3-way ball valve as shown in the 2 operating conditions in Flow Graph A which apply the L-Shaped construction with double-seat(Type Q44).With regard to the 2 conditions of ① and ④ in Flow Graph B, the T-shaped construction with double-seat could also be applied(Type Q45).In the ② and ③ conditions in this graph, the choice of the construction must be limited to T-shaped ones with 4-seat(Type Q45). For other kinds of operating conditions, the construction with 4-seat could also be applied, however, the construction of the relevant valve seats should be referred in advance in the contract for future delivery. For other requirements please refer to the sample of Organizing Method for Types of Ball Valves and fill in corresponding code numbers as required.
Q45F三通球閥主要性能規(guī)范 Main Performance Spcification
公稱壓力 PN(MPa) Nominal diameter
試驗壓力 Test pressure
殼體 Shell
高壓液密封 High-pressure liquid sealing
低壓氣密封 Low-pressure hermetic sealing
1.6
2.4
1.76
0.6
2.5
3.75
2.75
4.0
6.0
4.4
CLASS150
3.O
2.2
適用工況 Applicable Operating Mode
適用介質 Applicable medium
水、油品、氣等非腐蝕介質和酸堿腐蝕介質 Non-corrosion medium such as water, oil products, and gas, etc,and nitric acid corrosion medium.
適用溫度 Applicable temperature
-28-350℃
應用規(guī)范 Applicable specification
連接法蘭 Connecting flange
JB79-59、GB9113、HG20592-97、ANSI B16.5
檢驗試驗 Test and inspection
GB9/T 9092-99、API 598
其余制造規(guī)范均按本廠標準 Other manufacturing standard is according to the standard of our factory.
Q45F三通球閥主要外型與連接尺寸表Form of Main Types and Connecting Dimension