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Features
1. In the double-seat sealing design, the 3-way ball valves enjoys compact structure,well 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 connect or shut-down the two orthogonal passages.(As shown in Flow Graph A)
2.In the 4-seat sealing design, the 3-way ball valves enjoys reasonable, compact structure and well 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 flow or shunting of the medium in pipelines.(As shown in Flow Graph B)
Main Patrs and Materials
Accessory name |
Material |
GB |
ASTM |
Body,bonnet |
WCB |
A216-WCB |
Sealing Ring |
PTFE 、 Counterpoint polypheny1 |
PTFE 、 Counterpoint polypheny1 |
Ball |
1Cr18Ni9Ti |
SS 304 |
Seat 、 Stem |
2Cr13 |
A246-416 |
Dual-head double-screw bolt |
35CrMoA |
A193-B7 |
Remarks:
Double-seat configuration design is generally utilized for 3-way ball valves 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.
Main Performance Spcification
Nominal diameter |
Test pressure |
Shell |
High-pressure liquid sealing |
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 |
Applicable
Operating
Mode |
Applicable medium |
Non-corrosion medium such as water, oil products,
and gas, etc,and nitric acid corrosion medium. |
Applicable temperature |
-28-350℃ |
Applicable
specification |
Connecting flange |
JB79-59 、 GB9113 、 HG20592-97 、 ANSI B16.5 |
Test and inspection |
GB9/T 9092-99 、 API 598 |
Other manufacturing standard is according to the standard of our factory. |
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