Hanbell RC2-D, Technical Manual

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RC2-D Technical Manual
5.2.4 Horizontal discharge check valve
The horizontal discharge check valve is a standard accessory of RC2 - DP compressor. Considering the
limited installation space, horizontal discharge check valve can replace gravity check valve for RC2 - DP
compressor. The specification and installation diagram of horizontal check valve are as follows:
：
Specification
Dimension Unit:mm
Max working pressure
φA B φC φD Nut
2” 90 85 102 91 16*140
28 Bar
2-1/2” 110 97 122 111 16*150
3” 120 109 138 121 20*170
4” 145 125 163 146 20*190
5” 175 150 203 176 M20*200
5.2.5 Gravity check valve
Gravity check valve can automatically prevent the backflow of fluid. The valve disc opens under the
action of fluid pressure, and the fluid flows from the inlet side to the outlet side. When the pressure at
the inlet side is lower than that at the outlet side, the valve disc will automatically close under the action
of fluid pressure difference, gravity and other factors to prevent fluid backflow.