Maneurop Refrigeration Hermetic Reciprocating Compressor MTZ51HK4AVE

Product description:

Horizontal suction line sections shall have a slope of 0.5% in the direction of refrigerant flow (5/8" per 10 ft of pipe). The cross-section of horizontal suction lines shall be such that the resulting gas velocity is at least 13 ft/s. In
vertical risers, a gas velocity of 26 to 40ft/s is required to ensure proper oil return. A U-trap is required at the foot of each vertical riser. If the riser is higher than 4 m, additional U-traps are required for each additional 4
meters. The length of each U-trap must be as short as possible to avoid the accumulation of excessive quantities of oil.
For compressors mounted in parallel, the common suction riser should be designed as a double riser. Also refer to the News bulletin "Mounting instructions for installation of Maneurop compressors in parallel " and
"Parallel application guidelines".
Gas velocities higher than 40 ft/s will not contribute to significantly better oil return. However they will cause higher noise levels and result in higher suction line pressure drops which will have a negative effect on the system capacity.