Gree A Series Service Manual page 69

A Series Modular-type Air-cooled (Heat Pump) Chiller
(3)Ball Valve: it is mainly used to cut off or distribute the tube flow or change its direction.
(4)Butterfly Valve: it is widely applicable to all kinds of fluids under 2.0Mpa and 200℃.
(5)Plug Valve: it is mainly used to cut off or distribute the tube flow or change its direction.
(6)Check Valve: it mainly used to stop the fluid flow back.
(7)Balance Valve: it is capable of controlling the flow rate and is mainly used to balance the
hydraulic pressure of the pipeline system.
(8)Selection of Valves
No
Item
Butterfly valves for the inlet and outlet of the chilled water and cooling water
1
tubes.
Butterfly valves for the water pump inlet; check and butterfly valves for the
Design
2
water pump outlet.
By-pass valves between the water header and the distributor.
3
Selection Principle
64