The invention relates to a four-way industrial
thermostat unit with hydraulic bypasses with
piston type
pressure release valves. The four-way industrial
thermostat unit with the hydraulic bypasses with the
piston type
pressure release valves is characterized by comprising a hydraulic oil conveying pipeline, wherein a hydraulic oil conveying pipeline conveying pump, a heat radiator and a heat exchange device are sequentially arranged between a hydraulic oil inlet and a hydraulic oil outlet on the hydraulic oil conveying pipeline; a heat exchange pipeline is connected between an upper heat exchange connector and a lower heat exchange connector of the heat exchange device; a gas-liquid separator, a compressor, a condenser, a heat exchange pipeline
bypass valve, a four-way valve, a first one-way valve, a first reservoir, a first dry filter, a first heat exchange pipeline
electromagnetic valve, a first throttling device, a second one-way valve, a second reservoir, a second dry filter, a second heat exchange pipeline
electromagnetic valve and a second throttling device are arranged on the heat exchange pipeline; and the
piston type
pressure release valves are arranged on oil circuits ontwo ends of the heat radiator in parallel. The four-way industrial
thermostat unit with the hydraulic bypasses with the piston type pressure release valves provided by the invention has the advantagesof high reliability, difficulty in damage, and capability of ensuring stable operation of a
system.