JB / T 7230-94 This standard specifies the terms, models and basic parameters, technical requirements, test methods, inspection rules, signs, packaging and storage of the four-way solenoid valve for heat pumps. This standard applies to the valve nominal capacity of not more than 90kW, refrigerant R22 for refrigeration equipment to change the gas refrigerant flow direction, in order to achieve cooling or heating purposes with four-way solenoid valve (hereinafter referred to as the valve).
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