query fluiddds {
    heatExchangers {
        heatExchangers {
            areBypassedRestrictions
                calculationMethod
            id
                isLeaf
            name
                parentId
            portSwitchAllowed
                sort
            xpc {
                class
                execution
                    material
                pressure
                    size
                subtype
                    type
            }
        }
    }
}