Abstract: A compressor for a motor-compressor set, comprising, on a rotating shaft, a balancing piston, a set of bladed wheels, a rear cavity of the piston adjacent to the balancing piston on a side opposite to the set of bladed wheels, a regulation valve suitable for coupling the rear cavity to the input of the set of bladed wheels, a suction pressure chamber coupled to the input of the set of bladed wheels, the rear cavity being arranged between the balancing piston and the suction pressure chamber. The compressor comprises a discharge pressure chamber arranged between the rear cavity of the piston and the suction pressure chamber, the discharge pressure chamber being coupled via a discharge line to a discharge area between the set of bladed wheels and the balancing piston.

Abstract: A compressor for a motor-compressor set, comprising, on a rotating shaft, a balancing piston, a set of bladed wheels, a rear cavity of the piston adjacent to the balancing piston on a side opposite to the set of bladed wheels, a regulation valve suitable for coupling the rear cavity to the input of the set of bladed wheels, a suction pressure chamber coupled to the input of the set of bladed wheels, the rear cavity being arranged between the balancing piston and the suction pressure chamber. The compressor comprises a discharge pressure chamber arranged between the rear cavity of the piston and the suction pressure chamber, the discharge pressure chamber being coupled via a discharge line to a discharge area between the set of bladed wheels and the balancing piston.

Abstract: A connector assembly is provided that includes a connector body disposed partially or completely in a pressure vessel configured for providing electrical conductive paths into and out from the pressure vessel. The connector assembly also includes a plurality of elongated conductive pins disposed within the connector body, wherein each of the plurality of elongated conductive pins comprises a high pressure end and a low pressure end. Further, the connector assembly includes a polymeric resin disposed within the connector body to form a molded body surrounding the high pressure ends of the plurality of elongated conductive pins for providing liquid-tight and gas-tight sealing between the polymeric resin and the plurality of elongated conductive pins and between the polymeric resin and the connector body, wherein the molded body comprises a plurality of fillets around all edges of the polymeric resin.