Susin I-Tork India [P] Ltd. Offers Pneumatic Positioners with Built-in Pressure Regulator, IPC Series. Susin I-Tork India [P] Ltd. Is an ISO 9001:2000 certified high precision component manufacturing company. The Pneumatic Positioners with Built-in Pressure Regulator ensure precise control performance and good dynamic response. It can be installed. The Built-in Pressure Regulator reduces variations in supply air pressure.