A flowswitch for installing in piping, comprising: a flowswitch base having an inner cavity; a pivot rod being arranged for rotating in the flowswitch base; a paddle arm being coupled to the pivot rod inside the inner cavity, for moving in response to fluid flowing in the piping and rotating the pivot rod; an actuating arm being attached to the pivot rod and configured for actuating a switch when the pivot rod rotates; and lubricating O-rings being arranged in relation to the pivot rod for providing a respective seal between fluid being sensed and the outside environment and acting as a bearing on which the pivot rod rotates when the paddle arm moves, characterized in that the pivot rod is configured with a first pair of machined or formed O-ring grooves separated by a first machined or formed flange, and also configured with a second pair of machined or formed 0-ring grooves separated by a second machined or formed flange, wherein a first pair of lubricating O-rings is respectively arranged in the first pair of O-ring grooves and separated by the first flange, and a second pair of lubricating O-rings is respectively arranged in the second pair of O-ring grooves and separated by the second flange, each of the first O-ring grooves and the first flange acting to hold each of the first pair of lubricating O-rings in place on the pivot rod in response to pressurized fluid flowing in the piping, each of the second O-ring grooves and the second flange acting to hold each of the second pair of lubricating O-rings in place on the pivot rod in response to pressurized fluid flowing in the piping, so that the first pair of lubricating O-rings and the second pair of lubricating O-rings provide a respective seal between fluid being sensed and the outside environment and acting as a bearing on which the pivot rod rotates when the paddle arm moves. a flowswitch base having an inner cavity; a pivot rod being arranged for rotating in the flowswitch base; a paddle arm being coupled to the pivot rod inside the inner cavity, for moving in response to fluid flowing in the piping and rotating the pivot rod; an actuating arm being attached to the pivot rod and configured for actuating a switch when the pivot rod rotates; and lubricating O-rings being arranged in relation to the pivot rod for providing a respective seal between fluid being sensed and the outside environment and acting as a bearing on which the pivot rod rotates when the paddle arm moves, characterized in that the pivot rod is configured with a first pair of machined or formed O-ring grooves separated by a first machined or formed flange, and also configured with a second pair of machined or formed 0-ring grooves separated by a second machined or formed flange, wherein a first pair of lubricating O-rings is respectively arranged in the first pair of O-ring grooves and separated by the first flange, and a second pair of lubricating O-rings is respectively arranged in the second pair of O-ring grooves and separated by the second flange, each of the first O-ring grooves and the first flange acting to hold each of the first pair of lubricating O-rings in place on the pivot rod in response to pressurized fluid flowing in the piping, each of the second O-ring grooves and the second flange acting to hold each of the second pair of lubricating O-rings in place on the pivot rod in response to pressurized fluid flowing in the piping, so that the first pair of lubricating O-rings and the second pair of lubricating O-rings provide a respective seal between fluid being sensed and the outside environment and acting as a bearing on which the pivot rod rotates when the paddle arm moves.