Product Description: Differential pressure meter adopts double bellows structure, that is, two bellows are installed in symmetrical positions on both sides of the "H" type bracket. The upper and lower ends of the "work" type bracket are respectively the movable end and the fixed end, and the middle is connected by the spring sheet; The two bellows are in a parallel state, respectively connected with the high and low pressure joint on the case with the catheter; The gear transmission mechanism is directly installed on the fixed end of the bracket, and is connected with the movable end of the bracket through the pull rod; The dial is directly fixed on the gear drive mechanism.

The working principle of the instrument: based on the pressure element using two with the same stiffness of the bellows, so in the same measured medium force to produce the same concentrated force respectively acting on the movable bracket, because the spring on both sides of the torque does not produce disturbance, so the bracket is still in the original position, so the gear transmission mechanism does not act, so the pointer still refers to the zero position.

When applying different pressures (generally higher than the high pressure end of the low pressure end), the two bellows acting on the force on the movable bracket is not equal, so that the corresponding displacement, and drive the gear transmission mechanism to drive and amplify, the pointer deflects to indicate the differential pressure value between the two.
Specification parameter