The D520/7DZ dual contact differential pressure controller adopts a bellows sensor and can be used for neutral gas and liquid media. The differential pressure setting of the controller is adjustable, with a range of 0.02-1.6 Mpa and a working pressure range of 0.05-2.5 Mpa.

technical indicators
Can be used for media such as air, gas, water, steam, refrigerant, oil, etc.
Working viscosity: ＜ 1 × 10-3m2/s
Switching element: Micro switch
Shell protection level: IP54
Environmental temperature: -30~50 ℃
Medium temperature: 0-120 ℃
Installation position: The pressure interface is vertically downward (allowing a tilt of 15 °)
Anti vibration performance: Max: 20m/s2
Repetitive error: ≤ 1%
Synchronization error: ≤ 0.5% (referring to the synchronization error of the lower switching value * 2)
Contact capacity: AC 220V 6A (resistive) 600VA

D520/7DZ Dual Contact Differential Pressure Controller Appearance and Installation Dimensions