◆ Nitrogen Relief Valve (Nitrogen Relief Device) Overview:
Nitrogen Leak DeviceAn energy-free seal device powered by the energy of the adjusted medium itself, automatically controlling the flow rate of the valve medium to maintain a constant pressure before the valve. Now widely used in seal systems for storage tanks, heat transfer oil tanks, ultra-pure water, and more.
The nitrogen venting device for the nitrogen sealing valve's pressure relief section: When the tank's pressure rises to the set value, the nitrogen supply valve closes and the nitrogen vent valve opens, quickly releasing the excess pressure inside the tank.
◆ Nitrogen Relief Valve (Nitrogen Relief Device) Parameter Description:
Valve internals features: 1. Pressure balance structure with high sensitivity
2. Compact structure, reliable performance, maintenance-free
3. Standard modular design adopted
Valve Body Type: Direct-Through, Four-Way
Valve Cover Type: Standard Type
Flow characteristics: Quick opening
Bore Range: DN15-300 (1/2" - 12")
Pressure Class: PN1.6, 2.5, 4.0, 6.4 MPa (ANSI 150, 300 lb)
Leak Class: ASME B16.104 VI (Soft Seal)
ASME B16.104 IV (Hard Seal)
Pipe connection methods: Flanged, Welded, Threaded
Setpoint Deviation: ±8%
Temperature Range: -30° to 350°
Actuator Type: Film Actuator (Self-contained)
Piston-type Actuating Mechanism (Self-Operating)
◆Nitrogen Relief Valve (Nitrogen Relief Device)Working Principle:
When the liquid outlet valve of the tank is opened and the user is discharging the material, the liquid level drops, the volume of the gas phase increases, the nitrogen pressure inside the tank decreases, the nitrogen supply valve opens, and nitrogen is injected into the tank. As the tank pressure rises, the nitrogen supply valve closes automatically when the tank pressure reaches the set pressure of the nitrogen supply valve.
When the liquid valve of the tank is opened and material is added to the tank, the liquid level rises, the volume of the gas phase decreases, and the pressure increases. Once the pressure exceeds the set value of the nitrogen vent valve, the valve opens to release nitrogen to the outside, reducing the nitrogen pressure inside the tank. The nitrogen vent valve automatically closes when the pressure drops to the set value.
