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Water Treatment
Water Treatment Equipment Water Seal Device

The conventional nitrogen sealing system consists of three parts: nitrogen supply device,nitrogen discharge device and safety device.

The integrated multifunctional nitrogen sealing device produced by ZHUOYUE is an innovative product designed to provide nitrogen sealing protection for various storage tanks, containers and other equipment. It integrates nitrogen supply valve, water seal,nitrogen discharge, negative pressure prevention, gas-liquid separator, controller, liquid level monitoring and other functions,effectively preventing the medium from contacting with air, ensuring the quality and safety of stored materials, and is widely used in the safe storage of materials in water treatment, chemical, pharmaceutical, food, petroleum and other industries.

Model list

Technical parameters

1.  Standard specifications (corresponding to the maximum inlet/outlet material volume of the storage tank): 0.25~150m³/h. unit
2.  Nitrogen exhaust start pressure: ≥1.5 kPa
3.  Negative pressure destruction start: ≤-0.8KPa
4.  Water replenishment pressure: 1~6bar
5.  Control power supply: AC220V, 50Hz

model

Corresponding ultrapure water System water output

Size

Functions and technical parameters

DN

A

B

C

D

E

VDF250

0.25~10m3/H

250

DN25-DN40

DN15

DN25

DN15

1. Under normal working conditions, according to the controller, it has the functions of automatically starting and stopping the
nitrogen inlet valve to replenish nitrogen. 2. It also has the functions of nitrogen discharge, water discharge, exhaust,
automatic replenishment of water seal liquid, water saving, negative pressure prevention, independent discharge of gas and water
(it is forbidden to exhaust on the spot to cause suffocation).

VDF300

10~30m3/H

300

DN40~65

DN20

DN25

DN15

VDF400

30~60m3/H

400

DN65~100

DN25

DN50

DN15

VDF500

30~60m3/H

500

DN100~150

DN40

DN65

DN15

VDF600

100~150m3/H

600

DN150~200

DN50

DN80

DN15

Product features

1.  Precise and intelligent control: The use of reliable and stable micro-pressure devices and intelligent control systems can accurately reflect the nitrogen pressure in the storage tank, so that it is always kept within the set micro-positive pressure range, ensuring that the material is not polluted by the outside air under normal operation.
2.  High efficiency and energy saving: The optimized nitrogen supply system automatically starts and stops the nitrogen valve according to the changes in the tank pressure, minimizes nitrogen consumption and reduces operating costs.
3.  Safe and reliable: It has multiple safety protection functions, such as overpressure discharge, underpressure nitrogen replenishment, abnormal negative pressure prevention, independent nitrogen discharge, etc.,and operates stably under various working conditions to ensure the safety of personnel and equipment.
4.  Integrated design: The nitrogen inlet, nitrogen unloading, safety valve, gas-liquid separation, automatic water replenishment and other components are integrated into one, with a compact structure and easy installation, which reduces the workload and time cost of on-site installation and commissioning.
5.  Corrosion resistance and long life: It is made of high-quality corrosion-resistant materials, adapts to various harsh working conditions, has a long service life and low maintenance cost.