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New PP anticorrosive breathing valve

  • HXF-PP Type: HXF-PP
  • 200 Price: 200

PP breathing valve is mainly used in atmospheric and low pressure storage tanks (such as HCL / HNO3 storage tanks) that contain certain volatile chemical substances that are not allowed to leak. It is fixed on the top of the storage tank as a ventilation device. In order to ensure that the pressure in the tank is in a normal state, the storage tank is prevented from being damaged by the occurrence of positive and negative pressure in the tank, and the volatilization loss of the liquid in the tank can be reduced. New PP anticorrosive breathing valve

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Product Overview
PP breathing valve is mainly used in atmospheric and low pressure storage tanks (such as HCL / HNO3 storage tanks) that contain certain volatile chemical substances that are not allowed to leak. It is fixed on the top of the storage tank as a ventilation device. In order to ensure that the pressure in the tank is in a normal state, the storage tank is prevented from being damaged by the occurrence of positive and negative pressure in the tank, and the volatilization loss of the liquid in the tank can be reduced. New PP anticorrosive breathing valve

Comprehensive parameters

a. Suitable for various petroleum, chemical, pharmaceutical, energy, special liquid or gas materials.
b. Operating pressure:
A, -295Pa (-30mmH2O) / + 355Pa (+ 36mmH2O)
B, -295Pa (-30mmH2O) / + 980Pa (+ 100mmH2O)
C, -295Pa (-30mmH2O) / + 1750Pa (+ 180mmH2O)
D, -295Pa (-30mmH2O) / + 9800Pa (+ 10000mmH2O)
c. Explosion-proof level: BS5501: IIA, IIB, IIC.
d. Shell material: PP, PPR, PPH.
e. Valve disc and valve seat material: PP, PPR.
f. Seal material: PTFE.
g. Flange standards: If customers need to use GB, SH, HGJ, JB, ANSI, JIS and other standards or change the pressure level, please specify in the order contract. Anticorrosive acid resistant plastic breathing valve PP hydrochloric acid tank breathing valve sulfuric acid tank PP breathing valve
h. Manufacturing and testing standards: Manufacture and acceptance according to ( Petroleum Storage Tank Breathing Valve ) SY7511-87, (Petroleum Tank Flame Retardant Performance and Test Method) GB5908-86, or customer specified standards. New PP anticorrosive breathing valve

Third, installation and maintenance

1. The PP breathing valve is installed at the highest point of the storage tank, in order to reduce the evaporation loss of the material and maintain the air pressure balance inside and outside the storage tank. For general vertical oil tanks, the fire-blocking breathing valve is installed in the center of the tank top plate; for storage tanks that require a heat insulation layer on the tank top, the fire-blocking breathing valve can be installed near the ladder platform.
2. When the PP breathing valve is delivered from our company, the flange sealing surface uses a plastic protective cover to avoid damage to the flange sealing surface during transportation. When the goods are delivered to the site for installation, be sure to remove the flange protective cover and install it vertically. On top of storage tank. The fire-blocking breathing valve cannot be placed horizontally or upside down. If two fire-blocking breathing valves need to be installed on the top of the storage tank, the fire-blocking breathing valve and the center of the tank top should be installed symmetrically.
3. The breathing valve is installed on the storage tank and generally used for 1-3 months. It is necessary to regularly check whether the positive and negative pressure valve discs of the breathing valve work flexibly. When the breathing valve is working normally, it will emit "hiss-hiss-hiss" pressure relief. The sound of exhaust, otherwise, you need to open the valve cover on the top of the breathing valve and check whether the valve plate of the breathing valve has a "chuck" phenomenon. Whether there is dirt on the guide rod. If there is any dirt in time, ensure that the guide rod can run freely. There is no wear on the sealing surface of the valve seat. If it is worn, it should be replaced immediately to ensure the normal and safe operation of the breathing valve. PP Breathing Valve-PP Breathing Valve With Takeover-PP Single Suction Valve-PP Single Call Valve
4. The positive and negative pressure valve discs of the PP breathing valve are continuously changed according to the rise and fall of the pressure in the tank, and move up and down. After the fire-resistance breathing valve is used for three years, generally the valve disc, guide rod and sealing surface of the fire-resistance breathing valve need to be replaced to ensure the normal operation of the fire-resistance breathing valve and maintain the safe operation of the storage tank. PP Breathing Valve-PP Breathing Valve With Takeover-PP Single Suction Valve-PP Single Call Valve
Please confirm the following parameters when ordering: 1. Caliber 2. Material 3. Operating pressure 4. Medium 5. Flange standard 6. Quantity in order to provide accurate and qualified products.

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Beijing Jingchen Times Petrochemical Equipment Co., Ltd. specializes in providing new PP anticorrosive breathing valve, glass fiber reinforced plastic tank dedicated breathing valve and other information. Welcome to inquire!
地址:北京市朝阳区立清路7号 Total visits: 92631 Address: No. 7 Liqing Road, Chaoyang District, Beijing
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