KGFQ-2 quick opening all-weather breathing valve

KGFQ-2 Quick Open All Weather Breathing Valve Product Overview

The quick opening all-weather breathing valve adopts screw rotation compression, which is convenient and quick to open, and easy to disassemble. It is an improved product of ordinary all-weather breathing valves. Explosion proof breathing valve, with its innovative structure. It is a safety equipment for petrochemical storage tanks, with the advantages of good respiratory performance, light weight, and easy maintenance.

Working principle of all-weather breathing valve

The all-weather breathing valve is installed on the top of the storage tank to solve the problem of positive and negative pressure gas inside the tank, so that the liquid in and out of the tank is not obstructed. When the external liquid is input into the tank, a large amount of gas is exhaled (called positive pressure). When the liquid inside the tank is exported, it is sucked into the tank from the outside air (called negative pressure). If the breathing valve automatically closes when the work stops, it will not leak the liquid and gas inside the tank, which ensures the quality of the liquid inside the tank.

Performance and characteristics of all-weather breathing valve

1. The new all-weather breathing valve housing is made of stainless steel, cast steel, and aluminum alloy, with good corrosion resistance;

2. The valve disc is made of PTFE material, which is resistant to low temperatures and has good anti freezing performance;

3. Simple structure, easy maintenance, safe and convenient;

4. The performance of the new all-weather breathing valve fully complies with the standard SY7511-87 of the Ministry of Petroleum Industry.

Scope of application of all-weather breathing valve

The new all-weather breathing valve is suitable for storing Class A oil products with a flash point below 28 ℃ and Class B oil products with a flash point below 60 ℃, such as gasoline, benzene, benzene, kerosene, light diesel, engine oil, crude oil, and chemical product storage tanks with the same properties.

The all-weather breathing valve can be used in conjunction with ZGB corrugated flame arresters.

Structural diagram of KGFQ-2 quick opening all-weather breathing valve

Technical parameters of all-weather breathing valve

External connection dimensions of all-weather breathing valve

24/7 Breathing Valve and Maintenance

For the safe use of the breathing valve, the corrugated fire-resistant layer should be removed and cleaned regularly within 3-6 months to ensure that each hole on the fire-resistant layer is unobstructed, prevent blockage, and ensure safe and normal use. Regularly check whether the positive and negative valve discs of the ventilation system operate flexibly, and whether the sealing surface of the guide rod and valve disc is damaged. If there is any damage, it should be replaced immediately. When inspecting, maintaining, and reinstalling, it should be ensured that the joint surfaces inside the valve are tightly matched and the valve disc is flexible in lifting and lowering. When a new valve is activated, the shock absorbers between the valve discs should be removed before installation, otherwise the breathing valve will malfunction.

Installation instructions for all-weather breathing valve

1. The breathing valve should be installed at the top high point of the gas source in the storage tank to reduce material evaporation loss and provide a more direct channel to the breathing valve smoothly. For vertical tanks, the breathing valve should be installed as much as possible within the central top plate range of the tank roof. For tanks that require insulation on the tank roof, it can be installed near the ladder platform;

2. When two breathing valves need to be installed, they should be symmetrically arranged with the center of the tank top;

3. If the breathing valve is used on a nitrogen sealed tank, the connection position of the nitrogen supply pipe should be far away from the breathing valve interface and inserted into the storage tank from the top of the tank by about 200mm, so that nitrogen is not directly discharged after entering the tank, achieving the purpose of nitrogen sealing.

Ordering Notice:

Please specify detailed parameters such as product name, nominal diameter, pressure rating, material, flange standard, and operating pressure when placing an order. The above product dimensions are standard universal models. If you need other specifications, non-standard product design drawings and detailed parameters, or if the environment is very important for use and complex, please contact our company for our experts to review and serve you wholeheartedly.

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