Ventilation Tank Device
WH-5101A Regulating valve, also known as control valve, receives the pressure of regulating control unit and uses power operation to change the final control elements of medium flow, pressure, temperature, liquid level and other process parameters. Regulating valve is an indispensable link
- Product Introduction
Ventilation Tank Device
As a general rule, tanks operate at atmospheric pressure or very low pressure. A fundamental analysis related to protection and safety in tank design is element design for overpressure and vacuum. The most commonly used protective elements in tanks are vents, and the use of additional pressure relief valves or frangible joints on the tank top.
Dimensions of vents in tanks are based on API 2000 Standard: "Vented Atmospheric and Low Pressure Tanks". This standard covers the operating requirements for tanks with pressures up to 15 psig.
For analysis, a range of values for temperature, latitude, liquid flow, temperature changes, possible fire scenarios, etc. will be required.
The main reasons why overpressure or vacuum may develop in a tank are as follows:
Fill and/or empty the tank.
Changes in pressure and temperature in the environment.
The fuel tank is exposed to fire, which increases the pressure inside the fuel tank.
Malfunction or blockage during operation.
When some of the above occur, decompression or vacuum suction will be required and must be calculated using the requirements indicated in the API 2000 standard.
The following should be considered when calculating tank vent capacity:
Tank suction due to liquid leakage/drainage (volume displacement, liquid transfer).
Tank suction due to vapor condensation (thermal effect) in the tank space. Decreased ambient temperature - thermal respiration.
Tank exhalation due to liquid entering the tank (volume displacement, liquid transfer).
The tank exhales due to evaporation of the liquid in the tank space (thermal effect). Elevated ambient temperature - hot exhalation
Emergency exhaust due to fire.

| Size | D1 | D2 | D3 | D4 | H |
| 1.5" | Φ25 | Φ50.5 | Φ90 | Φ60 | 300 |
Application Scene

FAQ
Shipping Method:
For small qtty will be shipped by courier door to door e.g: DHL, UPS, EMS, FEDEX IE, FEDEX IP, TNT ( shipping days 3-4 days)
For bigger qtty will be shipped by sea shipment to your pointed nearest seaport ( shipping days 1 month)
Optional paymet ways:
TT wire/bank transfer or PayPal or Western Union
Delivery time:
Small order: 3-5 days
Bigger order: 7-15 days.
Q: do you test each valve?
Answer: each test, we have a test standard, not to meet our requirements, will not be shipped.
Q: are your materials up to hygiene standards?
Answer: the sealing ring is made of EPDN and other materials are sus304.
Q: how many years has your factory been producing valves?
A;We are specialized in making valves on beer cans for more than 10 years.
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