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Pressure Vacuum Relief Valve(NK-BV15 Series)

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[Basic Infomation]
[Additional Information]
  • MaterialAvailable in Aluminum, Carbon Steel, Stainless Steel.
  • Payment TermsT/T
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[NeoTech Korea]

  • South Korea South Korea
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Product Detail Information



Pressure / Vacuum Relief Valve (MODEL:NK-BV15W,NK-BV15S)

INTRODUCTION

Pressure / Vacuum relief valves are used on liquid storage tanks and other process vessels or systems to
prevent structural damage due to excess internal vacuum.
Storage tanks are pressurized when liquid is pumped in, compressing the existing vapor or when rising
temperatures cause increased evaporation or expansion of existing vapor.
Conversely, a vacuum condition may be created when pumping out or due to falling
temperature. To prevent tank damage, vapor must be allowed into or out of the tank at
specified vacuum condition. The volume rate of venting depends upon the tank size,
volatility of the tank contents, the pumping rates and the temperature.
 

 

DESIGN AND FUNCTION

Tank protection equipment typically includes an operating valve, which is designed to
provide pressure/vacuum relief under normal pump in/out and thermal breathing
conditions.

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Pressure Relief
: As the pressure in the storage tank increases, the vacuum pallet is held shut.
When the set pressure is reached, the pressure pallet lifts and relieves to atmosphere (or
to a header if it a pipe away valve).

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Vacuum Relief
: As a vacuum is drawn in the storage tank (for example, when fluid is being pumped out),
the pressure pallet is held shut by atmospheric pressure. When the vacuum setting is
reached, the pallet lifts and air is drawn in the storage tank from the atmosphere.

 

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DIMENSION TABLE 

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Product Detail Image

Pressure Vacuum Relief Valve_NB15_WB15_

Pressure Vacuum Relief Valve_NB15_WB15_

Pressure Vacuum Relief Valve_NB15_WB15_