Model No: PVOPSP / PVOPSPV
ERARDO make Spring Loaded Breather Valve / Pressure Vacuum Relief Valve is Spring Loaded type (Pressure Side) and open to atmosphere. This model used where Set Pressure requirement is higher and not accommodate by Dead Weight .
ERARDO make Spring Loaded Breather Valve / Pressure Vacuum Relief Valve is Spring Loaded type (Pressure Side & Vacuum) and open to atmosphere. This model used where Set Pressure & Vacuum requirement is higher and not accommodate by Dead Weight
| Specification | Details |
| Manufacturing Standard | API 2000 7th Edition |
| Testing Standard | API 2000 7th Edition, API 2521 |
| Sizes | 1 inch to 24 inch |
| Body Construction | Carbon Steel, SS 304, SS 316, Aluminium |
| End Connection | ANSI 150#, ANSI 300#, ANSI 600# |
Reliable Tank Protection SystemThis pressure/vacuum relief valve effectively prevents overpressure and vacuum conditions in atmospheric storage tanks. Its spring-loaded, bidirectional structure provides rapid response to pressure changes, while 100% factory testing ensures dependable, leak-free operation. This makes it ideal for process integrity and environmental safety.
Customizable and Versatile DesignManufactured with a choice of robust materials and advanced sealing options, the valve is customizable for various process needs. Pressure settings and connection types are selectable, suiting a range of tank and vessel applications. Optional features include weather hoods and inspection ports for enhanced usability.
FAQ's of Spring Loaded Breather valve (Open to Atmosphere):
Q: How does a spring loaded breather valve operate in an atmospheric tank?
A: This valve is spring actuated and opens or closes according to changes in internal tank pressure. When the tank's internal pressure exceeds the set limit, the spring allows the disc to lift, venting excess air, gas, or vapour to the atmosphere, thus maintaining safe pressure levels without requiring external power.
Q: What are the recommended installation steps for this breather valve?
A: Install the valve vertically on the tank roof as specified. Use appropriate flanged or screwed connections (ANSI/DIN/JIS) according to the tank design. Ensure the sealing surface is clean, and fasten all bolts uniformly. Accessories like weather hoods or flame arresters can be included as required.
Q: When should the inspection port be requested, and how is maintenance handled?
A: Request the inspection port if periodic internal inspections or maintenance are anticipated, especially in critical service conditions. Routine maintenance involves checking the seating, spring condition, and disc alignment, all facilitated by the compact, bolted bonnet design for easy access.
Q: Where can this breather valve be used most effectively?
A: It is best suited for use on storage tanks, vessels, and industrial process systems handling air, inert gases, or vapours, particularly where atmospheric venting is needed. Typical applications include the petrochemical, chemical, and pharmaceutical industries.
Q: What benefits does the spring loaded breather valve offer over other pressure relief options?
A: Notable advantages include precise control of pressure or vacuum relief due to the direct spring mechanism, high sensitivity to pressure changes, robust construction (aluminium, CS, or SS), multiple sealing options, and no need for electricity, making it ideal for remote or hazardous locations.
Q: How is the set pressure determined and can it be customized?
A: The set pressure ranges from 10 mbar to 700 mbar and is customizable according to process requirements. Specify desired pressure when ordering; the valve is factory set and 100% tested to ensure compliance with the requested setting and seat leakage standards (API Std 527).
