Model No: PVOPD
ERARDO make Dead Weight Breather Valve / Pressure Vacuum Relief Valve is dead weight loaded type and open to atmosphere.
| 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# |
Versatile Applications Across IndustriesDesigned to safeguard tanks and vessels, the Dead Weight Breather Valve is suitable for use in oil, chemical, and storage facilities that operate under low pressure. Its robust structure and flexible mounting orientation offer seamless integration with various industrial setups, making it a preferred choice for both new installations and replacements.
Robust and Leak-Proof ConstructionManufactured with high-quality materials such as aluminium, cast iron, carbon steel, or stainless steel (SS304/316), the valve offers excellent corrosion resistance. Its leak-proof design, epoxy coated or polished surface, and maintenance-free mechanism ensure prolonged service life even in demanding environments.
Reliable and Customizable OperationThe valve's automatic operation by deadweight enables accurate pressure settings, with adjustable weights allowing customization for specific system needs. Factory testing ensures consistent performance, and optional accessories like flame arrester and bird screen further enhance operational safety and flexibility.
FAQ's of Dead Weight Breather Valve (Open to Atmosphere):
Q: How does the Dead Weight Breather Valve operate in storage tanks?
A: The valve functions automatically by opening or closing based on the pressure inside the tank, utilizing adjustable deadweights to set the desired opening pressure. It allows excess air or vapor to escape directly to the atmosphere when necessary, preventing tank over- or under-pressure conditions.
Q: What benefits does epoxy coating or polished finish provide?
A: Both finishes enhance the valve's durability and resistance to corrosive environments. Epoxy coatings protect metal parts against chemical exposure and weathering, while polished surfaces facilitate easy cleaning and further reduce corrosion risks.
Q: When should the optional bird screen or flame arrester be used?
A: The bird screen is recommended in locations prone to insect or animal ingress, while the flame arrester provides added safety in environments where ignition sources are present or volatile vapors require extra protection against flame transmission.
Q: Where can this breather valve be installed?
A: It is designed for vertical installation on tank nozzles and is suitable for atmospheric storage tanks, low-pressure vessels, and similar industrial systems handling air or vapors.
Q: What is the process for adjusting the set pressure?
A: Set pressure adjustment is achieved by changing the deadweights on the valve mechanism. This allows precise tuning within the standard range of 10 mmwg to 700 mmwg to meet specific system requirements.
Q: How does the valve ensure leak-proof and maintenance-free performance?
A: The robust construction, high-quality seals (soft or metallic), and corrosion-resistant disc ensure a reliable, leak-proof operation. Factory testing confirms its integrity, and the simple deadweight-operated design minimizes maintenance needs.
Q: What are the available material and size options for this valve?
A: The valve can be crafted from aluminium, cast iron, carbon steel, or stainless steel (SS304/316), with sizes ranging from 2 to 8 inches and custom sizes or flow capacities available to fit unique application demands.
