Shanghai Huanyao Valve Co., Ltd.

The ventilation device installed on the fixed roof tank of the - type fire breathing valve plays the role of reducing the evaporation loss of oil, controlling the tank pressure and the introduction of external flames. The fire-proof type has the characteristics of large ventilation, small leakage and corrosion resistance, and has an electrostatic grounding wire to maintain the same potential between the valve and the tank. -The breathing valve has anti-freeze performance and is suitable for cold areas. The valve has the characteristics of large ventilation volume, small leakage volume and corrosion resistance. It also has an electrostatic grounding wire to maintain the same potential between the valve and the tank. The valve has anti-freeze properties and is suitable for cold areas.
Part materials:
<= dd Valve body material
,,, Aluminum alloy
Positive pressure valve disc material
,, Aluminum alloy
Negative pressure Valve disc material
,, PTFE
Ambient temperature ℃
-~


Operating pressure:
<= dd grade
Operating Pressure
Level
+ (mm water column)
- (mm water column)
Level
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- (mm water column)< br/> Level
(mm water column)
- (mm water column)
Note: The operating pressure can be customized as positive and negative pressure according to customer needs.
<= d%> Main appearance and flange connection dimensions
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% => Drawing number

% => Weight
(
unit)

Installation size (mm)

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Note: The connecting flange complies with the regulations of "Cast Iron Flange"

Shanghai Huanyao Since its establishment, the Valve Co., Ltd. has mainly sold various flow meters, liquid level meters, flow valves, safety valves, solenoid valves, regulating valves, gate valves, ball valves, needle valves, globe valves, and check valves that meet the standards of /, etc. , butterfly valves, flame arresters, exhaust valves, filters, traps and other marine accessories set meter valves. Can be customized according to various user requirements in accordance with domestic and foreign standards such as national standard, American standard, Japanese standard, German standard D, etc. Its products all meet the testing standards of relevant municipal, provincial and national departments.
Huanyao Valve adheres to the purpose of sourcing quality, integrity and creating value. Its products are now selling well all over the country and have gradually developed overseas markets. And win the trust of customers with excellent product performance, reasonable price positioning and high-quality customer service.
Huanyao Valve believes that perfection begins with the pursuit of excellence! We have a strong technical team and constantly recruit high-end technical talents from the field of valves. All products use 3D computer-aided design to achieve technological innovation and develop products that meet the market to seize market opportunities. Forge ahead, work hard, pioneer, persist in working hard, continue to improve, and just want to do better. The company implements advanced Six Sigma management methods and establishes a strict quality management system to continuously pursue zero defects. The strong production capacity allows Huanyao Valve to provide users with the products they need in the shortest possible time and provide timely and efficient after-sales service to maximize user satisfaction.
Shanghai Huanyao Valve Co., Ltd. adheres to the business philosophy of honesty, quality first, and reasonable price, and adheres to the principle of customer first to provide quality services to our customers. We sincerely welcome friends from all walks of life to negotiate business!