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Breather Valve
Breather Valve
Breather Valve

Stanless Steel Tank Air Vent PV Oil Storage Water Breather Valve

JN-XHVSQ-23 1001-1
Stainless Steel Tank Air Vent PV Oil Storage Water Breather Valve. Size: DN25–DN150. Grade: SS304/SS316L. Standard: DIN, SMS, ISO, 3A. Working pressure: 0.05–0.6 MPa. Test pressure: 0.9 MPa. Temperature range: -20°C to 150°C. PTFE seals for chemicals; Viton seals for oil and high-temperature applications. Suitable for hygienic storage tanks.
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Stanless Steel Tank Air Vent PV Oil Storage Water Breather Valve
 
TheStainless Steel Tank Air Vent PV Oil Storage Water Breather Valve is apressure-vacuum (PV) regulating Water Valvedesigned for tank ventilation systems. It is installed on the top vent nozzle of storage tanks or terminal vent pipelines, where it controls air exchange during filling and emptying operations. At this position, it helps maintain internal tank pressure balance, prevents vacuum collapse or over-pressure damage, and reduces contamination risks from external air. Common types includepressure relief valves,vacuum relief valves,combined PV breather valves, andflame-arrester breather valves, each suited for oil, fuel, water, chemical, and hygienic liquid storage environments requiring reliable pressure control.
 

TheStainless Steel Tank Air Valve differs from a standard ball valve because it providesautomatic pressure-vacuum regulation for tank breathing, while ball valves mainly offer manual flow isolation in pipelines. Breather valves protect tanks from over-pressure, vacuum damage, and contamination rather than controlling liquid transfer. Compared with other suppliers, our valves featureprecision sanitary polishing,accurate pressure calibration,high-quality PTFE/Viton sealing options, and robust stainless steel construction,deliveringmore stable breathing performance,improved corrosion resistance,longer service life, and higher safety reliability in oil, fuel, water, and hygienic storage systems.

 

Accessories

 Component & Material Table
  • Valve Body – SS304 (standard), SS316L optional for corrosion resistance.
  • Valve Disc / Core – SS304 or PTFE-coated stainless steel for precise sealing.
  • Spring Assembly – SS304/SS316 calibrated pressure control spring.
  • Seal Ring – PTFE, Viton (FKM), EPDM, Silicone optional.
  • Valve Cover / Hood – SS304 sanitary polished protection structure.
  • Connection End – SS304 sanitary clamp, welded, threaded, or flange.
  • Filter Screen (optional) – SS304 mesh for dust prevention.
  • Protective Cap / Flame Arrester (optional) – SS304 safety accessory.
Product Parameter Details
  • Material: SS304 standard construction; SS316L upgrade available; PTFE/Viton sealing materials for chemical and high-temperature resistance.
  • Structural Design: Pressure-vacuum integrated PV breathing structure; spring-loaded automatic opening; optional flame arrester, anti-splash cover, or internal filter.
  • Pressure Rating: Working pressure typically 0.05–0.6 MPa; adjustable breathing set pressure; test pressure up to 0.9 MPa depending on size.
  • Temperature Range: PTFE seals -20°C to 150°C; Viton seals -10°C to 200°C; suitable for oil, fuel, water, and hygienic liquid tanks.
  • Functional Performance: Automatic tank breathing, pressure relief, vacuum protection, contamination prevention, stabilization of tank internal pressure.
  • Grade Classification: Sanitary grade, food grade, pharmaceutical grade, and chemical industry grade depending on surface finish and sealing materials.
  • Standards Compatibility: DIN, SMS, ISO, 3A, IDF hygienic standards; ANSI/ASME flange options for industrial applications.
  • Certification / Compliance Level: Hygienic surface finish Ra≤0.8 μm; food-contact compliant materials; factory pressure calibration and safety testing.
  • Installation Direction: Vertical installation on tank top preferred; horizontal vent line installation possible when supported by internal spring design.
  • Customization Options: Size DN25–DN150; adjustable pressure/vacuum settings; sealing material options; connection types; OEM production and sample customization available.
Stanless Steel Tank Air Vent PV Oil Storage Water Breather Valve
 
Feature (F)、Advantage (A)、Benefit (B)
  1. Raw Material:
  • F: SS304 precision-forged body, CNC machining, full sanitary polishing, PTFE/Viton sealing system, calibrated stainless steel valve core.
  • A: Improves corrosion resistance, sealing reliability, and hygienic performance while reducing leakage and contamination risk.
  • B: Customers gain longer service life, stable tank protection, and reduced maintenance and replacement costs.
  1. Processing Technology:
  • F:Integratedpressure-vacuum (PV) breathing structure with precision spring-loaded valve disc and balanced airflow channel design.
  • A: Enhances pressure regulation accuracy, prevents tank deformation, improves response speed during filling and emptying.
  • B: Users avoid equipment damage, reduce downtime risk, and maintain consistent and safe storage operations.
  1. Structure Feature:
  • F:Full welding sanitary construction with smooth internal surface Ra≤0.8 μm and optional stainless steel filter screen.
  • A: Reduces residue accumulation, strengthens contamination control, and improves cleanability in hygienic environments.
  • B: Customers achieve higher product purity, simplified cleaning procedures, and compliance with sanitary industry standards.
  1. Core Accessory Feature:
  • F: Modular internal components including replaceable springs, valve discs, and sanitary clamp connections for quick disassembly.
  • A: Simplifies maintenance, reduces repair time, enhances operational flexibility, and extends valve lifespan.
  • B: Users minimize production interruptions, lower maintenance labor costs, and maintain continuous plant operation.
  1. Seal Ring Feature:
  • F: Optional flame arrester, anti-splash cap, adjustable pressure settings, and multi-standard DIN/ISO/3A/ANSI connections.
  • A: Improves safety performance, increases installation compatibility, and adapts to oil, fuel, water, and hygienic storage systems.
  • B: Customers benefit from flexible customization, safer tank ventilation, easier system integration, and long-term operational reliability.
 
Stanless Steel Tank Air Vent PV Oil Storage Water Breather Valve
 
Interface Connection Types:Sanitary clamp (Tri-clamp), welded end, threaded connection, DIN/SMS/ISO hygienic fittings, ANSI/ASME flange connections for industrial tank vents.
Manufacturing & Processing Methods:CNC precision machining, laser cutting, sheet metal bending for covers, deep drawing forming, automated TIG full welding, precision spring forming and assembly.
Surface Treatment Methods:Mechanical polishing, mirror polishing, electrolytic polishing (Ra≤0.8 μm internal), pickling and passivation for enhanced corrosion resistance and hygienic finish.
Raw Material Processing Methods:Precision forging for valve body strength, investment casting for complex internal components, stainless steel plate pressing and forming for caps and covers.
Operation Method:Automatic pressure-vacuum (PV) self-actuated breathing; no manual, pneumatic, or electric drive required during normal tank ventilation.
Seal Ring Material Options:PTFE, Viton (FKM), EPDM, Silicone; selected according to chemical compatibility, temperature range, and hygienic application needs.
Sealing Structure Type:Center sealing structure with spring-loaded valve disc; precision pressure and vacuum sealing design ensuring stable opening pressure and reliable resealing performance.
 
 
 
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