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STAINLESS STEEL Inox Vacuum Adjustable Exhaust Breather Valve

JN-XHVSQ-23 1001-2
STAINLESS STEEL SS304 Sanitary Tank Oil Fuel Storage Water Breather Valve. Size: DN25–DN150. Grade: SS304. 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 sanitary tank ventilation.
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STAINLESS STEEL Inox Vacuum Adjustable Exhaust Breather Valve
 
TheSTAINLESS STEEL Inox Vacuum Adjustable Exhaust Breather Valve is an automatic tank vent valve designed to regulate adjustable vacuum and exhaust pressure in storage and process systems. It is typically installed on thetop vent nozzle of tanks or at the terminal section of vent pipelines, where it controls air intake and gas discharge during filling, emptying, or temperature changes. At this position, it helps prevent vacuum collapse, stabilize internal tank pressure, and protect product quality from contamination. Common types include adjustable vacuum breather valves,pressure-vacuum combined breather valves,exhaust-only breather valves, and flame-arrester breather valves, widely used in sanitary, chemical, oil, and water storage applications.Exhaust Valve
 
TheSTAINLESS STEEL Inox Vacuum Adjustable Exhaust Breather Valvediffers from astandard breather valvebecause it featuresadjustable vacuum and exhaust pressure settings, allowing precise control of tank breathing conditions, while ordinary breather valves often provide fixed or basic ventilation functions. It offers more accurate pressure regulation, improved protection against vacuum damage, and enhanced adaptability for different media and tank sizes. Compared with other suppliers, our valve providesprecision CNC machining,stable calibrated spring systems,high-quality PTFE/Viton seals,andfull stainless steel sanitary construction, delivering better sealing performance,longer durability,higher safety reliability,andmore flexible application controlin industrial and hygienic storage systems.Stainless Steel Valve
 

Accessories

 Component & Material Table
  • Valve Body – SS304 standard; SS316L optional for high corrosion resistance.
  • Adjustable Valve Core / Disc – SS304 or PTFE-coated stainless steel for precision sealing.
  • Spring & Adjustment Mechanism – SS304/SS316 calibrated spring with pressure adjustment screw.
  • Seal Ring – PTFE / Viton (FKM) / EPDM / Silicone options depending on media and temperature.
  • Valve Cover / Weather Hood – SS304 protective outer housing.
  • Connection End – SS304 sanitary clamp, threaded, welded, or flange connection.
  • Filter Screen (optional) – SS304 mesh for dust and particle protection.
  • Protective Cap / Flame Arrester (optional) – SS304 safety accessory.
Product Parameter Details
 
  • Material: SS304 standard stainless steel; SS316L upgrade available; PTFE or Viton seals for chemical, oil, and high-temperature applications.
  • Structural Design: Adjustable vacuum and exhaust pressure structure; spring-loaded automatic breathing design; optional anti-splash hood, flame arrester, or internal filter.
  • Pressure Rating: Adjustable vacuum and exhaust pressure range typically 0.01–0.6 MPa; test pressure up to 0.9 MPa depending on size and configuration.
  • Temperature Range: PTFE seals -20°C to 150°C; Viton seals -10°C to 200°C; suitable for sanitary liquids, chemical media, oil, and water storage.
  • Functional Performance: Automatic vacuum relief, exhaust regulation, tank breathing control, contamination prevention, and stabilization of internal tank pressure.
  • Grade Classification: Sanitary grade, food-grade, pharmaceutical-grade, chemical industry grade depending on polishing level and sealing materials.
  • Standards Compatibility: DIN, SMS, ISO, 3A hygienic standards; ANSI/ASME flange options for industrial tank venting systems.
  • Certification / Compliance Level: Hygienic polishing Ra≤0.8 μm; factory pressure calibration; optional safety vent and explosion-proof compliance.
  • Installation Direction: Vertical installation on tank top preferred; horizontal vent line installation possible with internal spring orientation support.
  • Customization Options: Size DN25–DN150; adjustable pressure settings; custom sealing materials; special connection types; OEM manufacturing and sample customization available.
 
STAINLESS STEEL Inox Vacuum Adjustable Exhaust Breather Valve
 
Feature (F)、Advantage (A)、Benefit (B)

    1. Precision Stainless Steel Adjustable Structure

  • F: SS304/SS316L precision-forged body, CNC machining, adjustable spring-loaded valve core with pressure regulation screw.
  • A: Provides accurate vacuum and exhaust pressure control, improves operational stability, and reduces tank stress fluctuations.
  • B: Customers achieve safer tank protection, flexible pressure adjustment, and improved system adaptability.

    2. Full Welding & Sanitary Polishing Construction

  • F: Automated TIG full welding, internal polishing Ra≤0.8 μm, smooth airflow channel design.
  • A: Enhances corrosion resistance, reduces residue accumulation, improves cleanability, and increases hygienic performance.
  • B: Users benefit from longer service life, easier maintenance, and compliance with sanitary processing requirements.

    3. Advanced Sealing System

  • F: PTFE/Viton/EPDM/Silicone seal options, precision-machined sealing surfaces, center sealing spring-loaded structure.
  • A: Improves sealing stability, reduces leakage and vapor loss, increases chemical and temperature resistance.
  • B: Customers gain lower product loss, higher environmental safety, and reduced operational risk.

    4. Modular Internal Component Design

  • F: Replaceable valve disc, spring assembly, adjustment mechanism, and multi-standard sanitary clamp or flange connections.
  • A: Simplifies inspection and maintenance, reduces repair complexity, increases application flexibility.
  • B: Users reduce downtime, lower maintenance costs, and maintain continuous production efficiency.

    5. Enhanced Safety & Customization Features

  • F: Optional flame arrester, anti-splash hood, internal filter screen, adjustable vacuum/exhaust settings.
  • A: Improves explosion safety, contamination control, and operational adaptability for different tank systems.
  • B: Customers obtain customized performance, improved plant safety standards, and reliable long-term tank ventilation protection.
 
 
STAINLESS STEEL Inox Vacuum Adjustable Exhaust Breather Valve
 
Interface Connection Types:Sanitary clamp (Tri-clamp), threaded connection, welded end, DIN/SMS/ISO hygienic fittings, ANSI/ASME flange connections for industrial tank vents and exhaust pipelines.
Manufacturing & Processing Methods:CNC precision machining, laser cutting, sheet metal bending for covers, deep drawing forming, automated TIG full welding, precision spring forming and calibrated assembly.
Surface Treatment Methods:Mechanical polishing, mirror polishing optional, electrolytic polishing (Ra≤0.8 μm internal for sanitary grade), pickling and passivation to improve corrosion resistance.
Raw Material Processing Methods:Precision forging for main valve body strength, investment casting for complex internal components, stainless steel plate pressing and rolling for protective covers and hoods.
Operation Method:Automatic adjustable pressure-vacuum breathing (self-actuated); no manual, pneumatic, or electric actuator required for normal exhaust and vacuum regulation.
Seal Ring Material Options:PTFE for chemical resistance, Viton (FKM) for oil and high temperature, EPDM for water-based media, Silicone for hygienic and food-grade applications.
Sealing Structure Type:Center sealing spring-loaded valve disc design; precision adjustable vacuum/exhaust sealing mechanism ensuring stable opening pressure and reliable resealing performance.
 
 
 
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