Air Valve
Air Valve
Air Valve
Air Valve
Air Valve

Stainless Steel Hygienic Adjusting Type Air low pressure Relief Safety Valve

JN-SFTV23-1002
Size: DN25–DN150;
Grade: SS304/SS316L;
Standard: DIN/SMS/ISO/3A;
Working pressure: 0.1–10 bar adjustable;
Test pressure: 1.5× rated;
Temperature Range: -20°C to 180°C;
PTFE seals: chemical-resistant and hygienic;
Viton seals: high-temperature durable. Designed for automatic pressure and vacuum protection in sanitary tanks and process systems.
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Stainless Steel Hygienic Adjusting Type Air low pressure Relief Safety Valve
 

Stainless Steel Hygienic Adjusting Type Air Low Pressure Relief Safety Valve is an adjustable sanitary air safety valve designed to protect low-pressure gas systems in hygienic processing environments. It is commonly installed on the top of storage tanks, air pipelines, Air Valve fermentation vessels, low Valve or buffer tanks, where it maintains controlled internal pressure byautomatically releasing excess air when preset pressure is reached. This prevents tank deformation, over-expansion, or instability in sensitive processes. The adjustable mechanism allows precise low-pressure setting for delicate applications. Common types includespring-adjustable relief valves, clamp-type sanitary air relief valves, threaded air safety valves, and combined pressure-vacuum air protection valves, suitable for food, beverage, dairy, and pharmaceutical air systems.

Stainless Steel Hygienic Adjusting Type Air Low Pressure Relief Safety Valve differs from ordinary safety valves in that it is specifically designed for low-pressure air systems in sanitary environments, offering adjustable pressure settings, smooth internal finish, and hygienic clamp connections instead of industrial threaded or flanged structures. It providesmore precise low-pressure control and cleaner operation, making it suitable for food, beverage, and pharmaceutical use. Compared with other manufacturers, our products featurehigh-precision CNC machining, stable spring calibration, strict pressure testing, and superior surface polishing (Ra ≤ 0.8μm). We also offer custom pressure ranges, multiple seal material options, and reliable long-term performance, ensuring safer and more stable system protection.

 

Accessories

 Component & Material Table
  • Valve Body: 304 / 316L stainless steel (for hygienic & corrosion-resistant applications)
  • Spring: Stainless steel 304 / 316
  • Seal Ring: Food-grade EPDM / PTFE / FKM / Silicone
  • Vacuum Disc / Pressure Plate: Precision-machined stainless steel
  • Surface Finish: Internal Ra ≤ 0.6–0.8 μm (mirror polished)
Product Parameter Details
  • Material：Body and internal components in SS304 / SS316L; spring in stainless steel; seals in PTFE, EPDM, or Viton; all materials suitable for hygienic processes.
  • Structural Form：Spring-loaded pressure relief with integrated vacuum breaker; optional combined pressure/vacuum structure; dead-leg-free sanitary design; optional insulated or jacketed body.
  • Pressure Rating：Low to medium pressure range (e.g., 0.1–10 bar adjustable); vacuum protection sensitivity calibrated per tank requirement; factory pressure tested.
  • Function：Automatic overpressure release and vacuum compensation; surge protection; tank deformation prevention; sterile process safety assurance.
  • Grade Level：Sanitary grade for food, beverage, dairy, and pharmaceutical; optional industrial chemical grade.
  • Specification Standards：DIN, SMS, ISO, 3A, ASME BPE clamp or flange standards for global hygienic pipeline compatibility.
  • Certification / Registration：Optional FDA-compliant seals, 3A certification, material traceability, pressure testing and safety compliance documentation.
  • Installation Direction：Typically installed vertically on tank tops; horizontal installation optional depending on design; drainage-friendly configuration.
  • Customization：Adjustable pressure settings, customized sizes, special seal materials, connection types, and sample-based OEM production available.
Stainless Steel Hygienic Adjusting Type Air low pressure Relief Safety Valve
 
Feature (F)、Advantage (A)、Benefit (B)
  • Raw Material:
  • F:Premium 304/316L stainless steel hygienic valve body; precision-balanced pressure disc; FDA-approved EPDM/PTFE/FKM sealing components
  • A:Outstanding corrosion and oxidation resistance; hygienic-grade material purity; stable performance under pressure fluctuation
  • B: Ideal for food, beverage, dairy & pharmaceutical tank systems; protects product integrity and prevents secondary contamination
  • Processing Technology:
  • F:Internal electrolytic polishing (Ra ≤ 0.6 μm); CNC-machined valve seat; fully enclosed spring chamber; crevice-free sanitary design
  • A: Smooth surface reduces residue buildup; accurate pressure response; enhanced structural durability; compatible with CIP/SIP cleaning
  • B: Minimizes cleaning downtime; improves production efficiency; ensures long-term stable protection of storage vessels
  • Structure Feature:
  • F: Dual-function design integrating positive pressure relief & vacuum breaker; spring-loaded overpressure mechanism; gravity-assisted vacuum plate; clamp or welded connection optional
  • A: Automatic response to sudden pressure surge or vacuum formation; precise resealing after discharge; compact hygienic configuration
  • B: Prevents tank rupture or collapse; stabilizes internal vessel pressure; supports safe continuous process operation
  • Core Accessory Feature:
  • F: Calibrated stainless steel compression spring; precision-guided pressure stem; reinforced seat alignment structure
  • A:Accurate set-pressure control; fast opening under surge conditions; consistent resealing without leakage
  • B:Enhances safety reliability; reduces pressure fluctuation risk; extends equipment lifespan and lowers maintenance frequency
  • Seal Ring Feature:
  • F:High-elastic sanitary-grade sealing ring with steam-resistant formulation; anti-aging & wear-resistant structure
  • A: Excellent airtight performance; stable elasticity after repeated sterilization cycles; wide temperature adaptability
  • B:Suitable for -20℃~150℃ working environments; prevents gas or vapor leakage; maintains safety compliance in hygienic processing systems
 
Stainless Steel Hygienic Adjusting Type Air low pressure Relief Safety Valve
 
Connection Type: Sanitary clamp, flange (DIN / ANSI / SMS / ISO), threaded, or welded connections for tank and pipeline installation.
Manufacturing Process: CNC precision machining, sanitary welding, laser cutting, precision turning, and forming processes to ensure dimensional accuracy and smooth sealing surfaces.
Surface Treatment: Mechanical polishing, mirror polishing (Ra≤0.8μm or Ra≤0.4μm optional), electrolytic polishing, passivation, or matte industrial finish.
Raw Material Processing: Forged stainless steel body, precision casting components, rolled plate forming, or solid bar machining depending on pressure requirements.
Operation Method: Automatic spring-loaded operation standard; optional pneumatic-assisted or manual test lifting mechanism available.
Seal Material Options: PTFE, EPDM, Viton (FKM), Silicone, and FDA-compliant hygienic sealing materials.
Sealing Structure: Center soft sealing design standard; optional metal hard sealing or dual-seal structure for enhanced pressure and vacuum protection performance.
 
 
 

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