cryogenic Valve
cryogenic Valve
cryogenic Valve
cryogenic Valve
cryogenic Valve

Stainless Steel Hygienic Water Seal Type Pressure cryogenic Relief Safety Valve

JN-SFTV23-1001-1
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 Water Seal Type Pressure cryogenic Relief Safety Valve
 

Stainless Steel Hygienic Water Seal Type Pressure Cryogenic Relief Safety Valve is awater-seal-based safety protection valve designed for cryogenic and hygienic process systems. It is typically installed on thetop of low-temperature storage tanks, cryogenic vessels, or vent pipelines, cryogenic Valve where it maintains astable sealing barrier while automatically releasing excess pressure to prevent structural damage. The water seal structure provides continuous isolation from external contamination and backflow, making it suitable for sterile or sensitive media. Common types include single water-seal relief valves, double-chamber water-seal valves, cryogenic vent protection valves, and combined pressure-vacuum water-seal models, ensuring safe operation in low-temperature sanitary applications.

Stainless Steel Hygienic Water Seal Type Pressure Cryogenic Relief Safety Valve differs from ordinary safety valves by utilizing a water-seal isolation structure instead of a conventional spring-loaded direct discharge mechanism, providingcontinuous hygienic sealing and backflow prevention in cryogenic systems. Standard safety valves mainly focus on pressure release, while this design ensuresstable sealing performance under low-temperature conditions and contamination-sensitive environments. Compared with other manufacturers, our valve features precision-fabricated stainless steel chambers, optimized water-seal depth control, superior corrosion resistance, and enhanced cryogenic adaptability,ensuring reliable pressure relief without compromising sterility. The result issafer tank protection, longer service life, and improved operational stability in hygienic cryogenic applications.

 

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 Water Seal Type Pressure cryogenic 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 Water Seal Type Pressure cryogenic 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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