Release Safety Valve
spring loaded safety valve
Release Safety Valve
Safety Valve
Release Safety Valve

Stainless Steel Spring Loaded Thermal pressure Release Safety Valve

JN-SFTV23-1002-10
Size: DN15–DN100.
Grade: SS304/SS316.
Standard: DIN, ANSI, ISO.
Working pressure: up to 40 bar.
Test pressure: 1.5× rated pressure.
Temperature Range: -20°C to 200°C.
PTFE seals: high chemical resistance.
Viton seals: excellent oil and heat resistance for hydraulic systems.
Quantity:
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Stainless Steel Spring Loaded Thermal pressure Release Safety Valve

Stainless Steel Spring Loaded Thermal Pressure Release Safety Valve is a spring-activated protective valvedesigned to safeguard pipelines and vessels from overpressure caused by thermal expansion. It is typically installedat the top or safety outlet of water heater pipelines, steam lines, or pressure vessels, where heat can increase internal pressure. In this position, the valveautomatically releases excess pressure to prevent equipment damage, thermal safety valve pipeline rupture, or safety hazards. Common applications include hot water systems, steam distribution lines, and industrial heating equipment. Typical types includespring loaded safety valve spring-loaded thermal pressure relief valves, adjustable set-point relief valves, combined thermal-pressure valves, and compact sanitary safety valves, each ensuring reliable pressure management and system protection.

Stainless Steel Spring Loaded Thermal Pressure Release Safety Valve differs from ordinary safety valves because it is specifically designed to respond to thermal-induced pressure increases,not just general overpressure. Traditional valves primarily react to high pressure, whereas this valvecombines spring-loaded precision with thermal responsivenessto protect water heaters, steam lines, and pressure vessels from heat-related pressure surges. Compared with other manufacturers, our valve features high-quality stainless steel construction, corrosion resistance, and finely calibrated springs,ensuring consistent and reliable operation. Additionally, our design provides faster pressure release, stable sealing performance, and longer service life, making it ideal for industrial, sanitary, and high-temperature applications.

 

Accessories

 Component & Material Table
  • Valve Body: Stainless steel 304 / 316 / 316L (for corrosion resistance)
  • Bonnet/Cap: Stainless steel 304 / 316
  • Valve Disc / Poppet: SS316 or hardened stainless steel
  • Spring: Stainless steel 304 / 17-7PH alloy steel
  • Seat: SS316 with precision-machined sealing surface
  • Sealing Elements: PTFE / Viton (FKM) / EPDM
  • Adjustment Screw: Stainless steel with anti-loosening lock nut
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 Spring Loaded Thermal pressure Release Safety Valve
 
Feature (F)、Advantage (A)、Benefit (B)
  • Raw Material:
  • F:High-integrity 304/316L stainless steel valve body with reinforced bonnet structure; temperature-resistant alloy spring; PTFE/FKM composite sealing elements
  • A: Superior resistance to thermal expansion, corrosion & pressure fatigue; stable mechanical strength under cyclic heating conditions
  • B: Ideal for thermal systems, heat exchangers & pressurized vessels; ensures consistent pressure protection in high-temperature environments
  • Processing Technology:
  • F:Precision CNC-machined pressure chamber; integral cast or forged body construction; calibrated spring assembly; anti-oxidation surface treatment
  • A: Accurate set-pressure control; enhanced structural rigidity; reduced thermal deformation; reliable long-term sealing
  • B: Maintains stable safety performance during continuous heating cycles; lowers maintenance frequency; improves system durability
  • Structure Feature:
  • F: Consolidated spring-loaded safety structure; thermal constant-pressure compensation design; flange/threaded/welded connection optional; compact vertical configuration
  • A:Automatic overpressure release with rapid reseating; stable pressure balance during temperature fluctuation; strong vibration resistance
  • B:Prevents equipment damage caused by thermal expansion; stabilizes pipeline pressure; improves operational safety and efficiency
  • Core Accessory Feature:
  • F:High-precision pressure disc & guide sleeve; thermally compensated stainless compression spring; reinforced seat alignment mechanism
  • A:Smooth opening at preset pressure; consistent resealing without chatter; accurate pressure repeatability
  • B: Enhances protection reliability; minimizes pressure surge impact; extends valve service life under high-temperature operation
  • Seal Ring Feature:
  • F:High-temperature PTFE/FKM sealing system; anti-aging & wear-resistant design; steam-resistant elastomer components
  • A:Excellent tight shut-off performance; stable elasticity under repeated heating & cooling cycles; wide temperature adaptability
  • B: Suitable for -20℃~220℃ working conditions; prevents medium leakage under thermal stress; reduces seal failure and replacement costs
 
Stainless Steel Spring Loaded Thermal pressure Release 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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