Pressure safety valve
water heater Safety Valve
Pressure safety valve
exhaust Valve
Pressure safety valve

Stainless Steel 316 leser Pressure water heater exhaust safety valve

JN-EHST23-1002-12
Size: 1/2"–4".
Grade: SS304/SS316L.
Standard: DIN, SMS, 3A.
Working pressure: 0.1–1.6 MPa.
Test pressure: 2.4 MPa.
Temperature Range: -20°C to 180°C.
PTFE seals: chemical resistance.
Viton seals: high-temperature sealing performance.
Designed for fast exhaust and reliable pressure protection.
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Stainless Steel 316 leser Pressure water heater exhaust safety valve

Stainless Steel 316 Leser Pressure Water Heater Exhaust Safety Valveis a high-pressure exhaust safety valvedesigned to protect water heater systems from excessive pressure buildup. It is commonly installed on the hot water outlet or upper safety port of water heater pipelines and storage tanks,where steam or pressure may accumulate during heating. At this location, the valve automatically releases excess pressure or exhausts steam once exhaust Valve the preset pressure is reached, preventing tank damage and ensuring safe system operation. Typical types include spring-loaded exhaust safety valves, adjustable pressure relief valves, high-pressure water heater safety valves, and steam exhaust relief valves, widely used in heating equipment and pressurized hot water systems Pressure safety valve .

Stainless Steel 316 Leser Pressure Water Heater Exhaust Safety Valve differs from ordinary safety valves because it is designed specifically forhigh-temperature water heater and steam exhaust conditions, providing more stable pressure release in heating systems. Conventional safety valves generally respond only to basic overpressure, while this valvefocuses on controlled steam exhaust and precise pressure discharge, ensuring safer operation of hot water tanks and heating pipelines. Compared with other manufacturers’ products, our valve adoptspremium 316 stainless steel material, precision pressure calibration, and optimized exhaust channel design, offering excellent corrosion resistance and reliable performance. In addition, our design provides stable exhaust flow, improved sealing reliability, and longer service life in demanding thermal applications.

Accessories

 Component & Material Table
  • Valve Body – Stainless steel SUS (304 / 316L)
  • U-shaped water seal cavity – Stainless steel SUS (316L)
  • pressure gauge – Sanitary pressure gauge, housing made of stainless steel SUS (304).
  • valve core– Stainless steel SUS (316L)
  • spring – Stainless steel (316L) / Hastelloy
  • sealing ring – EPDM, PTFE/or silicone rubber
  • Quick-install clamps– Stainless steel SUS (304)
Product Parameter Details
  • Structural Form：Spring-loaded, micro-opening, sanitary U-shaped water seal quick-release structure, with pressure setting and pressure gauge display.
  • Pressure range：0.1~1.6MPa
  • Main functions：The system automatically opens to release pressure when overpressure occurs and automatically closes after the pressure drops, protecting pipelines and equipment; the pressure gauge displays the pressure in real time.
  • Applicable Level：Sanitary
  • Specification Standards：DIN, SMS, 3A, ISO, IDF
  • Certification / Registration：Optional FDA-compliant seals, 3A certification, material traceability, pressure testing and safety compliance documentation.
  • Hygiene and safety levels：GMP, FDA, 3A, USP Class VI
  • Installation direction：Vertical installation is possible; some models can be installed horizontally.
Stainless Steel 316 leser Pressure water heater exhaust safety valve
 
Feature (F)、Advantage (A)、Benefit (B)
  • 1.Raw materials
  • F:Key components such as the valve body, U-shaped water seal chamber, and valve core are all forged from SUS 304/SUS 316L food-grade stainless steel, meeting FDA, USP Class VI, and 3-A hygiene standards.
  • A:The material is pure, corrosion-resistant, and does not leach heavy metals. It has high structural strength and will not deform or contaminate the medium during long-term use.
  • B: Ensuring product hygiene and safety from the source, meeting the high-cleanliness requirements of industries such as pharmaceuticals, food, and beverages, easily passing GMP, HACCP, and other compliance audits, and mitigating compliance risks.
  • 2. Processing technology
  • F:The product is manufactured using a one-piece precision casting and fully welded molding process. The inner cavity and flow channels are treated with mechanical polishing and electrolytic polishing, resulting in a surface roughness Ra ≤ 0.4 μm.
  • A: Seamless construction with no cleaning dead spots; can withstand CIP online cleaning and SIP online sterilization.
  • B: Completely eliminates bacterial growth and media residue, reduces cleaning difficulty, and improves production cleanliness.
  • 3. Structural features
  • F: U-shaped water-sealed spring micro-opening structure, integrated pressure gauge for real-time monitoring, supports quick-connect Tri-Clamp connection, and includes a pressure setting device.
  • A: Compact size, flexible installation, precise pressure response, visual monitoring, and easy assembly/disassembly.
  • B: Adaptable to sanitary pipelines with limited space, provides real-time monitoring of operating conditions, offers rapid pressure relief protection, and ensures continuous production.
  • 4. Features of main components
  • F: The valve core is precision-ground from SUS 316L stainless steel to achieve a high-precision fit with the valve seat; the spring is made of corrosion-resistant stainless steel.
  • A:The valve core opens and closes smoothly, is wear-resistant and erosion-resistant, has good repeatability, and maintains stable accuracy over long-term operation.
  • B:Extends the overall lifespan of valves, reduces downtime due to malfunctions, and lowers maintenance costs and material waste.
  • 5. Features of the sealing ring
  • F:Uses food-grade EPDM, silicone, or PTFE one-piece molded sealing rings, compliant with FDA and USP Class VI certifications.
  • A: The sealing surfaces fit tightly, are resistant to high temperatures, acids and alkalis, and aging, and are not easily deformed or swollen.
  • B:Significantly extend the replacement cycle of sealing rings, reduce maintenance frequency and consumable costs, and avoid leakage and material waste caused by seal failure.
 
Stainless Steel 316 leser Pressure water heater exhaust safety valve
 
Maximum Flow Rate: 1-40 m2/h
Maximum Pressure: PN16 (16 bar)
Body Material: AISI 304 (1.4301), AISI 316L(1.4404)
Body Types: Sanitary U-type Water-seal SafetyValve with Pressure Gauge
Sealing Element: EPDM, PTFE, Silicone (foodgrade,FDA/USP Class VI compliant)
Actuation Type: Spring-loaded direct-actingwithoptional smart positioner)
Inlet & Outlet Sizes: 1"-4"(DN25-DN100)
 

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