Safety overflow valve 3A, 316L Stainless Steel
SY-PRLV
Sangyie Stainless steel safety overflow valves are designed to protect pipelines, vessels, tanks or equipment from over pressure or vacuum. Minimizing risk of explosion or implosion by relieving excess pressure. Widely used in heat exchanger, AI liquid cooling systems, food-processing, beverages, brewing, wine, dairy, cosmetic, personal care, pharmaceutical, biotechnology and semiconductor industries.
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Sangyie Stainless steel safety overflow valves are designed to protect pipelines, vessels, tanks or equipment from over pressure or vacuum. Minimizing risk of explosion or implosion by relieving excess pressure. Widely used in heat exchanger, AI liquid cooling systems, food-processing, beverages, brewing, wine, dairy, cosmetic, personal care, pharmaceutical, biotechnology and semiconductor industries.
Stainless steel safety overflow valve Operating principles
● Stainless steel safety overflow valve is closed normally
● Pressure is set by adjusting the spring
● When pressure in equipment exceeds the set pressure, the valve will open to let the medium pass through to relief the pressure in equipment
Stainless steel safety overflow valve Technical features
● Non-retention
● No dead point
● Higher levels of safety
● Less downtime
● Higher yields
● Production process complies with 3A, DIN, ISO sanitary valve norms
Stainless steel safety overflow valve Technical parameters
Stock size | 1" ~ 4", DN25 ~ DN100 |
Working temperature | EPDM, -20 ~ 130°C, -4 ~ 266°F Other materials are available upon request |
Working pressure | vacuum to10bar, 145psi |
Surface finish | Internal Ra≤23.6µin, 0.6µm; EP Ra≤11.8µin, 0.3µm |
Pipe joint standard | DIN, SMS, BS / RJT, 3A, ISO / IDF, ASME / BPE |
Connection type | welded, clamped, threaded, flanged, or others upon request |
Materials
● Valve body EN 1.4301 (AISI 304), EN 1.4404, EN 1.4435(AISI 316L)
● Valve seat/seal EPDM, FPM, HNBR, PTFE
Stainless steel safety overflow valve Data sheet
| Model no | Size | Do | Dn | D | D1 | A | L | H |
| SY-PRLV10224E10100 | 1" | 25.4 | 22.1 | 50.5 | 45 | 52.5 | 55 | 216 |
| SY-PRLV10224E10150 | 1 1/2" | 38.1 | 34.8 | 505 | 45 | 52.5 | 55 | 216 |
| SY-PRLV10224E10200 | 2" | 50.8 | 47.5 | 64 | 51 | 58 | 65 | 269 |
| SY-PRLV10224E10250 | 2 1/2" | 63.5 | 60.2 | 77.5 | 70 | 66 | 80 | 295 |
| SY-PRLV10224E10300 | 3" | 76.2 | 72.9 | 91 | 70 | 76 | 90 | 310 |
| SY-PRLV10224E10400 | 4" | 101.6 | 97.4 | 119 | 85 | 114 | 114 | 365 |
| SY-PRLV10224E20025 | DN25 | 28/29 | 25/26 | 50.5 | 45 | 52.5 | 55 | 216 |
| SY-PRLV10224E20040 | DN40 | 40/41 | 37/38 | 50.5 | 45 | 52.5 | 55 | 216 |
| SY-PRLV10224E20050 | DN50 | 52/53 | 49/50 | 64 | 51 | 58 | 65 | 269 |
| SY-PRLV10224E20065 | DN65 | 70 | 66 | 91 | 70 | 66 | 80 | 295 |
| SY-PRLV10224E20080 | DN80 | 85 | 81 | 106 | 70 | 76 | 90 | 310 |
| SY-PRLV10224E20100 | DN100 | 104 | 100 | 119 | 85 | 114 | 114 | 365 |
Application Sectors
●Dairy industry: Milk storage tanks, yogurt fermentation tanks, cream mixing vessels
●Beverage & food: Juice, wine, beer, syrup, edible oil, sauce processing tanks
●Pharmaceutical & biotech: API preparation tanks, sterile liquid storage, cell culture bioreactors
●Cosmetic & personal care: Lotion, essence, cream, shampoo blending tanks
●Water treatment: Purified water, WFI (Water for Injection) storage and distribution systems
●Cooling systems
Applicable Media
Liquid materials, viscous slurries, low-concentration acid/alkaline cleaning fluids, sterile pure water, fermentation broths, oil-based emulsions, alcohol solvents
Factory Testing Items
● Raw material spectrum inspection for stainless steel components
●Surface roughness detection of all wetted parts
●Water pressure shell strength test at 1.5 times nominal pressure
●Air tightness leakage test for valve cavity and stem
●CIP high-temperature circulation aging simulation test for seals
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