Sanitary pressure retaining valve 3A, 316L Stainless Steel
SY-PRTV
Sangyie Sanitary stainless steel pressure retaining valves are used to provide a constant back pressure in process plant across heat exchanger, AI liquid cooling systems, food, beverage, biotech and pharmaceutical industries. Inlet constant pressure valves are usually used as relief valves behind separators or heat-exchangers. Outlet constant pressure valves are usually used before filling machine.
Quantity:
SangyieSanitary stainless steel pressure retaining valves are used to provide a constant back pressure in process plant across heat exchanger, AI liquid cooling systems, food, beverage, biotech and pharmaceutical industries. Inlet constant pressure valves are usually used as relief valves behind separators or heat-exchangers. Outlet constant pressure valves are usually used before filling machine.
Sanitary stainless steel pressure retaining valve Operating principles
●Sanitary stainless steel pressure retaining valve works only with one compressed air pressure regulating valve, no need sensor or any other accessories
●Retaining pressure is obtained by coupling action between membrane and valve stem. When the pressure in pipeline changes, position of the valve stem will change in order to obtain set pressure
●Per Sanitary stainless steel Inlet pressure retaining valve, when pressure in pipeline in front of the valve inlet exceeds set pressure, the valve will open to reduce the pressure to reach set pressure. If pressure in the pipeline in front of valve inlet is lower than set pressure, the valve will close
●PerSanitary stainless steel Outlet pressure retaining valve, when pressure in pipeline behind the valve outlet is lower than set pressure, the valve will open to increase the pressure to reach set pressure. If pressure in pipeline behind valve outlet is higher than set pressure, the valve will close
**NOTE: When order Sanitary stainless steel pressure retaining valves, please do indicate the valves should be Inlet retaining pressure or Outlet retaining pressure!
Sanitary stainless steel pressure retaining valve Technical features
●Non-retention
●No dead point
●Superior KV value
● Production process complies with 3A, DIN, ISO sanitary valve norms
Sanitary stainless steel pressure retaining valve Technical parameters
Stock size | 1.5" ~2", DN40 ~ DN50 |
Working temperature | EPDM+PTFE, -10 ~ 140°C,14 ~ 284°F |
MaxWorking pressure | 10bar, 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 |
Materials
●Valve body EN 1.4404 (AISI 316L) or EN 1.4435 - BN2 (316L) Fe < 0.5%
●Upper membrane NBR
Lower membrane EPDM+PTFE
Sanitary stainless steel pressure retaining valve Data sheet
Inlet pressure retaining valve
| Model no | Size | Do | Dn | A | L | H | H1 |
| SY-PRTV011110150 | 1 1/2" | 38.1 | 34.8 | 203 | 110 | 175 | 44 |
| SY-PRTV011110200 | 2" | 50.8 | 47.5 | 203 | 110 | 175 | 50 |
| SY-PRTV011120040 | DN40 | 40/41 | 37/38 | 203 | 110 | 175 | 45 |
| SY-PRTV011120050 | DN50 | 52/53 | 49/50 | 203 | 110 | 175 | 51 |
Outlet pressure retaining valve
| Model no | Size | Do | Dn | A | L | H | H1 |
| SY-PRTV011110150 | 1 1/2" | 38.1 | 34.8 | 203 | 110 | 215 | 84 |
| SY-PRTV011110200 | 2" | 50.8 | 47.5 | 203 | 110 | 215 | 90 |
| SY-PRTV011120040 | DN40 | 40/41 | 37/38 | 203 | 110 | 215 | 85 |
| SY-PRTV011120050 | DN50 | 52/53 | 49/50 | 203 | 110 | 215 | 91 |
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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