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4500 Series Non-Return Valve
Brand: Midland-ACS316L stainless steel non-return valves for pressures up to 174 psi and 391 psi.
Features- Specifically Designed for Severe Environments
- Ambient Temperature Range -20º to 70º C (-4° to 158° F)
- Low Temperature option available
- 316L Stainless Steel
1 - 12 of 28 Part Numbers
2NRVSE122
- Process Connection - 1/4" Female NPT
- Temperature Options - Low Temperature
- Working Pressure - psi: 174 (bar: 12, kPa: 1,200)
2NRVSE272
- Process Connection - 1/4" Female NPT
- Temperature Options - Low Temperature
- Working Pressure - psi: 392 (bar: 27, kPa: 2,700)
2NRVSN122
- Version: 316 Stainless Steel non-return valve
- Construction:
- Body: 316L SST
- Spring: 316 SST
- Seals: Nitrile
- Internals: 316L SST
- Cv: 1.6
- Max Flow at 6 bar, 1 bar differential: 1600 l/min (57 SCFM)
- Max Working Pressure: 12 bar (174 psi)
- Working Temperature: -20°C to +70°C (-4°F to +158°F)
2NRVSN272
- Process Connection - 1/4" Female NPT
- Temperature Options - Standard Temperature
- Working Pressure - psi: 392 (bar: 27, kPa: 2,700)
3NRVSE122
- Process Connection - 3/8" Female NPT
- Temperature Options - Low Temperature
- Working Pressure - psi: 174 (bar: 12, kPa: 1,200)
3NRVSE272
- Process Connection - 3/8" Female NPT
- Temperature Options - Low Temperature
- Working Pressure - psi: 392 (bar: 27, kPa: 2,700)
3NRVSN122
- Process Connection - 3/8" Female NPT
- Temperature Options - Standard Temperature
- Working Pressure - psi: 174 (bar: 12, kPa: 1,200)
3NRVSN272
- Process Connection - 3/8" Female NPT
- Temperature Options - Standard Temperature
- Working Pressure - psi: 392 (bar: 27, kPa: 2,700)
4NRVSE122
- Process Connection - 1/2" Female NPT
- Temperature Options - Low Temperature
- Working Pressure - psi: 174 (bar: 12, kPa: 1,200)
4NRVSE272
- Process Connection - 1/2" Female NPT
- Temperature Options - Low Temperature
- Working Pressure - psi: 392 (bar: 27, kPa: 2,700)
4NRVSN122
- Version: 316 Stainless Steel non-return valve
- Construction:
- Body: 316L SST
- Spring: 316 SST
- Seals: Nitrile
- Internals: 316L SST
- Cv: 3.9
- Max Flow at 6 bar, 1 bar differential: 3800 l/min (137 SCFM)
- Max Working Pressure: 12 bar (174 psi)
- Working Temperature: -20°C to +70°C (-4°F to +158°F)
4NRVSN272
- Process Connection - 1/2" Female NPT
- Temperature Options - Standard Temperature
- Working Pressure - psi: 392 (bar: 27, kPa: 2,700)
1 - 12 of 28 Part Numbers
Specifications
Brand
Ambient Temperature Range
- -20° to 70° C (-4° to 158° F)
- -50° to 90° C (-58° to 194° F) Low Temperature Version
Approvals & Certifications
- ATEX
- CE
- EAC
Enclosure, Body Material
- 316L Stainless Steel
Flow Capacity
- 1/2” - 137 scfm (228 m³/hour) 3.9 Cv Non-Return Valves (12 bar)
- 1/2” - 91 scfm (156 m³/hour) 3.3 Cv Non-Return Valves (27 bar)
- 1/4” - 26 scfm (441.16 m³/hour) 1.6 Cv Non-Return Valves (27 bar)
- 1/4” - 57 scfm (96 m³/hour) 1.6 Cv Non-Return Valves (12 bar)
- 1” - 274 scfm (462 m³/hour) 15.7 Cv Non-Return Valves (12 bar)
- 3/4” - 205 scfm (348 m³/hour) 14 Cv Non-Return Valves (12 bar)
- 3/8” - 65 scfm (110.4 m³/hour) 1.9 Cv Non-Return Valves (27 bar)
- 3/8” - 80 scfm (132 m³/hour) 2.3 Cv Non-Return Valves (12 bar)
Internal Part Material
- 316L Stainless Steel
Media
- Gases - Filtered Lubricated or Non-Lubricated
- Inert Gas
- Liquids - Low Pressure Hydraulic, Mineral Oil or Water
- Sour Natural Gas
- Sweet Natural Gas
NPT Connection
- 1” NPT Female
- 1/2” NPT Female
- 1/4” NPT Female
- 3/4” NPT Female
- 3/8” NPT Female
Pressure Range
- bar: 0 to 27
- kPa: 0 to 2,696
- psi: 0 to 391
Seat / Seal Material
- EPDM on Low Temperature Option
- Nitrile
Spring Material
- 316 Stainless Steel