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4500 Series Non-Return Valve

Brand: Midland-ACS

316L 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
2NRVSE122
  • Process Connection - 1/4" Female NPT
  • Temperature Options - Low Temperature
  • Working Pressure - psi: 174 (bar: 12, kPa: 1,200)
2NRVSE272
2NRVSE272
  • Process Connection - 1/4" Female NPT
  • Temperature Options - Low Temperature
  • Working Pressure - psi: 392 (bar: 27, kPa: 2,700)
2NRVSN122
2NRVSN122
MIDLAND-ACS Series 4500 Series Ancillary Valve, 1.6 Cv, 1/4" NPT, 316L SST
  • 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
2NRVSN272
  • Process Connection - 1/4" Female NPT
  • Temperature Options - Standard Temperature
  • Working Pressure - psi: 392 (bar: 27, kPa: 2,700)
3NRVSE122
3NRVSE122
  • Process Connection - 3/8" Female NPT
  • Temperature Options - Low Temperature
  • Working Pressure - psi: 174 (bar: 12, kPa: 1,200)
3NRVSE272
3NRVSE272
  • Process Connection - 3/8" Female NPT
  • Temperature Options - Low Temperature
  • Working Pressure - psi: 392 (bar: 27, kPa: 2,700)
3NRVSN122
3NRVSN122
  • Process Connection - 3/8" Female NPT
  • Temperature Options - Standard Temperature
  • Working Pressure - psi: 174 (bar: 12, kPa: 1,200)
3NRVSN272
3NRVSN272
  • Process Connection - 3/8" Female NPT
  • Temperature Options - Standard Temperature
  • Working Pressure - psi: 392 (bar: 27, kPa: 2,700)
4NRVSE122
4NRVSE122
  • Process Connection - 1/2" Female NPT
  • Temperature Options - Low Temperature
  • Working Pressure - psi: 174 (bar: 12, kPa: 1,200)
4NRVSE272
4NRVSE272
  • Process Connection - 1/2" Female NPT
  • Temperature Options - Low Temperature
  • Working Pressure - psi: 392 (bar: 27, kPa: 2,700)
4NRVSN122
4NRVSN122
MIDLAND-ACS 4500 Series Ancillary Products, 3.9 Cv, 1/2" NPT
  • 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
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

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