Safety valve stainless steel 6127 - DN20 - 0.2-40 bar

Code: 6127.020.0-5 6127.020.1-0 6127.020.1-5 6127.020.2-0 6127.020.2-5 6127.020.3-0 6127.020.3-5 6127.020.4-0 6127.020.4-5 6127.020.5-0 6127.020.5-5 6127.020.6-0 6127.020.6-5 6127.020.7-0 6127.020.7-5 6127.020.8-0 6127.020.8-5 6127.020.9-0 6127.020.9-5 6127.020.10-0 6127.020.10-5 6127.020.11-0 6127.020.11-5 6127.020.12-0 6127.020.12-5 6127.020.13-0 6127.020.13-5 6127.020.14-0 6127.020.14-5 6127.020.15-0 6127.020.15-5 6127.020.16-0 6127.020.16-5 6127.020.17-0 6127.020.17-5 6127.020.18-0 6127.020.18-5 6127.020.19-0 6127.020.19-5 6127.020.20-0 6127.020.20-5 6127.020.21-0 6127.020.21-5 6127.020.22-0 6127.020.22-5 6127.020.23-0 6127.020.23-5 6127.020.24-0 6127.020.24-5 6127.020.25-0 6127.020.25-5 6127.020.26-0 6127.020.26-5 6127.020.27-0 6127.020.27-5 6127.020.28-0 6127.020.28-5 6127.020.29-0 6127.020.29-5 6127.020.30-0 6127.020.30-5 6127.020.31-0 6127.020.31-5 6127.020.32-0 6127.020.32-5 6127.020.33-0 6127.020.33-5 6127.020.34-0 6127.020.34-5 6127.020.35-0 6127.020.36-0 6127.020.37-0 6127.020.38-0 6127.020.39-0 6127.020.40-0 Choose variant
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Stainless steel relief valve 6127 with DN20 flange and large dimensions for releasing air and aggressive media from the pipeline in case of excessive pressure. Delivery including protocol of setting to the required pressure with seal according to EN 1092-1 PN40. Pressure Equipment Directive 97/23/EG (PED).

Detailed information

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Product detailed description

Pressure relief valve in stainless steel 6127.020

Safety valve for compressed air flanged stainless steel Ordering
number
Connection
DN
Luminosity
DN
Pressure setting
bar
Temperature
°C
Material Seals
6127.020 DN20 DN18 0,2-40 -196/+300 stainless steel 1.4408 stainless steel 1.4408
6127.025 DN25 DN18 0,2-40 -196/+300 stainless steel 1.4408 stainless steel 1.4408
6127.032 DN32 DN18 0,2-40 -196/+300 stainless steel 1.4408 stainless steel 1.4408
6127.040 DN40 DN23 0,2-40 -196/+300 stainless steel 1.4408 stainless steel 1.4408
6127.050 DN50 DN29 0,2-40 -196/+300 stainless steel 1.4408 stainless steel 1.4408
6127.065 DN65 DN37 0,2-40 -196/+300 stainless steel 1.4408 stainless steel 1.4408
6127.080 DN80 DN46 0,2-40 -196/+300 stainless steel 1.4408 stainless steel 1.4408
Please note : We only supply relief valves set to the required pressure in 0.1 bar increments - please specify when ordering

Relief valve flows 6127

Opening pressure (bar) 2 4 6 8 10 12 16 20 24 28
Order number Discharge power in Nm³/h
6127.020 150 262 369 476 582 689 903 1116 1329 1543
6127.025 200 356 500 645 790 935 1225 1515 1804 2094
6127.032 200 356 500 645 790 935 1225 1515 1804 2094
6127.040 326 581 817 1054 1290 1527 2000 2473 2946 3419
6127.050 518 923 1299 1675 2051 2427 3179 3931 4683 5435
6127.065 843 1502 2115 2727 3339 3951 5175 6399 7624 8848
6127.080 1304 2322 3268 4214 5161 6107 7999 9891 11783 13676
6127.100 2218 3951 5561 7170 8780 10839 13609 16828 20047 23266

Additional parameters

Category: HEROSE safety valves - functions, types and applications
Pressure: 32 bar
Certification: Including certification
Material: Stainless steel
Medium: Compressed air, Water, Steam, Oil, Inert gases, Cryogenic gases
Settings: 0.2 - 40 bar
Lightness: DN 20
Seals: Stainless steel
Thread: DN20

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HEROSE is a German valve manufacturer from Bad Oldesloe that has been making valves since 1873. Today it focuses mainly on safety valves and valves for cryogenics and pressure vessel construction, and delivers its products to more than 80 countries. HEROSE has an authorised service partner in the Czech Republic.

A safety valve opens as soon as the pressure in a vessel or pipeline exceeds the set value, and releases the excess medium. We offer valves for compressed air, steam, water and cryogenic gases, with 1/4″ to 2″ threads and with DN15 to DN100 flanges. Every valve is delivered set to your pressure and sealed.

HEROSE safety valves 06C02, 6217, 6395, 6383 and flanged 6121Set and sealed
since 1873valve manufacturing in Germany
80+ countrieswhere HEROSE delivers its valves
0.2–55 barset pressure range by type
−196 °Cstainless valves for cryogenic gases

Which safety valve for which medium

HEROSE 06C02 brass safety valve

06C02 — compact valve for air

For compressors and air receivers. Brass or stainless steel valve with male thread and open discharge for air and inert gases.

  • 1/4″ to 1″ thread
  • set pressure 0.2 to 50 bar depending on size
  • TÜV-SV.1090 type approval
View valve
HEROSE 6217 brass safety valve

6217 — full-lift valve for air

High air flow rates. Brass valve for pipelines and pressure vessels that need to release a lot of air.

  • 1/2″ to 2″ thread
  • set pressure 0.2 to 30 bar depending on size
  • temperature −40 to +200 °C
View valve
HEROSE safety valve for steam and water

Steam and water: 6380, 6395 and 6370

Steam lines and pressure vessels. Bronze valves 6380 and 6395 for saturated steam, and the 6370 gunmetal valve for water, oil and diesel.

  • 6380: steam up to +185 °C, 1 to 16 bar
  • 6395: steam up to +225 °C, metal seat
  • 6370: water, oil and diesel, 1 to 16 bar
View valve
HEROSE 6383 stainless steel safety valve

Stainless steel for cryogenic gases

Types 6383, 06012 and 06016. Stainless steel valves for air gases, vapours and liquefied cryogenic gases including LNG.

  • work from as low as −196 °C
  • set pressure up to 55 bar
  • 1/4″ to 1 1/2″ thread
View valve
HEROSE 6121 cast iron flanged safety valve

Flanged 6121 and 6127

Large bores and flow rates. The cast iron 6121 for non-aggressive media and the stainless 6127 also for aggressive media and cryogenics.

  • 6121: DN15 to DN100, 0.2 to 16 bar
  • 6127: DN20 to DN80, 0.2 to 40 bar
  • flanges to EN 1092-1
View valve

Not sure which type to choose? The safety valves category gives an overview of types, media and certifications and answers common questions.

How to choose a safety valve

HEROSE safety valves side by side

Type, medium, material, connection, set pressure and temperature
TypeMediumMaterialConnectionSet pressureTemperature
06C02compressed air, inert gasesbrass or stainless steel1/4″ to 1″0.2–50 bar−20 to +160 °C
6217compressed air, inert gasesbrass1/2″ to 2″0.2–30 bar−40 to +200 °C
6380saturated steam, nitrogenbronze1/2″ to 2″1–16 bar−10 to +185 °C
6395saturated steambronze1/2″ to 1 1/4″0.5–25 bar−10 to +225 °C
6370water, oil, dieselgunmetal1/2″ to 2″1–16 bar−10 to +110 °C
6383air, inert and cryogenic gasesstainless steel1/2″ to 1 1/2″2–50 bar−196 to +185 °C
06012 and 06016air gases and cryogenic gases, LNGstainless steel1/4″ to 1/2″1–55 bar−196 to +150 °C
6121air, water, steam, oilcast ironflange DN15 to DN1000.2–16 bar−10 to +200 °C
6127also aggressive media, cryogenicsstainless steelflange DN20 to DN800.2–40 bar−196 to +300 °C

The set pressure range depends on the valve size. Exact values and the flow table are on the page of each valve.

How to choose a safety valve

1. Medium and temperature

Air, steam, water or a cryogenic gas? Choose the type and material by medium and temperature: brass, bronze, cast iron or stainless steel.

2. Set pressure

The valve is set to the pressure at which it opens. It must be above the compressor cut-out pressure and must not exceed the maximum allowable pressure of the vessel.

3. Flow and connection

The valve must release more than the compressor or other source delivers. The capacity for each set pressure is in the flow table on the valve page.

4. Order with the pressure

State the required set pressure with your order. We set the valve in 0.1 bar steps, seal it and enclose the setting report.

Frequently asked questions

Are the valves delivered pre-set?
Yes. We deliver HEROSE safety valves only set to the required pressure in 0.1 bar steps, sealed and with a setting report. Please state the pressure with your order.
What is the difference between the 06C02 and the 6217?
The 06C02 is a compact valve with open discharge for compressors and smaller vessels, with threads up to 1″. The 6217 is a full-lift valve with threads up to 2″ that releases more air, so it suits pipelines and large vessels.
Which valve for steam?
For saturated steam there are the bronze valves 6380 up to +185 °C and 6395 up to +225 °C. The 6370 gunmetal valve is intended for water, oil and diesel.
What certifications do the valves have?
The valves comply with the Pressure Equipment Directive (PED) and have TÜV type approvals, for example TÜV-SV.1090 for the 06C02 or TÜV-SV.1048 for the stainless 06012 and 06016. The manufacturer is ISO 9001 certified.
How much air does a valve release?
It depends on the size and set pressure. For example, the 06C02 1″ releases 1,261 Nm³/h of air at 10 bar. The flow table for all pressures is on the page of each valve.
Where does the HEROSE brand come from?
The company has been making valves since 1873, at first for shipbuilding. Industrial valves followed in 1921 under the name HERO Armaturen in Bad Oldesloe. The name HEROSE was created after 1947 through the merger with the Hamburg company TH. ROSE.

Every valve comes with a setting report. For the 06C02 series, a type sheet, operating instructions and a declaration of conformity in Czech are available for download; for the other types, catalogue sheets.

Manufacturing company : HEROSE GmbH
Address : Elly-Heuss-Knapp-Straße 12, 23843 Bad Oldesloe, Germany
E-mail : info@herose.com