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    Home / Valves and automation / Safety valves; settings including certification / Relief valves 6121; flanged cast iron

    Safety valves 6121 in flanged cast iron design

    Pojistný ventil 6121 v přírubovém provedení z litiny
    • oversized relief valves for releasing the medium from the pipeline in case of excessive pressure load
    • delivery including setting protocol; the safety valve is delivered set to the required pressure and sealed
    • angled design with flanges according to EN 1092-1 PN16
    • designed for air and other non-aggressive media

    Pressure relief valves 6121 in cast iron
    Pojistný ventil na přírubu z litiny Ordering
    number    		 Connection
    DN    		 Luminosity
    DN    		 Pressure setting
    bar    		 Temperature
    °C    		 Material Seals
    6121.020 DN20 18 0,2-16 -10/+200 cast iron GG25 steel
    6121.025 DN25 18 0,2-16 -10/+200 cast iron GG25 steel
    6121.032 DN32 18 0,2-16 -10/+200 cast iron GG25 steel
    6121.040 DN40 23 0,2-16 -10/+200 cast iron GG25 steel
    6121.050 DN50 29 0,2-16 -10/+200 cast iron GG25 steel
    6121.065 DN65 37 0,2-16 -10/+200 cast iron GG25 steel
    6121.080 DN80 46 0,2-16 -10/+200 cast iron GG25 steel
    6121.100 DN100 60 0,2-16 -10/+200 cast iron GG25 steel
    Please note : We only supply relief valves set to the required pressure in 0.1 bar increments - please specify when ordering

    Relief valve flows 6121
    Opening pressure (bar) 2 4 6 8 10 12 14 16 18 20
    Order number Discharge power in Nm³/h
    6121.020 80 156 217 272 382 493 604 714 825 935
    6121.025 121 206 284 356 501 646 791 936 1081 1225
    6121.032 121 206 284 356 501 646 791 936 1081 1225
    6121.040 197 336 463 582 818 1055 1291 1528 1764 2001
    6121.050 313 534 737 925 1301 1677 2053 2429 2805 3181
    6121.065 510 870 1199 1505 2117 2729 3342 3954 4566 5178
    6121.080 788 1344 1854 2327 3273 4219 5165 6111 7057 8003
    6121.100 1341 2287 3153 3958 5568 7177 8787 10397 12006 13616

    Bestsellers

    ventil pojistny herose 6121 tlak vzduch litina
    Flanged safety valve 6121 - DN100 - 0.2-16 bar
    up to 30 days
    Code: 6121.100.0-5
     
    90 429 Kč
    (74 735 Kč excl. VAT)
    ventil pojistny herose 6121 tlak vzduch litina
    Flanged safety valve 6121 - DN80 - 0.2-16 bar
    up to 30 days
    Code: 6121.080.0-5
     
    61 043 Kč
    (50 449 Kč excl. VAT)
    ventil pojistny herose 6121 tlak vzduch litina
    Flanged safety valve 6121 - DN65 - 0.2-16 bar
    up to 30 days
    Code: 6121.065.0-5
     
    51 092 Kč
    (42 225 Kč excl. VAT)
    ventil pojistny herose 6121 tlak vzduch litina
    Flanged safety valve 6121 - DN50 - 0.2-16 bar
    up to 30 days
    Code: 6121.050.0-5
     
    38 618 Kč
    (31 916 Kč excl. VAT)
    ventil pojistny herose 6121 tlak vzduch litina
    Flanged safety valve 6121 - DN40 - 0.2-16 bar
    up to 30 days
    Code: 6121.040.0-5
     
    35 786 Kč
    (29 575 Kč excl. VAT)
    ventil pojistny herose 6121 tlak vzduch litina
    Flanged safety valve 6121 - DN32 - 0.2-16 bar
    up to 30 days
    Code: 6121.032.0-5
     
    32 297 Kč
    (26 692 Kč excl. VAT)
    ventil pojistny herose 6121 tlak vzduch litina
    Flanged safety valve 6121 - DN25 - 0.2-16 bar
    up to 30 days
    Code: 6121.025.0-5
     
    29 332 Kč
    (24 241 Kč excl. VAT)
    ventil pojistny herose 6121 tlak vzduch litina
    Flanged safety valve 6121 - DN20 - 0.2-16 bar
    up to 30 days
    Code: 6121.020.0-5
     
    28 385 Kč
    (23 459 Kč excl. VAT)
    Show more products
    8 items total
    ventil pojistny herose 6121 tlak vzduch litina
    Flanged safety valve 6121 - DN100 - 0.2-16 bar
    up to 30 days
    74 735 Kč excl. VAT
    90 429 Kč / pcs
    Detail

    Relief valve 6121 with DN100 flange and large dimensions for releasing air and non-aggressive medium from the pipeline in case of excessive pressure. Delivery including protocol...

    Code: 6121.100.0-5
    ventil pojistny herose 6121 tlak vzduch litina
    Flanged safety valve 6121 - DN40 - 0.2-16 bar
    up to 30 days
    29 575 Kč excl. VAT
    35 786 Kč / pcs
    Detail

    Relief valve 6121 with DN40 flange and large dimensions for releasing air and non-aggressive medium from the pipeline in case of excessive pressure. Delivery including protocol...

    Code: 6121.040.0-5
    ventil pojistny herose 6121 tlak vzduch litina
    Flanged safety valve 6121 - DN65 - 0.2-16 bar
    up to 30 days
    42 225 Kč excl. VAT
    51 092 Kč / pcs
    Detail

    Relief valve 6121 with DN65 flange and large dimensions for releasing air and non-aggressive medium from the pipeline in case of excessive pressure. Delivery including protocol...

    Code: 6121.065.0-5
    ventil pojistny herose 6121 tlak vzduch litina
    Flanged safety valve 6121 - DN25 - 0.2-16 bar
    up to 30 days
    24 241 Kč excl. VAT
    29 332 Kč / pcs
    Detail

    Relief valve 6121 with DN25 flange and large dimensions for releasing air and non-aggressive medium from the pipeline in case of excessive pressure. Delivery including protocol...

    Code: 6121.025.0-5
    ventil pojistny herose 6121 tlak vzduch litina
    Flanged safety valve 6121 - DN20 - 0.2-16 bar
    up to 30 days
    23 459 Kč excl. VAT
    28 385 Kč / pcs
    Detail

    Relief valve 6121 with DN20 flange and large dimensions for releasing air and non-aggressive medium from the pipeline in case of excessive pressure. Delivery including protocol...

    Code: 6121.020.0-5
    ventil pojistny herose 6121 tlak vzduch litina
    Flanged safety valve 6121 - DN32 - 0.2-16 bar
    up to 30 days
    26 692 Kč excl. VAT
    32 297 Kč / pcs
    Detail

    Relief valve 6121 with DN32 flange and large dimensions for releasing air and non-aggressive medium from the pipeline in case of excessive pressure. Delivery including protocol...

    Code: 6121.032.0-5
    ventil pojistny herose 6121 tlak vzduch litina
    Flanged safety valve 6121 - DN80 - 0.2-16 bar
    up to 30 days
    50 449 Kč excl. VAT
    61 043 Kč / pcs
    Detail

    Relief valve 6121 with DN80 flange and large dimensions for releasing air and non-aggressive medium from the pipeline in case of excessive pressure. Delivery including protocol...

    Code: 6121.080.0-5
    ventil pojistny herose 6121 tlak vzduch litina
    Flanged safety valve 6121 - DN50 - 0.2-16 bar
    up to 30 days
    31 916 Kč excl. VAT
    38 618 Kč / pcs
    Detail

    Relief valve 6121 with DN50 flange and large dimensions for releasing air and non-aggressive medium from the pipeline in case of excessive pressure. Delivery including protocol...

    Code: 6121.050.0-5