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BP420 series

Dynisco BP420 rupture discs, designed for plastics extrusion systems, provide reliable emergency pressure relief. This model activates at a specific set pressure and temperature, at which its one-piece 304 stainless steel assembly with a welded Inconel burst disc ruptures instantly.

Dynisco

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BP420 series

BP420-1/2-1.5M-1.81

Order code: 901027 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 1500 psi
  • Rupture disc length: 4.6 cm
BP420 series

BP420-1/2-1.5M-3

Order code: 902170 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 1500 psi
  • Rupture disc length: 7.6 cm
BP420 series

BP420-1/2-1.5M-6

Order code: 901051 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 1500 psi
  • Rupture disc length: 15 cm
BP420 series

BP420-1/2-10M-1.81

Order code: 901236 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 10,000 psi
  • Rupture disc length: 4.6 cm
BP420 series

BP420-1/2-10M-3

Order code: 901694 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 10,000 psi
  • Rupture disc length: 7.6 cm
BP420 series

BP420-1/2-10M-4

Order code: 901292 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 10,000 psi
  • Rupture disc length: 10.2 cm
BP420 series

BP420-1/2-10M-6

Order code: 901247 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 10,000 psi
  • Rupture disc length: 15 cm
BP420 series

BP420-1/2-10M-6-1/2NPT

Order code: 902949 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 10,000 psi
  • Rupture disc length: 15 cm
BP420 series

BP420-1/2-12.5M-1.81

Order code: 901011 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 12,500 psi
  • Rupture disc length: 4.6 cm
BP420 series

BP420-1/2-12.5M-4

Order code: 902070 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 12,500 psi
  • Rupture disc length: 10.2 cm
BP420 series

BP420-1/2-12.5M-6

Order code: 901017 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 12,500 psi
  • Rupture disc length: 15 cm
BP420 series

BP420-1/2-12.5M-6-1/4NPT

Order code: 901298 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 12,500 psi
  • Rupture disc length: 15 cm
BP420 series

BP420-1/2-15M-1.81

Order code: 901697 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 15,000 psi
  • Rupture disc length: 4.6 cm
BP420 series

BP420-1/2-15M-3

Order code: 902344 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 15,000 psi
  • Rupture disc length: 7.6 cm
BP420 series

BP420-1/2-15M-4

Order code: 902199 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 15,000 psi
  • Rupture disc length: 10.2 cm
BP420 series

BP420-1/2-15M-6

Order code: 901018 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 15,000 psi
  • Rupture disc length: 15 cm
BP420 series

BP420-1/2-15M-9

Order code: 902955 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 15,000 psi
  • Rupture disc length: 23.0 cm
BP420 series

BP420-1/2-1M-1.81

Order code: 902698 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 1000 psi
  • Rupture disc length: 4.6 cm
BP420 series

BP420-1/2-1M-3

Order code: 902699 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 1000 psi
  • Rupture disc length: 7.6 cm
BP420 series

BP420-1/2-1M-4

Order code: 902544 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 1000 psi
  • Rupture disc length: 10.2 cm
BP420 series

BP420-1/2-1M-6

Order code: 901531 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 1000 psi
  • Rupture disc length: 15 cm
BP420 series

BP420-1/2-2.5CB-4

Order code: 902908 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 2500 psi
  • Rupture disc length: 6.4 cm
BP420 series

BP420-1/2-2.5M-1.81

Order code: 901010 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 2500 psi
  • Rupture disc length: 4.6 cm
BP420 series

BP420-1/2-2.5M-4

Order code: 902260 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 2500 psi
  • Rupture disc length: 6.4 cm
BP420 series

BP420-1/2-2.5M-6

Order code: 901016 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 2500 psi
  • Rupture disc length: 6.4 cm
BP420 series

BP420-1/2-2M-1.81

Order code: 901028 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 2000 psi
  • Rupture disc length: 4.6 cm
BP420 series

BP420-1/2-2M-3

Order code: 902059 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 2000 psi
  • Rupture disc length: 7.6 cm
BP420 series

BP420-1/2-2M-4

Order code: 902400 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 2000 psi
  • Rupture disc length: 10.2 cm
BP420 series

BP420-1/2-2M-6

Order code: 901019 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 2000 psi
  • Rupture disc length: 15 cm
BP420 series

BP420-1/2-2M-9

Order code: 902508 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 2000 psi
  • Rupture disc length: 23.0 cm
BP420 series

BP420-1/2-3.5M-1.81

Order code: 901000 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 3500 psi
  • Rupture disc length: 4.6 cm
BP420 series

BP420-1/2-3.5M-12

Order code: 902962 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 3500 psi
  • Rupture disc length: 7.6 cm
BP420 series

BP420-1/2-3.5M-4

Order code: 901663 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 3500 psi
  • Rupture disc length: 7.6 cm
BP420 series

BP420-1/2-3.5M-6

Order code: 901005 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 3500 psi
  • Rupture disc length: 7.6 cm
BP420 series

BP420-1/2-3.5M-9

Order code: 902247 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 3500 psi
  • Rupture disc length: 7.6 cm
BP420 series

BP420-1/2-3M-1.81

Order code: 901012 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 3000 psi
  • Rupture disc length: 4.6 cm
BP420 series

BP420-1/2-3M-2.5

Order code: 902814 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 3000 psi
  • Rupture disc length: 6.4 cm
BP420 series

BP420-1/2-3M-3

Order code: 902138 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 3000 psi
  • Rupture disc length: 7.6 cm
BP420 series

BP420-1/2-3M-4

Order code: 900827 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 3000 psi
  • Rupture disc length: 7.6 cm
BP420 series

BP420-1/2-3M-6

Order code: 901643 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 3000 psi
  • Rupture disc length: 7.6 cm
BP420 series

BP420-1/2-3M-7

Order code: 902193 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 3000 psi
  • Rupture disc length: 7.6 cm
BP420 series

BP420-1/2-4.5CB-4

Order code: 902907 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 4500 psi
  • Rupture disc length: 10.2 cm
BP420 series

BP420-1/2-4.5M-1.81

Order code: 901014 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 4500 psi
  • Rupture disc length: 4.6 cm
BP420 series

BP420-1/2-4.5M-2.5

Order code: 902795 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 4500 psi
  • Rupture disc length: 6.4 cm
BP420 series

BP420-1/2-4.5M-3

Order code: 901242 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 4500 psi
  • Rupture disc length: 7.6 cm
BP420 series

BP420-1/2-4.5M-6

Order code: 901052 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 4500 psi
  • Rupture disc length: 10.2 cm
BP420 series

BP420-1/2-4M-1.81

Order code: 901013 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 4000 psi
  • Rupture disc length: 4.6 cm
BP420 series

BP420-1/2-4M-4

Order code: 901682 · Dynisco
  • Process connection: 1/2-20UNF
  • Pressure range: 4000 psi
  • Rupture disc length: 10.2 cm