MPI Morheat offers exact replacements for Dynisco BP420 Extruder Rupture Disks (also know as Burst Plugs). MPI STOCKs large quantities of each length in multiple pressure ranges available for same day shipping. To place an order please submit a contact form, give us a call, send us an email, or speak to a sales / support engineer through our livechat. 
Extruder Rupture Disks
DYNISCO# MPI# PRESSURE DESCRIPTION BROCHURE
BP420-1/2-1.5M RP1202-1500 1,500psi 1/2-20 UNF, 1.82" Screwdriver Slot RP1202-1/2-20 UNF
BP420-1/2-2.5M RP1202-2500 2,500psi 1/2-20 UNF, 1.82" Screwdriver Slot RP1202-1/2-20 UNF
BP420-1/2-3.5M RP1202-3500 3,500psi 1/2-20 UNF, 1.82" Screwdriver Slot RP1202-1/2-20 UNF
BP420-1/2-4.5M RP1202-4500 4,500psi 1/2-20 UNF, 1.82" Screwdriver Slot RP1202-1/2-20 UNF
BP420-1/2-5M RP1202-5000 5,000psi 1/2-20 UNF, 1.82" Screwdriver Slot RP1202-1/2-20 UNF
BP420-1/2-5.5M RP1202-5500 5,500psi 1/2-20 UNF, 1.82" Screwdriver Slot RP1202-1/2-20 UNF
BP420-1/2-6.5M RP1202-6500 6,500psi 1/2-20 UNF, 1.82" Screwdriver Slot RP1202-1/2-20 UNF
BP420-1/2-7.5M RP1202-7500 7,500psi 1/2-20 UNF, 1.82" Screwdriver Slot RP1202-1/2-20 UNF
BP420-1/2-8.5M RP1202-8500 8,500psi 1/2-20 UNF, 1.82" Screwdriver Slot RP1202-1/2-20 UNF
BP420-1/2-9.5M RP1202-9500 9,500psi 1/2-20 UNF, 1.82" Screwdriver Slot RP1202-1/2-20 UNF
BP420-1/2-10M RP1202-10000 10,000psi 1/2-20 UNF, 1.82" Screwdriver Slot RP1202-1/2-20 UNF
BP420-1/2-1.5M-3 RP1203-1500 1,500psi 1/2-20 UNF, 3"+HEX RP12-1/2-20 UNF
BP420-1/2-2.5M-3 RP1203-2500 2,500psi 1/2-20 UNF, 3"+HEX RP12-1/2-20 UNF
BP420-1/2-3.5M-3 RP1203-3500 3,500psi 1/2-20 UNF, 3"+HEX RP12-1/2-20 UNF
BP420-1/2-4.5M-3 RP1203-4500 4,500psi 1/2-20 UNF, 3"+HEX RP12-1/2-20 UNF
BP420-1/2-5M-3 RP1203-5000 5,000psi 1/2-20 UNF, 3"+HEX RP12-1/2-20 UNF
BP420-1/2-5.5M-3 RP1203-5500 5,500psi 1/2-20 UNF, 3"+HEX RP12-1/2-20 UNF
BP420-1/2-6.5M-3 RP1203-6500 6,500psi 1/2-20 UNF, 3"+HEX RP12-1/2-20 UNF
BP420-1/2-7.5M-3 RP1203-7500 7,500psi 1/2-20 UNF, 3"+HEX RP12-1/2-20 UNF
BP420-1/2-8.5M-3 RP1203-8500 8,500psi 1/2-20 UNF, 3"+HEX RP12-1/2-20 UNF
BP420-1/2-9.5M-3 RP1203-9500 9,500psi 1/2-20 UNF, 3"+HEX RP12-1/2-20 UNF
BP420-1/2-10M-3 RP1203-10000 10,000psi 1/2-20 UNF, 3"+HEX RP12-1/2-20 UNF
BP420-1/2-1.5M-6 RP1206-1500 1,500psi 1/2-20 UNF, 6"+HEX RP12-1/2-20 UNF
BP420-1/2-2.5M-6 RP1206-2500 2,500psi 1/2-20 UNF, 6"+HEX RP12-1/2-20 UNF
BP420-1/2-3.5M-6 RP1206-3500 3,500psi 1/2-20 UNF, 6"+HEX RP12-1/2-20 UNF
BP420-1/2-4.5M-6 RP1206-4500 4,500psi 1/2-20 UNF, 6"+HEX RP12-1/2-20 UNF
BP420-1/2-5M-6 RP1206-5000 5,000psi 1/2-20 UNF, 6"+HEX RP12-1/2-20 UNF
BP420-1/2-5.5M-6 RP1206-5500 5,500psi 1/2-20 UNF, 6"+HEX RP12-1/2-20 UNF
BP420-1/2-6.5M-6 RP1206-6500 6,500psi 1/2-20 UNF, 6"+HEX RP12-1/2-20 UNF
BP420-1/2-7.5M-6 RP1206-7500 7,500psi 1/2-20 UNF, 6"+HEX RP12-1/2-20 UNF
BP420-1/2-8.5M-6 RP1206-8500 8,500psi 1/2-20 UNF, 6"+HEX RP12-1/2-20 UNF
BP420-1/2-9.5M-6 RP1206-9500 9,500psi 1/2-20 UNF, 6"+HEX RP12-1/2-20 UNF
BP420-1/2-10M-6 RP1206-10000 10,000psi 1/2-20 UNF, 6"+HEX RP12-1/2-20 UNF
BP420-1/2-1.5M-12 RP1212-1500 1,500psi 1/2-20 UNF, 12"+HEX RP12-1/2-20 UNF
BP420-1/2-2.5M-12 RP1212-2500 2,500psi 1/2-20 UNF, 12"+HEX RP12-1/2-20 UNF
BP420-1/2-3.5M-12 RP1212-3500 3,500psi 1/2-20 UNF, 12"+HEX RP12-1/2-20 UNF
BP420-1/2-4.5M-12 RP1212-4500 4,500psi 1/2-20 UNF, 12"+HEX RP12-1/2-20 UNF
BP420-1/2-5M-12 RP1212-5000 5,000psi 1/2-20 UNF, 12"+HEX RP12-1/2-20 UNF
BP420-1/2-5.5M-12 RP1212-5500 5,500psi 1/2-20 UNF, 12"+HEX RP12-1/2-20 UNF
BP420-1/2-6.5M-12 RP1212-6500 6,500psi 1/2-20 UNF, 12"+HEX RP12-1/2-20 UNF
BP420-1/2-7.5M-12 RP1212-7500 7,500psi 1/2-20 UNF, 12"+HEX RP12-1/2-20 UNF
BP420-1/2-8.5M-12 RP1212-8500 8,500psi 1/2-20 UNF, 12"+HEX RP12-1/2-20 UNF
BP420-1/2-9.5M-12 RP1212-9500 9,500psi 1/2-20 UNF, 12"+HEX RP12-1/2-20 UNF
BP420-1/2-10M-12 RP1212-10000 10,000psi 1/2-20 UNF, 12"+HEX RP12-1/2-20 UNF

 

BP420-5/8 SERIES

DYNISCO# MPI# PRESSURE DESCRIPTION BROCHURE
BP420-5/8-8.5M-6 RP5806H-5000 5,000psi 5/8"-11UNC, 6", Hex RP58-5/8-11 UNC
BP420-5/8-7.5M-6 RP5806H-7500 7,500psi 5/8"-11UNC, 6", Hex RP58-5/8-11 UNC
BP420-5/8-9M-6 RP5806H-9000 9,000psi 5/8"-11UNC, 6", Hex RP58-5/8-11 UNC
BP420-5/8-9.5M-6 RP5806H-9500 9,500psi 5/8"-11UNC, 6", Hex RP58-5/8-11 UNC
BP420-5/8-10M-6 RP5806H-10000 10,000psi 5/8"-11UNC, 6", Hex RP58-5/8-11 UNC
BP420-5/8-5M-7 RP5807-5000 5,000psi 5/8"-11UNC, 7", Wrench Slots RP58-5/8-11 UNC
BP420-5/8-7.5M-7 RP5807-7500 7,500psi 5/8"-11UNC, 7", Wrench Slots RP58-5/8-11 UNC
BP420-5/8-9M-7 RP5807-9000 9,000psi 5/8"-11UNC, 7", Wrench Slots RP58-5/8-11 UNC
BP420-5/8-9.5M-7 RP5807-9500 9,500psi 5/8"-11UNC, 7", Wrench Slots RP58-5/8-11 UNC
BP420-5/8-10M-7 RP5807-10000 10,000psi 5/8"-11UNC, 7", Wrench Slots RP58-5/8-11 UNC
BP420-5/8-5M-9 RP5809-5000 5,000psi 5/8"-11UNC, 9", Wrench Slots RP58-5/8-11 UNC
BP420-5/8-7.5M-7 RP5809-7500 7,500psi 5/8"-11UNC, 9", Wrench Slots RP58-5/8-11 UNC
BP420-5/8-9M-7 RP5809-9000 9,000psi 5/8"-11UNC, 9", Wrench Slots RP58-5/8-11 UNC
BP420-5/8-9.5M-7 RP5809-9500 9,500psi 5/8"-11UNC, 9", Wrench Slots RP58-5/8-11 UNC
BP420-5/8-10M-7 RP5809-10000 10,000psi 5/8"-11UNC, 9", Wrench Slots RP58-5/8-11 UNC

 

BP420 3/4S SERIES

DYNISCO# MPI# PRESSURE DESCRIPTION BROCHURE
BP420-3/4S-5M-4 RP345R-5000 5,000psi 3/4" 16UNF, Short Thread, 4", HEX, 1/2"NPT-Discharge RP34-3/4-16 UNF
BP420-3/4S-7.5M-4 RP345R-7500 7,500psi 3/4" 16UNF, Short Thread, 4", HEX, 1/2"NPT-Discharge RP34-3/4-16 UNF
BP420-3/4S-9M-4 RP345R-9000 9,000psi 3/4" 16UNF, Short Thread, 4", HEX, 1/2"NPT-Discharge RP34-3/4-16 UNF
BP420-3/4S-10M-4 RP345R-10000 10,000psi 3/4" 16UNF, Short Thread, 4", HEX, 1/2"NPT-Discharge RP34-3/4-16 UNF
BP420-3/4S-5M-8 RP349R-5000 5,000psi 3/4" 16UNF, Short Thread, 7.9", HEX, 1/2"NPT-Discharge RP34-3/4-16 UNF
BP420-3/4S-7.5M-8 RP349R-7500 7,500psi 3/4" 16UNF, Short Thread, 7.9", HEX, 1/2"NPT-Discharge RP34-3/4-16 UNF
BP420-3/4S-9M-8 RP349R-9000 9,000psi 3/4" 16UNF, Short Thread, 7.9", HEX, 1/2"NPT-Discharge RP34-3/4-16 UNF
BP420-3/4S-10M-8 RP349R-10000 10,000psi 3/4" 16UNF, Short Thread, 7.9", HEX, 1/2"NPT-Discharge RP34-3/4-16 UNF
BP420-3/4S-12.5M-8 RP349R-12500 12,500psi 3/4" 16UNF, Short Thread, 7.9", HEX, 1/2"NPT-Discharge RP34-3/4-16 UNF

 

BP420-3/4F SERIES

DYNISCO# MPI# PRESSURE DESCRIPTION BROCHURE
BP420-3/4F-5M-4 RP345-5000 5,000psi 3/4" 16UNF, Long Thread, 4", HEX, 1/2"NPT-Discharge RP34-3/4-16 UNF
BP420-3/4F-7.5M-4 RP345-7500 7,500psi 3/4" 16UNF, Long Thread, 4", HEX, 1/2"NPT-Discharge RP34-3/4-16 UNF
BP420-3/4F-9M-4 RP345-9000 9,000psi 3/4" 16UNF, Long Thread, 4", HEX, 1/2"NPT-Discharge RP34-3/4-16 UNF
BP420-3/4F-10M-4 RP345-10000 10,000psi 3/4" 16UNF, Long Thread, 4", HEX, 1/2"NPT-Discharge RP34-3/4-16 UNF
BP420-3/4F-12.5M-4 RP345-12500 12,500psi 3/4" 16UNF, Long Thread, 4", HEX, 1/2"NPT-Discharge RP34-3/4-16 UNF
BP420-3/4F-5M-8 RP349-5000 5,000psi 3/4" 16UNF, Long Thread, 7.9", HEX, 1/2"NPT-Discharge RP34-3/4-16 UNF
BP420-3/4F-7.5M-8 RP349-7500 7,500psi 3/4" 16UNF, Long Thread, 7.9", HEX, 1/2"NPT-Discharge RP34-3/4-16 UNF
BP420-3/4F-9M-8 RP349-9000 9,000psi 3/4" 16UNF, Long Thread, 7.9", HEX, 1/2"NPT-Discharge RP34-3/4-16 UNF
BP420-3/4F-10M-8 RP349-10000 10,000psi 3/4" 16UNF, Long Thread, 7.9", HEX, 1/2"NPT-Discharge RP34-3/4-16 UNF
BP420-3/4F-12.5M-8 RP349-12500 12,500psi 3/4" 16UNF, Long Thread, 7.9", HEX, 1/2"NPT-Discharge RP34-3/4-16 UNF