Sold in packs of 20, the listed price is for a single unit.

The Baker Hughes BP-5S™ primary igniter is a radio-frequency-safe igniter used in wireline pressure setting assemblies (WLPSAs). The BP-5S primary igniter is deployed in Baker Hughes E-4™ #10 and #20 setting tools, and offers temperature resistance for safe and reliable operations.

The BP-5S igniter contains a military-grade resistor, which requires electrical voltage to establish a current strong enough to fire the primary igniter. This reduces the risk of accidental ignition due to radio frequency induced (RFI) currents and other stray currents, and meets API RP67 mandates.

Along with a proven resistor, the crimped design requires less firing current and offers improved reliability compared with outdated models. Baker Hughes conducted extensive testing of the BP-5S igniter to improve reliability when exposed to high frequency vibration. The igniter endured repeated thermal cycling ranging from sub-zero temperatures to 400°F (204°C) and performed consistently when used in horizontal multistage pump-down applications. It exhibited no leakage past the center electrode after initiation at 20,000 psi (1379 bar) and 400°F, reducing HS&E risks and making the BP-5S igniter ideal for a wide range of downhole environments.