Large 1/4” NPT Injector

Expected early summer 2019
Updated 6/7/2019

The Standard Injector has an impressive output for its size, but for some boilers, it’s still just not quite enough.

To accommodate the larger boilers on 3.75” scale engines, stationary engines, and traction engines, Eccentric Engineer is proud to offer the Large Injector. It comes with 1/4” NPT threaded male fittings on all connections, and optional solder fittings for 3/8” tubing.

As always, these will be lifting / restarting injectors.

Operating range: 50 - 200psi

Capacity: 8 pints per minute (60gal/hr)

OR 6.5 pints per minute (49 gal/hr)


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