This 1-inch motor speed pump has long been
popular for cylinder filling, small volume
motor fueling and supplying small vaporizers.
It offers the same heavy-duty construction
of larger Blackmer models and is available
in two mounting styles and capacity ranges.
The LGB1 model is equipped with a coupling
and bracket for mounting to a conventional
base. The LGB1 model will handle up to 10
U.S. gpm (38 lpm). The LGB1P model offers
50% greater capacity and will handle up
to 15 U.S. gpm (57 lpm).
This model has a 1-inch NPT tapped ports
and use an exclusive "combination"
valve that acts as both a back-to-tank bypass
valve and as an internal safety relief valve.
This feature lowers installation costs by
eliminating the need for a separate bypass
valve. It also assures pressure relief if
the back-to-tank bypass line is closed..
Standard construction materials for this
model includes Buna-N mechanical seals and
Duravanes for handling both LP-gas and anhydrous
ammonia. Optional viton fitted mechanical
seals and laminate vanes are also available.
Maximum differential pressure is 126 psi
(862 kPa) for both models.