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SAFETY DATA

FAILURE TO DISCONNECT AND
LOCKOUT ELECTRICAL POWER
BEFORE ATTEMPTING MAINTENANCE
CAN CAUSE SHOCK, BURNS OR
DEATH.

Hazardous voltage.
Can shock, burn 
or cause death.

Hazardous

machinery can

cause serious

personal injury.

FAILURE TO DISCONNECT AND
LOCKOUT ELECTRICAL POWER
BEFORE ATTEMPTING MAINTENANCE
CAN CAUSE SERIOUS PERSONAL
INJURY OR DEATH.

Hazardous or toxic
fluids can cause
serious injury.

IF PUMPING HAZARDOUS FLUIDS
SYSTEM MUST BE FLUSHED AND
DECONTAMINATED, INSIDE AND OUT,
PRIOR TO PERFORMING SERVICE OR
MAINTENANCE.

NOTICE:

THIS PUMP SHALL BE INSTALLED IN ACCORDANCE
WITH THE REQUIREMENTS OF NFPA 58 AND ALL
APPLICABLE LOCAL, STATE AND NATIONAL
REGULATIONS.

DO NOT ATTEMPT TO OPEN THE PUMP
UNTIL YOU HAVE BLED OFF THE
PRESSURE.  ON SYSTEMS WITH
METERS, THE DIFFERENTIAL VALVE
WILL KEEP LIQUID UNDER PRESSURE
IN THE PUMP, METER AND PIPING
EVEN WHEN THE HOSE IS EMPTIED.

Hazardous pressure
can cause personal
injury or property
damage.

PUMP DATA

Hazardous voltage.
Can shock, burn 
or cause death.

Install, ground and wire to local and
National Electrical Code requirements.

Install an all-leg disconnect switch near
the unit motor.

Disconnect and lockout electrical power
before installation or service.

Electrical supply MUST match motor nameplate
specifications.

Motors equipped with thermal protection automatically
disconnect motor electrical circuit when overload exists.
Motor can start unexpectedly and without warning.

NOTICE:

BLACKMER LP-GAS PUMPS MUST ONLY BE
INSTALLED IN SYSTEMS DESIGNED BY QUALIFIED
ENGINEERING PERSONNEL.  SYSTEM DESIGN MUST
CONFORM WITH ALL APPLICABLE REGULATIONS
AND CODES AND PROVIDE WARNING OF ALL
SYSTEM HAZARDS.

2

FAILURE TO RELIEVE SYSTEM
PRESSURE PRIOR TO PERFORMING
PUMP SERVICE OR MAINTENANCE
CAN CAUSE PERSONAL INJURY OR
PROPERTY DAMAGE.

Hazardous pressure
can cause personal
injury or property
damage.

DISCONNECTING FLUID OR
PRESSURE CONTAINMENT
COMPONENTS DURING PUMP
OPERATION CAN CAUSE SERIOUS
PERSONAL INJURY, DEATH OR MAJOR
PROPERTY DAMAGE.

Hazardous pressure
can cause 
personal injury or
property damage.

TECHNICAL DATA

Maximum Pump Speed

1750 RPM

Maximum Temperature

240

o

F (115

o

C)

Maximum Differential Pressure

150 psi (10.3 bar)

Maximum Working Pressure

350 psi (24.1 bar)

(Inlet Pr Differential Pressure)

Model No.

Serial No.

Date of Installation:

Inlet Gauge Reading:

Discharge Gauge Reading:

Flow Rate:

INITIAL START UP INFORMATION

NOTE:

These pumps are listed by Underwriters’

Laboratories for liquefied petroleum gas and NH3 service.

INSTALLATION

Summary of Contents for LGL1.25

Page 1: ...safety standards This manual is intended to assist in the installation and operation of the Blackmer liquefied gas pumps and MUST be kept with the pump Blackmer liquefied gas pump service shall be per...

Page 2: ...and lockout electrical power before installation or service Electrical supply MUST match motor nameplate specifications Motors equipped with thermal protection automatically disconnect motor electric...

Page 3: ...ndards See Figure 1 A solid foundation will reduce system noise and vibration and will improve pump performance Refer to ANSI HI standards or a suitable pump handbook for information on typical pump m...

Page 4: ...charge valve still closed momentarily close the manual shut off valve in the bypass return line to check the pump relief valve The pressure should be at least 25 psi 1 7 bar higher than the maximum sy...

Page 5: ...G THE APPROPRIATE PROCEDURES AND WARNINGS AS PRESENTED IN THIS MANUAL 1 Drain and relieve pressure from the pump and system as required 2 Remove the head assembly from the outboard non driven side of...

Page 6: ...from the liner Reassemble the OUTBOARD side of the pump first 1 Align the liner keyway with the setscrew 74 that extends down into the pump casing 12 and start the liner 41 into the casing The word I...

Page 7: ...a broken lockwasher tang Loose locknuts will allow the rotor to shift against the discs 71 causing wear See Figure 6 a On both ends of the pump shaft install a lockwasher 24B with the tangs facing ou...

Page 8: ...gnment of pump reducer or motor 5 Bearings worn or damaged 6 Vibration from improperly anchored piping 7 Bent shaft or drive coupling misaligned 8 Excessively worn rotor 9 Malfunctioning valve in the...

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