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103-A00    page 2/12 

SAFETY DATA 

 

Failure to disconnect and lockout 

electrical power or engine drive before 

attempting maintenance can cause 

severe personal injury or death 

 

Failure to disconnect and lockout 

electrical power before attempting 

maintenance can cause shock, burns or 

death 

 

Hazardous 

machinery can 

cause serious 

personal injury.

 

 

Hazardous voltage. 

Can shock, burn or 

cause death.

 

 

 

 

 

 

 

If pumping hazardous or toxic fluids, 

system must be flushed and 

decontaminated, inside and out, prior to 

performing service or maintenance 

 

Disconnecting fluid or pressure 

containment components during pump 

operation can cause serious personal 

injury, death or major property damage 

 

 

Hazardous or toxic 

fluids can cause 

serious injury. 

 

Hazardous pressure 

can cause personal 

injury or property 

damage

 

 

 

 

 

 

 

Operation without guards in place can 

cause serious personal injury, major 

property damage, or death. 

 

Failure to relieve system pressure prior 

to performing pump service or 

maintenance can cause personal injury 

or property damage. 

 

 

Do not operate 

without guard in 

place 

 

Hazardous pressure 

can cause personal 

injury or property 

damage 

 

 

 

 

 

 

Failure to stop the pump before 

adjusting the shaft packing can cause 

severe personal injury 

 

 

 

 

 

 

Hazardous 

machinery can 

cause severe 

personal injury

.

 

 

 

 

 

 

 

 

 

PUMP DATA 

PUMP IDENTIFICATION 

A pump Identification tag, containing the pump serial number, I.D. number, and model designation, is attached to each pump.  It is 

recommended that the data from this tag be recorded and filed for future reference. If replacement parts are needed, or if 

information pertaining to the pump is required, this data must be furnished to a Blackmer representative. 

 

TABLE 1 – TECHNICAL DATA 

 

1.5”, 2”, 2.5”, 3” 

4” 

Maximum Pump Speed 

640 RPM 

500 RPM 

Maximum Operating 

Temperature* 

240°F (115°C) 

Maximum Viscosity* 

20,000 SSU (4,250 cP) 

Maximum  

Differential Pressure* 

150 psi (10.3 Bar) 

Maximum  

Working Pressure* 

175 psi (12 Bar) 

 

* Technical Data is for standard materials of construction.  

Consult Blackmer Material Specs for optional materials of 

construction. 
cP = centistokes at fluid specific gravity of 1.0. 

INITIAL PUMP START UP INFORMATION 

Model No.: ____________________________________ 

Serial No.:  ____________________________________ 

ID No.:  _______________________________________ 

Date of Installation: _____________________________ 

Inlet Gauge Reading: ____________________________ 

Discharge Gauge Reading: _______________________ 

Flow Rate: _____________________________________ 

 

 

Summary of Contents for NP1.5B

Page 1: ...NP3 NP4 NPH4 103 A04 103 A05 103 A06 SAFETY DATA This is a SAFETY ALERT SYMBOL When you see this symbol on the product or in the manual look for one of the following signal words and be alert to the...

Page 2: ...ailure to stop the pump before adjusting the shaft packing can cause severe personal injury Hazardous machinery can cause severe personal injury PUMP DATA PUMP IDENTIFICATION A pump Identification tag...

Page 3: ...times the area of the intake piping For viscosities greater than 1 000 SSU 200 cP consult the strainer manufacturer instructions Strainers must be cleaned regularly to avoid pump starvation 4 The int...

Page 4: ...mp driver rotation TO CHANGE PUMP ROTATION To reverse rotation the pump must be disassembled then reassembled with the shaft on the opposite side of the pump See the Maintenance section for instructio...

Page 5: ...arge conditions after pump start up 6 Check the wiring of the motor and briefly turn on the power to make sure that the pump rotates in the direction of the rotation arrow START UP PROCEDURES NOTICE C...

Page 6: ...discharge valve The pump relief valve must be set higher than the system pressure control valve but must not exceed the maximum differential pressure of the pump see table 1 RELIEF VALVE SETTING AND...

Page 7: ...NTENANCE STRAINERS Strainers must be cleaned regularly to avoid pump starvation Schedule will depend upon the application and conditions LUBRICATION NOTICE To avoid possible entanglement in moving par...

Page 8: ...ngs bushings a Using an appropriately sized arbor press remove the old bearing from the head b To aid installation and prevent bearing damage heat the head in an oven at 200oF 93oC before installing t...

Page 9: ...nd uniformly tighten the packing follower stud nuts 18 1 4 turn at a time to reduce leakage b Restart the pump and check the stuffing box temperature several minutes after each adjustment for signs of...

Page 10: ...st for the viscosity or volatility of the liquid c Pump too far from fluid source 2 Running the pump for extended periods with a closed discharge line 3 Misalignment of the pump 4 Baseplate not secure...

Page 11: ...Working Pressure 220 psi 15 17 Bar 195 psi 13 44 Bar LOCATION AND PIPING NOTICE A system pressure control device in addition to the pump relief valve is required OPERATION NOTICE The pump must be tes...

Page 12: ...ess Marine Magnetic Drive Pumps Stainless Steel 14 to 215 GPM Abaque Peristaltic Hose Pumps 0 1 to 210 GPM High Lift Solids Abrasives Reciprocating Gas Compressors Liquefied Gas Transfer B oosting Vap...

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