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6

Note: In the event of a power 
failure, the shutoff valve should 
be closed, if the restarting of 
the pump is not desirable once 
power is regained. 

TROUBLESHOOTING 

NTG40 

NOMAD TRANS-FLO™

Pump will not run or runs slowly.

1. Check air inlet screen and air filter for debris.
2.  Check for sticking air valve, flush air valve  

in solvent. 

3.  Check for worn out air valve. If piston face in air 

valve is shiny instead of dull, air valve is worn  
beyond working tolerances and must  
be replaced.

4.  Check center block rings. If worn excessively, they 

will not seal and air will simply flow through pump 
and out air exhaust.

5.  Check type of lubricant being used.  

ISO 15-5 wt. recommended. 

Pump runs but little or no product flows. 

1.  Check for pump cavitation; slow pump speed 

down to match thickness of material being 
pumped.

2.  Check for sticking ball valves. If material being 

pumped is not compatible with pump elastomers, 
swelling may occur. 

3.  Make sure all suction connections are  

air tight.

Pump air valve freezes.

Check for excessive moisture in compressed air. 

Air bubbles in pump discharge.

1. Check for ruptured diaphragm.
2.  Check for tightness for clamp bands,  

especially at intake manifold. 

Product comes out air exhaust.

1. Check for diaphragm rupture.
2. Check tightness of piston plates to shaft.

Pump rattles.

Create false discharge head or suction lift.

SUGGESTED INSTALLATION

Содержание NTG40 TRANS-FLO

Страница 1: ...NTG40 NOMAD TRANS FLO O P E R A T I O N M A N U A L AIR OPERATED DOUBLE DIAPHRAGM PUMPS A JDA Global Company ALUMINUM Models DUCTILE IRON Models 316 STAINLESS STEEL Models...

Страница 2: ...e for all applications The information provided is the best thinking available regarding chemical compatibility The guide however does not provide a recommendation 2 Always wear safety glasses during...

Страница 3: ...FI P Polypropylene P Polypropylene TGN Garlock NEOBACKED K Kynar 5 CenterBlock TGE Garlock EPDMBACKED PU Polyurethane A Aluminum TGV Garlock VitonBACKED MTF MildSteel P Polypropylene PU Polyurethane 1...

Страница 4: ...alve Seat The removable seats provide the ball valves a site to check 7 Discharge Manifold Process fluid exits the pump from the discharge port located on the discharge manifold at the top of the pump...

Страница 5: ...ulated at 4 8 bar 70 psig air inlet pressure against a 2 bar 30 psig head pressure Example To pump 113 6 lpm 30 gpm against a discharge pressure head of 2 7 bar 40 psig requires 4 1 bar 60 psig and 25...

Страница 6: ...ications involving flooded suction or suction head pressures a gate valve should be installed in the suction line to permit closing of the line for pump service The NTG40 can be used in submersible ap...

Страница 7: ...h pump and out air exhaust 5 Check type of lubricant being used ISO 15 5 wt recommended Pump runs but little or no product flows 1 Check for pump cavitation slow pump speed down to match thickness of...

Страница 8: ...7 EXPLODED VIEW RUBBER DIAPHRAGMS NTG40 NOMAD TRANS FLO EXPLODED VIEW PTFE DIAPHRAGMS...

Страница 9: ...04 5000 03 N04 5000 02 22 Clamp Band Large 2 N04 7330 08 N04 7330 03 N04 7330 08 23 Clamp Band Small 4 N04 7100 08 N04 7100 03 N04 7100 08 24 Discharge Manifold 1 N04 5021 01 N04 5021 03 N04 5021 02 2...

Страница 10: ...NTG40 RUBBER FITTED NTG40 NOMAD TRANS FLO 9...

Страница 11: ...08 N04 7330 03 N04 7330 08 23 Clamp Band Small 4 N04 7100 08 N04 7100 03 N04 7100 08 24 Discharge Manifold 1 N04 5021 01 N04 5021 03 N04 5021 02 25 Inlet Manifold 1 N04 5080 01 N04 5080 03 N04 5080 0...

Страница 12: ...NTG40 NOMAD TRANS FLO NTG40 PTFE FITTED 11...

Страница 13: ...1645 W Park Ave Suite 200 Redlands CA USA 92373 909 798 9532 A JDA Global Company...

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