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NTG40 

How It Works - Pump™

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1. Air Chamber

The air chamber is the chamber that houses 
the air which powers the diaphragms.

2. Air Distribution System

The air distribution system is the heart of 
the pump. The air distribution system is the 
mechanism that shifts the pump in order to 
create suction and discharge strokes.

3. Lock Nut (Outer Diaphragm Piston)

The outer diaphragm pistons provide a 
means to connect the diaphragms to the 
reciprocating common shaft and to seal the 
liquid side from the air side of the diaphragm.

4. Holding plate (Inner Diaphragm Piston)

The inner piston is located on the air side of 
the pump and does not come into contact 
with the process fluid.

5. Check Valve Ball

NOMAD air-operated pumps use suction and 
discharge check valves to produce directional 
flow of process fluid in the liquid chamber. 
The check valve balls seal and release on the 
check valve seats allowing for discharge and 
suction of process fluid to occur.

6. Check Valve 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.

8. Liquid Chamber

The liquid chamber is filled with the process 
fluid during the suction stroke and is emptied 
during the discharge stroke. It is separated 
from the compressed air by the diaphragms.

9. Diaphragm

The diaphragm membrane provides for 
separation of the process fluid and the 
compressed air power source. To perform 
adequately, diaphragms should be of 
sufficient thickness and of appropriate 
material to prevent degradation or permeation 
in specific process fluid applications. NOMAD 
offers a variety of diaphragm materials for 
your specific application requirements.

10. Inlet Manifold

Process fluid enters the pump from the intake 
port located on the inlet manifold at the 
bottom of the pump.

The NOMAD diaphragm pump is an air-operated, positive displacement, self-priming pump.  These drawings show flow pattern through the pump 
upon its initial stroke.  It is assumed the pump has no fluid in it prior to its initial stroke.

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Summary of Contents for NTG40 TRANS-FLO

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

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

Page 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...

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

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

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