1/8 NPT Pipe Unions
1/8'' NPT Pipe Unions

1/8'' NPT Pipe Unions

On this page you will find fuel unions with an 1/8" tapered NPT thread and related materials.

This means that the inlet has an 1/8 inch tapered thread, suitable for a variety of fuel pumps, fuel filters and pressure regulators.

The outlet diameter varies. Please see the individual item description for details.

Please use PTFE tape or Loctite 542 Thread Sealant when (re-)assembling these screw-in couplings in order to properly seal the connection.

1/8'' NPT Pipe Unions

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FPA903/B
6 mm Pipe Union with 1/8 NPT thread

6 mm Pipe Union with 1/8 NPT thread

Straight 6 mm Pipe Union with 1/8th thread.

Union with 1/8" NPT tapered thread for fuel lines with an internal diameter of 6 mm.

Specification:
Inlet: 1/8" tapered NPTF
Outlet: 6 millimeter

Please use our superior quality PTFE tape each time that you (re-)assemble screwed connections in the fuel tract in order to properly seal the connection.
As an alternative, you can use our Loctite 243 Thread Locker which will offer the added properties of protecting your connections from undoing themselves.

We strongly advise you to secure your fuel lines using our stainless steel jubilee clips, despite the barbed edge on these unions.
For your convenience, you can order these clips right along with the union by simply selecting it through the drop-box above.

6 mm Pipe Union with 1/8 NPT thread

30211BOC08
8 mm Pipe Union with 1/8 NPT thread

8 mm Pipe Union with 1/8 NPT thread

Newly arrived 8 mm Pipe Union with 1/8 NPT thread

Straight 8 mm Pipe Union with 1/8th thread.

Union with 1/8" NPT tapered thread for fuel lines with an internal diameter of 8 mm.

Specification:
Inlet: 1/8" tapered NPT
Outlet: 8 millimeter

Please use our superior quality PTFE tape each time that you (re-)assemble screwed connections in the fuel tract in order to properly seal the connection.
As an alternative, you can use our Loctite 243 Thread Locker which will offer the added properties of protecting your connections from undoing themselves.

We strongly advise you to secure your fuel lines using our stainless steel jubilee clips.
For your convenience, you can order these clips right along with the union by simply selecting it through the drop-box above.

8 mm Pipe Union with 1/8 NPT thread

FPA903/C
10 mm Pipe Union with 1/8 NPT thread

10 mm Pipe Union with 1/8 NPT thread

Straight 10 mm Pipe Union with 1/8th thread.

Union with 1/8" NPT tapered thread for fuel lines with an internal diameter of 10 mm.

Specification:
Inlet: 1/8" tapered NPT
Outlet: 10 millimeter

Please use our superior quality PTFE tape each time that you (re-)assemble screwed connections in the fuel tract in order to properly seal the connection.
As an alternative, you can use our Loctite 243 Thread Locker which will offer the added properties of protecting your connections from undoing themselves.

We strongly advise you to secure your fuel lines using our stainless steel jubilee clips.
For your convenience, you can order these clips right along with the union by simply selecting it through the drop-box above.

10 mm Pipe Union with 1/8 NPT thread

FPA9011
Sytec 8 mm Pipe Union 90 Degrees with 1/8 NPTF thread

Sytec 8 mm Pipe Union 90 Degrees with 1/8 NPTF thread

Sytec 8 mm Pipe Union 90 Degrees with 1/8th tapered thread.

Union with 1/8" NPTF tapered thread for fuel lines with an internal diameter of 8 mm.

Specification:
Inlet: 1/8" tapered NPTF
Outlet: 8 millimeter

Please use our superior quality PTFE tape each time that you (re-)assemble screwed connections in the fuel tract in order to properly seal the connection.
As an alternative, you can use our Loctite 542 Thread Sealant which will offer the added properties of protecting your connections from undoing themselves.

We strongly advise you to secure your fuel lines using our stainless steel jubilee clips, despite the barbed edge on these unions.
For your convenience, you can order these clips right along with the union by simply selecting it through the drop-box above.

Sytec 8 mm Pipe Union 90 Degrees with 1/8 NPTF thread

FPA906
1/8'' Screw-On Fuel Pump Filter

1/8'' Screw-On Fuel Pump Filter

This is a special screw-on fuel filter to be used with a variety of electric fuel pumps.

Failure to operate those pumps with a suitable filter like this usually voids the warranty on the pump!

This filter suits, amongst others, the Airtex 6Volt filter and the range of Solid State fuel filters by Facet.

Couplings Specifications:
Connection to pump body: 1/8" NPTF tapered thread
Fuel Union for fuel lines with 8 mm internal diameter

Please use our superior quality PTFE tape each time that you (re-)assemble screwed connections in the fuel tract in order to properly seal the connection.
As an alternative, you can use our Loctite 243 Thread Locker which will offer the added properties of protecting your connections from undoing themselves.

We strongly advise you to secure your fuel lines using our Stainless Steel Jubilee Clips.

1/8'' Screw-On Fuel Pump Filter

RA018
Malpassi Filter King Petrol King 1/8th NPTF Brass Blanking Plug

Malpassi Filter King Petrol King 1/8th NPTF Brass Blanking Plug

Spare, brass, blanking plug for the Malpassi Filter King and Petrol King fuel filters and fuel pressure regulators.

Also fits many other applications such as some manifolds etc with that same 1/8th NPTF tapered thread.

 

 

Malpassi Filter King Petrol King 1/8th NPTF Brass Blanking Plug

FUELGAUGEKIT
Sytec In-Line Fuel Pressure Gauge Kit - 0 - 15 PSI / 0 - 1 Bar

Sytec In-Line Fuel Pressure Gauge Kit - 0 - 15 PSI / 0 - 1 Bar

Sytec In-Line Fuel Pressure Gauge Kit.

A fantastically finished set to build your own in-line fuel pressure monitoring system.

Specifically for, low-pressure carburetor systems.
NOT suited for high-pressure fuel-injection systems!

The set consists of:

  • Sytec fuel pressure gauge (0 - 15 PSI / 0 - 1 Bar)
  • Pressure gauge adapter with connections for 8 mm fuel line
  • Brass blanking plug
  • Roll of our Superior Quality PTFE tape
  • 2 Stainless Steel jubilee clips for 8 mm fuel line

Suitable for flexible fuel lines with an internal diameter of 8 mm.

The adapter is machined from a solid billet of aluminum.

This set is intended to be used on low-pressure fuel systems for carburetors.
A high-pressure set for fuel injection systems can be found HERE.

Spare, brass, blanking plugs can be found HERE.

Sytec In-Line Fuel Pressure Gauge Kit - 0 - 15 PSI / 0 - 1 Bar

FGA100
Fuel Pressure Gauge Adapter

Fuel Pressure Gauge Adapter

In line fuel gauge adapter for pressure gauges with a thread size of 1/8th NPTF.

Suitable for flexible fuel lines with an internal diameter of 8 mm.

Machined from a solid billet of aluminum.

This adapter is supplied with brass blanking plug.

Can be used with the Sytec Low Pressure Fuel Pressure Gauge, the Webcon High Pressure Fuel Pressure Gauge or any other gauge with 1/8" tapered NPTF thread.

Please use our superior quality PTFE tape each time that you (re-)assemble screwed connections in the fuel tract in order to properly seal the connection.
As an alternative, you can use our Loctite 243 Thread Locker which will offer the added properties of protecting your connections from undoing themselves.

We strongly advise you to secure your fuel lines using our stainless steel jubilee clips.
For your convenience, you can order these clips right along with the union by simply selecting it through the drop-box above.

Spare, brass, blanking plugs can be found HERE.

Fuel Pressure Gauge Adapter

FPG001
Sytec Fuel Pressure Gauge 0 - 15 PSI / 0 - 1 Bar

Sytec Fuel Pressure Gauge 0 - 15 PSI / 0 - 1 Bar

Sytec Fuel Pressure Gauge 0 - 15 PSI / 0 - 1 Bar.

Low pressure fuel pressure gauge.

Ideal for setting the pressure on systems with carburettors.

Can be used with the 85mm Filter King filter and pressure regulator or our Fuel Pressure Gauge Adapter.

Range:

  • 0 - 15 PSI
  • 0 - 1 Bar

Thread: 1/8th" tapered NPTF.

Note:
This gauge should only be used for setting-up and then be removed for normal running.
NOT suited for high-pressure (fuel injected) systems!

Please use our superior quality PTFE tape each time that you (re-)assemble screwed connections in the fuel tract in order to properly seal the connection.
As an alternative, you can use our Loctite 542 Thread Sealant which will offer the added properties of protecting your connections from undoing themselves.

Sytec Fuel Pressure Gauge 0 - 15 PSI / 0 - 1 Bar

WFR150
Webcon Low-Pressure Fuel Pressure Gauge 0 - 15 PSI / 0 - 1 Bar

Webcon Low-Pressure Fuel Pressure Gauge 0 - 15 PSI / 0 - 1 Bar

Webcon High-Pressure Fuel Pressure Gauge 0 - 120 PSI / 0 - 8 Bar.

Ideal for setting the pressure on fuel injection systems.

Glycerin-filled for accurate reading under all circumstances.

Can be used with our Fuel Pressure Gauge Adapter.

Thread: 1/8th" tapered NPTF.

Range:

  • 0 - 120 PSI
  • 0 - 8 Bar

Note:
This gauge should only be used for setting-up and then be removed for normal running.

Please use our superior quality PTFE tape each time that you (re-)assemble screwed connections in the fuel tract in order to properly seal the connection.
As an alternative, you can use our Loctite 542 Thread Sealant which will offer the added properties of protecting your connections from undoing themselves.

Webcon Low-Pressure Fuel Pressure Gauge 0 - 15 PSI / 0 - 1 Bar

WFP150KIT
Webcon In-Line Fuel Pressure Gauge Kit - 0 - 15 PSI / 0 - 1 Bar

Webcon In-Line Fuel Pressure Gauge Kit - 0 - 15 PSI / 0 - 1 Bar

Webcon In-Line Fuel Pressure Gauge Kit.

A fantastically finished set to build your own in-line fuel pressure monitoring system.

Specifically for, low-pressure carburetor systems.
NOT suited for high-pressure fuel-injection systems!

The set consists of:

Suitable for flexible fuel lines with an internal diameter of 8 mm.

The adapter is machined from a solid billet of aluminum.

This set is intended to be used on low-pressure fuel systems for carburetors.

A high-pressure set for fuel injection systems can be found HERE.

Spare, brass, blanking plugs can be found HERE.

We advise Loctite 543 Thread Sealant to secure the gauge in the adapter.

Webcon In-Line Fuel Pressure Gauge Kit - 0 - 15 PSI / 0 - 1 Bar

WFR151
Webcon High-Pressure Fuel Pressure Gauge 0 - 120 PSI / 0 - 8 Bar

Webcon High-Pressure Fuel Pressure Gauge 0 - 120 PSI / 0 - 8 Bar

Webcon High-Pressure Fuel Pressure Gauge 0 - 120 PSI / 0 - 8 Bar.

Ideal for setting the pressure on fuel injection systems.

Glycerin-filled for accurate reading under all circumstances.

Can be used with our Fuel Pressure Gauge Adapter.

Thread: 1/8th" tapered NPTF.

Range:

  • 0 - 120 PSI
  • 0 - 8 Bar

Note:
This gauge should only be used for setting-up and then be removed for normal running.

Please use our superior quality PTFE tape each time that you (re-)assemble screwed connections in the fuel tract in order to properly seal the connection.
As an alternative, you can use our Loctite 542 Thread Sealant which will offer the added properties of protecting your connections from undoing themselves.

Webcon High-Pressure Fuel Pressure Gauge 0 - 120 PSI / 0 - 8 Bar

WFP151KIT
Webcon In-Line Fuel Pressure Gauge Kit - 0 - 120 PSI / 0 - 8 Bar

Webcon In-Line Fuel Pressure Gauge Kit - 0 - 120 PSI / 0 - 8 Bar

Webcon In-Line Fuel Pressure Gauge Kit.

A fantastically finished set to build your own in-line fuel pressure monitoring system.

Specifically for, low-pressure carburetor systems.
NOT suited for high-pressure fuel-injection systems!

The set consists of:

Suitable for flexible fuel lines with an internal diameter of 8 mm.

The adapter is machined from a solid billet of aluminum.

This set is intended to be used on high-pressure injection systems.

A low-pressure set for carbureted systems can be found HERE.

Spare, brass, blanking plugs can be found HERE.

We advise Loctite 543 Thread Sealant to secure the gauge in the adapter.

Webcon In-Line Fuel Pressure Gauge Kit - 0 - 120 PSI / 0 - 8 Bar

LOCTITE542-10ML
10 ml Loctite 542 Thread Sealant

10 ml Loctite 542 Thread Sealant

LOCTITE 542

Thread Sealant - medium strength.
For fine threads in hydraulic, pneumatic and general fittings.
Fast curing.

LOCTITE 542 is designed for the locking and sealing of metal pipes and fittings as well as other cylindrical metal assemblies.
The product cures when confined in the absence of air between close-fitting metal surfaces and prevents loosening and leakage due to shock and vibration.
The thixotropic nature of LOCTITE 542 reduces the migration of liquid product after application to the part.

Your Benefits:

  • Ideal for fine threads as used in hydraulic, pneumatic & general fittings
  • Suitable for metal threads only
  • Instant low-pressure seal
  • Resistant to fuel, oil, coolants and hydraulic fluids
  • Locks connection against vibration loosening
  • DVGW approval (EN 751-1): NG-5146AR0855

Excellently suited for sealing connections on carburetors and fuel pumps!

10 ml Loctite 542 Thread Sealant

LOCTITE243-5ML
5 ml Loctite 243 Thread Locker

5 ml Loctite 243 Thread Locker

LOCTITE 243

Threadlocking Adhesive - medium strength.

General purpose.

Suitable for all metal threaded assemblies.

LOCTITE 243 is a general purpose threadlocker of medium bond strength.
This threadlocker secures and seal bolts, nuts and studs to prevent loosening due to vibration.
The product works on all metals, including passive substrates such as stainless steel, aluminium and plated surfaces.
It is proven to be tolerant of minor contamination due to industrial oils, e.g. engine oils, corrosion prevention oils and cutting fluids.

Your Benefits 

  • Prevents loosening on vibrating assemblies, e.g. pumps, gear boxes or presses
  • Works on all metals, including passive substrates (e.g. stainless steel, aluminium, plated surfaces)
  • Proven to tolerate minor contamination by industrial oils, e.g. engine oils, corrosion prevention oils and cutting fluids
  • Permits disassembly with hand tools for servicing P1 NSF Reg. No.: 123000

5 ml Loctite 243 Thread Locker

67263TS
Roll of Superior Quality PTFE Thread Sealing Tape

Roll of Superior Quality PTFE Thread Sealing Tape

Roll of superior quality PTFE tape, used to thoroughly seal the connection of screw-in couplings on the bodies of fuel pumps, pressure regulators, fuel filters and the likes.

12 millimeter wide

Roll of 12 meters (around 36 ft. !); probably enough to last you a life-time!

As an alternative, you can use our Loctite 243 Thread Locker which will offer the added avantage of securing the connection.

 

 

Roll of Superior Quality PTFE Thread Sealing Tape