Dixon
King Combination Nipple – NPT Threaded End with Knurled Wrench Grip
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- Usually Ships Same Day
- Weight:
- 0.00 LBS
Description
King Combination Nipple – NPT Threaded End with Knurled Wrench Grip
King Combination Nipple – NPT Threaded End with Knurled Wrench Grip provides a durable hose-to-pipe connection for compatible low-pressure discharge and suction applications.
Constructed from unplated steel, these Dixon King Combination Nipples use an NPT threaded end for connection to compatible piping components. This GetPipe.com listing covers nominal sizes from 1/2" through 3", with the 3" option using Dixon's no-knurl construction.
Product Highlights
Unplated steel Dixon King Combination Nipple designed for compatible low-pressure hose and piping connections.
The NPT threaded end provides a secure pipe connection, with sizes available from 1/2" through 3".
Technical Specifications
NPT Threaded End & Hose Connection Configuration
The NPT threaded end provides the pipe-side connection for installation with a compatible female NPT fitting, valve, piping component, or equipment connection.
The opposite end is designed for connection to compatible hose using an appropriate coupling or securement method selected for the hose construction and application.
King Combination Nipple Design
Dixon recommends King Combination Nipples for low-pressure discharge and suction applications involving compatible liquids. The combination nipple configuration provides a practical transition between compatible hose assemblies and threaded piping components.
Working pressure can vary according to hose construction, the type of clamping system used, and the application. The complete hose assembly and intended service conditions should therefore be reviewed before installation.
The pipe-side end uses National Pipe Thread for connection with a compatible female NPT component. Confirm the nominal size and mating thread before selecting the nipple for a hose or piping assembly.
Inspect the threaded end and mating connection before assembly to ensure the threads are clean and undamaged. Appropriate installation practices should be used to protect both the nipple and connected equipment.
The unplated-steel Dixon options from 1/2" through 2" use an NPT threaded end with a knurled wrench grip. The knurled area provides a defined gripping surface that can assist with control of the fitting during installation and removal.
The 3" unplated-steel ST35 option uses Dixon's NPT threaded-end no-knurl construction. Verify the selected nominal size and corresponding construction when ordering from this combined GetPipe.com listing.
This GetPipe.com listing covers nominal sizes from 1/2" through 3". Selection should account for the required hose size, NPT connection, hose construction, securement method, compatible liquid, and intended operating conditions.
Dixon states that King Combination Nipples are not recommended for steam and recommends crimp sleeves for reliable assemblies. A completed hose assembly should be properly inspected and tested before being placed into service.
Installation & Selection Considerations
Confirm the required nominal size.
Verify the mating NPT connection.
Confirm the size-specific construction.
Review hose and coupling compatibility.
Verify intended service conditions.

Our product specialists can help review nominal size, NPT connection requirements, knurled or no-knurl construction, hose compatibility, coupling method, and intended service before you order.
Frequently Asked Questions
What are Dixon King Combination Nipples used for?
Dixon recommends King Combination Nipples for low-pressure discharge and suction service involving compatible liquids.
What type of threaded connection is provided?
The pipe-side connection uses a male NPT thread for connection with a compatible female NPT component.
What sizes are included in this GetPipe.com listing?
This listing covers nominal sizes from 1/2" through 3". Verify the required size before ordering.
Do all sizes have the same knurled wrench grip?
No. Dixon's unplated-steel options from 1/2" through 2" use the knurled wrench-grip construction, while the 3" ST35 option uses the no-knurl construction.
Are King Combination Nipples recommended for steam?
No. Dixon states that King Combination Nipples are not recommended for steam service.
Does Dixon recommend a hose securement method?
Dixon states that crimp sleeves are available and recommended for reliable King Combination Nipple assemblies.
Important Ordering & Installation Notes
- Confirm the required nominal size.
- Verify the male NPT connection.
- Confirm size-specific grip construction.
- Review hose compatibility.
- Verify compatible liquid service.
- Do not use for steam service.
- Inspect threads before installation.
- Review the hose securement method.
- Consider Dixon-recommended crimp sleeves.
- Test the completed assembly before service.