Fire Hose Threads Chart

Common Threads Chart

NH or  NST	National Hose Thread also known as National Standard Thread	Male/Female NH/NST Full compatability
NPSH	National Pipe for Straight Hose	Male NPSH with Female NPSH Female NPSH with Male NPSH Female NPSH with Male NPT Female NPSH with Male NPTF Female NPSH with male NPSM
NPT	National Pipe Tapered	Male NPT with Female NPT Male NPT with Female NPTF Male NPT with Female NPSM Male NPT with Female NPSH Female NPT with Male NPT Female NPT with Male NPTF Female NPT not compatible with Male NPSM or Male NPSH
IPT	General Iron Pipe Thread (all types of pipe)	Most to all Pipe Thread
IPS	General Iron Pipe Straight Thread (all types of pipe)	Most to all Pipe Thread
NPTF	National Pipe Tapered Thread	Male NPTF with Female NPTF Male NPTF with Female NPT Male NPTF with Female NPSM Male NPTF with Female NPSH Female NPTF with Male NPTF Female NPTF with Male NPT Female NPTF with Male NPSM or NPSH
NPSM	National Pipe Straight Mechanical	Male NPSM with Female NPSM Male NPSM with Female NPSH Female NPSM with Male NPSM Female NPSM with Male NPT Female NPSM with Male NPTF
SIPT	General Straight Iron Pipe Thread	Most to all Pipe Thread
TIPT	Tapered Iron Pipe Thread	Most to all Pipe Thread
GHT	Garden Hose Thread	Only Garden Hose
CHT	Chemical Hose Thread	Compatible with NST or NH

 

Threads and fittings can be a tricky subject.  There are hundreds of sizes and styles.  You want to make sure everything fits from your outlets to your hose.  Most common threads are general pipe thread, national fire hose thread, and quick connect fittings(mostly found on farms).  If you have any doubt in your mind what types you have, contact us so we can help set you up with a correct fit.  There is no need to worry about the different types of threads because we can set you up with any kind of adapter.  

To be completely sure you get the correct setup, call us and let us know :

1. Where is the water coming from/ What is the Outlet Size?
2. What size hose do you want to use
3. Where is the end point (ex. a spray nozzle?, an irrigation gun?, a water split for sprinklers?)

Here are some common examples:

Example 1: You have the following:

1. (A) 2" Female Pipe Outlet water source  
2. (B) 1.5" NST Used Fire Hose
3. (C) We simply create an adapter, making a 2" Male pipe end attaching to 1.5" NST hose.  See Figure 1.

 

Example 2: You want to take water from a fire hydrant.  You have:

1. (A) Fire Hydrant 2.5" water outlet
2. (B) 1.5" NST Used Fire Hose
3. (C) We simply insert a 2.5" to 1.5" NST Reducer.  See figure 2.

Example 3: You Have

1. (A) 2.5" NST Used Fire Hose
2. (B) 2.5" NPSH Used Fire Hose
3. (C) We simply insert a 2.5" NPSH to 2.5" NST Adapter