I need to replace my natural gas hose on my BBQ grill, but I dont know what size I need.
Three possible ways to figure this out.
- Lay the hose over a ruler or tape measure. If the hose is 5/8" wide it is a 3/8" ID hose. If the hose measures ¾" wide, it is a 1/2" ID hose.
- Measure the internal diameter of the quick disconnect. The 3/8" hose will fit a quick disconnect with a 5/8" internal diameter and the ½" hose will fit a quick disconnect with a 3/4" diameter.
- If the quick disconnect is an MB Sturgis Inc Quick Disconnect, the 3/8" it will have the numbers 375 or "Sturgi-Safe" on the retractable sleeve and the ½" will have Model 4 on the retractable sleeve.
Will MB Sturgis make a custom assembly specific to my application?
Absolutely! We take pride in working with our customers, no matter how big or small, to satisfy the individual needs or requirements.
I do not have a natural gas hose for my BBQ Grill (or other outdoor appliance). What size hose and quick disconnect do I need?
To see a hose sizing chart in relation to BTU's, please see the Hose Sizing Chart under Resources > Document Library in the Media & Resources section of this web site.
A squirrel or small critter ate through my hose. What can I do to keep this from happening again?
We offer all of our LP & Natural Gas hoses with a 98% coverage stainless steel overbraid. This will keep the small critters from chewing through the hose and provides great protection from the elements.
How do I now what size and what type of thread or quick disconnect plug I have on the end of my hose.
See our QD Plug and Adapter guide under Resources > Document Library. You will be able to print the page and use a real size scale to match up your connecting part.
I need a longer/shorter hose. Can MB Sturgis make a hose any length?
Yes, we can customize any length required up to 100'.
What is your lead time to ship my order?
Under normal circumstances, most orders ship out within 24-48 hours. However, due to our vast product line with many various options and lengths, we may be required to build the item(s) which could prolong the order another 24 hours. Large order volumes, weather conditions or circumstances beyond our control, could also cause a delay in a shipment. As we foresee any of these circumstances potentially delaying your order, we will email you immediately with an estimated ship date.
If you require an item Next Day Air, please contact us at (314) 329-7747 or (314) 363-1681.
I have a quick disconnect on my camper and I need a hose to plug into this quick disconnect and run my camp stove that normally takes a throw away 1# cylinder. Do you make this?
Yes. The part number you are looking for is a 100476. Please go to our RV & Camping Hoses page of our web site.
I have an extend-a-stay on my motor coach, but I want to use quick disconnects instead of having to use wrenches and tools. Do you make something like this?
Yes. We have plenty of options for your needs for the quick disconnects and the hoses that will mate with each system.
I would like to have a longer hose to go from my dual propane tanks to my automatic changeover regulator. Do you make longer hoses?
We can make any hose in any length required. We can also add stainless steel overbraid to protect the hose and extend the life of the hose.
NPT Vs. NPTF Taper Pipe Threads
The two most common taper pipe threads used in the United States are NPT and NPTF. Applications range from electrical conduits and hand railings to high-pressure pipe lines that carry gas or caustic fluids. NPT threads are for mechanical or low-pressure air or fluid applications and require the use of sealing compounds like Teflon tape, to provide the seal.
When the application is more critical, and the sealing compound may fail due to high heat or pressure, NPTF Dryseal threads are used. This mechanical seal is produced by the mating and slight crushing of the threads when a wrench is applied to tighten the fittings.
Visually, both threads appear to be identical. Both have a ¾ taper over one foot of length. Both have the same pitch diameter at the top of the hole of internal threads or end of the pipe on external threads, and both have the same thread lengths or depths. However, there is a subtle difference in the thread form that differentiates the two. The major and minor diameters of both threads differ slightly. With NPT threads, after a wrench is applied, slight spaces at the major and minor diameters may exist that would allow the assembly to leak and therefore a sealing compound is used to fill any gaps. On the other hand, NPTF threads are designed to ensure that sufficient crushing of the entire thread form will take place to produce a mechanical seal.
How does the difference in thread forms effect the tooling used to produce NPT and NPTF threads? Taps are available for both NPT and NPTF threads having the appropriate form to produce each type of thread. Since NPT threaded parts require sealing compounds, it is acceptable to use an NPTF tap for NPT applications. However, NPT taps cannot be used for NPTF applications, as it will likely produce a thread that will leak. The same is true of external threads. In most cases the tap drill is the same for both forms.
The most significant difference in the two threads is the inspection required. Since sealing compounds will be used for NPT threads, only a single plug with a step, known as an L1 plug (internal thread) or a single thin L1 ring (external) are required to check size. However, since the taper and the position of major and minor diameters are so critical to the sealing of NPTF threads, the additional threads in the assembly known as L2 and L3, and the major and minor diameters are inspected with either special plug or ring gages.