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Aluminum NPT Half Coupling

Aluminum NPT Half Coupling

Availibilty : Typically In-stock, Additional QTY's available Contact us

11 in stock

SKU:21026

Regular price $21.96
Regular price Sale price $21.96
Sale Sold out
Shipping calculated at checkout.
NPT Thread Size

 Pricing Shown is best pricing any QTY

We're the manufacturer of our aluminum half couplings. We machine them in-house on our own CNC lathes using USA 6061-T6 bar stock.

Boyd aluminum Half couplings thread profile conform to ASME B1.20.1 and meet or exceed SCH 40 wall thickness for 150# rating. Dimensionally our half couplings are very comparable to ones that you purchase from industrial supply houses or foundries.

Boyd half couplings are usually stocked by the hundreds. If for some reason we don't have it immediately available we can meet whatever your needs are within 2 weeks. If you have the time to wait, go ahead and place your order and in the notes section let us know that you can wait or to split the shipment.

NPT Fitting Sizes are based on the "PIPE" that would typically thread into these couplings. Use the Chart below to find the proper size match.

Its important to understand that both the Male and Female NPT fitting has a 1.8 DEG taper applied to the thread. This taper is intended to create an interference fit once threaded together. It is expected that the male mating fitting will not thread all the way down. Sufficient tightness is created approx 1 turn or less past hand tight, any further and you risk damaging the fitting. To get a liquid tight seal you will need to use thread sealant that is appropriate for your application.

NPT Half Couplings are tapered threaded fittings and can only be threaded from one end. Typically one end of the fitting has a large chamfer on the outside that designates "UP". You should always verify yourself before welding. 

All Fittings are quality checked with an L1 NPT Thread Gauge (See diagram below) before we add them to inventory. We will not replace improperly welded fittings.


CAN YOU USE AN ALTERNATE NPT FITTING? CHECK THESE OUT.

Aluminum CNC Machined NPT Flange Fitting  

OR

Aluminum Stamped NPT Flange Fitting 


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Customer Reviews

Based on 13 reviews
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B
Bob Yard
Aluminum half pipe couplings

We received our order quickly and are happy with the quality. They work well and we will be ordering more.

J
Jonathan Steed
Shipping

Parts are perfect, but if they ever offer you free shipping don’t fall for it like I did. The “shipping provider” that they used was in no rush to ship, after leaving the Boyd welding warehouse the parts stayed in Jacksonville for 8 days before finally leaving. Also another 4-5 days after that to get to me. I would happily pay for shopping next time so they could arrive in a timely manner.

M
Mark Bradley
2” Extra Heavy 1/2 Coupling

Well made fitting. Extra heavy is great for limiting distortion when welding in places you will never see again.