We offer 3/4 NPT thread pipe nipples at wholesale price, which are durable and suitable for various plumbing connection needs. Take premium black iron material, anti-corrosion and wear resistance, and transport water, gas, oil, and multiple neurogen. NPT thread design ensures tight connection to ensure leakproof and is in building, petroleum, and industrial applications. Our pipe fittings have wholesale prices, we provide customized service, and we deliver products on time, which is ideal for engineering projects and plumbing maintenance. Acquire more details by emailing us.
The black iron coupling is a durable pipe fitting that connects two 3/4-inch pipes with NPT (National Pipe Thread) threads and is resistant to high temperature and corrosion. Gas lines, fire sprinkler systems, and other industrial applications ensure a safe and non-leak connection.
Black iron pipe is known for its durability and resistance to high temperatures. Its dark appearance is due to the oxidation process that occurs during production. Although black iron pipe is robust, it lacks corrosion resistance, making it more suitable for indoor applications.
3/4-inch NPT thread, providing a secure and leak-proof connection.
DIN 2999 thread is a taper thread type for those with a pressure-sealing connection. It is for European engineering and building projects, commonly liquid and gas transportation.
ISO 7-1 has an R and G thread with two types and is widespread in the international market.
BS 21 standard is into BSPP and BSPT and is highly compatible with other European thread standards.
Black iron couplings are strong and durable against heat and pressure, making them ideal for gas distribution, fire suppression systems, and low-pressure plumbing.
The black pipe has an uncoating steel or iron appearance and a matte dark surface. The pipe fitting hot treatment and oxidation leaves over a piece of oxide. The pipe coupling with a matte black finish is durable and highly cost-effective.
Strong and reliable for heavy-duty applications.
Suitable for indoor use where corrosion is not a primary concern.
Easy to install and compatible with standard NPT-threaded pipes.
Black pipe coupling has high-temperature resistance and is not easy to deform.
Black iron fittings are more cost-effective than others.
As a direct manufacturer, we can offer wholesale prices for black iron couplings depending on the quantity ordered. You can contact us to obtain the price list for our pipe fittings.
Confirm the thread standards to ensure compatibility with your pipes.
Verify shipping costs and delivery times for bulk orders.
Check for certifications like ASTM standards if required for your project.
