Tube Fittings Manufacturer
NPTLOK is a manufacturer of tube fittings
- A real factory
- Factory Price
- Quicker delivery time
- Mature technology
Tube Fittings Manufacturer------NPTLOK
NPTLOK is a tube fittings manufacturer for more than 20 years. NPTLOK manufactures tube fittings including union, male connector, union elbow, male/female elbow, union tee, male/female branch tee, male/female run tee, cross, and so on. You can choose your required tube fittings by part number in our catalog. Besides these, NPTLOK accepts custom service and OEM service. You can send drawings and samples to our technology to confirm whether we can manufacture tube fittings according to your requirements. And you can also print your logo on tube fittings to create your own brand.
As NPTLOK is a tube fittings manufacturer, you can get factory prices, which will save costs for your project. We also welcome any agent to promote NPTLOK tube fittings in your market at a very honor price. Send us an inquiry now.
An honor-less cost price also brings you mature good quality. NPTLOK is a 20-year experience tube fittings manufacturer, we have mature technology and stable quality. We know your project requirements and know the international standard. NPTLOK tube fittings quality meets international standards including threads, pressure, temperature, and raw material requirements. You will get qualified tube fittings.
NPTLOK can control the delivery time in our own factory. From the raw material, and spare parts to the production, we will make a plan in advance, then give you an estimated delivery time. If the tube fittings quantity is 100pcs, the production time will be 7 worker days. You can calculate the delivery time according to your order requirements. We will not delay your project.
With competitive prices, mature technology, and quicker delivery time, NPTLOK is your good choice of tube fittings manufacturer.
Material: stainless steel, brass, or a special material
Thread: male thread NPT, BSPP, G, Metric
Ferrule: double ferrule or single ferrule
Material: stainless steel, brass, or a special material
Both ends are the same
Size: 3mm0d-25.4mmod (1/8”-1”)
Both ends are double ferrule or single ferrule
Both ends sizes are not the same
Size: 1/8”-1” (3mmod-25.4mmod)
The pattern: 90 angle
Both ends are double ferrule or single ferrule
Size: 3mmod-25.4mm0d (1/8”-1”)

One end is double ferrule, another end is female thread
Female thread: NPT, G, Metric, BSPP
Pattern: 90 angle

One end is double ferrule, another end is male thread
Male thread: NPT, G, Metric, BSPP
Pattern: 90 angle
Three ends are the same sizes, double ferrule or single ferrule
Pattern: T
Size: 1/8” -1” (3mmod-25.4mmod)
Two ends are the same size, another end is the male thread
Pattern: T
Male thread: NPT, G, BSPP, Metric

Four ends are the same size, double ferrule or single ferrule
Pattern: Cross
Size: 3mmod-25.4mmod (1/8”-1”)

NPTLOK owns machines for manufacturing tube fittings

NPTLOK can control the manufacturing quality

NPTLOK has its own registered brand of manufacturing

NPTLOK has standard tube fittings manufacturing process
Tube Fittings Production
NPTLOK has CNC machines, lathe machines, and testing facilities in our workshop for tube fittings manufacturing.
The production process of tube fittings can be divided into the body, the ferrules, and the nut.
The body is able to be machined parts or forged parts depending on customers’ requirements. Normally, the body is forged parts for the higher pressure.
The nut is made in a simple process which is machined by a hex bar.
The ferrules are the most important part of tube fittings. NPTLOK manufactures ferrules and makes hard treatments on the ferrules to strengthen the pressure.
Welcome to visit tube fittings manufacturer NPTLOK and visit our production of tube fittings.


Tube Fittings Quality Control
NPTLOK has strict quality control on tube fittings manufacturing. From the raw material, the stainless steel tubing will be made passivation by our suppliers. Our inspector will check the raw materials before entering the warehouse.
During the tube fittings production, our inspector will spot-check the machined parts, for example, we will use a thread ring to check the thread precision and use the caliper to check the tube fittings size.
When assembling the tube fittings, our workers will check the smoothness inside the tube fittings to make sure there are no steel filings inside them.
Before the delivery, we will check the pressure of tube fittings on the test machines.
You will receive qualified tube fittings on the base of strict quality control.
Tube Fittings Brand Of Manufacturing
NPTLOK is a tube fittings manufacturer, we have our own factory. NPTLOK is a registered brand of our factory.
We maintain strict quality control over tube fittings manufacturing to give our brands be better reputation on our customers’ opinions.
Welcome to contact us to be our brand agent in your market.

Tube Fittings Materials
As a tube fittings manufacturer, besides the stainless steel material, NPTLOK is able to manufacture different materials tube fittings

NPTLOK can manufacture brass tube fittings, we will chrome on the surface of brass tube fittings.

As a tube fittings manufacturer, NPTLOK can also manufacture special material tube fittings.

As NPTLOK is a tube fittings manufacturer, if you require special material, the MOQ will be more.

The special material: Hastelloy

The special material: Monel
Tube Fittings Catalog
- Tube Fittings Catalog
NPTLOK manufactures a wide range of tube fittings, you can choose the required tube fittings by part number in the catalog:
Related Products
As a tube fittings manufacturer, NPTLOK has 20 years experiences of manufacturing tube fittings.
Yes, as a tube fittings manufacturer, NPTLOK exported tube fittings to the USA, Singapore, Indonesia, Pakistan, and other countries.
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