Reducing Adapters Manufacturer
One adapter solves your thread mismatch
- Convert between NPT, BSP, and metric threads
- Male-to-male, female-to-female, or male-to-female, we make all
- Reduce or increase pipe size with no extra fittings needed
- Stainless steel, brass, or carbon steel, pick by your media
Why NPTLOK for Reducing Adapters
You have a 1/2″ NPT pipe. The equipment has a 3/8″ BSP port. Or a metric thread. Or the other way around. What do you do？
A reducing adapter is the answer.
One end fits your pipe. The other end fits your equipment.
Common conversions we make:
- NPT male to BSP female
- BSP male to NPT female
- Metric male to NPT female
- 1/2″ NPT to 3/8″ NPT
- 1/2″ BSP to 3/8″ BSP
- Male to male, female to female, or male to female
Common materials we make:
Stainless steel: For chemical plants, marine, etc. 316 or 304.
Brass: For water, air, and low pressure. Cost-effective.
Carbon steel: For oil and gas, high pressure, dry service.
Common sizes we make:
1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1″.
Need a custom reducing adapter？ Different thread？ Special material？ Non-standard size？ Contact us. We will make it.
Get in touch with us today to request a quote or sample. MOQ is 10 pieces, test before you trust us.
Our Reducing Adapters Range
Both ends male thread, different sizes. Connect a larger female port to a smaller female port. Example: 1/2″ NPT male to 3/8″ NPT male.
Both ends are female threads, different sizes. Connect a larger male fitting to a smaller male fitting. Example: 1/2″ NPT female to 3/8″ NPT female.
One male end, one female end, different sizes. The most common reducing configuration. Example: 1/2″ NPT male to 3/8″ NPT female.
Features of Our Reducing Adapters
Male-male, female-female, or male-female. We make every combination you need.
Stainless steel, brass, carbon steel. Pick the right one for your media and budget.
1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1″. You can also send us your specific needs.
Thread Protection, Every Male Thread of Reducing Adapters Arrives Ready to Use
Here is a problem we see too often.
You order reducing adapters. They arrive after two weeks. You open the box. Some threads are dented. Some are scratched. One has a burr that should not be there.
Now what？ You either use them anyway and hope they seal. Or you send them back and wait another two weeks.
We put plastic caps on every male thread of reducing adapters. Every single one. Before they go into the box. Before they go on the truck.
The caps take the hits. The threads stay clean. No dents. No scratches. No burrs.
When you open the box, your reducing adapters are ready to install. No inspection needed. No returns.
Custom-make Reducing Adapters, Your Specification, Our Production
Standard reducing adapters work for standard jobs, but not every job is standard.
Maybe you need NPT on one end and BSP on the other. This is not a standard catalog item. Maybe you need a size no one stocks. Or a special material not listed on any website.
This is where our custom-make reducing adapters come in.
Tell us your thread requirements: Male or female. NPT, BSP or metric. Different sizes. We will make it.
Tell us your material: stainless steel, brass or carbon steel. Ask us if you need something else.
If you have no drawing, no problem, describe what you need and we will make a drawing for you to confirm.
If you only want small quantities, no problem, MOQ is 10 and you don’t need to order hundreds to get a customized reducing adapter.
Customized reducing adapters. Your thread. Your material. Your size. We make it.
Article
How do I install a reducing adapter correctly?
Step 1
It is wise to first clean both parts’ threads of any debris, old sealant, etc. (after disassembly if necessary).
Step 2
For NPT or BSPT connections apply Teflon tape or pipe thread sealant to the threads. For BSPP connections use a sealing washer or O-ring.
Step 3
Tighten reducing adapter by hand in the correct orientation to prevent cross-threading.
Step 4
Tighten up the reducing adapter using the correct wrench, be very aware not to over tighten as this can cause severe damage to the reducing adapter as well as to the nearby pipe work and instruments.
Step 5
Pressure tests the connection. Check for leaks.
One more thing
Make sure the tape does not enter the pipe. The liquid tape can clog valves and other instruments.
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Use a tool like a caliper to measure the outside diameter of male threads or the inside diameter of female threads. Compare them to thread standard charts. Not sure？ Send us a photo. We will tell you what you have.
Yes. Tell us your thread requirements on both ends. Male or female. NPT, BSP, or metric. Sizes. We will make it.
It depends on material and size. Stainless steel: up to 10,000 psi. Brass: 150 to 3,000 psi. Carbon steel: up to 6,000 psi. Always check the rating for your specific size and material.
Yes for NPT and BSPT (tapered threads). They use Teflon tape or pipe thread sealant. No for BSPP (parallel threads). BSPP seals with a washer or O-ring at the shoulder.
