Established in 2000,NAI-LOK has made a name of itself in the list of top suppliers of in China. We focus on the production, research and development, sales of instrumentation valves and industrial valves.We have more than 20 years of precision valve manufacturing and 10 years of export experience.
Our strict control and management of the entire production process enables us to provide products that meet our customers' requirements for product safety, functionality and design at competitive prices, while ensuring the shortest lead times in the market.
We have the capability to manufacture and supply 4 different product categories, including:
General Instrumentation Valves and Fittings
High Purity & Ultra High Purity Products- NAI-LOK UHP PRODUCTS
Hose & Tubing
Special Alloy Valves
Instrument Types Stainless Steel fittings
NAI-LOK HASTELLOY®, titanium, nickel alloys, INCOLOY®, MONEL®, super duplex,
Product Description:
1.Press up to 10,000psig for standard stainless steel body
2.NAILOK Fitting type:
Union,Elbow,Tee,Male connector,Weld connector,Reducer,Plug,Cap etc.
3.Size: 1/8 to 2 inch, 3mm to 25mm
4.100% factory tested
Hex Long Nipple Pipe Fitting is a precision-engineered threaded connector designed for secure and leak-proof connections in piping systems. Featuring a hexagonal middle section for easy wrench installation, this fitting is ideal for industrial, plumbing, and mechanical applications requiring extended reach between pipe ends.
Material Specifications
| Alloy Type |
Grade |
Temperature Range |
Key Properties |
Common Applications |
| Stainless Steel |
316/316L |
-50°C to 800°C |
Corrosion resistance, weldability |
Food processing, chemical plants |
| Nickel Alloys |
Inconel 625 |
-200°C to 1000°C |
Oxidation resistance, high strength |
Aerospace, oil & gas |
| Hastelloy |
C276 |
-100°C to 1100°C |
Acid resistance, stress corrosion |
Chemical reactors, marine |
| Duplex Steel |
2205 |
-50°C to 300°C |
High chloride resistance |
Offshore platforms, desalination |
| Monel |
400 |
-150°C to 600°C |
Seawater corrosion resistance |
Marine, shipbuil |
- Why Our Alloy Nipples?
Metallurgical testing reports provided
Non-destructive testing (UT/RT) available
ASME B16.11 compliant
Custom alloy formulations
NAI-LOK is the leader in flow control technology fields of manufacturers.
NAI-LOK`s target is challenge and beyond the technical limits, continuing pursuit becoming the industry leader. Since the
establishment, we have settled the developing direction of research and develop precise valve, regulator, fluid connectors and high-tech flow control system products.
NAI-LOK`s products are widely accepted and approved by the users on its safety and stability. The application filed covering semi-conductor industry, aero-space industry, solar power battery, petroleum and petrochemical industry, power energy,bio-pharmaceuticals industry and vacuum system, etc. NAI-LOK will keep moving and making unceasing progress in the high-tech flow control field and serve the customers sincerely.
NAI-LOK`s reliable products are made continuous progress by the aim of "super, extreme, micro, preciseness" in the flow control system.
Audited Supplier 
){kind=link}