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| Customization: | Available |
|---|---|
| Standard: | ANSI |
| Material: | Stainless Steel |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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The NAI-LOK High Pressure Reducing Union is engineered for superior performance in extreme-pressure instrumentation, hydraulic, and pneumatic systems. Featuring a double ferrule compression design, this fitting ensures a leak-proof, vibration-resistant seal, making it ideal for critical applications in oil & gas, chemical processing, petrochemical, and power generation industries.
6000 PSI (414 Bar) Pressure Rating - Withstands extreme high-pressure environments for reliable operation.
Double Ferrule Compression Design - Provides a secure, leak-free connection resistant to vibration and thermal cycling.
Corrosion-Resistant Materials - Constructed from Stainless Steel 316L, with optional premium alloys including 6Moly (S31254), HASTELLOY® (C22, C276, B3), Titanium, Nickel Alloys, INCOLOY® (825, 800), MONEL® 400, INCONEL® 625, and Super Duplex (S32750, 2507, 2205) for superior resistance to acids, chlorides, and seawater.
Precision Machined for Optimal Flow - Smooth internal bore minimizes pressure drop and ensures turbulence-free fluid/gas transmission.
NPT Thread (National Pipe Tapered) - Ensures a tight, pressure-resistant seal with standard piping systems.
BSPP,BSPT,SAE THREAD
1/16" to 2" Reducing Union - Compatible with a wide range of tubing sizes for flexible system integration.
Wide Industry Applications - Perfect for instrumentation tubing, process control, chemical injection, and high-pressure fluid/gas transfer.
| Parameter | Specification |
|---|---|
| Material | Body: 6Moly (S31254) / 316 Stainless Steel,HASTELLOY ® HC22 HC276 H-B3 UNS N10276 N10675 N10622, titanium, nickel alloys, INCOLOY ® 825, INCOLOY ® 800, MONEL® 400 N04400, INCONEL ® 625 UNS N06625, super duplex S32750 2507 2205 |
| Pressure Rating | 6000psi (414 bar) |
| Connection Type | NPT Male Thread (Tapered) ,BSPP,BSPT,NPT,SAE thread, Tube Fittings |
| Fitting Type | Union, Bulkhead Union,Union Tee, Union Elbow, Union Cross,Male Connector,Female Connector,Adapter, Reducer (Double Ferrule Compression) |
| Seal Type | Metal-to-Metal Compression (No PTFE Tape Needed) |
| Operating Temp. | -20°F to 1000°F (-29°C to 538°C) |
| Standards | ASME B1.20.1 (NPT), ASTM A182 (Stainless Steel) |
| Material Grade | UNS Number (®) | Key Characteristics & Typical Applications |
|---|---|---|
| Inconel® 625 | UNS N06625 | Excellent fatigue and thermal fatigue strength. Resists a wide range of severe corrosives. Ideal for seawater, aerospace, and chemical processing. |
| Monel® 400 | UNS N04400 | Superior resistance to seawater and steam at high temperatures. Excellent for marine and hydrocarbon applications. |
| Hastelloy® C22 | UNS N06022 | Outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking. Handles oxidizing and reducing media. |
| Hastelloy® C276 | UNS N10276 | Versatile corrosion resistance to a broad range of chemical process contaminants, including chlorides. |
| Hastelloy® B2 | UNS N10665 | Excellent resistance to reducing environments, especially hydrochloric acid at all concentrations and temperatures. |
| Hastelloy® B3 | UNS N10675 | Improved thermal stability and corrosion resistance over B2, with excellent resistance to hydrochloric acid. |
| Alloy 254 SMO® 6Mo 6Moly | UNS S31254 | Extremely high resistance to pitting and crevice corrosion, ideal for seawater and chloride-containing solutions. |
| Super Duplex® 2507 | UNS S32750 | High strength and excellent resistance to stress corrosion cracking, pitting, and crevice corrosion. |
| Duplex® 2205 | UNS S31803/S32205 | Good strength and improved resistance to stress corrosion cracking compared to standard stainless steels. |
| Alloy 904L | UNS N08904 | High chromium, nickel, molybdenum content provides excellent resistance to sulfuric acid and other aggressive chemicals. |
Oil & Gas - High-pressure pipelines, wellhead controls, and instrumentation.
Chemical & Petrochemical - Resistant to H2S, chlorides, and acidic media.solvent, and corrosive fluid handling
Power Generation - Steam, cooling, and hydraulic systems.
Pharmaceutical & Food Processing - High-purity fluid transfer (316 SS option).
Marine & Offshore - Seawater-resistant (6Moly S31254) for harsh environments
Aerospace & Defense (High-integrity fluid systems)
.Why Choose This Compression Tube Fitting?
Superior Leak Resistance - Double ferrule design prevents loosening under vibration.
High Corrosion Resistance - 6Moly (S31254) & 316 SS for aggressive media.
Easy Installation - No special tools required; hand-tighten plus 1-1/4 turns for a secure seal.
High Pressure Union Tee Fitting , 6Moly S31254 Instrumentation Fitting ,Double Ferrule Compression Fitting 6000psi
1 Inch NPT Male Stainless Steel Tee , 12mm OD Tube Fitting for Instrument Gas Systems
Corrosion-Resistant High-Pressure Union Tee , Industrial Instrument Compression Tube Fittings
Alternative Compression Fitting
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