According to the product information, the YJ6D series adopts a double ferrule connection structure and provides multiple end connection forms and thread standards. The product line includes different body styles and connector combinations to meet various piping layout and instrumentation installation requirements.
The product data states that the machining accuracy of the parts is high, which helps ensure accurate deformation of both the ferrules and the tube. The threads are hardened and polished to help improve service life and reduce thread galling. The nut threads are silver-plated to reduce the friction coefficient between the nut and the fitting body threads. For elbow fittings, the internal passage adopts a smooth radius transition to support stable fluid flow.
Each fitting can be marked with size, material, and heat number according to the product data.
For more detailed model specifications and technical data, please contact customer service or refer to the attached document.
| Material |
Bar Stock Standard |
Forging Standard |
| 316 / 316L Stainless Steel |
ASTM A479, ASME SA479, EN 1.4401/1.4404 |
ASTM A182, ASME SA182, EN 1.4401/1.4404 |
| 304 Stainless Steel |
ASTM A479, ASME SA479, EN 1.4301 |
ASTM A182, ASME SA182, EN 1.4301 |
| Duplex 2205 / Super Duplex 2507 |
ASTM A479 |
ASTM A182 |
| Alloy 400 / 600 / 625 / 825 / C-276 |
ASTM B164 / B166 / B446 / B425 / B574 |
ASTM B564 / ASME SB564 |
| Titanium (Grade 4) |
ASTM B348 |
ASTM B381 |
| Carbon Steel |
ASTM A108 |
ASTM A105 |
| Brass |
ASTM B16 / B453 |
ASTM B283 |
Features and Functions
- Available in multiple structures and connection forms
- Size range covers 1/16″ to 2″ and 2 mm to 50 mm
- High machining accuracy helps ensure correct ferrule and tube deformation
- Hardened and polished threads help extend fitting service life and reduce galling
- Silver-plated nut threads help reduce friction with the fitting body threads
- Elbow flow passages use a smooth radius design for stable fluid flow
- Each fitting can be marked with size, material, and heat number
- The fittings support disassembly and re-tightening
- Part of the size range, 1/8″ to 5/8″ and 3 mm to 16 mm, has passed EC-79 certification
Avantages du produit
- Leak-Free Two-Ferrule Design: The advanced double ferrule mechanism separates sealing and tube gripping functions, ensuring a positive, gas-tight seal that resists severe vibration and pressure surges.
- Extensive Material Options: To combat corrosive environments, we offer stainless steel tube fittings (316/316L, 304), Duplex 2205, Super Duplex 2507, various Alloys (400, 600, 625, 825, C-276), Titanium, Brass, and Carbon Steel.
- Global Standard Compliance: Our instrumentation tube fittings are manufactured to strictly comply with international thread and pressure standards, including ASME, ISO, SAE, and DIN.
- Anti-Galling Technology: The nut threads are silver-plated, and the body threads are specially hardened and polished, significantly reducing friction and preventing thread galling during assembly.
- Complete Traceability: Every single fitting is permanently stamped with the size, material grade, and heat code, ensuring 100% material traceability for critical projects.
- Smooth Flow Path: Elbow configurations feature radiused junction designs, which provide a smooth flow path, minimizing pressure drop and system turbulence.
Our Company Strength
Highlight se concentre sur la conception et la fabrication d'équipements d'essai de pression et de systèmes d'essai de contrôle des fluides, en prenant en charge à la fois les modèles standard et la personnalisation en fonction des projets.
- Plus de 16 ans d'expérience dans le domaine des équipements d'essai de pression et des systèmes de surpression pneumatique
- Capacité de production annuelle : plus de 1000 équipements
- Plus de 8000 clients servis
- Mise en œuvre d'une gestion de la qualité basée sur la norme ISO9001 et contrôle stable de la fabrication
- Une solide équipe d'ingénieurs pour la configuration des bancs d'essai, l'adaptation des montages et l'assistance technique.
- Expérience de l'exportation dans l'assistance aux acheteurs internationaux en matière de communication et de documentation techniques
Available Thread Types
Our tube fittings can be seamlessly integrated into various piping systems with multiple end connection options:
- NPT Threads: ASME B1.20.1, SAE AS71051
- ISO Tapered Threads (R, PT, BSPT): ISO 7-1, EN 10226-1, BS 21, DIN 2999
- ISO Parallel Threads (G, RP, BSPP): ISO 228-1, DIN ISO 228-1
- SAE/MS Straight Threads (UN, UNJ): ASME B1.1, SAE J475
- Metric Threads (M): ISO 261
Pressure & Temperature Ratings
- Working Pressure: Designed to match or exceed the working pressure of the recommended tubing. Maximum working pressures can reach up to 15,000 psig (1033 bar) depending on the specific material, size, and thread type. (Calculated based on ANSI/ASME B31.3 or SAE J1926 standards).
- Working Temperature: Our compression fittings operate reliably across extreme temperatures. With appropriate sealing elements (such as FKM, NBR, Copper, or PTFE gaskets), the temperature range spans from -325°F to 1000°F (-198°C to 538°C).
Available Configurations
We offer a complete range of double ferrule fitting shapes to meet any routing requirement:
- Straights: Male/Female Connectors, Unions, Reducing Unions
- Elbows: 90° Male/Female Elbows, 45° Elbows, Union Elbows
- Tees: Male/Female Branch Tees, Run Tees, Union Tees
- Crosses: Union Crosses
- Accessories: Plugs, Caps, Nuts, Front & Back Ferrules
