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The 1CO9 and 1DO9 are precision 90° adjustable stud elbow hydraulic fittings, engineered for high-pressure systems with UN/UNF threaded male stud ends and O-ring boss (ORB) sealing. Their adjustable design allows precise positioning during installation, ensuring seamless integration into complex hydraulic layouts.
Compliant with ISO 11926 and SAE J1926-3 standards, these fittings feature an ORB seal—an O-ring in a truncated housing—that delivers leak-proof performance even under high pressure and vibration. The stud end utilizes UN/UNF threads for secure mechanical engagement, while the opposing end connects to a 24° cone for versatile system compatibility.
Crafted from carbon steel (zinc-plated for corrosion resistance) or stainless steel, they excel in demanding conditions, with a maximum pressure rating of 630 bar. The key distinction lies in their duty grades: 1CO9 (1C prefix) is light-duty (L series), and 1DO9 (1D prefix) is heavy-duty (S series), catering to varied pressure requirements. Ideal for industrial machinery and high-stress hydraulic systems, these fittings balance durability, standardized compatibility, and reliable sealing for critical fluid power applications.
| PART NO. | THREAD | TUBE O.D. | DIMENSIONS | MPa | |||||||
| E | D1 | 11 | L1 | L2 | S1 | S2 | S3 | ||||
| 1CO9-12-04OG | M12X1.5 | 7/16"X20 | 6 | 13 | 28 | 27.2 | 11 | 14 | 17 | 31.5 L series | |
| 1CO9-14-06OG | M14X1.5 | 9/16"X18 | 8 | 15.5 | 30.5 | 31.8 | 14 | 17 | 19 | ||
| 1CO9-16-06OG | M16X1.5 | 9/16"X18 | 10 | 17.5 | 32.5 | 33.3 | 16 | 19 | 19 | ||
| 1CO9-18-08OG | M18X1.5 | 3/4"×16 | 12 | 19 | 34 | 37.5 | 19 | 22 | 24 | ||
| 1CO9-22-10OG | M22X1.5 | 7/8"X14 | 15 | 22 | 37 | 44 | 22 | 27 | 27 | ||
| 1CO9-22-08OG | M22X1.5 | 3/4"X16 | 15 | 22 | 37 | 39.5 | 22 | 27 | 24 | ||
| 1CO9-26-12OG | M26X1.5 | 1.1/16"×12 | 18 | 25.5 | 42 | 51 | 27 | 32 | 32 | ||
| 1CO9-30-12OG | M30X2 | 1.1/16"X12 | 22 | 29.3 | 45.8 | 53.5 | 30 | 36 | 32 | 16 L series | |
| 1CO9-36-12OG | M36X2 | 1.1/16"×12 | 28 | 33.5 | 47.8 | 57.5 | 36 | 41 | 41 | ||
| 1CO9-36-16OG | M36X2 | 1.5/16"×12 | 28 | 33.3 | 49.8 | 57.5 | 36 | 41 | 41 | ||
| 1CO9-45-20OG | M45X2 | 1.5/8"×12 | 35 | 39.2 | 60.7 | 63 | 48 | 50 | 50 | ||
| 1CO9-52-24OG | M52X2 | 1.7/8"X12 | 42 | 44.8 | 67.8 | 70.5 | 55 | 60 | 55 | ||
| 1DO9-14-04OG | M14X1.5 | 7/16"X20 | 6 | 17.5 | 32.5 | 30 | 14 | 17 | 17 | 63 S series | |
| 1DO9-16-06OG | M16X1.5 | 9/16"X18 | 8 | 18.7 | 33.7 | 33.3 | 16 | 19 | 19 | ||
| 1DO9-18-06OG | M18X1.5 | 9/16"X18 | 10 | 19.5 | 36 | 33.5 | 19 | 22 | 19 | ||
| 1DO9-18-08OG | M18X1.5 | 3/4"×16 | 10 | 19.5 | 36 | 37.5 | 19 | 22 | 24 | ||
| 1DO9-20-08OG | M20X1.5 | 3/4"×16 | 12 | 19.5 | 36 | 37.5 | 19 | 24 | 24 | ||
| 1DO9-22-10OG | M22X1.5 | 7/8"X14 | 14 | 23 | 41 | 44 | 22 | 27 | 27 | ||
| 1DO9-24-10OG | M24X1.5 | 7/8"×14 | 16 | 24 | 42.5 | 46.5 | 24 | 30 | 27 | 40 S series | |
| 1DO9-30-12OG | M30X2 | 1.1/16"X12 | 20 | 28.3 | 49.8 | 53.5 | 30 | 36 | 32 | ||
| 1DO9-36-16OG | M36X2 | 1.5/16"X12 | 25 | 32.8 | 56.8 | 57.5 | 36 | 46 | 41 | ||
| 1DO9-42-20OG | M42X2 | 1.5/8"×12 | 30 | 36.2 | 62.7 | 59.5 | 41 | 50 | 50 | ||
| 1DO9-52-24OG | M52X2 | 1.718"×12 | 38 | 45.8 | 76.8 | 70.5 | 55 | 60 | 55 | 31.5 S series | |
| Note:In case if you are interested to order the adapter in complete set with cutting ring and nut it is necessary to insert suffix "RN"after our part no.,for example 1CO9-30-120G/RN. | |||||||||||
The 1CO9 and 1DO9 are precision 90° adjustable stud elbow hydraulic fittings, engineered for high-pressure systems with UN/UNF threaded male stud ends and O-ring boss (ORB) sealing. Their adjustable design allows precise positioning during installation, ensuring seamless integration into complex hydraulic layouts.
Compliant with ISO 11926 and SAE J1926-3 standards, these fittings feature an ORB seal—an O-ring in a truncated housing—that delivers leak-proof performance even under high pressure and vibration. The stud end utilizes UN/UNF threads for secure mechanical engagement, while the opposing end connects to a 24° cone for versatile system compatibility.
Crafted from carbon steel (zinc-plated for corrosion resistance) or stainless steel, they excel in demanding conditions, with a maximum pressure rating of 630 bar. The key distinction lies in their duty grades: 1CO9 (1C prefix) is light-duty (L series), and 1DO9 (1D prefix) is heavy-duty (S series), catering to varied pressure requirements. Ideal for industrial machinery and high-stress hydraulic systems, these fittings balance durability, standardized compatibility, and reliable sealing for critical fluid power applications.
| PART NO. | THREAD | TUBE O.D. | DIMENSIONS | MPa | |||||||
| E | D1 | 11 | L1 | L2 | S1 | S2 | S3 | ||||
| 1CO9-12-04OG | M12X1.5 | 7/16"X20 | 6 | 13 | 28 | 27.2 | 11 | 14 | 17 | 31.5 L series | |
| 1CO9-14-06OG | M14X1.5 | 9/16"X18 | 8 | 15.5 | 30.5 | 31.8 | 14 | 17 | 19 | ||
| 1CO9-16-06OG | M16X1.5 | 9/16"X18 | 10 | 17.5 | 32.5 | 33.3 | 16 | 19 | 19 | ||
| 1CO9-18-08OG | M18X1.5 | 3/4"×16 | 12 | 19 | 34 | 37.5 | 19 | 22 | 24 | ||
| 1CO9-22-10OG | M22X1.5 | 7/8"X14 | 15 | 22 | 37 | 44 | 22 | 27 | 27 | ||
| 1CO9-22-08OG | M22X1.5 | 3/4"X16 | 15 | 22 | 37 | 39.5 | 22 | 27 | 24 | ||
| 1CO9-26-12OG | M26X1.5 | 1.1/16"×12 | 18 | 25.5 | 42 | 51 | 27 | 32 | 32 | ||
| 1CO9-30-12OG | M30X2 | 1.1/16"X12 | 22 | 29.3 | 45.8 | 53.5 | 30 | 36 | 32 | 16 L series | |
| 1CO9-36-12OG | M36X2 | 1.1/16"×12 | 28 | 33.5 | 47.8 | 57.5 | 36 | 41 | 41 | ||
| 1CO9-36-16OG | M36X2 | 1.5/16"×12 | 28 | 33.3 | 49.8 | 57.5 | 36 | 41 | 41 | ||
| 1CO9-45-20OG | M45X2 | 1.5/8"×12 | 35 | 39.2 | 60.7 | 63 | 48 | 50 | 50 | ||
| 1CO9-52-24OG | M52X2 | 1.7/8"X12 | 42 | 44.8 | 67.8 | 70.5 | 55 | 60 | 55 | ||
| 1DO9-14-04OG | M14X1.5 | 7/16"X20 | 6 | 17.5 | 32.5 | 30 | 14 | 17 | 17 | 63 S series | |
| 1DO9-16-06OG | M16X1.5 | 9/16"X18 | 8 | 18.7 | 33.7 | 33.3 | 16 | 19 | 19 | ||
| 1DO9-18-06OG | M18X1.5 | 9/16"X18 | 10 | 19.5 | 36 | 33.5 | 19 | 22 | 19 | ||
| 1DO9-18-08OG | M18X1.5 | 3/4"×16 | 10 | 19.5 | 36 | 37.5 | 19 | 22 | 24 | ||
| 1DO9-20-08OG | M20X1.5 | 3/4"×16 | 12 | 19.5 | 36 | 37.5 | 19 | 24 | 24 | ||
| 1DO9-22-10OG | M22X1.5 | 7/8"X14 | 14 | 23 | 41 | 44 | 22 | 27 | 27 | ||
| 1DO9-24-10OG | M24X1.5 | 7/8"×14 | 16 | 24 | 42.5 | 46.5 | 24 | 30 | 27 | 40 S series | |
| 1DO9-30-12OG | M30X2 | 1.1/16"X12 | 20 | 28.3 | 49.8 | 53.5 | 30 | 36 | 32 | ||
| 1DO9-36-16OG | M36X2 | 1.5/16"X12 | 25 | 32.8 | 56.8 | 57.5 | 36 | 46 | 41 | ||
| 1DO9-42-20OG | M42X2 | 1.5/8"×12 | 30 | 36.2 | 62.7 | 59.5 | 41 | 50 | 50 | ||
| 1DO9-52-24OG | M52X2 | 1.718"×12 | 38 | 45.8 | 76.8 | 70.5 | 55 | 60 | 55 | 31.5 S series | |
| Note:In case if you are interested to order the adapter in complete set with cutting ring and nut it is necessary to insert suffix "RN"after our part no.,for example 1CO9-30-120G/RN. | |||||||||||
