· Certificate: FM/UL/3C/CE, etc.
· Standard: ANSI/UL 213C
· Housing Material: Ductile iron conforming to ASTM A-536, Grade 65-45-12.
· Bolt & Nut: Carbon steel
· Gasket: EPDM, nitrile, silicone rubber, etc.
· Rated pressure: 300~500PSI
· Surface: Hot dip galvanized/electrophoretic/epoxy powder painting
· Color: Variable colors for choice
Style 1NH heavy duty flexible coupling provides flexible connection by the gap between pipe groove and coupling key.
Unique design allows both axial and radial movement, suitable for pipeline with flexibility under intermediate pressure.
Our Heavy Duty Flexible Couplings are engineered to meet the demands of Grooved Pipe Joints in various industrial applications. These couplings are designed to provide a dependable method of joining pipes, allowing for angular and linear deflection, thermal expansion and contraction, and misalignments of the pipe.
Built with high-performance materials, Dikai couplings can act as an "expansion joint", enabling linear and angular movement of the pipes when properly installed. This flexibility is crucial for high-pressure services where moderate or extreme conditions are prevalent.
| SIZE | DIMENSION | BOLTS SIZE | ||||||
| mm | X-mm | Y-mm | Z-mm | X-inch | Y-inch | Z-inch | MODEL.No. | inch |
| 33 | 59 | 92 | 46 | 2.32 | 3.62 | 1.81 | M10X55 | 3/8X2 1/8 |
| 42 | 68 | 109 | 45 | 2.68 | 4.29 | 1.77 | M12X60 | 1/2X2 3/8 |
| 48 | 74 | 115 | 46 | 2.92 | 4.53 | 1.81 | M12X60 | 1/2X2 3/8 |
| 60 | 89 | 131 | 47 | 3.51 | 5.16 | 1.85 | M12X60 | 1/2X2 3/8 |
| 76 | 106 | 153 | 49 | 4.18 | 6.03 | 1.93 | M12X70 | 1/2X2 3/4 |
| 89 | 120 | 166 | 49 | 4.73 | 6.54 | 1.93 | M12X70 | 1/2X2 3/4 |
| 114 | 149 | 205 | 51 | 5.87 | 8.08 | 2.01 | M16X90 | 5/8X3 1/2 |
| 140 | 177 | 240 | 52 | 6.97 | 9.46 | 2.05 | M20X110 | 3/4X4 3/8 |
| 165 | 204 | 270 | 52 | 8.04 | 10.64 | 2.05 | M20X115 | 3/4X4 1/2 |
| 168 | 208 | 273 | 53 | 8.20 | 10.76 | 2.09 | M20X115 | 3/4X4 1/2 |
| 216 | 263 | 343 | 61 | 10.36 | 13.51 | 2.40 | M22X135 | 7/8X5 3/8 |
| 219 | 267 | 347 | 62 | 10.52 | 13.67 | 2.44 | M22X135 | 7/8X5 3/8 |
| 273 | 322 | 426 | 67 | 12.69 | 16.78 | 2.64 | M24X150 | 1X5 7/8 |
| 325 | 376 | 481 | 67 | 14.81 | 18.95 | 2.64 | M24X150 | 1X5 7/8 |
High Pressure Rating: Capable of withstanding pressures up to 68.9 Bar (1,000 psi), depending on pipe size and wall thickness.
Vibration Absorption: The rubber coating on our flexible couplings contributes to the damping effect, protecting the specially wound thread inserts and ensuring smooth torque transmission.
Easy Installation: Grooved Pipe Joints allow for quick and easy installation without the need for welding or threading, reducing labor time and costs.
Leak-Proof Connections: Utilizing EPDM gaskets ensures a tight seal, preventing leaks and maintaining system integrity.
Versatility: Compatible with various pipe materials, including steel, stainless steel, and ductile iron, making them suitable for a wide range of applications.
Heavy Duty Flexible Couplings are widely used in applications such as fire protection systems, plumbing systems, HVAC systems, industrial piping, and irrigation systems. They are also ideal for use in situations where high torque transmission and vibration dampening are required.
Our Heavy Duty Flexible Couplings offer a cost-effective solution for pipe connections compared to welded or threaded alternatives. They provide flexibility for easy modifications and expansions of piping systems, ensuring long-term reliability and performance.
