· Certificate: FM/UL/3C/CE,etc.
· Standard: ANSI/UL 213C
· Housing Material: Ductile iron conforming to ASTM A-536, Grade 65-45-12.
· Rated pressure: 300~500PSI
· Surface: Hot dip galvanized/electrophoretic/epoxy powder painting
· Color: Variable colors for choice
Model 1NR is a reducing flexible coupling. Two ends can connect to different diameter of steel pipe. The middle of the coupling with a steel plate to avoid telescope by vertical installation.
The structure ensures lower cost and faster installation under the premise of ensuring the strength.
Our Reducing Flexible Couplings are designed to accommodate Grooved Pipe Joints, offering a seamless transition between pipes of different diameters while maintaining flexibility and durability. These couplings are ideal for applications where a reduction in pipe size is required without compromising the integrity of the system.
Dikai couplings are engineered to provide a secure connection between two pipes with different sizes, ensuring a perfect fit and optimal flow. The use of Grooved Pipe Joints technology allows for quick and easy installation, reducing downtime and labor costs.
| SIZE | DIMENSION | BOLTS SIZE | ||||||
| mm | X-mm | Y-mm | Z-mm | X-inch | Y-inch | Z-inch | MODEL.No. | inch |
| 42*33 | 64 | 104 | 45 | 2.52 | 4.10 | 1.77 | M10X55 | 3/8X2 1/8 |
| 48*42 | 71 | 109 | 45 | 2.80 | 4.29 | 1.77 | M10X55 | 3/8X2 1/8 |
| 60*42 | 85 | 125 | 46 | 3.35 | 4.93 | 1.81 | M10X55 | 3/8X2 1/8 |
| 60*48 | 83 | 125 | 46 | 3.27 | 4.93 | 1.81 | M10X55 | 3/8X2 1/8 |
| 73*60 | 100 | 146 | 50 | 3.94 | 5.75 | 1.97 | M12X75 | 1/2X3 |
| 76*60 | 103 | 149 | 47 | 4.06 | 5.87 | 1.85 | M12X75 | 1/2X3 |
| 76*73 | 104 | 149 | 47 | 4.10 | 5.87 | 1.85 | M12X75 | 1/2X3 |
| 89*48 | 116 | 160 | 49 | 4.57 | 6.30 | 1.93 | M12X75 | 1/2X3 |
| 89*60 | 116 | 161 | 49 | 4.57 | 6.34 | 1.93 | M12X75 | 1/2X3 |
| 89*73 | 116 | 161 | 49 | 4.57 | 6.34 | 1.93 | M12X75 | 1/2X3 |
| 89*76 | 116 | 161 | 49 | 4.57 | 6.34 | 1.93 | M12X75 | 1/2X3 |
| 114*48 | 144 | 200 | 51 | 5.67 | 7.88 | 2.01 | M16X90 | 5/8X3 1/2 |
| 114*60 | 145 | 200 | 51 | 5.71 | 7.88 | 2.01 | M16X90 | 5/8X3 1/2 |
| 114*73 | 144 | 201 | 52 | 5.67 | 7.92 | 2.05 | M16X90 | 5/8X3 1/2 |
| 114*76 | 144 | 201 | 51 | 5.67 | 7.92 | 2.01 | M16X90 | 5/8X3 1/2 |
| 114*89 | 144 | 201 | 52 | 5.67 | 7.92 | 2.05 | M16X90 | 5/8X3 1/2 |
| 165*114 | 199 | 271 | 51 | 7.84 | 10.68 | 2.01 | M20X115 | 3/4X4 1/2 |
| 168*73 | 203 | 275 | 52 | 8.00 | 10.84 | 2.05 | M20X115 | 3/4X4 1/2 |
| 168*89 | 204 | 274 | 51 | 8.04 | 10.80 | 2.01 | M20X115 | 3/4X4 1/2 |
| 168*114 | 202 | 273 | 51 | 7.96 | 10.76 | 2.01 | M20X115 | 3/4X4 1/2 |
| 216*165 | 259 | 344 | 62 | 10.20 | 13.55 | 2.44 | M22X135 | 7/8X5 3/8 |
| 219*89 | 264 | 345 | 62 | 10.40 | 13.59 | 2.44 | M22X135 | 7/8X5 3/8 |
| 219*114 | 264 | 345 | 65 | 10.40 | 13.59 | 2.56 | M22X135 | 7/8X5 3/8 |
| 219*165 | 262 | 347 | 62 | 10.32 | 13.67 | 2.44 | M22X135 | 7/8X5 3/8 |
| 219*168 | 262 | 349 | 63 | 10.32 | 13.75 | 2.48 | M22X135 | 7/8X5 3/8 |
Size Reduction: Allows for the connection of pipes with different diameters, ensuring efficient fluid transfer.
Flexibility: The flexible nature of these couplings allows for movement and vibration absorption, reducing stress on the piping system.
Easy Installation: Grooved Pipe Joints facilitate quick installation without the need for welding or special tools.
Leak-Proof: The couplings are designed with a secure seal to prevent leaks, ensuring the safety and reliability of the system.
Durable Construction: Made from high-quality materials, these couplings are built to withstand the pressures and demands of industrial applications.
Reducing Flexible Couplings are widely used in applications such as:
HVAC Systems: For connecting supply and return air ducts of different sizes.
Plumbing: To connect water pipes of varying diameters in residential and commercial settings.
Industrial Processes: In processes where fluid flow needs to be controlled or adjusted.
Fire Protection: For connecting fire sprinkler systems with varying pipe sizes.
