Heavy Duty Grooved Piping System Rigid Coupling

| Product Name | Heavy Duty Grooved Piping System Rigid Coupling |
| Model No. | M1 |
| Specifications | Nominal sizes: 50–300 mm | Higher pressure ratings than standard coupling |
| Category | Grooved Piping System Pipe Couplings |
| Manufacturer | Shandong Lede Machinery Co., Ltd. |
Product Introduction
The heavy duty rigid coupling is engineered for high-pressure, high-demand pipeline environments. Its robust housing design provides maximum joint rigidity and is suitable for industrial, mining, and large-diameter piping systems.
Features
- ✓Heavy duty ductile iron construction
- ✓Maximum joint rigidity
- ✓For large-diameter, high-pressure applications
- ✓ASTM A536 material compliance
Technical Data
Model: M1
| Nominal Size (mm/in) | Pipe O.D (mm/in) | ΦD (mm) | L (mm) | H (mm) | Bolt (inch/mm) | Working Pressure (Psi) |
|---|---|---|---|---|---|---|
| 25 / 1" | 33.7 / 1.327 | 55 | 97 | 45 | 3/8×1-1/2 (M10×40) | 500 |
| 32 / 1¼" | 42.4 / 1.669 | 63.5 | 107.5 | 45 | 3/8×2-1/8 (M10×45) | 500 |
| 40 / 1½" | 48.3 / 1.9 | 69 | 114 | 45 | 3/8×2-1/8 (M10×45) | 500 |
| 65 / 2½" | 76.1 / 3 | 101.2 | 144 | 46 | 1/2×2-3/8 (M12×60) | 500 |
| 80 / 3" | 88.9 / 3.5 | 117.4 | 157 | 46 | 1/2×2-3/4 (M12×70) | 500 |
| 100 / 4" | 108 / 4.25 | 144.4 | 195 | 50 | 1/2×2-3/4 (M12×70) | 500 |
| 100 / 4" | 114.3 / 4.5 | 149.2 | 200 | 50 | 1/2×2-3/4 (M12×70) | 500 |
| 125 / 5" | 133 / 5.25 | 172 | 231 | 50 | 5/8×3-1/8 (M16×80) | 500 |
| 125 / 5" | 139.7 / 5.5 | 180 | 235 | 50 | 5/8×3-1/8 (M16×80) | 500 |
| 125 / 5" | 141.3 / 5.563 | 180.4 | 235 | 50 | 5/8×3-1/8 (M16×80) | 500 |
| 150 / 6" | 159 / 6.25 | 203 | 268 | 50 | 5/8×3-1/8 (M16×80) | 500 |
| 150 / 6" | 165.1 / 6.5 | 207 | 273 | 50 | 5/8×3-1/8 (M16×80) | 500 |
| 150 / 6" | 168.3 / 6.625 | 209.4 | 272 | 50 | 5/8×3-1/8 (M16×80) | 500 |
| 200 / 8" | 219.1 / 8.625 | 276 | 347 | 58 | 3/4×4-1/3 (M20×110) | 500 |
Dimension Drawing





