Heavy Duty Grooved Piping System Rigid Coupling
Product Introduction
Heavy duty rigid coupling
The heavy duty cross-ribbed design provides added strength for high pressure applications.
Ductile iron construction.
Lead free orange paint (available galvanized)
Coupling Gasket: Grade E EPDM (Available Grade T Nitrile for petroleum products)
Approvals: UL, FM Approved, ASTM A536
Suitable for fire protection services, water supply systems and other process systems that require a higher work pressure.
Dimension Drawing| Nominal Size mm/in | Pipe O.D mm/in | Dimensions | Bolt | Working pressure Psi | ||
| ΦD | L | H | inch/mm | |||
| mm | mm | mm | ||||
| 25 | 33.7 | 55 | 97 | 45 | 3/8×1-1/2 (M10×40) | 500 |
| 1 | 1.327 | |||||
| 32 | 42.4 | 63.5 | 107.5 | 45 | 3/8×2-1/8 (M10×45) | |
| 11/4 | 1.669 | |||||
| 40 | 48.3 | 69 | 114 | 45 | ||
| 11/2 | 1.9 | |||||
| 65 | 76.1 | 101.2 | 144 | 46 | 1/2×2-3/8 (M12×60) | |
| 21/2 | 3 | |||||
| 80 | 88.9 | 117.4 | 157 | 46 | ||
| 3 | 3.5 | |||||
| 100 | 108 | 144.4 | 195 | 50 | 1/2×2-3/4 (M12×70) | |
| 4 | 4.25 | |||||
| 100 | 114.3 | 149.2 | 200 | 50 | ||
| 4 | 4.5 | |||||
| 125 | 133 | 172 | 231 | 50 | 5/8×3-1/8 (M16×80) | |
| 5 | 5.25 | |||||
| 125 | 139.7 | 180 | 235 | 50 | ||
| 5 | 5.5 | |||||
| 125 | 141.3 | 180.4 | 235 | 50 | ||
| 5 | 5.563 | |||||
| 150 | 159 | 203 | 268 | 50 | ||
| 6 | 6.25 | |||||
| 150 | 165.1 | 207 | 273 | 50 | ||
| 6 | 6.5 | |||||
| 150 | 168.3 | 209.4 | 272 | 50 | ||
| 6 | 6.625 | |||||
| 200 | 219.1 | 276 | 347 | 58 | 3/4×4-1/3 (M20×110) | |
| 8 | 8.625 | |||||
LEDE company design and manufacture grooved piping system jointing fittings, is a leading China heavy duty rigid pipe coupling manufacturer and supplier, provide pipe jointing and flow control products of fire protection system and water work system. There are different sizes of rigid pipe couplings for grooved piping system, made in accordance with UL, CE, ISO certificates, etc. Engineered with complete automation equipment and manufacturing expertise, LEDE company provides quality ductile iron rigid coupling as well as custom firefighting and water supply solutions based on the client needs.
