Grooved Piping System Reducing Flexible Coupling
Product Introduction
A reducing coupling in a grooved piping system is designed to provide a restrained piping connection while reducing (or increasing) pipe sizes. It is a transition accessory to match different sized pipes through a single device. After the pipe ends are grooved, a rubber gasket that is suitable for the system is stretched over the pipe ends. The coupling segments are then placed over the gasket, and the nuts and bolts are fastened, resulting in a secure, and leak free joint.
Features
Ductile iron construction
Lead free orange paint
Conforms to ASTM A536 standards
UL Listed, FM Approved
| Nominal Size mm/in | Pipe O.D mm/in | Dimensions | Bolt | Working pressure Psi | ||
| ΦD | L | H | inch/mm | |||
| mm | mm | mm | ||||
| 50×40 | 60.3×48.3 | 82 | 130 | 46 | 3/8×2-1/8 （ M10×55 ） | 300 |
| 2x11/2 | 2.375×1.9 | |||||
| 65×25 | 73×33.7 | 97 | 151 | 46 | ||
| 21/2x1 | 2.875×1.327 | |||||
| 65×32 | 73×42.4 | 97 | 151 | 46 | ||
| 21/2x11/4 | 2.875×1.669 | |||||
| 65×40 | 73×48.3 | 97 | 151 | 46 | ||
| 21/2x11/2 | 2.875×1.9 | |||||
| 65×50 | 73×60.3 | 97 | 151 | 46 | ||
| 21/2x2 | 2.875×2.375 | |||||
| 65×50 | 76.1×60.3 | 107 | 151 | 46 | ||
| 21/2x2 | 3×2.375 | |||||
| 80×40 | 88.9×48.3 | 112 | 166.6 | 46 | 1/2×2-5/8 (M12×65) | |
| 3x11/2 | 3.5×1.9 | |||||
| 80×50 | 88.9×60.3 | 123.6 | 166.6 | 46 | ||
| 3×2 | 3.5×2.375 | |||||
| 80×65 | 88.9×73.0 | 123.6 | 166.6 | 46 | ||
| 3x21/2 | 3.5×2.875 | |||||
| 80×65 | 88.9×76.1 | 123.6 | 166.6 | 46 | ||
| 3x21/2 | 3.5×3 | |||||
| 100×50 | 114.3×60.3 | 151.2 | 200 | 50 | ||
| 4×2 | 4.5×2.375 | |||||
| 100×65 | 114.3×73.0 | 151.2 | 200 | 50 | ||
| 4x21/2 | 4.5×2.875 | |||||
| 100×65 | 114.3×76.1 | 151.2 | 200 | 50 | ||
| 4x21/2 | 4.5×3.0 | |||||
| 100×80 | 114.3×88.9 | 151.2 | 200 | 50 | ||
| 4×3 | 4.5×3.5 | |||||
| 125×100 | 141.3×114.3 | 167 | 230 | 52 | 5/8×3-1/8 (M16×80) | |
| 5×4 | 5.563×4.5 | |||||
| 150×80 | 165.1×88.9 | 197 | 275 | 52 | ||
| 6×3 | 6.5×3.5 | |||||
| 150×100 | 165.1×114.3 | 197 | 275 | 52 | ||
| 6×4 | 6.5×4.5 | |||||
| 150×65 | 168.3×73 | 199.4 | 275 | 52 | ||
| 6×21/2 | 6.525×2.875 | |||||
| 150×80 | 168.3×88.9 | 199.4 | 275 | 52 | ||
| 6×3 | 6.525×3.5 | |||||
| 150×100 | 168.3×114.3 | 199.4 | 275 | 52 | ||
| 6×4 | 6.525×4.5 | |||||
| 150×100 | 168.3×141.3 | 199.4 | 275 | 52 | ||
| 6×5 | 6.625×5.563 | |||||
| 200×150 | 219.1×168.3 | 258 | 336 | 58 | 3/4×4-1/3 (M20×110) | |
| 8×6 | 8.625×6.525 | |||||
LEDE company design and manufacture grooved piping system jointing fittings, is a leading China flexible pipe reducing coupling manufacturer and supplier, provide pipe jointing and flow control products of fire protection system and water work system. There are different sizes of flexible reducing 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 flexible coupling as well as custom firefighting and water supply solutions based on the client needs.
