Quick Flexible Grooved Coupling
- Nominal diameter: DN50~DN200 (2“~8”)
- Material: ductile iron, stainless steel (304/316L)
- Working pressure: ≤16bar
We have been manufacturing and selling pipe fittings for more than 20 years, selling low prices and producing high quality pipe fittings are our obvious advantages, welcome to inquire.
Quick-connect flexible grooved coupling is a quick-connect device designed for piping systems. It combines the groove mechanical interface with the flexible connection characteristics and is widely used in fire protection, industrial water supply, heating, ventilation and air conditioning (HVAC) and petrochemical piping systems.
Quick Flexible Grooved Coupling
Dimension Table
| Nominal Diameter (DN) | Pipe OD (mm) | Groove size (width x depth) | Bolt specification (torque/N-m) | Working Pressure (bar) |
| DN50 | 60.3 | 10.5×2.5 37 | M16（60~80）37 | 34.5 23 |
| DN80 | 88.9 | 12.7×3.0 37 | M20（100~120）37 | 25 23 |
| DN100 | 114.3 | 14.2×3.5 37 | M20（120~150）37 | 20.7 23 |
| DN150 | 168.3 | 15.0×3.8 27 | M24（150~180）27 | 16 23 |
| DN200 | 219.1 | 16.0×4.0 37 | M27（180~220）37 | 12 37 |
Advantages
- Quick installation: The joint uses a slot-type clamp for mechanical connection, which does not require complicated tools or welding, saving 70% of construction time.
- It can reduce the influence of thermal expansion and contraction and vibration, and allow axial displacement (±5~10mm) and angular deflection (≤3°).
- Suitable for Sch40/Sch80 pipes and supports working pressures up to 34.5 bar
- Corrosion Resistance: Ductile Iron (DI) or Stainless Steel (304/316L) available for seawater, chemical and other harsh environments.
- Reliable sealing: EPDM/NBR/FKM seals with a temperature range of -40°C~150°C, suitable for water, oil and gas media.