Deks DGB450BL Stainless Steel Gibault Coupling for DN450 OD 488–512mm Pipe

Overview

The DEKS SS Gibault DGB450BL is designed to connect and repair pressurised pipelines such as water supply lines, irrigation systems, and industrial applications, and is suitable for DN450 pipes with an outside diameter of 488–512mm. Compared with shear banded couplings or standard pipe joiners, the Gibault coupling is constructed with a 316 stainless steel barrel with ductile iron end rings tightened by stainless steel bolts, making it suitable for pipeline systems with working pressures up to 16 bar.

The DEKS Gibault designs allow for connection with all types of pipe materials including ductile iron (DI), asbestos cement (AC), cast iron (CI), PVC, or steel pipes in pressure rated applications.

 The EPDM rubber gasket located on top of the stainless steel barrel forms a water tight seal when tightened and allows for angular deflection to accommodate minor pipeline movement due to vibration, ground settlement, or surface loading. The product is WSAA approved for use in Australia and complies with the requirements of modern pressurised pipeline systems.

Technical Details

• Manufacturer: Deks
• Model: DGB450BL (Long Barrel)
• Certifications: Water Authority Approval, WSAA Approval (suitable for pressurised water applications)
• Material:

• Barrel: 316 Stainless Steel
• End Rings: Ductile Iron (Epoxy coated)
• Bolts & Nuts: 316 Stainless Steel (M16)
• Gasket: EPDM Rubber
• Protective Cap: Included

• Seal Type: EPDM rubber sealing ring compressed by ductile iron end rings using 316 stainless steel bolts.
• Pipe Compatibility:

• Nominal Pipe Size: DN450
• Outside Diameter (OD) Range: 488–512mm
• Compatible Pipe Materials:

• – Ductile Iron (DI)
• – Asbestos Cement (AC)
• – Cast Iron (CI)
• – PVC
• – Steel Pipe

• Applications:

• Connecting or repairing pressure pipelines
• Suitable for drinking water, irrigation, industrial water lines
• Allows minor angular deflection in buried or above-ground installations
• Used where external pipe restraint is provided

• Dimensions

• Barrel Length (A): 216 mm
• Bolt Length (L): 340 mm
• End Ring OD (M): 637.5 mm
• Number of Bolts: 10 x M16
• Shear Band Qty: 1 × 316 Stainless Steel Pressure Rating: 1.6 Mpa (16 bar)

Package Contents

• DEKS SS Gibault DGB450BL
• EPDM Rubber Sealing Ring
• 316 Stainless Steel Bolts, Nuts & Washers (M16 × 10 sets)
• Protective Caps
• Weight: 40 kg