Indus Industrial Group supplies Self-Anchoring Metal-Grip Tensile Restraint Flange Adaptors engineered in nominal sizes from DN50 (2") to DN600 (24") in working pressure class PN16. Conforming to EN 14525 and ISO 14525 standards, these full-restraint mechanical adaptors feature an integrated hardened brass or stainless steel gripper ring with serrated teeth that bite into the exterior wall of polyethylene (PE80/PE100) and PVC pipes. This delivers complete end-load tensile restraint against hydraulic blow-off forces, eliminating the need for expensive concrete thrust blocks in pressurized distribution networks across Iraq.
| Pricing Verification | Commercial Quote on Demand (RFQ) |
| Nominal Diameters | DN50 to DN600 (2" to 24") Dedicated PE/PVC Diameters |
| Flange Drilling Pattern | EN 1092-2 PN10 / PN16 / ISO 7005-2 (Optional ANSI B16.5 Class 150) |
| Working Pressure Rating | PN16 (16 Bar continuous) / Proof Hydrostatic Test 24 Bar |
| Tensile Restraint Standard | Type 1 Full End-Load Restrained according to EN 14525 (Class A) |
| Body & Flange Casting | Ductile Iron EN-GJS-450-10 / EN-GJS-500-7 |
| Gripper Mechanism | Segmented Hardened Brass / Stainless Steel Teeth with NBR Carrier Ring |
| Sealing Gasket | High-Elasticity EPDM Rubber (WRAS / EN 681-1 Potable Water Certified) |
| Corrosion Protection | Electrostatically Applied Fusion-Bonded Epoxy (FBE) min 250 μm |
| Internal Stiffener | Supplied with precision AISI 304/316 internal expansion support sleeve |
| Governing Standards | EN 14525 / ISO 14525 / EN 545 / WIS 4-24-01 |
| Sector & Division | Water & Wastewater (Div 01) |
| Parent Category | Wide-Tolerance Couplings & Restraint Adapters |
Connecting HDPE PE100 distribution mains to flanged gate valves, butterfly valves, fire hydrants, pump station manifolds, and water meters in Baghdad, Basra, Erbil, Sulaymaniyah, and Najaf.
Connecting plain-ended plastic pipes (HDPE and PVC) to flanged valves, hydrants, or steel fittings in pressurized municipal water networks presents a major hydraulic risk: under internal working pressure and water hammer surges, the smooth plastic pipe naturally tends to pull out of standard mechanical fittings. In crowded urban underground streets across Baghdad, Basra, and Erbil, pouring massive concrete thrust blocks to anchor pipe joints is often physically impossible due to adjacent gas lines, power cables, and sewer conduits.
Indus Self-Anchoring Metal-Grip Restraint Flange Adaptors solve this challenge with an integrated mechanical anchoring system. As the coupling flange bolts are tightened, a conical compression chamber forces a segmented gripper ring inward. The hardened metal teeth bite into the outer surface of the PE/PVC pipe, while an adjacent heavy EPDM elastomeric gasket compresses radially to provide a drop-tight hydraulic seal. The higher the internal pressure and tensile pull-out load, the deeper the gripping teeth anchor into the pipe wall.
Cast from high-tensile ductile iron (EN-GJS-450-10) with 250 microns of fusion-bonded epoxy coating, the companion flange is drilled to standard EN 1092-2 PN10/PN16 or ANSI Class 150 bolt patterns. Supplied with internal stainless steel reinforcement liners (stiffeners) to prevent plastic pipe creep, Indus maintains comprehensive stocks in Erbil, Baghdad, and Basra.
The adaptor contains a segmented ring of hardened metal teeth set in a conical chamber. When the pipe experiences axial pull-out forces from internal water pressure, the teeth are drawn deeper into the cone, biting harder into the plastic pipe wall and locking it rigidly in place.
Yes. Conforming to EN 14525 Type 1 tensile restraint, this fitting fully resists hydraulic thrust blow-off forces up to 16 Bar without requiring external concrete anchor blocks, saving immense civil excavation and curing time.
Polyethylene pipe exhibits viscoelastic creep under sustained mechanical radial pressure. The stainless steel stiffener is inserted into the pipe bore to maintain circular shape and prevent the pipe wall from necking inward over time.
