PETFLEX Clamp
Flexible Stainless Steel Pipe Coupling Clamp
The PETFLEX Clamp is designed to provide a flexible, leak-proof connection for pipelines that face misalignment, vibration, or movement. With EPDM or NBR elastomeric seals, it adapts to pipe deflections while maintaining a tight seal—making it a reliable solution for steel, PVC, and GRP pipes in multiple industries.
More About Clamps
A Flexible Stainless Steel Pipe Coupling Clamp is a mechanical jointing device designed to connect two pipe ends securely. It consists of:
Stainless steel shell (SS 304/316)
ensures strength & corrosion resistance.
Elastomer gasket (EPDM, NBR, or Viton)
provides tight leak-proof sealing.
Bolts & fasteners
for controlled torque tightening.
Unlike rigid joints, it allows axial movement, angular misalignment, and vibration absorption, making it suitable for pipelines exposed to stress.
Corrosion- Resistant Stainless Steel – SS 304/316 for long life in harsh environments.
Flexible Jointing – absorbs vibration, expansion, and slight misalignment.
Leak-Proof Sealing – high-quality elastomer gasket ensures tight connections.
Quick Installation – no welding, hot work, or special tools required.
Reusability – clamps can be removed and reinstalled during maintenance.
Standards Compliance – manufactured as per ISO 9001, ASTM A240, EN 681-1.
Safe & Cost-Effective – reduces downtime by up to 40% compared to welding.
Applications
Oil & Gas Pipelines
- High-pressure resistance up to 16 bar.
- Withstands offshore conditions and refinery environments.
- Used in pipeline repairs, compressor lines, and fuel transfer systems.
Water & Wastewater Treatment
- Prevents leaks in pressurized water distribution.
- Resists chlorine and chemical-treated water.
- Easy to install in underground water mains.
Chemical Processing
- Stainless steel body resists acids, alkalis, and solvents.
- Ideal for transporting hazardous and corrosive liquids.
Construction & Building Services
- Used in commercial plumbing and fire protection lines.
- Quick repair method for burst or leaking pipes.
Marine & Shipbuilding
- Strong protection against saltwater corrosion.
- Absorbs vibrations from ship engines.
- Installed in ballast water, fuel, and cooling systems.
Additional Data
| Parameter | Details |
|---|---|
| Product Name | Flexible Stainless Steel Pipe Coupling Clamp |
| Material | Stainless Steel 304 / 316 |
| Gasket Options | EPDM (water), NBR (oil/fuel), Viton (chemicals) |
| Size Range | DN 25 – DN 1000 (1” – 40”) |
| Pressure Rating | Up to 16 bar (size-dependent) |
| Temperature Range | -20°C to +180°C |
| Bolt Torque Range | 40–120 Nm (depending on clamp size) |
| Compliance | ISO 9001, ASTM A240, EN 681-1 |
Additional Data
| Part No | .Nominal Diameter (DN) | Pipe OD (mm) | Clamp Width (mm) | Pressure Rating | Weight (kg) |
|---|---|---|---|---|---|
| PRO-FLEX-025 | DN 25 | 33–36 mm | 60 mm | 16 bar | 0.8 |
| PRO-FLEX-050 | DN 50 | 60–63 mm | 80 mm | 16 bar | 1.2 |
| PRO-FLEX-100 | DN 100 | 110–114 mm | 100 mm | 16 bar | 2.5 |
| PRO-FLEX-150 | DN 150 | 160–168 mm | 120 mm | 16 bar | 3.8 |
| PRO-FLEX-200 | DN 200 | 219–225 mm | 150 mm | 10 bar | 6.2 |
| PRO-FLEX-300 | DN 300 | 323–330 mm | 180 mm | 10 bar | 9.5 |
| PRO-FLEX-400 | DN 400 | 426–434 mm | 200 mm | 10 bar | 12.8 |
| PRO-FLEX-500 | DN 500 | 530–538 mm | 220 mm | 8 bar | 16.4 |
| PRO-FLEX-600 | DN 600 | 630–640 mm | 250 mm | 8 bar | 19.7 |
Comparision Table
A wastewater treatment plant in Dubai faced frequent leakage in a DN 300 underground pipeline. Traditional welding repairs caused 2 days of downtime each time
. After switching to Flexible Stainless Steel Pipe Coupling Clamps, the plant reduced repair time to 4 hours per incident, saving over $20,000 annually in maintenance costs.
Comparison with Alternatives
| Method | Pros | Cons |
|---|---|---|
| Welding Joints | Permanent, strong | Costly, requires skilled labor, downtime |
| Rubber Couplings | Low cost, quick | Low pressure rating, short lifespan |
| Flexible Stainless Steel Pipe Coupling Clamp | Leak-proof, flexible, corrosion-resistant, reusable | Slightly higher initial cost |
Size Information
Size Chart – Flexible Stainless Steel Pipe Coupling Clamp
| Part No. | Nominal Diameter (DN) | Pipe OD Range (mm) | Clamp Width (mm) | Pressure Rating (bar) | Weight (kg) |
|---|---|---|---|---|---|
| PTCLSL-025 | DN 25 (1”) | 33 – 36 | 60 | 16 | 0.8 |
| PTCLSL-032 | DN 32 (1¼”) | 42 – 45 | 70 | 16 | 1.0 |
| PTCLSL-040 | DN 40 (1½”) | 48 – 51 | 70 | 16 | 1.1 |
| PTCLSL-050 | DN 50 (2”) | 60 – 63 | 80 | 16 | 1.2 |
| PTCLSL-065 | DN 65 (2½”) | 75 – 79 | 90 | 16 | 1.6 |
| PTCLSL-080 | DN 80 (3”) | 89 – 93 | 100 | 16 | 2.0 |
| PTCLSL-100 | DN 100 (4”) | 110 – 114 | 100 | 16 | 2.5 |
| PTCLSL-125 | DN 125 (5”) | 140 – 144 | 120 | 16 | 3.2 |
| PTCLSL-150 | DN 150 (6”) | 160 – 168 | 120 | 16 | 3.8 |
| PTCLSL-200 | DN 200 (8”) | 219 – 225 | 150 | 10 | 6.2 |
| PTCLSL-250 | DN 250 (10”) | 273 – 280 | 160 | 10 | 8.0 |
| PTCLSL-300 | DN 300 (12”) | 323 – 330 | 180 | 10 | 9.5 |
| PTCLSL-350 | DN 350 (14”) | 355 – 365 | 180 | 10 | 11.2 |
| PTCLSL-400 | DN 400 (16”) | 426 – 434 | 200 | 10 | 12.8 |
| PTCLSL-450 | DN 450 (18”) | 478 – 490 | 220 | 8 | 15.0 |
| PTCLSL-500 | DN 500 (20”) | 530 – 538 | 220 | 8 | 16.4 |
| PTCLSL-600 | DN 600 (24”) | 630 – 640 | 250 | 8 | 19.7 |
You can use a Flexible Stainless Steel Pipe Coupling Clamp, which provides a fast, leak-proof solution without welding or hot work.
Yes. Made from SS 316, it resists saltwater corrosion and is widely used in shipbuilding & offshore projects.
Yes, they are removable and reusable, unlike welded joints.
Depending on application, they last 15–25 years with minimal maintenance.
Yes, a torque chart and installation manual are included with every shipment.
