PETFLEX Clamps
Flexible Stainless Steel Pipe Coupling Clamp
Industrial pipeline systems face constant challenges: leaks, vibration, thermal expansion, and corrosion. In critical industries like oil & gas, water treatment, marine, and chemicals, downtime caused by pipeline failure can be extremely costly.
Traditional joining methods such as welding or flanges require skilled labor, expensive downtime, and heavy equipment. For modern projects, engineers need a faster, flexible, and maintenance- friendly solution.
That’s where the Flexible Stainless Steel Pipe Coupling Clamp comes in — a high-performance mechanical jointing solution that ensures leak-proof, durable, and corrosion-resistant pipeline connections without welding.
Additional Data
| Property | Details |
|---|---|
| Clamp Material | Stainless Steel (Grade 304 / 316L) |
| Sealing Element | EPDM / NBR Elastomer |
| Pipe Compatibility | Steel, PVC, GRP, Cast Iron |
| Flexibility | Axial and Angular |
| Temperature Resistance | -20°C to +180°C (depending on seal type) |
| Pressure Rating | Up to 16 bar |
| Bolt/Nut Material | Stainless Steel A2 / A4, zinc-coated available |
| Corrosion Resistance | High, suitable for marine & chemical applications |
| Testing | Hydrostatic pressure, vibration, and leakage tests |
| Certifications | ISO 9001, DIN, ASTM standards on request |
Why Choose PETFLEX Clamps
Axial & Angular Flexibility – Ideal for misaligned or vibrating pipelines
Durable EPDM/NBR Seal – Chemical & heat resistant
Quick & Safe Installation – No welding, no hot work permits
Tested Performance – Hydrostatic & vibration tested before dispatch
Corrosion-Resistant Stainless Steel – Long service life in harsh environments
Low Maintenance – Easy to install, inspect, and replace
Cost-Effective – Faster repairs with reduced downtime
Additional Data
| Property | Details |
|---|---|
| 1. Material Specifications | |
| Clamp Housing | Stainless Steel (AISI 304 / 316 optional) |
| Sealing Element | EPDM / NBR (temperature & chemical resistance ranges) |
| Bolts & Fasteners | Stainless Steel A2 / A4 with anti-corrosion coating |
| Temperature Range | EPDM: –30°C to +120°C NBR: –20°C to +80°C |
| Pressure Rating | Up to 10 bar (varies with size) |
| 2. Performance Data | |
| Axial Deflection (mm) | e.g., ±5–12 mm depending on DN size |
| Angular Deflection (°) | 2°–5° |
| Vacuum Resistance | Suitable for partial vacuum (state max value) |
| Vibration Absorption | Tested for industrial pipelines |
| 3. Standards & Certifications | |
| ISO 9001:2015 certified manufacturing WRAS Approval (for potable water – if applicable) DNV / ABS marine approval (if available or optional) ASTM / EN standards compliance | |
| 4. Installation & Maintenance | |
| Step-by-step installation guide with torque values Recommended pipe surface preparation Typical installation time (e.g., <10 minutes) Maintenance-free design | |
| 5. Chemical Resistance Chart | |
| Provide a simple chart showing compatibility of EPDM vs NBR with | Water, Seawater, Oils, Fuels, Acids, Alkalis, Chemicals |
Applications
Automotive
Exhaust, fuel, and coolant lines
Oil & Gas
Pipelines under vibration & shifting ground
Chemical Processing
Corrosion-resistant sealing solutions
Marine & Offshore
Saltwater pipelines & shipbuilding
Water Supply & Treatment
Above-ground & buried pipelines
General Engineering
Versatile pipe coupling applications
Additional Data
| Comparison Tables | |||
|---|---|---|---|
| A. Seal Options | |||
| Seal Material | Temp. Resistance | Chemical Resistance | Applications |
| EPDM | -20°C to +120°C | Excellent for water, air, mild chemicals | Water supply, HVAC, marine |
| NBR | -20°C to +180°C | Excellent for oils, hydrocarbons, fuels | Oil & gas, chemical processing |
| B. PETFLEX Clamp vs Welding vs Rigid Coupling | |||
| Feature | PETFLEX Clamp | Welding | Rigid Coupling |
| Installation | Fast, no hot work | Time-consuming, requires permits | Moderate |
| Flexibility | Axial & angular | Rigid | Limited |
| Maintenance | Easy replacement | Difficult | Moderate |
| Cost | Low/Medium | High | Medium |
| Reusability | Yes | No | Limited |
Additional Data
| Part No. | Clamp Size (DN) | Pipe OD Range (mm) | Clamp Width (mm) | Sealing Range (mm) | Bolt Qty. | Recommended Torque (Nm) |
|---|---|---|---|---|---|---|
| PTHG451-050 | DN 50 (2") | 60 – 75 | 80 | ±4 | 2 | 30–35 |
| PTHG451-080 | DN 80 (3") | 88 – 110 | 100 | ±5 | 2 | 35–40 |
| PTHG451-100 | DN 100 (4") | 110 – 135 | 120 | ±6 | 3 | 40–45 |
| PTHG451-150 | DN 150 (6") | 160 – 185 | 150 | ±7 | 3 | 45–55 |
| PTHG451-200 | DN 200 (8") | 210 – 235 | 180 | ±8 | 4 | 50–60 |
| PTHG451-300 | DN 300 (12") | 315 – 340 | 220 | ±10 | 6 | 70–80 |
| PTHG451-400 | DN 400 (16") | 420 – 450 | 250 | ±12 | 6 | 80–90 |
