Folding Type · No Welding · Universal Pipe Repair
LCH Folding Type Pipe Repair Clamps for Quick, Fire-Safe Pipeline Maintenance
Working pressure 6~32bar, sizes 15A~2000A, AISI304/316/316L stainless steel per DIN86128-1/2 and AWWA — suitable for any pipe material.
Overview
LCH folding type pipe repair clamp is one type of device that is used to repair the pipe breaks, impact damage, holes, longitudinal and corrosion, which features with flexible connection, strong & anti-corrosive, no need welding, no fire risk, space saving, suitable for any pipe, easy installation. The pipe repair clamp is widely applicable to many types of pipelines, such like gas pipeline, water pipes, oil pipes, compressed air pipes, pvc pipes, and in series of fields of water supply, gas supply, ship building, offshore oil platform and water treatment. Flowspec Luokai can manufacture the LCH folding type pipe repair clamp according to DIN86128-1/2, AWWA standard.
1. Features
- Flexible connection
- Strong & anti-corrosive
- No need welding, no fire risk
- Space saving, easy installation
- Suitable for any pipe
2. Technical Specifications
- Working pressure: 6~32bar
- Size: 15A-2000A (other sizes available upon request)
- Materials: AISI304, AISI316, AISI316, AISI316L, AISI3220S
- Pressure testing: 1.5 x PB
3. Standards
- Complies with DIN86128-1/2, AWWA (other sizes available upon request)
4. Applications
- Applicable pipe: crude oil pipeline, gas pipeline, natural gas pipeline, water supply & drainage pipeline, fuel oil pipeline, airline pipeline, automobile pipeline, lubricating oil pipeline, sludge pipeline, suction pipeline, water power pipeline, sea water pipeline, fresh water pipeline, turbine pipeline, air conditioning pipeline, fire fighting pipeline, ventilation pipeline, compressed air pipeline
- Applicable field: surface pipe, underground engineering, ship building, offshore oil platform, water supply, coal gas supply, natural gas supply, power, industries, sewage treatment & maintenance
- Applicable temperature: -20℃~+120℃

Materials
Compatible pipe materials: Steel, Cast iron / Ductile Iron, Asbestos Cement, Concrete, PVC, HDPE.
| Part | Material |
|---|---|
| Shell | 304 Stainless steel (other materials available upon request) |
| Sidebars | 304 Stainless steel (other materials available upon request) |
| Bolts | 304 Stainless steel (other materials available upon request) |
| Gasket Bridge | 304 Stainless steel (other materials available upon request) |
| Gasket | EPDM (-20~+130℃ water, air, dust, steam) |
| Gasket | NBR (-20~+100℃ natural gas, coal gas, oil, other hydrocarbon) |
| Gasket | SILICON (-75~+200℃ anti-exposure, coal gas, oil, other hydrocarbon) |
| Gasket | VITON (-95~+300℃ anti-heat, anti-corrosive) |

Dimensions — LCH-S
| Model | D1 (mm) | D2 (mm) | ΦB | ΦA (mm) | L (mm) | I (mm) | T (mm) | W.P. (bar) | Pre-tightening Force (bar) |
|---|---|---|---|---|---|---|---|---|---|
| LCH-S 15A | 21.7 | 21-23 | M6 × 45L × 2 | 10 | 57 | 33 | 0.8 | 18 | 30-60 |
| LCH-S 20A | 27 | 26-28 | M6 × 45L × 2 | 10 | 57 | 33 | 0.8 | 18 | 30-60 |
| LCH-S 25A | 34 | 33-35 | M6 × 45L × 2 | 10 | 57 | 33 | 0.8 | 18 | 30-60 |
| LCH-S 32A | 42.7 | 42-44 | M8 × 55L × 2 | 12 | 57 | 33 | 0.8 | 18 | 50-80 |
| LCH-S 40A | 48.6 | 47-49 | M8 × 55L × 2 | 12 | 57 | 33 | 0.8 | 18 | 50-80 |
| LCH-S 50A | 60.5 | 58-61 | M10 × 75L × 2 | 16 | 80 | 46 | 1 | 16 | 80-100 |
| LCH-S 65A | 76.3 | 75-78 | M10 × 75L × 2 | 16 | 80 | 46 | 1 | 16 | 80-100 |
| LCH-S 80A | 89.1 | 88-92 | M12 × 90L × 2 | 18 | 107 | 65 | 1.2 | 14 | 120-150 |
| LCH-S 100A | 114.3 | 113-117 | M12 × 90L × 2 | 18 | 107 | 65 | 1.2 | 14 | 120-150 |
| LCH-S 125A | 139.8 | 138-142 | M14 × 110L × 2 | 22 | 116 | 71 | 1.5 | 12 | 180-250 |
| LCH-S 150A | 165.2 | 163-167 | M14 × 110L × 2 | 22 | 116 | 71 | 1.5 | 12 | 180-250 |
| LCH-S 200A | 216.3 | 214-219 | M16 × 130L × 2 | 28 | 155 | 80 | 2 | 10 | 250-400 |
| LCH-S 250A | 267.3 | 265-270 | M16 × 130L × 2 | 28 | 155 | 80 | 2 | 10 | 250-400 |
| LCH-S 300A | 318.5 | 316-321 | M16 × 140L × 2 | 28 | 155 | 80 | 2 | 8 | 500-800 |
| LCH-S 350A | 355.6 | 353-358 | M16 × 140L × 2 | 28 | 155 | 80 | 2 | 8 | 500-800 |
| LCH-S 400A | 406.4 | 403-408 | M18 × 150L × 2 | 30 | 155 | 80 | 2 | 6 | 800-1000 |
| LCH-S 450A | 457.2 | 455-461 | M18 × 150L × 2 | 30 | 155 | 80 | 2 | 6 | 800-1000 |
| LCH-S 500A | 508 | 505-512 | M18 × 150L × 2 | 30 | 155 | 80 | 2 | 6 | 1000-1200 |
Dimensions — LCH-L
| Model | D1 (mm) | D2 (mm) | ΦB | ΦA (mm) | L (mm) | I (mm) | T (mm) | W.P. (bar) | Pre-tightening Force (bar) |
|---|---|---|---|---|---|---|---|---|---|
| LCH-L 15A | 21.7 | 21-23 | M8 × 45L × 3 | 12 | 100 | 70 | 0.8 | 18 | 30-60 |
| LCH-L 20A | 27.0 | 26-28 | M8 × 45L × 3 | 12 | 100 | 70 | 0.8 | 18 | 30-60 |
| LCH-L 25A | 34.0 | 33-35 | M8 × 45L × 3 | 12 | 100 | 70 | 0.8 | 18 | 30-60 |
| LCH-L 32A | 42.7 | 42-44 | M8 × 55L × 3 | 12 | 100 | 70 | 0.8 | 18 | 50-80 |
| LCH-L 40A | 48.6 | 47-49 | M8 × 55L × 3 | 12 | 100 | 70 | 0.8 | 18 | 50-80 |
| LCH-L 50A | 60.5 | 58-61 | M10 × 75L × 3 | 16 | 139 | 46 | 1.0 | 16 | 80-100 |
| LCH-L 65A | 76.3 | 75-78 | M10 × 75L × 3 | 16 | 139 | 46 | 1.0 | 16 | 80-100 |
| LCH-L 80A | 89.1 | 88-92 | M12 × 90L × 32 | 18 | 203 | 65 | 1.2 | 14 | 120-150 |
| LCH-L 100A | 114.3 | 113-117 | M12 × 90L × 3 | 18 | 203 | 65 | 1.2 | 14 | 120-150 |
| LCH-L 125A | 139.8 | 138-142 | M14 × 110L × 3 | 22 | 204 | 71 | 1.5 | 12 | 180-250 |
| LCH-L 150A | 165.2 | 163-167 | M14 × 110L × 3 | 22 | 204 | 71 | 1.5 | 12 | 180-250 |
| LCH-L 200A | 216.3 | 214-219 | M16 × 130L × 3 | 28 | 255 | 80 | 2.0 | 10 | 250-400 |
| LCH-L 250A | 267.3 | 265-270 | M16 × 130L × 3 | 28 | 255 | 80 | 2.0 | 10 | 250-400 |
| LCH-L 300A | 318.5 | 316-321 | M16 × 140L × 3 | 28 | 255 | 80 | 2.0 | 8 | 500-800 |
| LCH-L 350A | 355.6 | 353-358 | M16 × 140L × 3 | 28 | 255 | 80 | 2.0 | 8 | 500-800 |
| LCH-L 400A | 406.4 | 403-408 | M18 × 150L × 3 | 30 | 255 | 80 | 2.0 | 6 | 800-1000 |
| LCH-L 450A | 457.2 | 455-461 | M18 × 150L × 3 | 30 | 255 | 80 | 2.0 | 6 | 800-1000 |
| LCH-L 500A | 508.0 | 505-512 | M18 × 150L × 3 | 30 | 255 | 80 | 2.0 | 6 | 1000-1200 |


