The SIFFO PVC pipe coupling (PVC Solvent Cement coupling) is high-performance pipe fittings designed for seamless fluid transportation, using high-strength PVC-U material technology with solvent cement connection. The product complies with ISO 4435,ISO1452, DIN 8061 and ASTM D3034 standards and is widely used in water treatment, chemical pipelines, agricultural irrigation, municipal drainage and industrial fluid transportation. Its corrosion resistance, long service life and easy installation make it the first choice of customers in more than 50 countries.
Product Features
Chemical Fusion Sealing
PVC-specific solvent cement creates leak-proof joints with strength exceeding 80% of the pipe body, ideal for high-pressure and vibrating environments.
High-Performance PVC-U
Unplasticized PVC-U material offers impact resistance (≥20kJ/m²) and chemical stability for acids, alkalis, and organic solvents.
Ultra-smooth inner surface (roughness ≤0.008) minimizes flow resistance.
Cost Efficiency
Solvent bonding requires no special tools, reducing installation time by 50%.
Maintenance-free design lowers lifecycle costs.
Strong adaptability
Suitable for various environmental conditions, including underground burial, open-air installation and indoor pipeline systems, with an operating temperature range of -20℃ to 60℃.
Standardized production
Produced strictly in accordance with international standards ISO 1452, American Standards ASTM D3034 SCH40 & SCH80 Series, and national standards (GB/T 10002.1) to ensure product quality and interchangeability.
Application Areas
Municipal engineering: urban water supply and drainage systems, rainwater collection systems, sewage treatment systems.
Construction projects: high-rise building water supply and drainage, fire protection systems, air conditioning cooling water systems.
Industrial fields: chemical pipelines, electronics factory wastewater discharge, electroplating plant pipeline systems.
Agricultural irrigation: large farmland irrigation systems, greenhouse drip irrigation systems.
Mining engineering: mine drainage systems, ore dressing plant process pipelines.
FAQ
Q1: Is it suitable for hot water systems?
A1: It can be used for hot water systems ≤60℃, but long-term high temperature will affect the product life. It is recommended to use high temperature resistant models.
Q2: How to test after installation?
A2: It is recommended to perform a hydrostatic pressure test at 1.5 times the working pressure for ≥30 minutes. No leakage is qualified.
Q3: Product service life?
A3: Under normal conditions, the design service life is more than 50 years. The actual service life depends on the use environment and maintenance.
Q4: How to choose the right size?
A4: Choose according to the system design pressure, flow rate and medium characteristics. If you have any questions, please consult our technical support.
Q5. After-Sales Service
A5:Warranty: 5-year product warranty with lifetime support.
Multilingual Support: Installation videos/manuals in EN/FR/AR.
Product Information | |
product Name | PVC Coupling |
Raw Material | PVC-U |
Size | DN20-DN450, 1/4’’-20’’ |
Colour | Grey color or as customized |
How to Connect | Solvent Cement |
Standard | DIN8063,ISO 1452,ASTM D3034 |
Certification | ISO14001,SGS,ISO9001,CE,NSF |
Manufacture with strong OEM/ODM ability | |
Specification
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Size DN | Dimensions( mm ) | |||||
D0 | d1 | d2 | d | T | L | |
20 | 24.8 | 20.24 | 19.96 | 19 | 17 | 36 |
25 | 29.9 | 25.24 | 24.95 | 24 | 19.5 | 41.3 |
32 | 37.4 | 32.25 | 31.95 | 31 | 23 | 48.1 |
40 | 47 | 40.28 | 39.95 | 39 | 27 | 56.6 |
50 | 56.5 | 50.33 | 49.94 | 49 | 32 | 67 |
63 | 70.5 | 63.34 | 62.93 | 62 | 38.5 | 81 |
75 | 83.3 | 75.35 | 74.93 | 73.5 | 44.5 | 93 |
90 | 100 | 90.38 | 89.93 | 88.5 | 52 | 107.6 |
110 | 119.84 | 110.42 | 109.92 | 108 | 62 | 128.3 |
125 | 136.3 | 125.52 | 124.93 | 123 | 69.5 | 147.2 |
140 | 153.5 | 140.58 | 139.88 | 138 | 77 | 163.6 |
160 | 174.7 | 160.62 | 159.87 | 158 | 87 | 183.3 |
180 | 202.5 | 180.81 | 179.91 | 178.5 | 97 | 203.5 |
200 | 218.9 | 200.9 | 199.85 | 197 | 107 | 217 |
225 | 245.8 | 226.02 | 224.83 | 221 | 119.5 | 245 |
250 | 269.8 | 251.15 | 249.41 | 247 | 132 | 279 |
280 | 314.8 | 281.46 | 280.16 | 278 | 147 | 299.5 |
315 | 343.7 | 316.55 | 315.05 | 312 | 165 | 343 |
355 | 384.6 | 356.63 | 355.03 | 326 | 183.5 | 373 |
400 | 430.7 | 401.6 | 400 | 398.5 | 208 | 423 |