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VSJOCO
Chemical processing facilities face three persistent operational risks: unplanned downtime from pipe corrosion, safety incidents caused by fluid leakage, and inflated labor costs from complex installation. VSJOCO PPH socket fusion couplers address these challenges directly, engineered from PP-HL homopolymer polypropylene and manufactured to DIN, ISO, and GB standards. Available in sizes from DN20 to DN500, these couplers deliver consistent performance across demanding industrial environments.
PP-HL material withstands 98% of common acids, alkalis, salts, and organic solvents. Unlike metal alternatives, it does not rust or degrade when exposed to corrosive fluids, extending system service life and reducing replacement frequency. UV-stabilized formulations maintain performance for outdoor installations, with no measurable material breakdown over 10 years of continuous use.
Socket fusion creates a molecular-level bond between the coupler and pipe, eliminating the need for rubber gaskets that degrade over time. All units pass 1.6 MPa hydrostatic pressure testing, with a burst pressure rating of ≥4.8 MPa. This integrated connection eliminates leakage risks that can lead to environmental fines, production halts, and workplace safety hazards.
Weighing only 1/5 of equivalent steel couplers, these units cut transportation costs by 60% and eliminate the need for heavy lifting equipment during installation. A single technician can complete most connections, reducing on-site labor time by 65%. Modified polymer formulations retain impact resistance at temperatures as low as -20°C, preventing cracking during handling and operation.
Manufactured to DIN 8077/8078, ISO 15494, and GB/T 18742 specifications, these couplers are fully compatible with all major global PPH piping systems. They support multiple connection methods including socket fusion, butt fusion, electrofusion sleeves, and threaded connections. Custom options include variable lengths, reducing couplers, and angled connections (15°/30°/45°) to meet project-specific requirements.
Parameter | Specification |
|---|---|
Material | PP-HL Homopolymer Polypropylene |
Pressure Rating | PN10 (1.0 MPa) |
Size Range | DN20 - DN500 |
Connection Types | Socket Fusion, Butt Fusion, Electrofusion, Threaded |
Operating Temperature | -20°C to 95°C |
Standards Compliance | DIN 8077/8078, ISO 15494, GB/T 18742 |
Custom Options | Custom lengths, reducing couplers, angled connections |
Color | Natural (white) / Customized |
Ideal for connecting process lines in fine chemical and petrochemical facilities, handling sulfuric acid, hydrochloric acid, sodium hydroxide, and organic solvents.
Used in electroplating solution transfer, acid bath piping, and anodizing systems. The non-reactive material prevents metal ion contamination that would compromise coating quality.
Suitable for industrial wastewater pipelines, exhaust gas scrubbers, and desulfurization systems. Resists microbial corrosion and sludge abrasion for long-term operation.
Designed for ultra-pure water systems and chemical delivery lines in semiconductor manufacturing. Low extractable levels meet strict industry purity requirements.
With 15+ years of specialized PPH pipe fitting manufacturing experience, VSJOCO operates a comprehensive quality control process covering raw material inspection, in-production monitoring, and 100% finished product pressure testing. Standard sizes are kept in stock for 24-hour dispatch, while custom orders are completed within 7-10 business days. Our in-house engineering team provides technical support and on-site installation guidance, and all products come with a 12-month warranty and lifetime after-sales assistance.
Cut the pipe square and remove all burrs from the cut edge
Clean the pipe end and coupler inner surface to remove dirt and grease
Heat both components to 260±10°C using a calibrated fusion tool
Insert the pipe into the coupler without twisting, applying even pressure
Hold the assembly in place until fully cooled (cooling time varies by size)
Conduct a pressure test before placing the system into service
PPH offers enhanced chemical resistance and higher temperature tolerance than PP-R, making it better suited for industrial chemical processing environments.
Yes, SGS and TUV test reports are available upon request for all standard and custom products.
Under normal operating conditions within rated pressure and temperature ranges, service life exceeds 20 years.
Yes, we accept custom orders for non-standard sizes, angles, and configurations based on customer specifications.
Request a personalized quote today by filling out our online form or contacting our sales team directly. We also offer product catalog downloads and free sample requests for evaluation purposes. All inquiries receive a response within 24 hours on business days.
