Chemical-Grade PPH Socket Fusion Pipe End Caps & Plugs (S5 / 1.25MPa)

Seal and terminate your high-performance chemical, industrial, and fluid-treatment pipelines with our premium PPH socket fusion end caps, available at Atradesen.com. Crafted from heavy-duty, chemical-grade PPH (Polypropylene Homopolymer), these S5-rated end caps are engineered to withstand continuous operating pressures up to 1.25 MPa (181 PSI) and temperature loads ranging from -20°C to 100°C.

Designed to be welded together into a single, integrated molecular piping system, this non-toxic and robust series is highly suitable for terminating pipeline runs in acid pickling loops, electroplating lines, waste acid recovery, wastewater treatment, and chemical processing networks.

Superior Chemical Stability & Material Resilience

PPH (Polypropylene Homopolymer) is widely preferred in heavy chemical processing and environmental protection fields due to its exceptional resistance to chemical corrosion, acids, alkalis, and abrasive wear. These end caps are widely deployed to seal water lines, power plant cooling conduits, and food processing lines. They are completely non-toxic and odorless, maintaining high security and water purity throughout the entire system.

Precision Socket Fusion for a Seamless Molecular Bond

These cap fittings feature a socket-type internal cavity designed to slide over standard PPH pipes. The connection is made using standard hot-melt socket fusion welding, melting the outer pipe wall and the inner cap socket together to secure a completely seamless, leak-proof molecular system.

⚠️ Sizing & Socket Fusion Dimensions Guide

Nominal pipe dimensions are based on standard outer diameters. Please measure your pipe outer diameter (OD) and plan your socket depth (I) precisely using our dimensional guide:

• 20mm (DN15): Socket ID (d1) = 19.3mm, Socket Depth (I) = 16.0mm, Outer Diameter (D) = 28.0mm, Height (L) = 22.5mm.
• 25mm (DN20): Socket ID (d1) = 24.1mm, Socket Depth (I) = 18.0mm, Outer Diameter (D) = 34.0mm, Height (L) = 25.0mm.
• 32mm (DN25): Socket ID (d1) = 31.0mm, Socket Depth (I) = 20.0mm, Outer Diameter (D) = 43.0mm, Height (L) = 28.5mm.
• 40mm (DN32): Socket ID (d1) = 39.0mm, Socket Depth (I) = 22.0mm, Outer Diameter (D) = 53.0mm, Height (L) = 32.0mm.
• 50mm (DN40): Socket ID (d1) = 49.0mm, Socket Depth (I) = 25.0mm, Outer Diameter (D) = 66.5mm, Height (L) = 37.5mm.
• 63mm (DN50): Socket ID (d1) = 61.9mm, Socket Depth (I) = 29.0mm, Outer Diameter (D) = 84.5mm, Height (L) = 44.0mm.
• 75mm (DN65): Socket ID (d1) = 73.6mm, Socket Depth (I) = 31.5mm, Outer Diameter (D) = 95.0mm, Height (L) = 47.0mm.
• 90mm (DN80): Socket ID (d1) = 88.3mm, Socket Depth (I) = 36.0mm, Outer Diameter (D) = 113.5mm, Height (L) = 55.3mm.
• 110mm (DN100): Socket ID (d1) = 108.0mm, Socket Depth (I) = 42.0mm, Outer Diameter (D) = 138.5mm, Height (L) = 64.0mm.

Technical Specifications

Frequently Asked Questions (FAQ)

Q: What makes PPH superior to standard PPR for hot chemical lines?

A: PPH (均聚聚丙烯) is composed of pure propylene monomers polymerized in a highly uniform linear crystalline structure. This molecular alignment delivers significantly higher chemical resistance, impact stiffness, and high-temperature stress-crack resistance compared to PPR, preventing deterioration in waste acid recovery loops up to 100°C.

Q: How do I ensure a leak-proof connection using these end caps?

A: First, ensure both the pipe outer surface and the inner socket of the cap are clean and dry. Use a standard socket fusion hot-melt welding machine equipped with matching heating adaptors to heat both ends simultaneously. Once heated to the target temperature, quickly push the pipe into the socket depth (I) without twisting, and hold it firmly until the molecular bond solidifies.