S.H PPH Socket Fusion Union Joint | S5 1.25MPa Chemical-Grade Hot-Melt True Union Coupling Fitting (20mm - 110mm)

Xieyu S.H Premium PPH Socket Fusion Union Joints (S5 / 1.25MPa)

Connect, secure, and maintain your industrial, chemical, and fluid-treatment pipeline systems flexibly with our premium Xieyu S.H PPH socket fusion union joints, available at Atradesen.com. Manufactured by Xieyu (S.H / HIEH), a world-class developer of high-performance thermoplastic flow control, these heavy-duty PPH (Polypropylene Homopolymer) unions are engineered to withstand continuous operating pressures up to 1.25 MPa (181 PSI) and temperatures from -20°C to 100°C.

Featuring standard parallel socket depths and a heavy-duty outer union locking nut, this union coupler series is highly compatible with industrial chemical pipelines, acid pickling loops, electroplating lines, waste gas scrubbers, waste acid recovery, and wastewater treatment.

Three-Piece Detachable Union Design for Flexible Maintenance

In continuous industrial pipeline manifolds, joining pipe sections permanently with standard couplings means you must cut and destroy the pipes if a pump, sensor, or valve down the line needs maintenance. Our specialized True Union Joint features an integrated three-piece design: two symmetrical socket-fusion ends and a central heavy-duty threaded locking collar nut. Inside, a high-flexibility rubber O-ring seal is compressed to secure a watertight mechanical lock. This allows you to easily unscrew the union nut and separate the pipe runs cleanly without any cutting or pipe damage, significantly reducing long-term maintenance costs and pipeline downtime.

High-Integrity PPH Material Qualities

• Chemical & Abrasive Wear Resistance: Molded from high-purity Homopolymer Polypropylene, these S5-rated unions offer superior chemical resistance to highly corrosive media, organic solvents, strong alkalis, and mineral acids.
• Safe & Potable Certified: PPH is entirely non-toxic, lead-free, and odorless, making these socket fusion unions completely safe for drinking water pipelines, pharmaceutical loops, and food processing lines.
• Easy Molecular Fusion: The smooth, precision-machined internal socket ends are designed for hot-melt fusion welding, forming a unified, leak-proof molecular system.

⚠️ Sizing & Socket Fusion Guidelines

Nominal pipe dimensions are based on standard outer diameters. Please measure your pipe outer diameter (OD) before placing your order:

• Female Socket End (ID): The designated nominal size corresponds directly to the outer diameter (OD) of the pipe: 20mm (DN15), 25mm (DN20), 32mm (DN25), 40mm (DN32), 50mm (DN40), 63mm (DN50), 75mm (DN65), 90mm (DN80), and 110mm (DN100).
• Connection Methods: Requires standard socket fusion hot-melt welding connection. Ensure both pipe ends and internal sockets are cleaned and dried before heating to secure optimal molecular fusion. Alternatively, they can be welded using PPH plastic welding rods.

Technical Specifications

Frequently Asked Questions (FAQ)

Q: What is the main benefit of a PPH Union Joint over a standard socket coupling?

A: A standard socket coupling welds pipes into a permanent, non-separable run. If you need to service an inline pump, instrument, or valve, you would have to cut the pipes. A Union Joint allows you to simply unscrew the central locking nut by hand, cleanly separating the pipe runs without any pipe damage or cutting, making it the essential choice for modular maintenance.

Q: Can this PPH union joint withstand highly acidic environments?

A: Yes. PPH Homopolymer offers superior crystalline density, making it exceptionally resistant to pickling acids, waste acids, alkaline wash solutions, and high-purity industrial effluents up to 100°C. It is widely preferred over PVC in tough industrial environments.