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Factory Purchase Union – 121UC Pipe Fitting

Product Overview

The IFANPRO Union – 121UC is a precision-engineered plumbing component designed for easy assembly, disassembly, and maintenance in PEX systems. It features a female-threaded union connection (1/2″F or 3/4″F) and a PEX-compatible socket, enabling seamless integration with fixtures and pipes. Ideal for residential, commercial, and industrial applications, this union ensures leak-free performance and long-term durability.

Category PEX Pipe And Fittings

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Prodcuts Description

1. Key Specifications (mm)

Model	Connection Type	Dimensions
US16×1/2F	16mm PEX (socket) × 1/2″ female union thread	–
US18×1/2F	18mm PEX (socket) × 1/2″ female union thread	–
US20×1/2F	20mm PEX (socket) × 1/2″ female union thread	–
US20×3/4F	20mm PEX (socket) × 3/4″ female union thread	–

Material: Brass (union thread) + corrosion-resistant alloy (socket body) + EPDM O-rings (sealing).
Pressure/Temperature: 16 bar, -20°C to 110°C (compatible with water, gas, and mild chemicals).

2. Core Features

Union Design for Maintenance:
- Allows tool-free disassembly (via the union nut), simplifying valve replacement or system servicing without cutting PEX pipes.
Dual Connectivity:
- PEX Socket: Securely connects to PEX pipes (crimp/press/expansion fittings, leak-free).
- Female Union Thread: Directly attaches to fixtures with 1/2″ or 3/4″ female threads, ensuring compatibility.
Leak-Proof Sealing: Blue EPDM O-rings provide bubble-tight seals, critical for potable water and high-pressure systems.
Durability: Brass and alloy construction withstands corrosion and wear (10+ year lifespan).

3. Applications

Residential: Kitchen/bathroom plumbing (e.g., US20×3/4F for water heater connections), enabling easy maintenance.
Commercial HVAC: Ventilation/heating systems (e.g., US20×1/2F for medium setups), where quick repairs are essential.
Industrial: Machinery/irrigation (e.g., US20×3/4F for pump connections), leveraging the union’s maintenance-friendly design.

4. Why Choose IFANPRO?

Quality: ISO 9001/SGS certified, factory-direct pricing (visit ifanpro.com).
Support: OEM/ODM options, 24/7 technical assistance, global shipping (DDP/FOB).
Reliability: Trusted by 500+ clients worldwide, proven in diverse climates.