AquaMatic K520-PC Adapter 1/2-Inch Solvent Weld (Pair)

Ensure smooth, leak-free piping connections and simplify your manifold installations with the Genuine AquaMatic K520-PC Solvent Weld Adapter Pair (SKU: 1079549). Manufactured by AqMatic (formerly Pentair), this set of two high-quality plastic piping adapters is specifically engineered for 1/2-Inch K520 Series Composite Body Diaphragm Valves.

These adapters feature a standard slip/socket configuration, allowing you to solvent weld standard PVC or ABS pressure pipes directly to your AquaMatic control valves. They are perfect for commercial water softeners, deionization skids, reverse osmosis systems, and chemical dosing lines where secure, robust plumbing joints are critical.

⚠️ Important Compatibility Requirement

Please Note: To successfully fit and secure the K520-PC adapter faces to the valve body, you will need matching union nuts. Depending on your valve configuration and material preference, you must pair these adapters with either the K520-109 or K520-111 Retaining ring adn nut assembly. Ensure you have these components on hand to complete your installation.

Key Features & Benefits

• Seamless Solvent Welding: Engineered with precise socket depths and tolerances for standard 1/2" pressure piping, ensuring excellent glue bonding and permanent, leak-free joints.

• Corrosion-Resistant Composite Material: Manufactured from high-grade, glass-filled thermoplastics (PVC/Noryl blend) that withstand aggressive water chemistry, acids, caustics, and harsh industrial environments.

• Convenient Union Design Interaction: Works in tandem with the K520 valve's signature union-style end connections, allowing for quick valve removal or isolation for servicing without cutting the main piping line.

• Sold as a Complete Matching Pair: Every package includes two socket adapters, giving you everything needed to plumb both the inlet and outlet ports of a single 1/2" K520 valve.

Comprehensive Kit Parts List

The K520-PC Pack is supplied as a matching pair of plumbing connectors to outfit a single valve station. Each kit includes:

• 2 x 1/2" Solvent Weld Plastic Adapters (Item No. 19): The precision-molded socket connectors that bond directly to your plastic pipe run.

• 2 x Face O-Rings: High-durability sealing gaskets that isolate the joint face to ensure absolute, drip-tight performance under high line pressures.

• (Note: Companion Union Nuts like the K520-109 or K520-111 are sold separately).

Technical Specifications

Professional Installation Advice

When assembling your plastic manifold systems, always use an appropriate, high-strength PVC or multi-purpose cement and primer suited for industrial pressure lines.

Slide your K520-109 or K520-111 union nuts onto the pipe or adapter before gluing the adapter into place. Hand-tighten the union nuts first to ensure the face seals are completely square and seated properly before applying final mechanical leverage. If you need to perform internal valve repairs down the line, these union connections allow you to slip the valve out effortlessly. Remember to use the specialized AquaMatic 520-Z Assembly Tool for internal component servicing to avoid damaging the composite body threads.