NDS 1520-20 2 in. Swing Check Valve - Slip x Slip

NDS 1520-20 2 in. Swing Check Valve - Slip x Slip

Brand: NDS | SKU: 1520-20

Product Overview

The NDS 1520-20 is a 2-inch slip-by-slip swing check valve designed to help prevent water from reversing direction through a compatible piping system. Its swing-style internal valve opens with forward flow and closes when flow moves back toward the source.

Key Features

• 2 in. nominal size
• Slip x slip connections
• Swing-style check mechanism
• Helps limit reverse flow

Common Uses

Residential and light-commercial drainage systems where compatible NDS components are used to collect, control or route water.

Technical Specifications

• Connection size: 2 in.
• Connection type: Slip x slip
• Valve type: Swing check

Compatibility & Installation Notes

Verify flow direction, pipe compatibility and installation orientation before solvent-weld assembly. Select the valve based on the actual piping system and operating conditions.

Frequently Asked Questions

What size is NDS 1520-20?

It is the 2-inch slip-by-slip model.

Does it stop reverse flow?

The swing check mechanism is designed to close when flow reverses, helping prevent backflow through the line.

Why Buy From Big Frog Supply?

NDS 1520-20 provides a straightforward 2-inch slip check-valve option for drainage and water-handling layouts that require one-way flow control.

Inlet Thread: Slip x Slip

Connection Size: 2