NDS 1720C15 1-1/2 in. Clear True Union Swing Check Valve - Slip

NDS 1720C15 1-1/2 in. Clear True Union Swing Check Valve - Slip

Brand: NDS | SKU: 1720C15

Product Overview

The NDS 1720C15 is a 1-1/2-inch clear true-union swing check valve designed to allow flow in one direction while helping prevent reverse flow. Slip-union connections provide a removable valve body for easier access during cleaning or service, while the clear housing makes the internal swing mechanism visible without immediately disassembling the valve.

Key Features

• 1-1/2 in. nominal size
• Swing-style check mechanism
• Clear valve body
• True-union configuration supports service access
• Slip union connections

Technical Specifications

• Size: 1-1/2 in.
• Valve type: Swing check
• Connection: Slip true unions
• Body: Clear

Compatibility & Installation Notes

Install in the correct flow direction and orientation for the system. Confirm operating conditions and piping compatibility before installation.

Frequently Asked Questions

Why is the valve body clear?

The clear body allows visual inspection of the internal swing-check mechanism and flow area.

What is the advantage of true unions?

The union connections allow the valve body to be removed for cleaning or service without cutting it out of the piping.

Is this a swing check valve?

Yes. Model 1720C15 is identified as a swing-style check valve.

Why Buy From Big Frog Supply?

NDS 1720C15 combines a visible swing-check mechanism with true-union serviceability for a removable 1-1/2-inch check-valve installation.

Clear PVC
True Union

1-1/2" S x S
Length 8-1/4"