NDS | 1790-20 | 2" Compact True Union Spring Check Valve

This 2" compact true union spring check valve is designed to allow water to flow in one direction while preventing backflow in pool, spa, irrigation, and other pressurized piping systems. Its compact white PVC body is well suited for installations where plumbing space is limited.

The valve features 2" IPS slip x slip connections, a 1/2 lb stainless steel spring, and removable union ends for convenient servicing without cutting the valve from the plumbing line.

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Key Features

• 2" IPS slip x slip connections

• Compact true union design

• 1/2 lb stainless steel spring

• Durable PVC Type I construction

• EPDM washer and O-ring

• Rated for 200 PSI static pressure at 72°F

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Product Overview

The compact true union spring check valve provides automatic one-way flow control for compatible pool, spa, irrigation, and plumbing systems. Water pressure opens the spring-loaded valve during normal flow, while the spring closes the valve when flow stops to help prevent reverse water movement.

The 1790-20 features a compact 7-3/8" body length and 2" IPS connections, making it useful where installation space is limited. Both union ends can be unscrewed so the valve body can be removed from the plumbing line for inspection or service.