Product Description
The NDS 1520-07 is a 3/4-inch PVC swing check valve configured with socket-by-socket (SxS) end connections. It permits flow in one direction and closes automatically when flow reverses, protecting pumps, lines, and equipment from backflow damage. PVC construction resists corrosion and chemical attack, making this valve a reliable choice for irrigation, pool and spa, and general plumbing lines that handle water or mild chemical solutions. Licensed plumbers and irrigation technicians are the typical installers. Weighing 0.2 pounds, it is lightweight and straightforward to handle during installation in tight spaces.
This valve suits residential and light commercial applications where a compact, solvent-weld check valve is needed. Common installations include pump discharge lines, irrigation zone headers, pool equipment pads, and water treatment systems. The SxS socket configuration accepts standard Schedule 40 PVC pipe solvent-weld connections, making it compatible with widely used piping systems in both above-ground and in-ground installations.
Key Features
- Automatic swing-disc closure prevents backflow without manual operation
- PVC body resists corrosion, scale, and common chemical exposure
- Socket-by-socket (SxS) ends accept solvent-weld connections to standard PVC pipe
- 3/4-inch pipe size fits common residential and light commercial line sizes
- Lightweight at 0.2 pounds for easy handling in confined installations
Compatibility
Designed as an OEM-style replacement or new-installation swing check valve for 3/4-inch Schedule 40 PVC solvent-weld piping systems in irrigation, pool, spa, and general plumbing applications.
Installation Notes
Installation is performed by a licensed plumber or qualified irrigation technician. Shut off the water supply and relieve line pressure completely before cutting into any existing line. Use an approved PVC primer and solvent cement rated for the pipe schedule and service fluid, following IPC and local plumbing code requirements for joint cure time before pressurizing. Verify that the flow-direction arrow cast or printed on the valve body is oriented in the intended direction of flow before cementing joints.
Technical Specifications
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Connection Type: Socket x Socket (SxS) solvent-weld
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Pipe Size: 3/4 inch
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Body Material: PVC
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Weight: 0.2 pounds
UPC: 670686520071
Standard Information
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Brand: NDS
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Manufacturer Part Number: 1520-07
