---
product_id: 96065044
title: "Watts SD-3 Series 3/8\" Stainless Steel Dual Check Valve Backflow Preventer for Beverage Machine, Male NPT Inlet x Male NPT Outlet, Atmospheric Vent, Wye Strainer, Vertical or Horizontal Install"
brand: "watts"
price: "190961 Ft"
currency: HUF
in_stock: true
url: https://www.desertcart.hu/products/96065044-watts-sd-3-series-3-8-stainless-steel-dual-check
store_origin: HU
region: Hungary
---

# 3/8" stainless steel build dual check valve with atmospheric vent 150 psi max pressure rating Watts SD-3 Series 3/8" Stainless Steel Dual Check Valve Backflow Preventer for Beverage Machine, Male NPT Inlet x Male NPT Outlet, Atmospheric Vent, Wye Strainer, Vertical or Horizontal Install

**Brand:** watts
**Price:** 190961 Ft
**Availability:** ✅ In Stock

## Summary

> 💧 Keep your drinks flowing flawlessly with Watts’ ultimate backflow defense!

## Quick Answers

- **What is this?** Watts SD-3 Series 3/8" Stainless Steel Dual Check Valve Backflow Preventer for Beverage Machine, Male NPT Inlet x Male NPT Outlet, Atmospheric Vent, Wye Strainer, Vertical or Horizontal Install by watts
- **How much does it cost?** 190961 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/96065044-watts-sd-3-series-3-8-stainless-steel-dual-check)

## Best For

- watts enthusiasts

## Why This Product

- Trusted watts brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Durable stainless steel construction resists corrosion and handles up to 130°F operating temperature.
- • **Versatile Installation:** Supports both vertical and horizontal setups to fit any beverage machine configuration.
- • **Smart Failure Indicator:** Atmospheric vent offers a clear visual cue if the second check valve fails—no guesswork needed.
- • **Reliable Backflow Protection:** Prevents reverse flow of carbonated water and CO2, safeguarding your potable water supply.
- • **Optimized for Beverage Machines:** Specifically engineered for post-mix carbonated beverage and dispensing equipment for tea and coffee.

## Overview

The Watts SD-3 Series 3/8" Stainless Steel Dual Check Valve Backflow Preventer is a corrosion-resistant, high-pressure valve designed to prevent backflow in carbonated beverage machines. Featuring dual check valves with an atmospheric vent for failure indication, a wye strainer, and flexible installation options, it ensures safe, reliable operation in demanding beverage dispensing environments.

## Description

Watts SD-3 Series 3/8" Stainless Steel Dual Check Valve Backflow Preventer for Beverage Machine, Male NPT Inlet x Male NPT Outlet, Atmospheric Vent, Wye Strainer, Vertical or Horizontal Install

## Features

- BACKFLOW PREVENTION: The Watts Dual Check Valve Backflow Preventer is designed to prevent the reverse flow of water (i.e. carbon dioxide gas and carbonated water) from entering your potable water supply due to backpressure.
- FOR BEVERAGE MACHINE: Capable of handling continuous or intermittent pressure applications, this backflow preventer is designed for carbonated beverage machines and is specifically ideal for use on post-mix carbonated beverage equipment and dispensing equipment for tea and coffee.
- COMPREHENSIVE FEATURES: Equipped with internal rubber components, this 3/8" backflow preventer includes an atmospheric port that provides visual indication of failure of the second check, as well as a wye strainer. It also has male NPT inlet x male NPT outlet end connections and can be installed either vertically or horizontally.
- DURABLE DESIGN: This preventer is constructed from stainless steel for corrosion resistance and durability. It has a maximum temperature of 130° F (54° C) and can handle a maximum pressure of 150 psi (10.3 bar).
- EVERY DROP COUNTS: Water. It's in our name and close to our hearts. Since 1874, Watts Water Technologies has been delivering innovative technologies that make the world's most precious resource safe and accessible. Everything we design is made to keep the Earth's most precious resource safer, cleaner, and more useful for our customers. Our family of brands offers one of the most varied product lines in the world, with world-class, water-related solutions.

## Product Details

- **Material:** Stainless Steel
- **Brand:** Watts
- **Item dimensions L x W x H:** 2.5 x 2.5 x 5.06 inches
- **Exterior Finish:** Rubber,Stainless-steel
- **Inlet Connection Type:** National Pipe Tapered
- **Outlet Connection Type:** MNPT
- **Maximum Operating Pressure:** 150 Pound per Square Inch
- **Number of Ports:** 2
- **Outlet Connection Size:** 3/8 Inches
- **Specification Met:** ASSE

## Images

![Watts SD-3 Series 3/8" Stainless Steel Dual Check Valve Backflow Preventer for Beverage Machine, Male NPT Inlet x Male NPT Outlet, Atmospheric Vent, Wye Strainer, Vertical or Horizontal Install - Image 1](https://m.media-amazon.com/images/I/716XLa6DqYL.jpg)
![Watts SD-3 Series 3/8" Stainless Steel Dual Check Valve Backflow Preventer for Beverage Machine, Male NPT Inlet x Male NPT Outlet, Atmospheric Vent, Wye Strainer, Vertical or Horizontal Install - Image 2](https://m.media-amazon.com/images/I/71xAaK-9ZCL.jpg)
![Watts SD-3 Series 3/8" Stainless Steel Dual Check Valve Backflow Preventer for Beverage Machine, Male NPT Inlet x Male NPT Outlet, Atmospheric Vent, Wye Strainer, Vertical or Horizontal Install - Image 3](https://m.media-amazon.com/images/I/81Dv5dm58YL.jpg)
![Watts SD-3 Series 3/8" Stainless Steel Dual Check Valve Backflow Preventer for Beverage Machine, Male NPT Inlet x Male NPT Outlet, Atmospheric Vent, Wye Strainer, Vertical or Horizontal Install - Image 4](https://m.media-amazon.com/images/I/71rOJDBMTrL.jpg)
![Watts SD-3 Series 3/8" Stainless Steel Dual Check Valve Backflow Preventer for Beverage Machine, Male NPT Inlet x Male NPT Outlet, Atmospheric Vent, Wye Strainer, Vertical or Horizontal Install - Image 5](https://m.media-amazon.com/images/I/616TGBwBgJL.jpg)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-02-08*