Best Vacuum Breakers for Dishwashers: Reliable Backflow Protection
When safeguarding your dishwasher and water supply, a dependable vacuum breaker is essential. These devices prevent backflow, protect drinking water, and help meet plumbing codes. This guide highlights five top vacuum breakers that pair well with residential and commercial dishwashing setups, outlining key features and installation considerations to help you choose.
| Product | Brand | Key Feature |
|---|---|---|
| CMA Dishmachines 03623.00 | CMA Dishmachines | 1/2″ repair kit; compact, food-service grade |
| CMA Dish Machines 00735.00 | CMA Dishmachines | 3/4″ size; Watts repair kit |
| Arrowhead PK1390 Replacement | Arrowhead | Self-draining design; durable brass construction |
| Self-Draining Vacuum Breaker PK1390 | Boltigen | Lead-free brass; 1-1/16″ female thread |
| LitOrange PK 1390 Replacement | LitOrange | Lead-free; self-draining with washers and tape |
CMA Dishmachines 03623.00 Vacuum Breaker Repair Kit
The CMA Dishmachines 03623.00 kit is designed for commercial dishwashing setups requiring a 1/2″ vacuum break repair solution. It is categorized as a food service supply with compact dimensions (approximately 4.8 cm L x 6.1 cm W x 15.5 cm H) and manufactured in the United States. This kit supports quick maintenance and helps prevent backflow into the water supply, aligning with kitchen sanitation standards.
CMA Dish Machines 00735.00 Vacuum Breaker Repair Kit
This 3/4″ repair kit from CMA Dish Machines is sized for larger dishwasher connections and is suitable for Watts-style systems. The package dimensions are around 4.01″ L x 5.01″ W x 7.01″ H, and the product is listed as a food service supply. It is designed to restore vacuum breaker functionality without extensive downtime, contributing to consistent dishwashing operations.
Arrowhead PK1390 Replacement Self Draining Vacuum Breaker
Arrowhead’s PK1390 features a self-draining design that minimizes water buildup and freezing risk in colder months. Built for durability, the unit uses high-quality materials to resist corrosion and maintain reliable backflow prevention. Installation is straightforward, designed to fit into existing systems without requiring specialized tools, making it a practical choice for many dishwashing installations.
Self-Draining Vacuum Breaker, Boltigen
Boltigen offers a 1-1/16″ size with fine threading and a 3/4″ garden hose outlet. It is designed to automatically drain after use to prevent freezing and to deliver safe, lead-free water. With a maximum operating pressure of 125 PSI and a temperature limit of 180°F, this model aims to balance robust performance with safety standards for potable water systems.
LitOrange 1 Pack Vacuum Breaker PK 1390 Replacement
LitOrange provides a lead-free brass vacuum breaker with a 1-1/16″ female inlet and 3/4″ GHT outlet. The device includes washers and sealing tape for an effective seal and features an anti-siphon mechanism and self-draining functionality to reduce backflow risk. It is rated for up to 125 psi and 180°F, making it suitable for garden and indoor spigot applications in some dishwasher-related environments.
High Sierra Solid Metal Vacuum Breaker For Handheld Showers
Although marketed for handheld showers, this solid brass vacuum breaker offers reliable backflow prevention with a polished chrome finish. It’s designed to meet certain plumbing standards and minimizes pressure loss through a robust brass housing. Suitable where extra durability is desired alongside common dishwasher-related backflow protection requirements.
Zurn P6000-1-A-CP Vacuum Breaker Tube Assembly
Zurn’s P6000-1-A-CP is a tube assembly designed for replacement parts of vacuum breaker systems. It emphasizes compatibility with older fixtures and maintenance-friendly design. This option is especially relevant if you’re updating or repairing a commercial dishwasher line that uses a standard 1-1/2″ flush tube configuration.
Hansgrohe External Vacuum Breaker, Chrome
Hansgrohe’s external vacuum breaker offers a stylish chrome finish and solid brass construction. While often used in bathroom fixtures, it demonstrates the broader market for backflow prevention devices with durable materials and straightforward installation, suitable for various water supply lines associated with dishwashers in home or light commercial settings.
Buying Guide: Key Purchase Considerations
- Application and compatibility: Confirm thread size (1/2″, 3/4″, 1-1/16″ etc.), inlet/outlet configuration, and whether a self-draining feature is required to prevent freezing in winter conditions.
- Material and safety: Lead-free brass is preferred for potable water. Check for compliance with relevant standards (for example, backflow prevention codes and ASSE certifications) and ensure the unit is rated for your operating pressure and temperature (commonly up to 125 psi and 180°F).
- Installation and maintenance: Look for easy installation with minimal tools, and consider units that offer simple drain or self-draining capabilities to reduce water stagnation and corrosion risk.
- Durability and environment: In commercial settings, choose stainless or solid brass housings for higher durability and longer service life in busy dishwashing operations.
- Warranty and replacement parts: Favor products with broad availability of replacement vacuum breakers and repair kits to extend system life and simplify maintenance.
- Code compliance and regional requirements: Some regions require specific backflow prevention standards for dishwashing lines; verify that the product meets local plumbing codes and inspection expectations.
When selecting a vacuum breaker for a dishwasher, balance the size, material quality, and ease of maintenance with the specific plumbing configuration and local code requirements. The options listed above encompass a range of sizes, from compact 1/2″ kits to larger 1-1/16″ and 1-1/2″ configurations, with both self-draining and standard designs. Prioritize lead-free construction and reliable drainage to maintain water safety and system longevity in busy kitchen environments.