12 best pressure vacuum breaker
A pressure vacuum breaker (PVB) is a type of backflow prevention device commonly used in plumbing and irrigation systems to protect the potable water supply from contamination. It's an essential component in maintaining water quality and safety. Here's what you need to know about pressure vacuum breakers:
Function: The primary function of a pressure vacuum breaker is to prevent the backflow of potentially contaminated water from entering the clean water supply. It does this by creating an air gap, which prevents water from flowing backward into the public water supply.
Components: A typical pressure vacuum breaker consists of a housing that contains a spring-loaded check valve and an air inlet valve.The check valve prevents water from flowing backward into the supply line, while the air inlet valve allows air to enter the system, breaking any vacuum that could siphon water back into the supply.
Installation: Pressure vacuum breakers are usually installed above ground and at a point higher than the highest point in the irrigation system. This elevated positioning ensures that water cannot flow back into the clean water supply.
Usage: Pressure vacuum breakers are commonly used in irrigation systems, particularly for outdoor sprinkler systems. They are also found in industrial settings where there's a risk of chemicals or contaminants entering the water supply.
Maintenance: Regular maintenance and testing are crucial to ensure the proper functioning of pressure vacuum breakers. They should be inspected annually and may need to be rebuilt or replaced if they fail to meet required standards.
Legal Requirements: Many local building codes and regulations mandate the use of backflow prevention devices like pressure vacuum breakers in certain plumbing and irrigation systems to protect public water supplies.
Certification: When installing a pressure vacuum breaker, it's essential to use a device that meets industry standards and is certified by relevant authorities to ensure its effectiveness in preventing backflow.
In summary, a pressure vacuum breaker is a critical component in plumbing and irrigation systems designed to prevent the contamination of clean water supplies by creating an air gap that prevents the reverse flow of water. Proper installation, maintenance, and compliance with local regulations are essential for the effective use of pressure vacuum breakers.
Below you can find our editor's choice of the best pressure vacuum breaker on the market
Febco 765EBV 1 inch NPT Bronze Pressure Vacuum Breaker 765-1 BV
Product description
The Series 765 Pressure Vacuum Breakers are used to protect against health hazard and non-health hazard back siphon-age conditions in industrial plants cooling towers laboratories laundries swimming pools and lawn sprinkler systems. The lightweight poppet seals air opening under minimum flow conditions and the engineered plastic bonnet protects the valve body from freeze damage. End connections - NPT ANSI/ASME B1.20.1. Not lead free.
- 1" 765 Pressure Vacuum Breaker 765EBV
- Bronze body for durability
- Designed for minimum head loss
- 1 inch inlet female threaded, NPT outlet thread, quarter-turn ball valves
Febco 765CBV 1/2 inch Pressure Vacuum Breaker with Quarter Turn Shutoff,
febco
Product description
Series 765 pressure vacuum breakers are designed to be installed to provide protection against back siphonage of toxic or non-toxic liquids. They feature a durable bronze body and a check valve and air opening port in one assembly. Maximum working pressure: 150Psi (10.3 bar).
- All Bronze body for durability. One check valve and an air opening for in one assembly
- Lightweight poppet seals air opening under minium flow conditions
- Simple service procedures. All internal parts Serviceable in line from the top of the unit
- Designed for minimum head loss
RK1-720A Repair Kit Replace for Zurn Compatible for 72A Pressure Vacuum Breakers-1Inch
ShineUs
Product description
Pressure Vacuum Breaker Assembly# RK1-720A is a time-tested design that delivers years of unparalleled service in high hazard backsiphonage conditions, making it the valve of choice for professional landscape contractors. Body Material Rubber, Plastic and Steel, Temp. Range 33 Degrees to 110 Degrees F, For Use With 72A Pressure Vacuum Breakers, Includes Plastic Washer, O-Ring, Spring.
- Temp. Range: 33 Degrees to 110 Degrees F
- Includes Plastic Washer, O-Ring, Spring etc.
- Please confirm the model #RK1-720A before you buy.
- For Use With 72A Pressure Vacuum Breakers.
Watts 3/4" Bronze Freeze Resistant Pressure Vacuum Breaker, Quarter Turn Shutoff, Tee Handles
Watts
Product description
This 3/4 inch freeze resistant pressure vacuum breaker prevents the reverse flow of polluted water from entering into the potable water supply due to backsiphonage. It consists of bronze body construction, silicone rubber check valve disc, plastic check valve seat, stainless steel springs, a bonnet with silicone rubber O-ring seal, a lightweight plastic disc float, a built-in relief valve to protect the internal components and the body from freezing, tee handle shutoffs, and test cocks for winterization draining. It is ideal in continuous pressure health hazard applications where exposure to sudden freezing conditions such as on irrigation systems and industrial process water systems can occur. The maximum pressure is 150 psi (10. 3 bar) and the minimum pressure is 15 psi (55 kPa).
- Bronze body for durability
- Unique built-in relief valve relieves pressure caused by ice formation
- Female NPT inlet and outlet with quarter turn shutoffs
- Easy internal access
Zurn 3/4" 710 Pressure Vacuum Breaker Assembly (34-710)
Zurn
Product description
The 3/4" Zurn Wilkins 710 Pressure Vacuum Breaker Assembly protects against backsiphonage of contaminated water into the potable water supply where a potential high health hazard exists. With fewer parts and a lightweight, compact body, the Zurn Wilkins 710 Pressure Vacuum Breaker Assembly is a low-maintenance, cost-effective solution for high-hazard irrigation applications – commercial or residential. It also features a maximum pressure of 150 psi and a temperature range of 33°F to 140°F. The 710 is more compact than any competitor valve in the marketplace. Bring effortless performance to any residential and commercial irrigation systems.
- Protects against backsiphonage where a potential high health hazard exists.
- Features fewer parts with a lightweight, compact body.
- Ideal for space limited applications.
- Universal low-cost repair kits work in both the 3/4" and 1" assemblies.
- IAPMO & ASSE Listed 1020
User questions & answers
| Question: | Is it lead free |
| Answer: | I had a handy man use this to patch the water hose from my fridge and have had to replace it three times so far in a year. I wouldn't suggest using these as a long term solution. I can only assume that the pressure is just too much for this coupling to withstand it being the permanent solution. |
Zurn RK1-720AB Wilkins Pressure Vacuum Breaker (PVB) Bonnet Repair Kit for 1/2" to 1" Model 720A and for 0.5" to 1"
Zurn
Product description
Zurn Engineered Water Solutions is a recognized leader in commercial, municipal, and industrial markets, delivering sustainable building solutions for new construction and retrofit applications. At Zurn we are committed to providing smart solutions that save both time and money. This Bonnet Repair Kit includes bonnet, canopy, and canopy screws. The RK1-720AB Bonnet Repair Kit is compatible with the 1/2", 3/4", and 1" Zurn model 720A.
User questions & answers
| Question: | can you please show me a picture of how it would look like after installation? I want to know if I installed correctly. thanks |
| Answer: | NO this model is not |
| Question: | How do I know if I need a 12/,3/4 or 1 inch |
| Answer: | I used this particular product on 1/4" OD. I'm sure it can be found for the larger (1/2") size. |
| Question: | What size are the canopy screws? that is all i need but i cannot seem to find one that fits it properly without buying the entire kit. thanks |
| Answer: | These quick connects fittings are junk. Don't buy. Can't return |
| Question: | What is purpose of plastic canopy |
| Answer: | Not sure I use them on trunk air systems 125psi They are good quality |
Product features
Zurn Wilkins 720A Pressure Vacuum Assembly
The Zurn Wilkins 720A Pressure Vacuum Breaker Assembly is a time-tested design that delivers years of unparalleled service in high hazard backsiphonage conditions, making it the valve of choice for professional landscape contractors.
Water Saving
Zurn emphasizes water conservation to take the edge off global strain, ease utility costs and expedite regulation compliance.
All Bronze Body
For corrosion resistance and greater strength and protection against light freezes.
Top of the line backsiphonage protection
Designed for installation on potable water lines to protect against backsiphonage of contaminated water into the potable water supply.
Tapped Ball Valves
Allow for installation in any position.(Universal Replacement).
Zurn Wilkins 12-720A Pressure Vacuum Breaker Assembly, 1/2"
Zurn
Product description
The Zurn Wilkins Series 720A Pressure Vacuum Breaker Assembly is used in high hazard applications for protection. Applications are primarily non-potable residential and commercial irrigation systems. Designed for installation on irrigation water lines to protect against backsiphonage of contaminated water into the potable water supply. Assembly shall provide protection where a potential health hazard exists.
- Maximum working water pressure 150 PSI
- Maximum working water temperature 110 DegreeF
- Hydrostatic test pressure 300 PSI
- End connections threaded ANSI B1.20.1
- All bronze body and bonnet construction
User questions & answers
| Question: | Does this come ready to use out the box? I know I have to pipe it in place, but do any steps have to be taken before operation |
| Answer: | Here's an exploded view of the assembly:http://content.zurn.com/web_documents/pdfs/repairparts/720A%2012-2.pdfThank you,SprinklerPartsWholesale |
| Question: | What size is 34-720a zurn |
| Answer: | Hello,This kit will fit the 1/2", 3/4" and 1" 720A backflow preventers.Thank you,Jamie |
| Question: | esta valvula tiene plomo |
| Answer: | they came with mine if able use the old ones |
| Question: | Hi, will this 1 1/2" backflow preventer be ok for a 1 1/4" pipe |
| Answer: | The plastic canopy keeps elements off of the bonnet and also directs water downward in a backflow condition.Thank you |
Product features
Zurn Wilkins 720A Pressure Vacuum Assembly
The Zurn Wilkins 720A Pressure Vacuum Breaker Assembly is a time-tested design that delivers years of unparalleled service in high hazard backsiphonage conditions, making it the valve of choice for professional landscape contractors.
Water Saving
Zurn emphasizes water conservation to take the edge off global strain, ease utility costs and expedite regulation compliance.
All Bronze Body
For corrosion resistance and greater strength and protection against light freezes.
Top of the line backsiphonage protection
Designed for installation on potable water lines to protect against backsiphonage of contaminated water into the potable water supply.
Tapped Ball Valves
Allow for installation in any position.(Universal Replacement).
Arrowhead PK1390 Replacement Self Draining Vacuum Breaker
Arrowhead
Product description
With fine machine threads for attachment to wall hydrant. Nickel plated-for use on 485BFP & 486BFP frost proof wall hydrants The VPC PK1390 is a replacement self-draining vacuum breaker for frost free hydrants with FINE THREADS (will not connect to hose threaded faucet). A must on all outdoor systems. It can easily be adapted with new installs or existing systems. • Red brass construction, nickel plated for protection from extreme weather • Drains water from faucet upon shut off • For replacing leaking vacuum breakers on fine threaded hose-bibs and sillcocks • Red brass with 80-83% copper content • For outdoor use; not for potable water • ASSE 1019 approved; IAMPO certified
From the Manufacturer
With fine machine threads for attachment to wall hydrant. Nickel plated-for use on 485BFP & 486BFP frost proof wall hydrants
- Hose bibs and most products are excluded from the requirements of being "lead free"
- Arrowhead has residential, retail and commercial products
- Valves are not intended to be used for potable (drinking) water applications
- Replacement breaker for frost-free hydrants with fine threads, Durable nickel-plated construction protects against elements
- Designed for outdoor use, breaker is not for potable water
User questions & answers
| Question: | The female end of this product is 3/4" fine thread and the male is 3/4" coarse, correct |
| Answer: | No, it comes ready to install. It’s a piece of cake to install. |
| Question: | Whats the size up from this one? Its just a hair too small for my faucet |
| Answer: | Size of what? Height, depth, pipe size, connectors? Need more specificity |
| Question: | The female end of this product is 3/4" fine thread and the male is 3/4" coarse, correct |
| Answer: | Realmente ignoro si tiene plomo a mi ver creo que no pero realmente no se necesitas ver de que material se fabrican |
| Question: | where can I buy one without the set screw |
| Answer: | Yes,you’ll have to use bushings or reducers from 1 1/2 to 1 1/4 .Probably should just get an 1 1/4 size device. |
Zurn RK1-720APK Wilkins Pressure Vacuum Breaker Assembly (PVB) Pro Repair Kit for 1/2" to 1" Model 720A and for 0.5" to 1"
Zurn
Product description
Zurn Engineered Water Solutions is a recognized leader in commercial, municipal, and industrial markets, delivering sustainable building solutions for new construction and retrofit applications. At Zurn we are committed to providing smart solutions that save both time and money. This Pressure Vacuum Breaker Assembly (PVB) Pro Repair Kit includes poppet assembly, spider assembly, spring, O-rings, washer, and lubricant. The RK1-720APK Pro Repair Kit is compatible with the 1/2", 3/4", and 1" Zurn model 720A.
Product features
Zurn Wilkins 720A Pressure Vacuum Assembly
The Zurn Wilkins 720A Pressure Vacuum Breaker Assembly is a time-tested design that delivers years of unparalleled service in high hazard backsiphonage conditions, making it the valve of choice for professional landscape contractors.
Water Saving
Zurn emphasizes water conservation to take the edge off global strain, ease utility costs and expedite regulation compliance.
All Bronze Body
For corrosion resistance and greater strength and protection against light freezes.
Top of the line backsiphonage protection
Designed for installation on potable water lines to protect against backsiphonage of contaminated water into the potable water supply.
Tapped Ball Valves
Allow for installation in any position.(Universal Replacement).
Wilkins 721-3 Repair Canopy for 1/2"-1" 720A Pressure Vacuum Breaker
Wilkins
Product description
Wilkins: 720A PVB, CANOPY, 1/2"-1"
User questions & answers
| Question: | Does it come with screws |
| Answer: | I don't know if you can get them without the set screw but you don't need to use the set screw you can remove it or leave it on and don't tighten it |
Zurn 721-3 Wilkins Repair Canopy for 1/2-Inch -1-Inch 720A Pressure Vacuum Breaker
Zurn
Product description
Zorn Engineered Water Solutions is a recognized leader in commercial, municipal and industrial markets. Zorn manufactures the largest breadth of engineered water solutions in the industry, including a wide spectrum of sustainable plumbing products.
From the Manufacturer
Zurn Engineered Water Solutions is a recognized leader in commercial, municipal, and industrial markets. Zurn manufactures the largest breadth of engineered water solutions in the industry, including a wide spectrum of sustainable plumbing products.
- Plastic canopy to fit 1/2", 3/4" and 1" Wilkins 720a
- Wilkins 720 replacement top
- Screws not included
Product features
Zurn Wilkins 720A Pressure Vacuum Assembly
The Zurn Wilkins 720A Pressure Vacuum Breaker Assembly is a time-tested design that delivers years of unparalleled service in high hazard backsiphonage conditions, making it the valve of choice for professional landscape contractors.
Water Saving
Zurn emphasizes water conservation to take the edge off global strain, ease utility costs and expedite regulation compliance.
All Bronze Body
For corrosion resistance and greater strength and protection against light freezes.
Top of the line backsiphonage protection
Designed for installation on potable water lines to protect against backsiphonage of contaminated water into the potable water supply.
Tapped Ball Valves
Allow for installation in any position.(Universal Replacement).
1-35XL - Atmospheric Vacuum Breaker
Zurn
Product description
The Zurn Wilkins 35XL Atmospheric Vacuum Breaker provides high hazard protection in non-continuous pressure applications subject to backsiphonage conditions.
- 1" atmospheric vacuum breaker
- Economical way to prevent backsiphonage
- Brand name: Zurn
- Country of Origin: Taiwan, Province Of China
Product features
About Zurn
Zurn Industries, LLC is a provider of advanced water solutions, including drains, rough plumbing, finish plumbing, PEX pipe and fittings, and water safety and control products. Our products deliver time-saving installation for contractors and the lowest total cost of ownership for building owners. Our technology tools simplify the specification process for engineers, and Zurn Connected Products provide building maintenance personnel with real-time insights to manage costs and minimize risks.
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