Zurn Backflow Prevention - Overview

Presentation on theme: "Zurn Backflow Prevention - Overview"— Presentation transcript:

1 Zurn Backflow Prevention - Overview
July 16, 2019

2 agenda what you’ll learn
01 value proposition 02 how it works 03 features & benefits 04 design & specify 05 summary 06 resources

3 For those who want to protect against backsiphonage and backpressure of contaminated water into the water supply, Zurn Industries provides backflow preventers that offer a durable, low lifecycle cost solution unlike any competitor allowing you to provide high or low hazard protection for water applications

4 voice of customer industries
“I need products that are durable and have a low total cost of ownership and require minimum downtime for maintenance.” building owner architect & engineer “I need products that are durable and cost-effective.” “I need products that are easy and cost-effective to install and maintain, that are assembled and packaged in a manner that streamlines installation.” contractor Healthcare | Retail | Food Service | Hospitality | Restaurants | Institutional/Education | Government

5 code compliance regulations All plumbing codes require backflow prevention products be installed to protect the drinking water system USA Federal Safe Drinking Water Act of 1974 established water quality standards Mandated State enforcement of standards and State supervision of water utilities Established Water Purveyor’s responsibility to ensure that water is un-compromised through the delivery system and to develop Cross- Connection Control programs Canadian Federal and Provincial Requirements From Source To Tap - The Multi-Barrier Approach To Safe Drinking Water 2002 Introduced language on backflow From Source to Tap: Guidance on the Multi-Barrier Approach to Safe Drinking Water 2002, 2004 Detailed language on backflow programs Guidance For Providing Safe Drinking Water in Areas of Federal Jurisdiction – Version

6 definitions backflow overview
4:05 Video What is Backflow and What is a Backflow Preventer? definitions backflow overview Backflow is the undesirable reversal of flow of water or mixture of water and/or other substances into the distribution pipes of the potable supply of water from one or more source(s) Backsiphonage Negative or sub-atmospheric pressure in the supply piping, allowing downstream substances to be siphoned into the potable water supply construction and retrofit applications Caused by broken water mains and under-sized pipes - pipeline breaks - vacuums created by high withdrawal rates, such as fighting a fire Backpressure Pressure higher than the supply is created in the downstream piping, allowing downstream substances to be pushed into the potable water supply Caused by pumps - thermal expansion – piping elevation Degree of Hazard Low Hazard – Pollutant that if allowed to enter drinking water would not cause sickness or death, but would impair the quality of the water by sight, smell or taste High Hazard – Contaminant that if allowed to enter drinking water would cause sickness or death Cross-Connection For backflow to occur, a cross connection of some type must also be present. Cross-connection refers to any unprotected actual or potential connection between the potable water system and any other source through which a substance, other than potable water, may be introduced. Caused by garden hose connected to a hose bibb - jumper connections - removable sections of piping - swivel or change-over devices - by-pass arrangements - other temporary or permanent devices where backflow may occur

7 definitions backflow prevention
We cannot eliminate the occurrence of backflow conditions AND We cannot prevent cross-connections from being created THUS, we must provide a means of protecting drinking water systems from the hazards of backflow occurrences through cross-connections Air gap, the most basic means of backflow prevention An air gap must be 2X the diameter of the outlet or at least 1” whichever is greater Although effective, an air gap is not always the most practical means of backflow prevention since: Water pressure is lost when using an air gap Where water pressure is needed, a pump is usually required to re-pressurize the system Once water passes through an air gap, the water often can no longer be considered potable Mechanical backflow prevention devices and assemblies A more practical means of protection against cross-connection hazards

8 features & benefits overview
backflow prevention assemblies Protect life and property For plumbing, irrigation, waterworks, fire protection, and retrofit applications All Plumbing Codes require backflow prevention products be installed to protect the drinking water system key capabilities protect from backpressure avoid high health hazards protect from backsiphonage avoid low health hazards isolatable testable and repairable

9 features & benefits double check assembly
The Zurn Wilkins 350 Series and 950 Series Double Check Backflow Preventers provide low hazard protection from backsiphonage and backpressure for all water application Features two spring loaded check valves designed to close drip tight Pressure Loss is approximately 10 psi static 950XLT2, 950XL, 350XL, 350, 350A, 350AST, 450, 450ST 350AST Sizes 2 ½” – 10” 350XL Sizes ¾” – 2” 5:19 Video: Wilkins 300AR Series Backflow

10 features & benefits double check detector assembly
The Zurn Wilkins Double Check Detector Backflow Preventers provide low hazard protection from backsiphonage and backpressure, including a metered by-pass to detect leaks and unauthorized water use in unmetered fire sprinkler systems. Bypass valve provides an equal level of protection. (double check) 950XLTDA, 350DA, 350ADA, 350ASTDA, 450DA, 450STDA 450STDA Sizes 4” – 10” 350ASTDA Sizes 2 ½” – 10”

11 how it works backflow detector assemblies
Bypass Valve “Tattletale” Meter Inlet No flow (static) Low flow (<5gpm) High flow (>5gpm) Main Valve checks closed open Bypass checks Meter not moving registering flow registering bypass flow only

12 features & benefits reduced pressure principle assembly
The Zurn Wilkins Reduced Pressure Principle Backflow Preventers provide high hazard protection against backsiphonage and backpressure for all water applications Features two spring loaded check valves designed to close drip tight and a relief valve Pressure Loss is approximately 15 psi static 975XL2, 975XL, 375XL, 375, 375A, 375AST, 475, 475ST 375A Sizes 2 1/2” – 10” 975XL2 Sizes ½” – 2” page 012

13 how it works RPZ functions
1st check valve closed 1st check valve open 2nd check valve closed 2nd check valve open static (no flow) condition Both check valves and the relief valve are in the closed position. The difference in color reflects the pressure drop across each check valve normal flow Both check valves have lifted off of their seats and the relief valve remains in the closed position page 013

14 features & benefits reduced pressure principal detector assembly
The Zurn Wilkins Reduced Pressure Principal Detector Assembly Backflow Preventers provide high hazard protection from backsiphonage and backpressure, including a metered by-pass to detect leaks and unauthorized water use in unmetered fire sprinkler systems. Bypass valve provides an equal level of protection. (RPZ) 375DA, 375ADA, 375ASTDA, 475DA, 475STDA 475DA Sizes 4” – 10” INSERT PHOTO 375ADASTBG Sizes 2 ½” – 10”” page 014

15 Test Your Knowledge What visually differentiates a double check assembly from a reduced pressure principal assembly? 1st check valve 2nd check valve Relief valve All of the above

16 features & benefits 300 Series with EZSwap pressure vessel
key features Ease of repair/maintenance saving up to 35 minutes in repair and rebuild time Labor savings from ease of flushing saves up to 15 minutes per installation EZSwap pressure vessel can be changed out within 2 minutes Contractors should keep a spare EZSwap on hand for easy maintenance and repairs simple and safe line flushing Line flushing to remove fouling debris is fast, simple and safe with the EZSwap pressure vessel “The 300 Series with EZSwap Pressure Vessel saves me time and money. My customers love it because the water system is down for less than 5 minutes and we don’t have to schedule a second appointment for repairs.” – Ben Bennett, Backflow Prevention Specialists, Inc.

17 features & benefits 375XLB theft deterrent coating
key features Provides ultimate backflow protection with theft resistant design Black fusion epoxy coating camouflages bronze and reduces scrap value by as much as 90%, virtually eliminating theft Less bronze = less theft additional theft deterrents Enclose the valve in a securely fastened enclosure Use specially designed backflow locks and anchor it in concrete Paint the valve to camouflage it and reduce its scrap value 375XLB 3:13 Video: 375XL Upgrade

18 features & benefits BOF fitting tools
375XL or 350XL 375 or 350 BOF (Blow Out Flush) Plumbing Contractor Irrigation Contractor 375 Series Flush Fitting Tools 350 Series Flush Fitting Tools 1/2"-3/4" RK34-375BOF RK34-350BOF 1" RK1-375BOF RK1-350BOF 1-1/4”-2” RK BOF

19 features & benefits accessories
“The 300 Series with Flush Fitting Tool is amazing. I can’t believe how quick and easy it is to install and use. No more fouled checks in new installs.” – Matt Evangelista, Matt’s Plumbing features & benefits accessories RK-375 RK-375FLUSH Strainer options to prevent against check valve fouling. For use on debris laden water. Complete repair kit compatible with 1” 375, 375XL, and 375ST Includes check modules, all relief valve components, o-rings, and lubricant EZSwap Pressure Vessel is quickly removed and replaced with Flush Fitting Tool (FLUSH) to quickly flush system Line flushing with Flush Fitting Tool is simple, safe, and easily directed to a safe drain

20 features & benefits retrofit length valve
Insert competitor photo key features Stainless steel body options Corrosion resistant internals Low-lead law compliant Drop in replacement for any existing valve models 350ASTDAR ASTDAR 350ASTR (retrofit) 375ASTR 350AR 375AR

21 features & benefits stainless steel
corrosion resistant Ideal for liquids corrosive to copper alloys such as post-mix beverage machines and areas where aggressive drinking water exists key features Stainless steel body Corrosion resistant internals Low-lead law compliant stainless models 350AST 375AST 450ST 350ASTDA 375ASTDA 475ST 350ASTDAR ASTDAR 450STDA 350ASTR (retrofit) STDA 475STV 975XLST STDAV

22 features & benefits connected backflow
catastrophic relief valve discharge Flooding is the second highest cause of property damage Connected Backflow identifies water discharge, monitors the system, and notifies building management key features Combines 375AST, monitor switch, and system sensors. Plug and play, easy installation Online web portal System Monitoring 1:39 Video: Zurn Connected Backflow Preventers

23 Connected Backflow Preventer
connected products Connected Backflow Preventer REAL-TIME DETECTION Sensor detects minute openings of relief valve and instantly calculates discharge flow rate and volume Thushan Hemachandra PRESSURE MONITOR Zone pressure sensor monitors system and provides alerts you when the pressure deviates from desired range Launched Oct. 1, 2018 Connected Backflow Preventer Model 375ASTW1 shown

24 Connected Flood Control System (FCIS)
connected products Connected Flood Control System (FCIS) REAL-TIME DETECTION Sensor detects minute openings of relief valve and instantly calculates discharge flow rate and volume Thushan Hemachandra WATER SHUTOFF System automatically shuts off water if relief discharge is beyond set tolerances to prevent catastrophic flooding PRESSURE MONITOR Zone pressure sensor monitors system and provides alerts you when the pressure deviates from desired range FCIS standard with connectability – June 10, 2019 2-1/2” – 10” Connected Flood Control System (FCIS) Model FCISAST shown 1:50 Video: Zurn Connected Flood Control System

25 how it works Connected Flood Control System
1 sensors capture and send data to cloud relief valve position sensor detects for opening of the relief valve and size of that opening, and then transmit these readings multiple times per second wirelessly to the Zurn cloud via Zurn gateway ZURN GATEWAY ZURN GATEWAY 2 data analyzed for alerts and insights Thushan Hemachandra relief valve opening size data is then computed in real-time to determine: current flow rate (gallons per minute) total volume of water discharged during an event (gallons) total volume discharged by product in a 24-hr period (gallons) ZURN CLOUD ZURN CLOUD 3 alerts sent via web/ /text if any of these computed results surpasses a threshold for warnings and then severe alerts, they are displayed immediately on plumbSMART™ and notifications are sent to the building owner/facility manager via /text based on severity with link back to plumbSMART™ 4 24/7 access to product info and trends plumbSMART™ allows customers to view current product status, adjust their alert settings and view historic data trends from any location with an internet connection IMPORTANT NOTE: Connected technology/electronics DOES NOT CHANGE OR AFFECT the regular functions of the backflow preventer in any way. Only senses for changes.

26 preventative maintenance insights historic data/trends
real-time alerts preventative maintenance insights historic data/trends dashboard-style view of enterprise organized by building and campus customizable alert parameters opt-in/out of and mobile alerts add/assign sub-users Step-by-step PlumbSMART™ instructions in less than 15 minutes! Zurn Connected Products – Headquarters – Backflow 3 Complimentary access to the PlumbSMART™ and alerts for 1 year from the time of the first purchase of a Zurn Connected Product. Thereafter, subscription renewal rates are in a tiered format, based on the total number of Zurn Connected Products installed across your enterprise. PLUMBSMART™ ACCESS IS BY INVITATION ONLY; USERS MUST BE AUTHORIZED AND VALIDATED AUTHENTICATION IS SECURED BY MICROSOFT AZURE ENCYPTION PROTOCOLS USER PRIVILEGES CAN BE LIMITED TO SPECIFIC ROLES, LOCATIONS & PRODUCTS

27 features & benefits 400ST n-Pattern backflow preventer
Same internal components as the Zurn Wilkins 300 and 400 series ductile iron n-Pattern – field tested and proven for 18+ years Drop-in-replacement for the Febco n-Pattern Smaller footprint – new ductile iron setters to fit tighter center line dimensions Fields description Stainless steel body (corrosion resistant body and cover) Sizes: 4” – 10” Types: DC (double check), RP (reduced pressure), DCDA (double check detector assembly), RPDA (reduced pressure detector assembly) 3:01 Video: Zurn Backflow Prevention 400ST n-Pattern

28 features & benefits 400 Series n-Pattern
475 Sizes 2 1/2” - 10” Shaped in the “n” pattern” The Zurn Wilkins 450 Double Check and 475 Reduced Pressure Principle Assemblies (shaped in the “n” pattern or “z” pattern) are ideal for new or retrofit installations in tight locations. Legacy valve with 18+ years of proven engineered principals Drop in replacement for 475V Sizes 2 1/2” - 10” Shaped in the “z” pattern for vertical orientation”

29 features & benefits drop-in replacements
replacements for Zurn Wilkins assemblies Assemblies are designed for drop-in to reduce installation and system down time Model 450STR Replaces 450 Model 450STDAR Replaces 450DA Fields key features Same center line dimensions as Zurn Wilkins ductile iron n-Pattern Series Same benefits and functionality Model 475STR Replaces 475 Model 475STR Replaces 475RPDA R replacement part numbers 450STR 450STDAR 475STR 475STRV 475STDAR 475STDARV Model 475STRV Replaces 475V Model 475STDARV Replaces 475RPDAV

30 features & benefits replacement field conversion
compliance and approvals It is ideal to stock 475ST for new construction and Febco replacements and to stock the 475STR for Zurn Wilkins ductile replacements Field conversion invalidate our approvals and should be avoided Field conversions must be approved by the authority having jurisdiction over backflow installation Daniel Alvarez conversion kits Conversions may require flipping the gate valve, an elbow to rotate the relief valve, and a new sensing line ST to STR STR to ST RK4-475STR-RVELBOW RK4-475ST-RVELBOW RK6-475STR-RVELBOW RK6-475ST-RVELBOW RK8-475STR-RVELBOW RK8-475ST-RVELBOW RK10-475STR-RVELBOW RK10-475ST-RVELBOW Model 475STR Replaces Zurn Wilkins 400 ductile iron series Model 475ST Replaces Febco

31 features & benefits options & accessories
NEW backflow setter Allows backflow preventer to fit tighter center line dimensions Simplifies installations Eliminates the need to pour concrete thrust blocks Provides for a lower installation cost Ductile Iron fusion epoxy coated options MJ x Flange (MJFSST) MJ x MJ (MJSST) Flange x Flange (FLSST) Model FLSST

32 features & benefits shut-off valves
PIV is typically sold along with the backflow preventer, but there are stand alone applications Researching adding wall and yard post indicators for stand alone Post indicator (PI) gate valve Provides a visual indication of the valve’s open/closed position when coupled with an indicator post Non-rising stem gate valve with attachment plate for indicator post 48 outside stem & yolk (OS&Y) gate valve Provides a visual indication of valve’s open/closed position Resilient wedge gate valve Flanged, grooved, or flanged x grooved connections Stand alone or on Zurn Wilkins backflow preventers 49 Butterfly Valve Integral supervisory switch with visual indicator Butterfly valve with grooved x grooved connections, grooved x flange connections and flange x groove connections

33 features & benefits ancillary products
Ball Valve Monitor Switch (BVMS) Mounted on a backflow preventer’s ball valve shutoffs in a fire sprinkler system, it will signal if ball valve handle is moved from an open position Fixed Air Gaps Collects water discharge from reduced pressure backflow assemblies, dura-coated cast iron body Color difference of the two setters – two different sizes for two unique models Gate Valve Supervisory Switch (OSY-40) Used to monitor the position of and OS&Y type gate valve. Setters Used with 400 series DI and Stainless backflows, valve setters ease installation time and eliminate the need for concrete thrust blocks.

34 features & benefits competition
n-Pattern Backflow Prevention Zurn 400 Febco 800 Apollo 4An Stainless Steel Body + X Sizes: 4” – 10”, Types DC, RP, DCDA Sizes: 4” – 10” , Type: RPDA Patented Compound Checks® Replaces Zurn 400 ductile iron series Replaces Febco 800 series Field tested and proven for 18+ years Patented Relief Valve Monitor Switch (475ST/V, 475STDA/V)

35 features & benefits vacuum breaker
The Zurn Wilkins Pressure Vacuum Breaker Assemblies provide high hazard protection for back siphonage conditions only, primarily in irrigation systems. The Zurn Wilkins 420XL Pressure Vacuum Breaker Assembly with integral freeze relief poppet. Primarily for residential irrigation, but can be used in potable water applications 420XL The Zurn Wilkins 460XL Spill Resistant Pressure Vacuum Breaker provides high hazard protection for backsiphonage conditions. Start-up spillage is either eliminated vs. standard pressure vacuum breakers 460XL The Zurn Wilkins 720A Pressure Vacuum Breaker is the workhorse of the Wilkins PVB lineup. The bronze body provides durability under light freeze conditions and is the valve of choice for professional landscape contractors 720A

36 features & benefits lead-free vs. non potable
Composite Body Bronze Body Double check RP PVB lead-free 350XL 375XL 950XLT2 975XL2 420XL non-potable 350 375 950XLT 975XL 720A 950XL Sizes 3/4” – 2” High Hazard Protection

37 features & benefits backflow devices
In addition to the main backflow prevention assemblies, Zurn offers other backflow preventers including dual checks, dual checks with atmospheric vent, atmospheric vacuum breakers, and single checks

38 features & benefits competition
Backflow Prevention Zurn Watts Febco Conbraco Lowest Lifecycle Cost + X Z-Press™ and Z-Bite™ Solderless Connections EZSwap Pressure Vessel Black Fusion Epoxy Coating Camouflaged Bronze Zurn Online Specification Tools Flood Control Integrated System (FCIS)

39 Test Your Knowledge What are Zurn’s 375 backflow prevention valves’ top 3 benefits? Lowest lifecycle cost EZSwap pressure vessel saves 35 minutes in repair and rebuild time Black fusion epoxy coating camouflages bronze and reduces scrap value, virtually eliminating theft Zurn online specification tools INSERT PHOTO

40 how to specify step-by-step
application type 1 Fire protection, plumbing, irrigation, or waterworks hazard level High hazard, low hazard 2 backpressure or backsiphonage 3 installation Horizontal installation or vertical installation, inside, or outside 4

41 BACKFLOW PREVENTION *All Retrofit 310 350 375 420 450 460 475 720 740
Vacuum Breaker 450 460 Spill Resistant Pressure Vacuum Breaker 475 720 Pressure Vacuum Breaker 740 Carbonated Beverage Backflow Preventer 950 975 Fire Protection-virtually 100% static Fire Protection Plumbing Irrigation-2% flow; 98% static Irrigation Waterworks Health hazard level Low Hazard High Hazard Backpressure, backsiphonage Backpressure Backsiphonage Type Single Check Double Check Assembly (DC) Double Check Detector (DCDA) Reduced Pressure (RP) Reduced Pressure Detector Assembly (RPDA) Pressure Vacuum Breaker (PVB) Double Check Detector Assembly (DCDA) Reduced Pressure (RP) Body Material Epoxy Coated Ductile Iron Epoxy Coated Ductile Iron / Cast Bronze Epoxy Coated Ductile Iron / Stainless Steel Size – 1/8” – 2”, 2-1/2”-12” 4”, 6” 8”, 10” ¾”, 1”, 1-1/4”, 1-1/2”, 2”, 3”, 4”, 6”, 8”, 10”, 12’ ½”, ¾”, 1”, 1-1/4”, 1-1/2”, 2”, 3”, 4”, 6”, 8”, 10” 3/8”, ½”, ¾”, 1” 2-1/2”, 3”, 4”, 6”, 8”, 10” ½”, ¾”, 1”, 1-1/4”, 1-1/2”, 2” 3/8” ¾”, 1”, 1-1/4”, 1-1/2”, 2” ¼”, 3/8”, ½”, ¾”, 1”, 1-1/4”, 1-1/2”, 2”, 3” Installation criteria – horizontal, vertical (space efficient) Horizontal Vertical

42 design & specify options
Shut-Off Options NRS OSY PIV ZW Butterfly Flanged * OSY PI BF Grooved G OSYG PIG BG Grooved x Flanged GF OSYGF PIGF BGF Flanged x Grooved FG OSYFG PIFG BFG The backflow product offering is a complete Zurn branded package of backflow and shut-off valves

43 design & specify flow curve

44 Test Your Knowledge Place the following specify steps in the correct order: A. App type B. Hazard level C. Installation D. Required flow (sizes)

45 design & specify tools Zurn.com tools Create unlimited configurations
Solidify your basis of design Generate your submittal package Edit, share and copy projects Zurn.com tools inSpec Create configurations, solidify your basis of design, generate your submittal package, edit/share/copy projects Manufacturer Cross Reference Select a manufacturer, then product, type, or competitor product number to find the corresponding Zurn Product ARCAT Review CAD, BIM, and spec files BIM/Revit Files Browse BIM objects Cross Reference Guides Review cross reference guides for individual products Wilkins Backflow Regulator Valve Conversion Charts Review backflow and regulator charts Product Warranties Review One Zurn terms and conditions

46 features & benefits lifecycle analysis tool

47 summary what you learned
architect & engineer Durable, Corrosion-Resistant Materials Lowest Lifecycle Cost Zurn Online Tools for Specification Black Fusion Epoxy Coating Camouflages Bronze 48-Hour Shipping Simplified and Speedy Installation Safe and Easy Flushing with Zurn Flush Tool Z-Press™ and Z-Bite™ Solderless Connections EZSwap Pressure Vessel Affordable Repair Kits 48-Hour Shipping contractor building owner Lowest Lifecycle Cost Durable, Corrosion-Resistant Materials Minimum Maintenance Downtime Virtually Theft-Resistant 48-Hour Shipping

48 summary Zurn overview For more than a century, Zurn Engineered Water Solutions® has established itself as an innovator and leading manufacturer of highly engineered water product solutions. Markets We Serve Zurn Engineered Water Solutions is a recognized leader in commercial, municipal, and industrial markets, delivering sustainable building solutions for new construction and retrofit applications. Industry Leading Product Lines The Zurn product offering includes items such as specification drainage products, manual and sensor operated flush valves, radiant heating systems, snow melt systems, linear drainage, backflow and fire protection systems, and much, much more. Solutions We Provide At Zurn we are committed to providing smart solutions that save time and money. Our goal is serving the customer through innovation, continuous improvement, and assurance behind every installation. One Choice. One Zurn. Choose Zurn for a reliable, recognized manufacturer to supply your entire installation, from behind the wall rough-in, to finished trim product and fixture systems.

49 resources support address phone online 511 Freshwater Way
Milwaukee, WI 53204 toll-free ONE-ZURN zurn.com Product Pages | Tools, Specifications, & Resources | Vertical Market Solutions inSpec | Manufacturer Cross Reference | ARCAT | MasterSpec | SpecBuilder | Specifiers | BIM/Revit Files zurn.com/resources/product-training Zurn Product - Overview How to Install and Support linkedin/company/ZurnIndustries facebook/ZurnIndustries youtube/ZurnIndustriesLLC twitter/ZurnIndustries