English
全部
搜索
图片
视频
短视频
地图
资讯
更多
购物
航班
旅游
笔记本
报告不当内容
请选择下列任一选项。
无关
低俗内容
成人
儿童性侵犯
时长
全部
短(小于 5 分钟)
中(5-20 分钟)
长(大于 20 分钟)
日期
全部
过去 24 小时
过去一周
过去一个月
去年
清晰度
全部
低于 360p
360p 或更高
480p 或更高
720p 或更高
1080p 或更高
源
全部
Dailymotion
Vimeo
Metacafe
Hulu
VEVO
Myspace
MTV
CBS
Fox
CNN
MSN
价格
全部
免费
付费
清除筛选条件
安全搜索:
中等
严格
中等(默认)
关闭
筛选器
7:01
What is a Cross Connection Control and Backflow Preventer?
2019年2月27日
safe-t-cover.com
What You Should Know About JEA's Cross Connection Control Program
2017年10月26日
jea.com
0:49
39 reactions | Meet Cross-Connection Control Specialist Jas
…
已浏览 330 次
3 周前
Facebook
California Water Service
Backflow Testing: Everything You Need to Know — WaterSmart
2021年1月23日
watersmartsystems.com
2:50
VEPO CrossConnex | VEPO Solutions LLC | Backflow Softwar
…
1 周前
veposolutions.com
1:23
VEPO CrossConnex Overview
已浏览 403 次
2022年1月31日
YouTube
VEPO Solutions
7:28
Backflow Prevention & Cross Connection Control: Applications
…
已浏览 7.4万 次
2013年10月9日
YouTube
AmericanWaterWorks
Backflow Prevention
已浏览 1559 次
2012年6月1日
YouTube
Pinellas County
2:34
How Do Cross-connections Impact Water Safety Advisories? - Your U
…
已浏览 3 次
4 个月之前
YouTube
Your Utilities Hub
3:29
What Is A Cross-connection? - CountyOffice.org
已浏览 192 次
9 个月之前
YouTube
County Office
Backflow prevention and cross-connection control
2021年3月7日
portland.gov
55:48
Watts® Works℠ Engineer Webinar Series: Cross-Connection Control
…
已浏览 4.9万 次
2019年3月28日
YouTube
Watts Water
1:05
Cross Connections: How Clean, Safe Drinking Water Starts at Home
已浏览 172 次
7 个月之前
YouTube
Placer County Water Agency
1:48
Best in Class Backflow & Cross Connection Solutions for Water Ut
…
已浏览 38 次
2024年7月26日
YouTube
KloudGin
1:51
Cross Connection and Backflow Safety
已浏览 1585 次
2020年5月4日
YouTube
Missouri American Water
7:17
EXCERPT Backflow Prevention and Cross Connection Control Regulat
…
已浏览 548 次
2023年11月17日
YouTube
USC Foundation for Cross-Connection Control …
3:02
What Is A Cross-connection And Why Is It Dangerous For Water? -
…
已浏览 16 次
4 个月之前
YouTube
Your Utilities Hub
6:26
Talking Backflow Prevention and Cross Connection Control
已浏览 9 次
2010年2月23日
Dailymotion
sprinklerdaddy
10:13
Water Distribution | Cross Connection Control
已浏览 1.7万 次
2018年6月11日
YouTube
American Water College
9:48
EXCERPT Cross Connection Control and Recycled Water (2021)
已浏览 384 次
2021年12月1日
YouTube
USC Foundation for Cross-Connection Control …
2:53
Backflow Prevention and Cross Connection Control DVD Preview
已浏览 1848 次
2016年3月8日
YouTube
AmericanWaterWorks
4:25
Cross connection hazards and Backflow prevention devices
已浏览 4273 次
2010年11月4日
YouTube
5321542
3:44
What Is a Cross Connection Device (Backflow Preventer) — And Why
…
已浏览 20 次
7 个月之前
YouTube
Fountainhead Mechanical
28:30
Backflow Prevention - Water Safety & Health - ASSE International
已浏览 2.8万 次
2015年12月22日
YouTube
BuildingWisconsinTV
5:25
EXCERPT Backflow Incidents and Drinking Water Safety (2025)
已浏览 79 次
4 个月之前
YouTube
USC Foundation for Cross-Connection Control …
4:05
What Is Backflow and Backflow Prevention?
已浏览 6977 次
2016年8月12日
YouTube
Zurn Water, LLC
37:49
Best Practices For Backflow Preventer Installation
已浏览 3677 次
2014年7月8日
YouTube
Safe-T-Cover
9:38
How to: Understand Backflow and Cross Connections - Rules and Vi
…
已浏览 32 次
2024年1月13日
YouTube
Water Advocacy
34:33
Cross Connection Control and Backflow Prevention
已浏览 429 次
2022年3月23日
YouTube
PennsylvaniaPUC
1:12
Cross Connection Testing
已浏览 1119 次
2019年10月25日
YouTube
Naiad Irrigation Systems Ltd
观看更多视频
更多类似内容
购买 cross connection backflow
广告
$581.77
Watts Backflow Preventer: SD-3, 3/8 in Pipe Size, FNPT X FNPT, 2.5 Gpm Flow Rate, 3 in Overall Lg Model: 3/8 SD3-FN
Grainger
1
$581.77
Watts Backflow Preventer: SD-3, 3/8 in Pipe Size, FNPT X FNPT, 2.5 Gpm Flow Rate, 3 in Overall Lg Model: 3/8 SD3-FN
Grainger
$60.25
Legend Valve T-459 3/4" Backflow Preventer / Atmospheric Vent, 115-114
eBay
Free shipping
$60.25
Legend Valve T-459 3/4" Backflow Preventer / Atmospheric Vent, 115-114
eBay
$729.21
Watts Reduced Pressure Zone Backflow Preventer: 009, With Strainer, Bronze, 3/4 in Pipe Size, NPT Model: 009M2QTS-3/4"
Grainger
$729.21
Watts Reduced Pressure Zone Backflow Preventer: 009, With Strainer, Bronze, 3/4 in Pipe Size, NPT Model: 009M2QTS-3/4"
Grainger
$543.49
Wilkins Backflow Preventer: 350XL, 3/4 in Pipe Size, FNPT X FNPT, 11 in Overall Lg, Bronze, 350 Model: 34-350XLFT
Grainger
$543.49
Wilkins Backflow Preventer: 350XL, 3/4 in Pipe Size, FNPT X FNPT, 11 in Overall Lg, Bronze, 350 Model: 34-350XLFT
Grainger
$7,327.30
Watts Reduced Pressure Zone Backflow Preventer: 957, With Flood Detection Sensor, 4 in Pipe Size Model: 957-OSY 4"
Grainger
$7,327.30
Watts Reduced Pressure Zone Backflow Preventer: 957, With Flood Detection Sensor, 4 in Pipe Size Model: 957-OSY 4"
Grainger
$141.58
Taco 3450-H2 1/2" Combination Boiler Feed Valve & Backflow (Union Press X NPT) | Supplyhouse.Com
SupplyHouse.com
$141.58
Taco 3450-H2 1/2" Combination Boiler Feed Valve & Backflow (Union Press X NPT) | Supplyhouse.Com
SupplyHouse.com
$129.99
Anti Backflow 3-Way Valve, 3-Way Stopcocks For Luer Lock Or Catheter Connection
eBay
$129.99
Anti Backflow 3-Way Valve, 3-Way Stopcocks For Luer Lock Or Catheter Connection
eBay
$94.98
Legend Valve 3/4 Thread, 150 Psi Wog Rating, Brass Dual Check Backflow Preventer Valve Lead-Free, Certified To A.S.S.E. 1024, Use With
Penn Tool Co
$94.98
Legend Valve 3/4 Thread, 150 Psi Wog Rating, Brass Dual Check Backflow Preventer Valve Lead-Free, Certified To A.S.S.E. 1024, Use With
Penn Tool Co
$4,374.04
Watts Reduced Pressure Zone Backflow Preventer Model: 2 LF909M1-QT-FS
Grainger
$4,374.04
Watts Reduced Pressure Zone Backflow Preventer Model: 2 LF909M1-QT-FS
Grainger
$997.99
3/4 in. 975XL3 Reduced Pressure Principle Backflow Preventer With Model SXL Lead-Free Wye Type Strainer
Home Depot
Free shipping
$997.99
3/4 in. 975XL3 Reduced Pressure Principle Backflow Preventer With Model SXL Lead-Free Wye Type Strainer
Home Depot
$83.99
Midline Valve 372S256-5 Inline Spring Loaded Check Valve, Backflow Prevention, 3/4" Press Connections, Cast Brass (5 Pack), 5 Count
Amazon.com
8
Free shipping
$83.99
Midline Valve 372S256-5 Inline Spring Loaded Check Valve, Backflow Prevention, 3/4" Press Connections, Cast Brass (5 Pack), 5 Count
Amazon.com
$332.09
Watts Backflow Preventer: SD-2, 3/8 in Pipe Size, FNPT X FNPT, 2.5 Gpm Flow Rate, 3 in Overall Lg Model: 3/8 SD2-FN
Grainger
$332.09
Watts Backflow Preventer: SD-2, 3/8 in Pipe Size, FNPT X FNPT, 2.5 Gpm Flow Rate, 3 in Overall Lg Model: 3/8 SD2-FN
Grainger
$404.99
$505.99
Wilkins 350ft DCA Backflow Preventer With SAE Male Test Cocks 1 in. FPT | WK350FT-100
Sprinkler Warehouse
8
折扣 19%
$404.99
$505.99
Wilkins 350ft DCA Backflow Preventer With SAE Male Test Cocks 1 in. FPT | WK350FT-100
Sprinkler Warehouse
$970.99
1/2 in. 975XL3 Reduced Pressure Principle Backflow Preventer With Model SXL Lead-Free Wye Type Strainer
Home Depot
Free shipping
$970.99
1/2 in. 975XL3 Reduced Pressure Principle Backflow Preventer With Model SXL Lead-Free Wye Type Strainer
Home Depot
$9,602.16
Wilkins Double Check Backflow Preventer: 350, 6 in Pipe Size, Flange X Flange, 44.63 in Overall Lg, 350 Model: 6-350
Grainger
$9,602.16
Wilkins Double Check Backflow Preventer: 350, 6 in Pipe Size, Flange X Flange, 44.63 in Overall Lg, 350 Model: 6-350
Grainger
$5,024.12
Wilkins Double Check Backflow Preventer: 350, 3 in Pipe Size, Flange X Flange, 32 in Overall Lg, EPDM Model: 3-350
Grainger
$5,024.12
Wilkins Double Check Backflow Preventer: 350, 3 in Pipe Size, Flange X Flange, 32 in Overall Lg, EPDM Model: 3-350
Grainger
$527.78
3/4 in Bronze Reduced Pressure Zone Backflow Preventer Assembly, Quarter Turn Shutoff Valves, Tee Handles, Flood Sensor
Home Depot
4
Free shipping
$527.78
3/4 in Bronze Reduced Pressure Zone Backflow Preventer Assembly, Quarter Turn Shutoff Valves, Tee Handles, Flood Sensor
Home Depot
$1,323.75
Watts Backflow Preventer: 912HP, 1 in Pipe Size, FNPT X MNPT, 22 Gpm Flow Rate, Brass, PTFE, Female Model: 1 912HP
Grainger
$1,323.75
Watts Backflow Preventer: 912HP, 1 in Pipe Size, FNPT X MNPT, 22 Gpm Flow Rate, Brass, PTFE, Female Model: 1 912HP
Grainger
反馈