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Durable Industrial Backflow Prevention System for Quality Water Supply
US$30.00-60.00
5 Pieces
Sample price:US$200.00/piece.Request sample
Product profile
Customization
AvailableMedia
WaterTemperature
Ordinary TemperatureModel NO.
LHS743X-16Q-DN100Material
Cast IronConnection Form
FlangeStructure
Double Check with Relief ValvePressure
Ordinary PressureFunction
Backflow Prevention and Water Supply IsolationSealing Form
Soft SealingFlow Direction
UnidirectionStandard
GBApplication
Water Industrial UsageProduct Name
Low-Resistance Backflow PreventerModel
Lhs743XValve Type
Backflow PreventerNominal Diametre
DN50-300Nominal Pressure
Pn10-16Working Temperature
0℃ ~ 80℃Valve Body
Ductile IronInternal Component
Stainless SteelAdvantages-01
High Safety Backflow ProtectionAdvantages-02
Prevents Contamination & Water HammerCertification
GS, CE, ISO9001Transport Package
Seaworthy Wooden CaseSpecification
DN50-DN300Trademark
ZentifOrigin
ChinaHS Code
8421199090Production Capacity
50000Key features
Dual Check Protection: Dual check valves provide layered protection against backflow and back-siphonage.
Auto-Draining Relief: Relief valve handles chamber pressure and creates an air gap to block contamination.
Durable Ductile Iron: Strong ductile iron body with stainless steel parts for corrosion resistance.
Low Head Loss: Optimized flow design reduces head loss and enhances overall system efficiency.
ISO Certified Quality: ISO-Certified manufacturing ensures high safety and reliable performance standards.
Hydraulic Operation: Fully hydraulic operation requires no external power for automatic valve control.
Wide Application: Suitable for municipal water, fire protection, HVAC, and industrial pipelines.
Customization Available: OEM and ODM services available with customization from customer designs.
Company profile
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Designs CertifiedExport Year: N/A CertifiedNearest Port: Shanghai PortAverage Response Time: ≤1.91h
About Our Factory & Business Background
AddressNo. 111 Huangjia Garden Road, Jiangqiao Town, Jiading District, Shanghai, China
Plant Area12819.22 square meters
Number of Employees81
Registered Capital55,484,089 RMB
Terms of PaymentLC, T/T, D/P, PayPal, Western Union, Small-amount payment
International Commercial Terms(Incoterms)FOB, CIF, CFR, EXW
Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays
Minimum Order Quantity500 PICS
Supply Chain Partners12
Our Production Capability & Technical Expertise
Main Productsangle valve
Production Lines5
Production MachinesCNC Lathe, Lathe, Shot Blasting Facility, Vertical Lathe
QA/QC inspectors3 people
Inspection Type for Finished Products100% inspection(Visual inspection & Function inspection)
Inspection Method for Finished ProductsHave instructions and uniformly followed
R&D Engineers2 people
Traceability of Raw MaterialsYes
Our Industry Experience & Global Business Record
Year of Establishment2001-03-20
Main MarketsDomestic
Repeat Buyers Choice50%~80%
Number of Foreign Trading Staff4
Overseas Agent/BranchNo
New Products Launched in Last yearNo
Our Certifications, Standards & Industry Recognition
Cooperated with Fortune 500No
Product Q&A
Q:How to choose the right backflow preventer?
A:
For potable systems, RPZ suits high-risk. Check size, pressure, hazard. Double check for low risk; RPZ offers superior protection.
Q:Why are backflow preventers critical in water systems?
A:
They protect drinking water from contamination by pressure or siphonage. Required by municipal codes and buildings to ensure health and prevent cross-connection risks.
Q:Are backflow preventers used in fire protection?
A:
Yes. Specialized backflow preventers in fire systems stop non-potable water from re-entering municipal supplies, ensuring safety and compliance with fire and drinking water standards.
Q:How do backflow preventers enhance safety in HVAC and industrial water systems?
A:
Backflow preventers shield chilled, heating, and process water systems from contamination. They maintain water quality, prevent equipment corrosion, and ensure health and safety regulation compliance in commercial and industrial settings.
Q:What is the warranty period for this product?
A:
The product comes with a standard warranty covering manufacturing defects. Please contact our sales team for specific warranty terms and conditions.
Send Inquiry
*To:
Shanghai Zentif Valve Group Co., Ltd.
Shanghai Zentif Valve Group Co., Ltd.*Content:
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