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Lhs743X High Quality Backflow Preventer for Reliable 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.
LHS743XMaterial
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 with Relief Valve: Provides multiple protection barriers and automatic backflow prevention.
Ductile Iron Body: Ensures high strength and durability for industrial applications.
Stainless Steel Components: Resists corrosion for long-term reliable performance.
Low Flow Resistance: Streamlined passage minimizes head loss and boosts energy efficiency.
ISO and CE Certified: Meets GS, CE, ISO9001 standards for quality and safety.
Wide Size Range: Available in DN50 to DN300 to fit various pipeline needs.
OEM and ODM Services: Customization available from designs to meet specific requirements.
Hydraulic Operation: Requires no external energy for automatic valve and relief action.
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: ≤1.96h
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 select the right backflow preventer for water supply systems?
A:
For potable systems, use RPZ for high risk. Assess pipeline size, pressure, hazard. Double check valves for lower risk; RPZ for top protection.
Q:Why are backflow preventers essential in municipal and building water systems?
A:
Backflow preventers protect drinking water from contamination by back pressure or siphonage. Required by municipal codes and high-rises, they ensure public health by preventing cross-connection risks.
Q:Can backflow preventers be used in fire protection systems?
A:
Yes, specialized backflow preventers in fire systems stop non-potable water from re-entering the supply, ensuring safety and adhering to both fire and water standards.
Q:How do backflow preventers improve safety in HVAC and industrial water systems?
A:
Backflow preventers protect chilled, heating, and process water systems from reverse flow contamination, maintaining water quality, preventing equipment corrosion, and ensuring compliance with health and safety standards.
Send Inquiry
*To:
Shanghai Zentif Valve Group Co., Ltd.
Shanghai Zentif Valve Group Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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