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Reliable Low-Resistance Backflow Preventer for Safe 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 with Relief Valve: Provides multiple protection layers and prevents backflow and siphonage effectively.
Ductile Iron Body: Offers superior strength and durability for industrial water systems.
Stainless Steel Internal Parts: Prevents corrosion and ensures long-term reliability in water applications.
Low Head Loss Design: Streamlined flow reduces energy consumption and enhances system efficiency.
Auto-Draining Mechanism: Controls the middle chamber automatically to maintain safety and performance.
Wide Size Range: Available in nominal diameters from DN50 to DN300 for various pipeline needs.
Multiple Certifications: Certified by GS, CE, ISO9001, FM, WRAS, SIL, and PED for global compliance.
Hydraulic Operation: Operates without external power, relying on water pressure for automatic control.
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: ≤2.15h
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 backflow preventer for water systems?
A:
For potable systems, RPZ preventers suit high-risk. Check size, pressure, hazard. Double-check valves for lower risk.
Q:Why are backflow preventers essential in water systems?
A:
Backflow preventers protect drinking water from contamination by pressure or siphonage. Required by municipal codes and buildings to ensure public health and prevent cross-connection.
Q:Can backflow preventers be utilized in fire protection systems?
A:
Yes. Specialized backflow preventers in fire systems stop non-potable water from re-entering municipal supplies, ensuring safety and compliance with fire and 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 reverse flow contamination. They uphold water quality, prevent equipment corrosion, and ensure compliance with health and safety standards in commercial and industrial settings.
Q:What materials are used for the valve body and internal components?
A:
The valve body is made of ductile iron, and internal components are made of stainless steel.
Send Inquiry
*To:
Shanghai Zentif Valve Group Co., Ltd.
Shanghai Zentif Valve Group Co., Ltd.*Content:
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