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DN50-DN300 Reduced Pressure Backflow Preventer with Automatic Drain Assembly
US$30.00-60.00
5 Pieces
Sample price:US$200.00/piece.Request sample
Product profile
Customization
AvailableMedia
WaterTemperature
Ordinary TemperatureModel NO.
HS41XMaterial
Cast IronConnection Form
FlangeStructure
Dual Check with Intermediate Relief AssemblyPressure
Ordinary PressureFunction
Backflow Prevention and Water Supply IsolationSealing Form
Soft SealingFlow Direction
UnidirectionStandard
GBApplication
Water Industrial UsageProduct Name
Reduced Pressure Zone Backflow PreventerModel
HS41XValve 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
Multi-Stage Backflow Protection: RPZ structure ensures multiple protection levels against backpressure and back-siphonage.
Self-Operated Design: Requires no electricity or external actuator for automatic response to pressure changes.
Durable Ductile Iron Body: Provides high mechanical strength and resistance to heavy industrial loads.
Corrosion Resistant Components: Stainless steel stems and springs ensure long-term reliability in water systems.
Wide Size Range: Available in DN50 to DN300 to fit various pipeline requirements.
Reliable Sealing System: NBR/EPDM seals ensure tight closing and prevent leakage under pressure.
Comprehensive Certifications: Certified by CE, GS, ISO9001, FM, WRAS, SIL, and PED for global compliance.
Customization Available: ODM and OEM services offered with customization from client 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: ≤1.99h
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, RPZ backflow preventers are best for high-risk areas. Consider pipeline size, pressure, and hazard level. Double check valves suit lower risks, RPZ types offer highest protection.
Q:Why are backflow preventers essential in municipal and building water systems?
A:
Backflow preventers are vital safety devices protecting drinking water from contamination due to back pressure or siphonage. Required by most municipal codes and high-rise buildings, they safeguard public health and prevent cross-connection hazards.
Q:Can backflow preventers be used in fire protection systems?
A:
Yes. Specialized backflow preventers are used in fire systems to prevent non-potable water from re-entering the municipal supply, ensuring safety and compliance with strict 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 contamination, maintaining water quality, preventing equipment corrosion, and ensuring compliance with safety regulations in commercial and industrial facilities.
Q:What materials are used for the valve body and internal components?
A:
The valve body is made of ductile iron for strength, while internal components like stems and springs are made of stainless steel to resist corrosion.
Send Inquiry
*To:
Shanghai Zentif Valve Group Co., Ltd.
Shanghai Zentif Valve Group Co., Ltd.*Content:
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