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Reduced Pressure Principle Valve for Water Supply Contamination Protection
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
Dual Check with Relief Assembly: Provides multiple levels of backflow protection with automatic pressure relief.
Ductile Iron Body Construction: Ensures high mechanical strength and durability for industrial applications.
Corrosion Resistant Components: Stainless steel stems and springs resist corrosion for long-term reliability.
Self-Operated Design: Requires no electricity or external actuator for automatic operation.
Wide Size Range: Available in nominal diameters from DN50 to DN300 for various pipeline needs.
High Safety Protection: Prevents water contamination, backpressure, and siphonage effectively.
Multiple Certifications: Certified by GS, CE, ISO9001, FM, WRAS, SIL, and PED standards.
Customization Available: ODM and OEM services available with customization from 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: ≤2.20h
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 systems?
A:
For potable systems, RPZ backflow preventers are best for high-risk areas. Consider pipeline size, pressure, and hazard. Double check valves suit lower risk; RPZ provides top protection.
Q:Why are backflow preventers essential in water systems?
A:
Backflow preventers are essential safety devices guarding drinking water from contamination due to back pressure or siphonage. They are required by most municipal codes and in high-rises to protect public health and prevent cross-connection hazards.
Q:Can backflow preventers be used in fire protection systems?
A:
Yes. Specialized backflow preventers are extensively used in fire protection systems to prevent non-potable water from entering the municipal supply, ensuring system safety and compliance with fire protection and drinking water standards.
Q:How do backflow preventers improve safety in HVAC and industrial water systems?
A:
Backflow preventers guard chilled water, heating, and process water systems from reverse flow contamination. They maintain water quality, prevent equipment corrosion, and ensure compliance with health and safety standards in commercial and industrial facilities.
Q:What are the available nominal pressures?
A:
The valve is available in PN10 (1.0 MPa) and PN16 (1.6 MPa) pressure ratings.
Send Inquiry
*To:
Shanghai Zentif Valve Group Co., Ltd.
Shanghai Zentif Valve Group Co., Ltd.*Content:
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