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Ductile Iron Non Return Check Valve for Municipal Water Networks
US$93.00-120.00
5 Pieces
Sample price:US$1450.00/piece.Request sample
Product profile
Customization
AvailableMedia
WaterTemperature
Ordinary TemperatureModel NO.
ZFH44X-16Q-DN150Material
Cast IronConnection Form
FlangeStructure
ButterflyPressure
Ordinary PressureFunction
Nrvr Silence, Sfcv Rubber LobeSealing Form
Soft Rubber SealFlow Direction
UnidirectionStandard
GBApplication
Industrial Usage, Water Industrial UsageProduct Name
Rubber Flap Check ValveModel
Zfh44X-16q-DN150Valve Type
Slow Closing Butterfly Check ValveNominal Diametre
DN150Nominal Pressure
Pn10Working Temperature
0℃ ~ 100℃Valve Body
Ductile IronInternal Component
Stainless Steel + RubberAdvantages-01
Micro Resistance, Low Head LossAdvantages-02
Slow Closing to Prevent Water HammerCertification
GS, CE, ISO9001Transport Package
Seaworthy Wooden CaseSpecification
DN150Trademark
ZentifOrigin
ChinaHS Code
8421199090Production Capacity
50000Key features
Slow Closing Design: Prevents water hammer with rubber flap and silent operation.
Ductile Iron Body: QT450-10 material with corrosion-resistant coating for durability.
Low Head Loss: Optimized flow design minimizes energy consumption.
Modular Maintenance: Large bolted top cover allows service without valve removal.
No Actuator Required: Automatic operation driven by flow direction, no external power.
Soft Rubber Seal: Ensures tight shutoff and prevents backflow effectively.
Customizable Options: Custom flange standards and materials like Ductile Iron or Stainless Steel.
ISO Certified: Manufactured with GS, CE, and ISO9001 certifications.
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: ≤3.91h
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 select the right check valve for water supply and industrial pipeline systems?
A:
For water supply, pump outlets, and pipelines, swing or resilient seated check valves are recommended. Consider flow velocity, pressure rating (PN10/PN16), and orientation. For applications needing slow closure to prevent water hammer, choose slow-closing or damped check valves.
Q:What makes check valves essential in fire protection and pump station systems?
A:
Check valves are vital in fire protection and pump stations, preventing backflow and safeguarding pumps from reverse rotation. They close automatically when flow stops, ensuring safety and pressure maintenance. Resilient seated or double-door check valves are favored for reliable sealing and low pressure drop.
Q:Are check valves suitable for high-frequency flow changes and automated systems?
A:
Standard check valves operate automatically with flow direction. For frequent flow changes, silent or spring-loaded check valves are ideal as they close quickly and quietly, minimizing water hammer. High-quality designs with effective damping excel in demanding conditions.
Q:What are the main advantages of check valves in HVAC and chilled water systems?
A:
Check valves are essential in HVAC and chilled water systems to prevent reverse flow and protect equipment like pumps and chillers. They offer low cracking pressure, tight shutoff, and minimal pressure loss when open. Their compact, reliable design ensures efficiency and protects sensitive components from backflow damage.
Q:What materials are available for customization?
A:
We offer customized material options including Ductile Iron, Cast Steel, and Stainless Steel to meet project-specific requirements.
Send Inquiry
*To:
Shanghai Zentif Valve Group Co., Ltd.
Shanghai Zentif Valve Group Co., Ltd.*Content:
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