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Dynamic Flow Guided Check Valve for Water Pipeline Systems
US$90.00-117.00
5 Pieces
Sample price:US$110.00/piece.Request sample
Product profile
Customization
AvailableMedia
WaterTemperature
Ordinary TemperatureModel NO.
ZFHD41X-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
Micro Resistance Slow Closing Check ValveModel
Zfhd41X-16q-DN150Valve Type
Slow Closing Butterfly Check ValveNominal Diametre
DN150Nominal Pressure
Pn10Working Temperature
0℃ ~ 120℃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
Anti-Water Hammer Design: Slow-closing mechanism prevents water hammer damage in pump outlets and pipelines.
Bubble-Tight Sealing: Resilient-seated soft rubber seal ensures zero leakage and bubble-tight performance.
Durable Construction: Ductile iron body with stainless steel internal components for harsh environments.
100% Pressure Tested: All units undergo rigorous testing to EN 598 and ISO 5208 standards.
Compact Structure: Lightweight and space-saving design ideal for limited installation areas.
Customizable Materials: Options for Ductile Iron, Cast Steel, and Stainless Steel to meet project needs.
Easy Maintenance: Modular structure allows for simple replacement and maintenance.
Wide Application Range: Suitable for HVAC, fire protection, water supply, and drainage systems.
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: ≤3.94h
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 industrial pipelines, swing check valves or resilient seated check valves are commonly recommended. It is important to consider flow velocity, pressure rating (PN10/PN16), and installation orientation. For applications requiring slow closure to prevent water hammer, slow-closing or damped check valves should be selected.
Q:What makes check valves essential in fire protection and pump station systems?
A:
Check valves play a critical role in fire protection and pump stations by preventing backflow and protecting pumps from reverse rotation. They automatically close when forward flow stops, ensuring system safety and maintaining pressure. Resilient seated or double-door check valves are particularly popular due to their reliable sealing and low pressure drop.
Q:Are check valves suitable for high-frequency flow changes and automated systems?
A:
Standard check valves are designed for automatic operation based on flow direction. For systems with frequent flow changes, silent check valves or spring-loaded check valves are recommended as they close quickly and quietly, reducing water hammer. High-quality designs with proper damping can handle demanding conditions effectively.
Q:What are the main advantages of check valves in HVAC and chilled water systems?
A:
Check valves are widely used in HVAC and chilled water systems to prevent reverse flow and protect equipment such as pumps and chillers. They feature low cracking pressure, tight shutoff, and minimal pressure loss when open. Their compact design and reliable performance help maintain system efficiency and protect sensitive components from damage caused by backflow.
Q:What certifications does the product have?
A:
The product holds GS, CE, and ISO9001 certifications.
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Shanghai Zentif Valve Group Co., Ltd.
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