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Low Noise Check Valve for HVAC Water Circulation Systems
US$96.00-126.00
5 Pieces
Sample price:US$126.00/piece.Request sample
Product profile
Customization
AvailableMedia
WaterTemperature
Ordinary TemperatureModel NO.
ZFH42X-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
Hh49X-10q-DN600Valve Type
Slow Closing Butterfly Check ValveNominal Diametre
DN150Nominal Pressure
Pn10Working Temperature
0℃ ~ 80℃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
Silent Axial Closing: Centrally guided disc ensures aligned movement and reduces noise during operation.
Water Hammer Prevention: Slow closing mechanism effectively prevents water hammer in pump systems.
Low Head Loss Design: Optimized flow path reduces energy consumption and pressure drop.
Ductile Iron Construction: QT450-10 ductile iron body offers robust pressure containment and corrosion resistance.
Compact Modular Design: Lightweight structure allows space-saving installation and easy maintenance.
Customizable Materials: Available in Ductile Iron, Cast Steel, and Stainless Steel to meet project needs.
OEM/ODM Support: Customization available for flange standards and technical drawing requests.
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 supply and industrial 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 installation orientation. For slow closure to prevent hammer, choose slow-closing or damped valves.
Q:Why are check valves vital in fire protection and pump systems?
A:
Check valves prevent backflow and protect pumps from reverse rotation, ensuring safety and maintaining pressure. They close when forward flow stops. Resilient seated or double-door 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, use silent or spring-loaded check valves for quick, quiet closure, reducing water hammer. High-quality designs with proper damping effectively handle demanding conditions.
Q:What are the main advantages of check valves in HVAC and chilled water systems?
A:
Check valves prevent reverse flow in HVAC and chilled water systems, protecting pumps and chillers. They offer low cracking pressure, tight shutoff, and minimal pressure loss. Their compact design and reliable performance enhance system efficiency and protect against backflow damage.
Send Inquiry
*To:
Shanghai Zentif Valve Group Co., Ltd.
Shanghai Zentif Valve Group Co., Ltd.*Content:
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