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Water Pipeline Non Return Valve with Flow Limiting Function
US$250.00-328.00
10 Pieces
Sample price:US$300.00/piece.Request sample
Product profile
Customization
AvailableMedia
WaterTemperature
Ordinary TemperatureModel NO.
LH45X-16Q-DN100Material
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
Lh45X-16q-DN100Valve Type
Slow Closing Butterfly Check ValveNominal Diametre
DN100Nominal 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
DN100Trademark
ZentifOrigin
ChinaHS Code
8421199090Production Capacity
50000Key features
Slow Closing Function: Prevents water hammer and protects pipelines from pressure surges.
Flow Limiting Capability: Offers precise hydraulic regulation and non-return protection in one unit.
Durable Ductile Iron Body: Constructed with QT450-10 ductile iron for high strength and longevity.
Dual Pressure Gauges: Allows real-time monitoring of both sides of the control circuit.
Pilot-Operated Control: Uses hydraulic control circuit for automatic response to flow conditions.
Soft Rubber Sealing: Ensures tight shutoff and low pressure drop with resilient sealing.
Customizable Materials: Options include Ductile Iron, Cast Steel, and Stainless Steel.
OEM/ODM Services: Supports custom designs with PDF/CAD 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: ≤3.97h
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 or resilient seated check valves are recommended. Consider flow velocity, pressure rating (PN10/PN16), and installation orientation. For 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 prevent backflow and protect pumps from reverse rotation in fire protection and pump stations. They close automatically when forward flow stops, ensuring system safety. Resilient seated or double-door check valves offer 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 systems with frequent flow changes, silent or spring-loaded check valves are advised as they close quickly and quietly, mitigating water hammer. High-quality designs with proper damping are effective 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 design and reliable performance maintain system efficiency and safeguard sensitive components from backflow damage.
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Shanghai Zentif Valve Group Co., Ltd.
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