Flow Control, Zero Compromise
From municipal water to industrial flow systems — total reliability starts here.
From deep wells to pipelines and wastewater treatment, Norite delivers efficiency, durability, and trust in every drop.
- 5-Year Warranty
- ISO 9001 Certified
- 24/7 Support
Micro-resistance slow closing check valve
Slow-Closing & Water-Hammer Protection
When the flow stops, the valve closes slowly instead of slamming shut, preventing water-hammer and pressure surges, thus protecting pipelines, pumps and connected equipment.
Low Resistance Flow Path & Energy-Saving
Compact design and smooth flow path minimize pressure drop — efficient for systems requiring stable flow and low energy consumption.
Compact, Lightweight & Easy to Install/Maintain
Smaller size and lower weight make installation and maintenance easier — ideal for projects with limited space or tight installation conditions.
Reliable One-Way Flow & Good Sealing Performance
Provides reliable one-way flow prevention and tight sealing when closed, preventing backflow and leakage in pipelines.
Smooth Operation, Low Noise, Long Service Life
Slow closing and damping mechanism ensure smooth, low-noise operation and reduced mechanical stress — contributing to long service life and system reliability.
Need custom specifications? Our engineers are ready to help.
Call: +86 15090163952 | Email: lisa@noritesolution.com
Proven Results That Drive Your Bottom Line
Real performance data from our Valve installations across critical industries worldwide
100% Pressure Tested
Tested under Class A sealing standard, across 10,000+ units.
20+ Years Lifespan
Proven performance in seawater, wastewater, and high-pressure pipelines.
8,000+ Valves Installed
Including power plants, municipal water systems, and industrial zones.
99.5% On-Time Delivery
Backed by lean production and strict QC.
Certifications & Standards
Technical Specifications
Engineered for optimal performance across a wide range of industrial applications
Model:
Size Range:
HH44X ,HH47X,HH48X
DN50 – DN1200, 2”-48”
Pressure Rating:
Standards:
EN 594,,BS5153
Media:
Max Temperature:
Water and neutral liquids
Body Material:
Wedge Material:
Ductile iron, carbon steel, stainless steel
Stem Material:
Sealing:
Stainless steel
EPDM / NBR
Connection:
Certifications:
Flanged to EN1092-2，ANSI B16.5,BS4504
- Application Conditions
Water Supply & Drainage Systems
Ideal for municipal or building water supply and drainage systems — installed at pump outlets or main pipelines to prevent backflow and water hammer.
Pumping Stations & Pump Outlets
For pumping stations or water/wastewater pumping systems with frequent start-stop cycles — protects pumps and pipelines from pressure shocks.
Sewage / Wastewater / Industrial Wastewater Systems
Used in wastewater treatment plants, industrial effluent pipelines or sewage systems — prevents backflow, hydraulic shock, and ensures stable operation under corrosive media.
High–rise / Building Plumbing Systems
Suitable for high-rise or large building water systems — safe backflow prevention and pressure stabilization during pump stop/start or supply disruptions.
HVAC / Heating & Cooling Circulation Systems
In HVAC, circulation water or recirculation pump systems — ensures stable and quiet operation and prevents reverse flow.
Seawater / Coastal Water / Desalination Intake–Discharge Lines
Suitable for seawater intake/discharge, desalination plants or coastal water systems — provides backflow prevention, water hammer protection, and corrosion resistance
- Valve structure diagram
- Valve size data sheet
Testing Process
From raw materials to finished products, NORITE maintains 100% testing coverage, ensuring that every valve and pump you receive is built to last — safe, stable, and globally certified.
Pressure Testing
Each valve undergoes rigorous pressure and hydrostatic testing prior to shipment to verify body strength, sealing integrity, and pressure stability—ensuring zero leakage and long-term reliability in field operation.
Torque and Functional Testing
Confirming operating performance and precision.
Cycle Life Testing
Simulating long-term use under real working conditions.
Coating & Corrosion Resistance Testing
Validating surface protection and durability.
Dimensional & Material Analysis
Using spectrometers and coordinate measuring machines (CMM) for accuracy.
Traceability - Unique product code
Each product leaving our factory is accompanied by a full inspection report and a unique serial number, enabling full traceability and lifetime quality tracking.
Real Project Cases
Proven performance in critical applications worldwide – see our valves in action
Kheng Grou Dam
- Morocco, Figuig province
Owner:Direction de l’Aménagement Hydraulique (DAH)
- Key indicators:
This project not only represents an improvement in Morocco’s water infrastructure but also demonstrates our supply capabilities and expertise in large-scale water projects.
- The type of equipment adopted:
We supplied the dam with products including electric gate valves, hydraulic butterfly valves, detachable couplings, and vent valves. The project is still under construction, and our full-cycle service continues.
Get Your Custom Quote
Our technical experts will analyze your requirements and provide a tailored solution with detailed specifications and competitive pricing.