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
Fixed cone valve/Hollow jet valve
Anti-cavitation and excellent energy dissipation
The inverted cone core guides the flow to discharge evenly through the annular gap, mixing with air to prevent cavitation and water hammer, ensuring stable dissipation of energy.
Simple structure with high reliability
Composed mainly of the cone, valve body, and sliding sleeve, the design is compact and durable, ensuring long-term performance under harsh operating conditions.
Excellent throttling and flow control
The sliding sleeve enables accurate flow adjustment even under low discharge, making it ideal for applications requiring precise flow control.
High flow coefficient when fully open
When fully open, the valve provides a high flow coefficient (Cv > 0.85), with minimal pressure loss and strong discharge capacity.
High flow coefficient when fully open
When fully open, the valve provides a high flow coefficient (Cv > 0.85), with minimal pressure loss and strong discharge capacity.
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
Body:
Fixed cone:
Carbon steel, cast steel, stainless steel
Carbon steel, cast steel
Sleeve:
Seat:
Stainless steel
Stainless steel+NBR
Yolk:
Driven rod:
Carbon steel
Gear box:
Size:
Gear box
DNN100-DN2000
Pressure:
Working position:
PN10,PN16,PN25 or larger
Long submerged in water
Actuation:
- Application Conditions
Hydropower bypass discharge systems
Installed downstream of turbines for bypass discharge or emergency spill control in hydropower stations
Outlet of high-pressure water transmission pipelines
Used for free discharge or flow throttling at the terminal point of pressurized pipelines.
Bottom outlet discharge for dams
Applied for dam bottom outlets to regulate reservoir levels during flood discharge or maintenance.
Water diversion and urban water transfer projects
Used for flow control in large-scale water transfer or reservoir regulation systems.
Energy dissipation structures at outlets
Installed in energy-dissipating chambers or outlet structures to protect downstream installations.
Valve size data sheet
Item | Specification Range |
Nominal Diameter (DN) | DN300 to DN3000 (larger sizes customizable) |
Nominal Pressure (PN) | PN10 / PN16 / PN25 / PN40 / PN64(standard range) |
Applicable Media | Clear water, raw water, stormwater, wastewater, muddy water |
Working Temperature | 0℃ to 80℃ (customizable for special conditions) |
Actuation Method | Manual, electric, pneumatic, hydraulic, or gear-operated |
Connection Type | Flange connection, embedded, or welded |
Body Material | Carbon steel, SS304/316, ductile iron with FBE coating |
Sealing Material | NBR, EPDM, or metal-to-metal sealing |
Flow Control Range | Full linear adjustability from 10% to 100% open |
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
Valve Maintenance and Replacement Project for Main Irrigation Pipeline at Central Morocco Dam
- Morocco
Customer/Owner: Ministry of Agriculture, Maritime Fisheries, Rural Development, Water and Forests, Morocco
- Working conditions/Challenges:
We supplied a comprehensive range of large-diameter core equipment for this project, including:DN1200 Gate Valves、Double Eccentric Butterfly Valves、 conical valves, flow control valves。All valves were specifically designed and manufactured to withstand high head and high flow conditions, ensuring excellent sealing performance and reliable opening/closing functionality. These products play a vital role in securing the efficiency and stability of the main pipeline system.
- Key indicators:
Backed by our extensive experience in the waterworks valve sector and our integrated supply chain capabilities, we provided fully customized solutions, tailored to project requirements and delivered on time. Our support enabled the construction team to achieve efficient, high-quality installation.
Get Your Custom Quote
Our technical experts will analyze your requirements and provide a tailored solution with detailed specifications and competitive pricing.