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
Single-Air Release Valve
Automatic Micro-Air Release
Designed for continuous release of entrapped air during pipeline operation, maintaining system efficiency and preventing air locks.
Anti-Shock Air Control
Incorporates a cushioned air release mechanism to prevent sudden pressure changes and minimize water hammer risk in pressurized systems.
Corrosion-Resistant Construction
Internal and external fusion-bonded epoxy coating ensures long-term durability. Stainless steel float and optional anti-insect screen available.
Reliable Low-Pressure Sealing
Tight sealing at pressures as low as 0.2 bar ensures no leakage during normal operation. Compact full-bore design supports smooth airflow.
Maintenance-Free & Robust Design
No levers or linkages — vertical float movement guided within a smooth barrel. Simple mechanism reduces wear and vibration.
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:
QB1X Series
DN25 – DN200 (1″ – 8″)
Pressure Rating:
Standards:
PN10 / PN16 / PN25；125LB / 150LB
EN 1074-4, AWWA C512
Media:
Max Temperature:
Water and neutral liquids
Body Material:
Float:
Ductile Iron (EN-GJS-500-7), Carbon Steel, Stainless Steel
Stainless Steel 304/316
Connection:
Sealing:
Flanged (EN1092-2, ANSI B16.5)
EPDM / NBR
Certifications:
- Application Conditions
Water Distribution Networks
Installed at high points in pipelines to automatically release accumulated air, ensuring consistent flow.
Building Water Supply Systems
Used in vertical risers and roof tanks to prevent air pockets in multi-story buildings.
Pump Discharge Lines
Helps maintain pump efficiency by releasing micro-air during operation.
Industrial Cooling & Circulation Systems
Suitable for closed-loop systems where gradual air removal is required.
Irrigation Pipelines
Ensures even water distribution by eliminating air traps in long horizontal runs.
- 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
Ecuador Municipal Water Transmission Project
- Quito, Ecuador
Customer/Owner: Carbon Black Plant in Singapore
- Working conditions/Challenges:
Multiple sets of double orifice air release valves were installed in long-distance pipelines across mountainous regions to ensure stable air management during elevation changes.
- The type of equipment adopted:
Automatic air release valves such as Double Orifice Air Valves are critical in maintaining efficient pipeline operation — releasing entrapped air at high points and admitting air during vacuum conditions, preventing water hammer and ensuring continuous flow.
Get Your Custom Quote
Our technical experts will analyze your requirements and provide a tailored solution with detailed specifications and competitive pricing.