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
WJ41H Bellows Seal Globe Valve
Double-Seal Design for Zero Leakage
The bellows seal combined with packing provides a dual sealing mechanism, ensuring robust, leak-proof performance even in demanding applications.
Hard-Alloy Overlay Seats for Wear & Corrosion Resistance
The disc is rigidly fixated to prevent fluttering and wear during operation, ensuring stable long-term performance.
Nitrided Stem for Superior Sliding Performance
The stem undergoes nitriding surface treatment to provide excellent sliding and frictionresistance characteristics, ensuring smooth operation and long service life.
Suitable for High-Pressure, High-Temperature and Corrosive Media
The bellows seal globe valve is specifically designed for harsh environments, providing reliable sealing and control in highpressure, high-temperature, and corrosive media.
Compact Structure with Low Maintenance Cost
With a compact design and bellows protecting the stem and packing, the valve requires minimal maintenance, reducing downtime and operating costs.
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:
WJ41H
DN15 – DN400,1/2”-16”
Pressure Rating:
Standards:
150LB;200PSI/250PSI/
300PSI
DIN EN13709-2003
Media:
Max Temperature:
Water, Oil, Gas
Body Material:
Wedge Material:
EN-GJS-500-7 (GGG-50)
Ductile iron GJS-500-7 (GGG-50),SS304,SS316,
Aluminum bronze，Duplex stainless steel
Stem Material:
Sealing:
Stainless steel，Bronze, Brass
Connection:
Certifications:
Flanged to EN1092-2，ANSI B16.5,BS4504
- Application Conditions
High-Temperature & High-Pressure Systems
Suitable for steam, hot oil and high-pressure hot/cold water systems where sealing reliability is critical.
Corrosive Media & Hazardous Fluids
Used in chemical, petrochemical, gas transport and hazardous media services where leak-proof sealing is required.
High-Cycle or Frequent Operation Systems
Designed for frequent cycling or emergency shutdown services with long lifecycle requirements.
Vacuum or Low-Temperature Environments
Capable of handling vacuum, cryogenic or extremely low-temperature conditions while maintaining hermetic sealing.
Critical Safety or Environmental Compliance Situations
Ideal for applications requiring fugitive emissions control, environmental safety or strict leak-proof standards.
- Typical Installation Locations
Pump Discharge
Installed immediately downstream of the pump discharge; used for pump isolation, maintenance operations and prevention of backflow or fugitive emissions.
Next to Heat Exchanger
Located adjacent to heat exchangers or thermal-oil systems; ideal for high-temperature and high-pressure service with demanding sealing requirements.
Steam or Condensate Line
Used in steam or condensate pipelines where high pressure, high temperature, and frequent operation are present.
Hazardous/ Toxic Media Isolation
Employed as a key isolation mechanism in chemical, petrochemical or other hazardous fluid circuits to ensure zero leakage.
Cryogenic / Vacuum Service Line
Applicable for cryogenic or vacuum service lines where conventional packing might fail.
- Valve size data sheet
- Selection Guideline Table
Project | Suggested explanation |
Pipe Size Matching | It is generally recommended that the nominal diameter of the valve match that of the pipeline. For small diameters of PVC / , it is recommended to be of the same size or one size smaller. |
Flow Rate & Pressure Drop | Determine the maximum/minimum flow rate and allowable pressure drop of the system, and calculate the Cv value; Select the model that meets or is better than the Cv . |
Temperature & Pressure Rating | Check whether the materials of the valve body, bellows, valve seat, etc. can withstand the highest temperature and highest pressure in the working conditions. |
Media Type | If the medium is corrosive, steam, gas or toxic, it is recommended to choose a corrugated pipe structure and select corrosion-resistant materials. |
Installation Orientation | It is better for the valve stem to be vertically upward. Try to avoid upside down and side installation to ensure the service life of the corrugated pipe and facilitate maintenance. |
Operating & Maintenance Space | Make sure there is sufficient operating space near the handwheel or actuator. When replacing corrugated pipes, there should be disassembly space. |
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
Indonesia power plant project
- Jakarta, Indonesia
- Working conditions/Challenges:
The steam boiler system of a local power plant in Jakarta is undergoing renovation and a batch of valves need to be replaced.
- The type of equipment adopted:
We provided 300 sets of DN15-DN50 bellows stop valves for this project。
Key indicators: The project was upgraded and renovated as scheduled and is currently operating smoothly.
Get Your Custom Quote
Our technical experts will analyze your requirements and provide a tailored solution with detailed specifications and competitive pricing.