Heavy-Duty Corrosion-Resistant Metal Stem Metering Valve for Extreme Service Applications with Anti-Galling Stem Technology
Product Description:
Built to withstand the world's most corrosive environments, our industrial-grade metal stem metering valve features revolutionary galling-resistant technology for critical flow control. The hardened alloy stem utilizes proprietary Stellite 6B overlay welding on 316L stainless substrate, delivering 10X longer service life in abrasive slurry services compared to conventional valves. This flow control assembly incorporates dual-bellow stem seals that eliminate packing friction while maintaining <1 ppm fugitive emissions (tested per TA-Luft). Engineered for extreme service applications in mining leach lines, offshore chemical injection, and geothermal brine handling, the valve body withstands chloride concentrations up to 150,000 ppm at 200°C. The precision metering capability maintains ±2% accuracy from 0.1-200 GPM flows despite particulate loads up to 15% solids. Includes erosion-resistant tungsten carbide seat and NACE MR0175 compliance for sour gas service.
Bullet Points:
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Stellite-clad stem resists SCC and hydrogen embrittlement
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200°C continuous service with 316L + Alloy 20 bodies
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Dual-bellow stem seal design (50,000+ cycle lifespan)
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NACE MR0103/MR0175 compliant for sour service
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HCl-compatible up to 28% concentration
Specific Application Scenario:
In copper heap leaching operations, the valve meters 98% sulfuric acid through abrasive pregnant leach solution (PLS) with 12% solids content. Stem remains galling-free after 18 months continuous operation.
Technical specification
| Commodity | Aerosol Can Valve 20mm Metering Valve For Personal Care Aerosol |
| Dosage | 100ul, 75ul, 50ul and 35ul |
| Mounting cap | aluminum |
| Stem | Plastic / metal |
| Actuator | L-actuator |
| Dip tube | according to the length of can |
FAQ:
Q: Maximum solids concentration for slurry service?
A: Verified with 20% w/w silica sand in extreme service applications.
Q: Stem replacement procedure?
A: Top-entry stem assembly allows maintenance under pressure.
Q: Compliance for offshore drilling?
A: All flow control assemblies meet NORSOK M-630 standards.
Q: Lead time for sour service valves?
A: 12 weeks for NACE certified units with PMI testing.
Q: Temperature limits during shipping?
A: Transportation safe at -40°C to +80°C per ISTA 7D.
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Heavy-Duty Corrosion-Resistant Metal Stem Metering Valve for Extreme Service Applications with Anti-Galling Stem Technology Images
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