Heavy-Duty Corrosion-Resistant Metal Stem Metering Valve for Extreme Service Applications with Anti-Galling Stem Technology

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:

• Stellite-clad stem resists SCC and hydrogen embrittlement

• 200°C continuous service with 316L + Alloy 20 bodies

• Dual-bellow stem seal design (50,000+ cycle lifespan)

• NACE MR0103/MR0175 compliant for sour service

• 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

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.

Future industry manufacturing complex spans an area of nearly 7,000 square meters. It incorporates six high-speed aerosol valve production lines and more than 30 special valve production lines.

Each year, Future industry aerosol can produce up to one billion aerosol valves. Our main products are air freshener aerosol valve, insecticide spray aerosol valve, butane gas aerosol valve, carburetor cleaner aerosol valve, ribbon spray aerosol valve, snow spray aerosol valve,paint spray aerosol valve, fluid spray aerosol valve, portable stove gas aerosol valve, 360 degree aerosol valve, powder spray aerosol vave. Also we have expanded the export market of aerosol metering valves, aerosol caps and aerosol cans.We have also built five standardized workshops to conduct different operations in order to meet the requirements of various customers to ensure we always meet production demands and timelines.

Production of the valve mounting cups is carried out in this workshop. We use a high-speed automatic stamping machine to transform high-quality steel plates into valve mounting cups. Due to the high degree of its automation, this equipment can help to reduce labor costs and increase production efficiency significantly.

In addition, we utilize an efficient machine that can automatically press an outer rubber ring into a valve mounting cup in order to provide superior sealing performance in the process of final assembly.

This workshop contains over 20 injection molding machines and three injection molding lines. Among them, our injection molding machines are used to produce a variety of accessories such as valve stems, valve chambers, actuators, and spray caps, etc.

Due to efficient automation, we require a very small number of staff to run these more than 20 injection molders. During the production process, our quality control inspectors are responsible for sampling and testing every batch of accessories. Additionally, our injection molding line has the capability to produce various sizes of dip tubes in automatic mode.

This workshop is used to assemble all kinds of accessories. It is equipped with automated assembly equipment to greatly increase production efficiency and provide our customers with enhanced profits.

After assembly is completed, our valves will be automatically counted and packed. We are proud to say we are one of the few companies in the industry that possess advanced abilities in product research and development. Every new product needs an innovative mold. For this reason we utilize high-precision wire cutting machines and machine tools that can form our molds into exquisite shapes.

We possess a wide range of technical production and R & D expertise

Whatever your industry related need may be, just ask, we can provide the solution.