New energy
Fluid control valves are core foundational components in the new‑energy industry chain, performing functions such as media on/off switching, flow regulation, pressure control, safety shut‑off, and pressure‑relief protection. They are widely used across major segments including **lithium batteries, hydrogen energy, photovoltaics, energy storage, and wind power**. New‑energy operating conditions typically feature characteristics such as **strong corrosivity, high purity and cleanliness, high pressure or ultra‑low temperatures, flammability and explosiveness, and miniaturization with intelligent integration**, demanding valve materials, sealing, fatigue resistance, and zero‑leakage performance that far exceed those of conventional industrial valves.
I. Lithium Battery Industry (Lithium Battery Manufacturing, Pack Assembly, Battery Recycling)
Core Operating Conditions and Media
Electrolyte (lithium hexafluorophosphate), NMP solvent, acid–base solutions, high-purity protective gases, slurry, and deionized water; under conditions of strong corrosivity, anhydrous and anaerobic environments, explosion‑proof operation, and ultra‑trace precision control, even trace impurities can lead to cell scrap.
Main application stages
1. Preparation of cathode and anode materials: The precursor synthesis acid–base piping employs fluoropolymer-lined ball valves and diaphragm valves to withstand corrosion from sulfuric acid and strong alkalis; the protective‑gas piping for powder sintering utilizes bellows‑type shut‑off valves to ensure high‑purity powders free from impurity contamination.
2. Electrolyte Synthesis and Transfer: For vacuum reaction vessels and electrolyte transfer and filling, select **fluoropolymer-lined diaphragm valves, bellows valves, and miniature needle valves** to achieve zero external leakage, prevent the volatilization and release of organic solvents, and meet explosion-proof requirements.
3. Cell filling and formation/capacity grading: At the filling station, a miniature diaphragm valve precisely dispenses trace amounts of electrolyte, ensuring high‑precision filling that directly determines cell consistency; at the formation station, the flow of nitrogen and argon protective gases is controlled.
4. **PACK and Energy Storage Battery Pack: Small stainless steel ball valves and butterfly valves are used in the liquid‑cooling circuit to regulate the ethylene glycol coolant; the fire‑protection system is equipped with emergency shut‑off valves and safety relief valves.**
Commonly used valves: fluoropolymer-lined ball valves, diaphragm valves, bellows-sealed globe valves, miniature solenoid valves, and explosion-proof control valves; materials: 316L, PFA/PTFE lining, and Hastelloy C‑276.
II. The Entire Hydrogen Energy Industry Chain (Hydrogen Production–Hydrogen Storage–Hydrogen Transportation–Hydrogen Refueling–Fuel Cells)
Hydrogen energy represents the most demanding frontier in the new‑energy sector, with key challenges including: **hydrogen embrittlement resistance, ultra‑high pressure of 70 MPa, cryogenic temperatures as low as −253°C for liquid hydrogen, zero‑leakage hydrogen handling, and explosion protection**.
1. Hydrogen production via water electrolysis
Alkaline/PEM electrolyzers, with electrolyte circulation and hydrogen–oxygen flow paths; diaphragm valves, ball valves, and check valves for controlling electrolyte, hydrogen, and oxygen, designed to be corrosion‑resistant and prevent cross‑contamination between gases; the PSA purification system employs regulating valves and shut‑off valves.
2. High-Pressure Hydrogen Storage and Transportation (35 MPa/70 MPa)
Hydrogen storage tank manifold piping, featuring forged high-pressure ball valves, globe valves, and safety valves; the valve bodies are made from an enhanced 316L alloy resistant to hydrogen embrittlement, rigorously tested for hydrogen embrittlement, with a leakage rate of ≤10⁻⁶ mbar·L/s; the safety valves provide overpressure protection.
3. Liquid Hydrogen Storage and Transportation
In ultra‑low‑temperature service at −253°C, extended bonnets and vacuum‑jacketed cryogenic globe and ball valves feature bellows seals to eliminate external leakage.
4. Hydrogen refueling station
Hydrogen dispensing nozzle pipelines, compressor circuits, and hydrogen unloading systems; **high-pressure pneumatic control valves, emergency shut-off valves, pressure-reducing valves, and safety valves**, featuring explosion-proof design and rapid response to ensure precise control of hydrogen refueling pressure.
5. Fuel Cell System
Onboard hydrogen pathways and water‑thermal management; EP mirror‑polished high‑purity ball valves and diaphragm valves, with low outgassing and oil‑free degreasing, ensure hydrogen purity while controlling cooling water and hydrogen supply.
Key requirements: hydrogen‑embrittlement‑resistant material, metal hard‑seal design, bellows‑type zero‑leakage sealing, SIL safety integrity level, and explosion‑proof certification.
III. Photovoltaic Industry (Silicon Material – Silicon Wafers – Solar Cells – Modules – Power Plants)
It is divided into two major scenarios: the production‑process side (highly corrosive, high‑purity chemicals) and the power‑plant operation‑and‑maintenance side (cooling and water‑supply/drainage systems).
1. Polysilicon production
In the cold hydrogenation stage, where high-temperature, high-pressure, particulate-laden media are present, hardmetal-sealed ball valves are used; in the distillation and reduction processes, fluoropolymer-lined valves are employed to handle chlorosilanes and other corrosive materials.
2. Silicon Wafer and Solar Cell Manufacturing
Texturing, etching, and acid cleaning: involving highly corrosive chemicals such as hydrofluoric acid and nitric acid—use fluoropolymer-lined ball valves, butterfly valves, and diaphragm valves. Gas control for diffusion and thin-film deposition processes, with high‑precision miniature solenoid valves to regulate the flow of specialty process gases. Ultra‑pure water systems for wafer cleaning, featuring 316L clean‑grade valves with mirror‑polished internal surfaces and no dead corners, thereby preventing ion contamination of the wafers.
3. Photovoltaic Power Plant System
Water-cooling circuits for inverters and energy-storage converters, electric ball valves, butterfly valves, and check valves, with glycol‑based cooling water control; standard corrosion‑resistant valves for plumbing and fire‑protection piping.
Commonly used: fluoropolymer-lined ball valves, high-purity diaphragm valves, miniature solenoid valves, and electric butterfly valves; materials: 316L and PFA‑lined fluoropolymer.
IV. Energy Storage Industry (Electrochemical Energy Storage, Flow Batteries, Molten Salt Energy Storage)
1. Lithium-ion battery energy storage container
Liquid cooling system: small electric ball valves and butterfly valves, managing ethylene glycol coolant to enable BMS‑integrated temperature control; Fire protection system: heptafluoropropane pipeline solenoid valves and emergency shut-off valves.
2. Flow batteries (vanadium redox, iron–chromium flow)
The electrolyte is a highly corrosive metal-ion solution. A large number of fluoropolymer-lined diaphragm valves and fluoropolymer-lined ball valves are used for high‑flow electrolyte circulation, offering excellent resistance to strong corrosion and enabling long‑term continuous operation.
3. Molten Salt Energy Storage
High-temperature molten-salt piping, high-temperature triple-eccentric butterfly valves, and metal hard-sealed ball valves, capable of withstanding temperatures of several hundred degrees Celsius.
V. Wind Power Industry
1. Onshore wind: gearbox cooling circuits, hydraulic braking systems, small ball valves, solenoid valves, angle seat valves; fire‑fighting pipeline shut‑off valves.
2. Offshore Wind Power Platforms: Fluoropolymer-lined valves resistant to seawater corrosion for desalination systems; high-pressure ball valves and emergency shut-off valves for hydraulic and fire‑protection systems, designed to withstand the corrosive marine salt‑spray environment.
VI. Core Technical Features of New-Energy Fluid Valves
1. Material-specific adaptation
- Corrosive media: lined with PFA/PTFE, 316L, or Hastelloy;
- High-pressure hydrogen: improved 316L stainless steel resistant to hydrogen embrittlement;
- Liquid hydrogen: ultra-low-temperature austenitic stainless steel;
- High-purity process: Electrolytic polishing of the EP inner wall, resulting in low leaching and no dead corners.
2. Sealing Performance: Bellows seal and metal hard seal, achieving zero external leakage and suitable for flammable and explosive media.
3. Intelligent Automation: Electric and pneumatic actuators, supporting Modbus and CAN communication, seamlessly integrated with BMS/EMS energy management systems for remote automated control and real-time status feedback.
4. Structure: Compact and lightweight, designed to fit the tight spaces within equipment; explosion-proof and SIL‑certified for functional safety, compliant with workshop explosion‑proof standards.
More cases
Fluid control valves are core foundational components in the new‑energy industry chain, performing functions such as media on/off switching, flow regulation, pressure control, safety shut‑off, and pressure‑relief protection. They are widely used across major sectors including **lithium batteries, hydrogen energy, photovoltaics, energy storage, and wind power**. New‑energy operating conditions typically feature **severe corrosion, high purity and cleanliness, high pressure or ultra‑low temperatures, flammability and explosiveness, as well as miniaturization and intelligent integration**, demanding valve materials, sealing, fatigue resistance, and zero‑leakage performance that far exceed those of conventional industrial valves.
Fluid control valves are the core actuating components of water purification systems, widely used in residential water filtration, commercial direct‑drinking water applications, industrial reverse osmosis pure‑water production, and various water‑treatment equipment. They perform functions such as media on/off switching, flow regulation, pressure control, backflow prevention, and automatic flushing, directly ensuring effluent water quality, equipment safety, and the overall service life of the system. The working media in these systems typically include tap water, purified water, concentrate, and cleaning agents, which impose stringent requirements on the valves: food‑grade materials, zero leaching, reliable sealing, resistance to water hammer, and corrosion resistance.
Fluid control valves are critical auxiliary components of air compressor units, primarily used in screw‑type and centrifugal compressors as well as in downstream treatment systems. They manage compressed air on/off switching, pressure regulation, pipeline pressure relief, oil–air separation, and backflow prevention, ensuring stable supply pressure, safe equipment start‑up and shutdown, and reduced risk of unit failures. The working media include compressed air, lubricating oil, and condensate, while operating conditions are characterized by pressure fluctuations, temperature variations, and the presence of oil and water. Consequently, these valves must provide reliable sealing, rapid response, and excellent fatigue resistance, making them well suited to the frequent start‑stop cycles typical of compressor applications.
Central air conditioning and HVAC
Fluid control valves are core components of central air-conditioning HVAC water systems, widely used in chilled water, cooling water, and heating hot‑water circulation loops. They perform functions such as pipeline on/off control, flow regulation, hydraulic balancing, pressure protection, and media backflow prevention, directly influencing air-conditioning temperature‑control performance, system energy consumption, and equipment operational safety. Central air-conditioning systems typically operate with ambient‑temperature, low‑pressure water as the working medium, placing stringent demands on valve sealing reliability, low flow resistance, quiet operation, and resistance to water hammer. These valves are extensively deployed in chiller rooms, heat‑exchanger stations, floor‑level piping, and indoor terminal units.
Fluid control valves are critical components of data center cooling systems, primarily deployed in chiller rooms, precision air conditioners, server liquid‑cooling loops, and fire‑water systems. They perform functions such as media on/off switching, flow regulation, hydraulic balancing, pressure protection, and emergency shut‑off, ensuring stable server heat dissipation and preventing equipment downtime due to cooling failures. These valves are subject to stringent requirements for sealing reliability, low flow resistance, leak prevention, and long‑term continuous operation. The working media typically include chilled water, ethylene glycol‑based coolants, and deionized water, with some applications involving fire‑fighting fluids.
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