Zhengzhou, China – Zhejiang Datang Valve Co., Ltd., a professional enterprise specializing in the R&D, production and sales of industrial valves, is proud to announce the launch of its high-performance Dome Valve, designed to meet the rigorous demands of modern industrial conveying systems. This innovative product is tailored to address the challenges of handling dry powder and granular materials, marking another milestone in the company’s commitment to providing reliable, efficient and safe valve solutions for global industrial clients.
As a leading player in the education and industrial equipment industry, Zhejiang Datang Valve Co., Ltd. has long focused on developing high-quality valve products that cater to diverse industrial needs. The newly launched Dome Valve is a testament to the company’s expertise in industrial fluid control, integrating advanced technology and user-centric design to deliver exceptional performance in critical applications.
### Core Application Conditions (Core Positioning) The Dome Valve developed by Zhejiang Datang Valve Co., Ltd. is specifically designed for dry powder/granular material handling, high-wear environments, pneumatic conveying systems, quick opening and closing operations, and air-lock sealing conditions. Its core lies in the combination of inflatable flexible sealing and spherical frictionless opening and closing, making it the ideal choice for cutting flowing or static material columns, pressure tank feeding and discharging, and pipeline switching. This design ensures seamless operation even in the most demanding industrial scenarios.
### Medium Applicability Range (Must Meet) ✅ Suitable Media: - Dry powder and fine particles, including fly ash, cement, mineral powder, coal powder, alumina, lime, dry slag, and grain powder. - Particle size: ≤10mm (optimally ≤2mm), with good fluidity, no viscosity, no caking, and fiber content <5%. - Gas-solid two-phase media, dry gas, and clean low-pressure liquid. ❌ Not Recommended/Prohibited: - High-viscosity, paste-like, or sludge media; water-containing caking materials; fiber or long-particle materials. - Strongly corrosive liquids, flammable, explosive, or highly toxic media.
### Temperature/Pressure Parameters (Key for Model Selection) - Nominal Pressure: PN1.0~1.6MPa (conventional); maximum PN2.5/4.0MPa (special wear-resistant type). - Working Pressure: ≤1.0MPa (conveying system pressure); sealing inflation pressure 0.4~0.6MPa (must be ≥0.15MPa higher than the system pressure). - Temperature Range: - Ordinary rubber seal: -20℃~200℃ - Fluorine rubber/special seal: -40℃~250℃ - Water-cooled/ceramic valve core: up to 400~480℃ (special for high-temperature ash/slag). - Air Source Requirement: Clean, dry, oil-free compressed air with stable pressure of 0.4~0.6MPa.
### Optimal Application Scenarios and Industries 1. Power Industry (Core Industry) - Pneumatic ash conveying in power plants: bin pump/sending tank feeding valves, discharging valves, balance valves, exhaust valves, and plugging valves. - Conveying systems for fly ash, bottom ash, and desulfurized gypsum, featuring high wear resistance and frequent opening/closing (5~8 seconds per cycle). 2. Building Materials/Cement Industry - Pneumatic conveying, silo bottom discharging, and pipeline switching of raw meal, clinker, cement powder, slag powder, and lime powder. 3. Metallurgy/Mining Industry - Conveying of iron ore powder, aluminum powder, zinc powder, dust, and dry slag; silo control systems. 4. Chemical/Environmental Protection Industry - Conveying of carbon black, titanium dioxide, PVC powder, catalysts, dry chemical powders, and waste incineration fly ash. 5. Food/Pharmaceutical Industry (Hygienic Grade) - Closed conveying of dry materials such as flour, starch, milk powder, sugar powder, and medicinal powder (equipped with stainless steel and food-grade seals).
### Advantages in Working Condition Adaptation (Why Choose) - Zero Friction Sealing: The sealing ring shrinks during opening and closing, maintaining a 0.8~1.5mm gap with the spherical valve core, ensuring no mechanical wear and a long service life. - Reliable Sealing with Zero Leakage: When closed, the inflatable seal expands to tightly hold the spherical surface, achieving air-lock sealing that is suitable for positive or negative pressure pneumatic conveying. - Unobstructed Flow: The fully open straight flow channel minimizes flow resistance, preventing material blockage and resisting erosion. - Quick Opening and Closing: 90° rotation enables opening and closing in 5~8 seconds, ideal for automated and high-frequency operation systems. - Wear and Erosion Resistance: The valve core is hardened (HRC65+) and coated with ceramic or tungsten carbide, making it suitable for high-abrasion dry materials.
### Unsuitable Working Conditions (Avoid These Pitfalls) - Wet materials, sludge, high-viscosity media, materials with water content >5%, easy-caking materials, and fiber/long-particle media. - Strongly corrosive liquids, high-temperature steam, high-pressure liquids, and flammable, explosive, or highly toxic media. - Working conditions requiring flow regulation, long-term half-open operation, or frequent opening/closing with liquid/wet materials.
Zhejiang Datang Valve Co., Ltd. has built a comprehensive product portfolio covering Power Plant Valve, Corrosion-Resistant Valve, Ceramic Valve, Ceramic Ball Valve, Wear-Resistant Valve, Industrial Valve, and the newly launched high-performance Dome Valve. The company adheres to the business philosophy of “quality first, customer-oriented, innovation-driven”, with all products undergoing strict quality inspections to ensure reliability and stability.
“Our new Dome Valve is designed to solve the pain points of dry material conveying in industrial scenarios,” said a spokesperson for Zhejiang Datang Valve Co., Ltd. “We have integrated advanced sealing technology and durable materials to ensure it meets the high standards required by various industries. This launch reinforces our commitment to providing professional valve solutions that enhance efficiency and safety for our clients.”
With its strong R&D capabilities and focus on user needs, Zhejiang Datang Valve Co., Ltd. continues to innovate and expand its product line, striving to become a global leader in industrial valve solutions. The new Dome Valve is now available, offering industrial clients a reliable, efficient, and cost-effective option for their material conveying needs.