Van bi đôi PVC | Van bi thật sự | 1/2″-4″ | NPT/BSPT/ANSI | 225PSI | NSF61

Tổng quan về sản phẩm

The PVC Double Union Ball Valve is a high-performance plastic flow control valve manufactured from premium PVC/CPVC/UPVC materials. Designed for durability and corrosion resistance, this valve series covers a complete size range from 1/2″ to 4″ (20mm to 110mm), accommodating diverse industrial and civil applications including water supply systems, chemical piping, water treatment facilities, environmental engineering, and pharmaceutical industries.

The ball valve operates by rotating a spherical valve core with a through-hole inside the valve body to achieve fluid on/off control and flow regulation. The True Union (double union) design allows the valve body to be quickly removed from the piping system without disassembling the pipeline connections, significantly facilitating equipment maintenance and replacement.

This product complies with multiple international mounting standards including NPT, BSPT, ANSI, TỪ, CNS, JIS, and BS, making it suitable for installation requirements across different countries and regions. It holds ISO9001, CN, ICAS, and NSF61 certifications, meeting EU standards and drinking water safety requirements.

Van bi đôi PVC

Thông số kỹ thuật

Các tính năng chính

1. Premium PVC/CPVC/UPVC Material with Excellent Corrosion Resistance
The valve body is integrally molded from high-quality PVC, CPVC, or UPVC granules, ensuring uniform material distribution and structural stability. PVC material exhibits outstanding resistance to acids and alkalis, suitable for various chemical media environments. CPVC (polyvinyl clorua clo hóa) offers enhanced temperature resistance and mechanical strength compared to UPVC. The valve body material is non-toxic and hygienic; CPVC material can also pass FDA certification, suitable for food and drinking water grade applications.

2. True Union Design for Easy Maintenance
The double union structure is a key feature of this product. This design allows the valve to be quickly disassembled without damaging pipeline connections, requiring no special tools. This significantly reduces maintenance difficulty and time costs in piping systems, particularly suitable for industrial applications requiring regular inspection or replacement.

3. Excellent Fluid Dynamic Performance
PVC piping has a smooth inner wall with a roughness coefficient of only 0.009, ensuring low flow resistance and high flow efficiency. This characteristic effectively improves the hydraulic conditions of the piping network and reduces pumping energy consumption.

4. Lightweight Design for Easy Installation
Plastic valves weigh only 1/6 of cast iron pipe equivalents. The lightweight body, combined with threaded connections (NPT/BSPT/ANSI, vân vân.), enables quick and simple installation while effectively reducing leakage risks.

5. Multiple Handle and Body Color Options
To meet different application scenarios and identification requirements, handles are available in grey, red, màu xanh da trời, and black; valve bodies are available in grey, black, white, red, green, và màu xanh, facilitating visual management and color-coded identification of piping systems.

Van bi đôi PVC

Ứng dụng

The PVC Double Union Ball Valve, with its excellent corrosion resistance, lightweight design, and convenient maintenance characteristics, is widely used in the following fields:

• Water Supply Systems: Indoor water supply and reclaimed water systems in residential, thuộc về thương mại, and industrial buildings
• Xử lý nước: Water treatment plant piping systems, Reverse Osmosis (RO) systems, Nanofiltration (NF) systems, Microfiltration (MF) systems
• Wastewater Treatment: Sewage piping systems, industrial wastewater treatment
• Tưới tiêu nông nghiệp: Farmland irrigation, aquaculture systems
• Chemical and Environmental Protection: Acid, alkali, and chemical solution conveying systems
• Pure Water and Ultrapure Water: Pure water and drinking water piping systems, ultrapure water transmission
• Seawater and Brine Systems: Seawater piping, brine conveying
• Swimming Pools and Water Features: Swimming pool circulation systems, fountains, water feature facilities
• Ứng dụng công nghiệp: General industrial piping systems in light chemical, dược phẩm, power plants, vân vân.

Đóng gói và vận chuyển

• Packing Method：Place each item in a small plastic bag, then pack them into a cardboard box.
• Lô hàng：Supported by sea, đường sắt, không khí, or road transport to designated ports. Container loading and securing services provided to ensure safe transit.

Điều khoản thanh toán

• T/T, L/C trả ngay, Công Đoàn Phương Tây, PayPal, Thẻ tín dụng, vân vân.

Hồ sơ công ty

Công ty công nghệ năng lượng Lạc Dương Datang, Công ty TNHH is a professional industrial valve supplier, dedicated to providing reliable flow control solutions for water treatment, chemical, dầu & khí đốt, HVAC, và hệ thống đường ống công nghiệp trên toàn thế giới. All products are manufactured to international standards with CE and ISO 9001 chứng nhận. Với hơn 10 số năm kinh nghiệm, một cơ sở hiện đại của 80,000 mét vuông, Và 200+ nhân viên chuyên nghiệp, chúng tôi phục vụ khách hàng tại 10+ quốc gia có sản phẩm chất lượng, giá cả cạnh tranh, và giao hàng đáng tin cậy.

Van bi đôi PVC

Câu hỏi thường gặp

Q1: What is the maximum operating temperature for PVC and CPVC ball valves?

MỘT: PVC ball valves are recommended for temperatures up to 40°C (104° F). CPVC ball valves can handle temperatures up to 54°C (129° F) for continuous service, with intermittent service up to 70°C (158° F) at reduced pressure. For applications exceeding these temperatures, alternative materials should be considered.

Q2: What is the difference between True Union (Double Union) and standard ball valves?

MỘT: A True Union (double union) ball valve has detachable end connectors on both sides, allowing the valve body to be removed from the pipeline without disturbing the pipe connections. This design greatly simplifies maintenance, repair, and replacement. Standard ball valves are typically single-piece or split-body designs that require partial pipeline disassembly for removal.

Q3: Which thread standard should I choose — NPT or BSPT?

MỘT: This depends on your regional piping standards. NPT (Chủ đề ống quốc gia) is the standard in North America, while BSPT (British Standard Pipe Taper) is widely used in Europe, Asia, and Commonwealth countries. Both are tapered threads that provide a seal through thread interference. We also offer ANSI, TỪ, CNS, JIS, and BS options to match your specific installation requirements.

Q4: How does the pressure rating change with temperature?

MỘT: As operating temperature increases, the maximum allowable working pressure decreases. For PVC, derating begins above 20°C, with approximately 50% reduction at 40°C. CPVC maintains higher pressure ratings at elevated temperatures. Always refer to the pressure-temperature rating table and ensure your application operates within the specified limits.

Q5: Can this valve be used for drinking water applications?

MỘT: Đúng. This valve is NSF61 certified, which verifies that all material components that come into contact with drinking water meet strict health effects standards. The certification ensures that no harmful chemicals leach into the water, making it suitable for potable water systems, chế biến thực phẩm, and beverage production applications.