Tiếng Việt
ភាសាខ្មែរIf you are looking for a compact industrial valve that is easy to operate and cost-effective for small water supply, HVAC, or fire protection systems, the DN40 butterfly valve (φ48) is a suitable choice. This product features a simple design, smooth operation, reasonable price, and high durability.
Design and Features
The most notable feature of the DN40 butterfly valve is its compact overall size and lightweight construction. This makes installation and transportation easy, as it takes up minimal space in the piping system.
Similar to other butterfly valves, the DN40 body has a slim, flat shape, optimising installation space.
Due to its small size, the torque required to rotate the disc is low, making the DN40 butterfly valve very compatible with a lever-operated actuator. The lever usually has notches to fix the disc at partially open positions (for flow regulation), making the valve even more compact and easy to operate manually.
Although it is small, the DN40 butterfly valve can also be equipped with an electric or pneumatic actuator when automation or remote control is needed in industrial systems.
Basic Technical Specifications
Below are the key technical details you should consider before purchasing:
- Nominal size: DN40 (φ48 mm)
- Working pressure: PN10 / PN16
- Operating temperature: -10°C to 120°C
- Body material: Ductile iron, cast iron, or stainless steel
- Disc material: Cast iron, bronze-aluminium, or stainless steel
- Sealing material: EPDM, NBR, or PTFE (depending on the application)
- Connection type: Wafer style – clamped between 2 flanges (JIS / BS / ANSI standard)
- Operation method: Lever, handwheel, electric actuator, or pneumatic actuator
Key Advantages of DN40 Butterfly Valves
Are you wondering why you should choose a DN40 butterfly valve instead of a small ball or gate valve? Here are the main highlights of this product:
- Compact design, space-saving: Suitable for piping systems in technical cabinets, duct boxes, or tight spaces.
- Quick and easy operation: The valve fully opens or closes with just a 90° rotation.
- Cost-effective: Much lower investment cost compared to stainless steel ball valves or gate valves of the same size.
- Easy installation and maintenance: Simple construction with few components allows for quick assembly and minimal effort.
- Suitable for various working environments: Can be used for clean water, compressed air, light steam, or neutral solutions.
Practical Applications of DN40 Butterfly Valves
Although small, the DN40 butterfly valve plays an important role in many technical systems. Some common applications include:
- Domestic water supply systems, apartment buildings, hotels, and hospitals
- Compressed air pipelines, light steam, and low-pressure industrial gas
- Central air conditioning systems (HVAC)
- Small fire protection systems, branch lines in pumping stations
- Food industry, light chemicals, and clean water treatment systems
Latest Price Reference for φ48 Butterfly Valves
Depending on the material and type of actuator, DN40 butterfly valves have different prices. You can refer to the table below to choose the most suitable option:
| Valve Type | Reference Price (VND/unit) |
|---|---|
| DN40 Cast iron butterfly valve (lever) | 350,000 – 600,000 |
| DN40 Stainless steel butterfly valve | 1,200,000 – 2,200,000 |
| Electric-actuated butterfly valve | 2,800,000 – 5,000,000 |
| Pneumatic actuated butterfly valve | 3,000,000 – 5,500,000 |
Note: Prices may vary depending on material, brand, and quantity. Please get in touch with Thép Bảo Tín for the fastest and most accurate price quote!
Need Advice on Choosing a DN40 Butterfly Valve? Bao Tin Steel is Always Ready to Assist!
At Bao Tin Steel, we offer a full range of genuine butterfly valves, from standard to premium models, suitable for a wide variety of working environments.
Our Commitments to You:
- Products with full CO-CQ certification, 100% genuine
- Free technical consultation, helping you choose the right type for your system
- Competitive pricing, with products always in stock
- Fast delivery – on time – guaranteed quality
Contact us now for support via Bao Tin Steel’s hotline, Zalo, or email.
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- Hotline/Zalo: 0932 059 176
- Email: bts@thepbaotin.com
Tiger Steel is a subsidiary of Bao Tin Steel.