You’re probably looking for an efficient, durable solution that’s easy to monitor for your piping or fire protection (PCCC) system. If so, the ROBO Signal Butterfly Valve is the perfect choice, recommended by Bao Tin Steel. This valve stands out with its sturdy design, stable operation, and especially its integrated signal box, allowing you to remotely monitor open/close status—ideal for connection to control panels or centralised monitoring systems. Whether you are installing a building water supply system or upgrading a factory fire protection system, the ROBO signal butterfly valve meets both technical requirements and long-term durability.
Let’s explore in detail with Bao Tin Steel to see why this product is so highly favoured!
Design and appearance

The ROBO Signal Butterfly Valve stands out visually with its signature red epoxy coating, making it easily identifiable in fire protection (PCCC) systems or industrial piping networks. The valve body is made of one-piece ductile iron, with the “ROBO” logo and flow direction arrow embossed directly on the body, giving a solid and professional look.
- Manual Lever: Features a round wheel-style hand lever that is easy to operate, even with gloves. The stem connecting the lever is polished stainless steel, enhancing durability and aesthetics.
- Signal Box: Positioned on top of the valve, the electrical signal box has a transparent cover for clear observation of the disc indicator:
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Red: Valve closed or partially open
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Yellow: Common/intermediate signal
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Green: Valve fully open
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The wiring from the signal box is neatly routed, ready for connection to a central monitoring system.
Overall, the valve conveys a sense of professional quality, durability, and user-friendliness, making it suitable for both civil and industrial applications that demand high safety standards.
Technical Specifications of ROBO Signal Butterfly Valve
To help you choose the right model for specific applications, below is a detailed specification table compiled by Thép Bảo Tín for sizes DN50 to DN200:
| Item | Details |
|---|---|
| Product Name | ROBO Signal Butterfly Valve |
| Model | WBS Series (WBS-050 to WBS-200) |
| Nominal Size (DN) | DN50, DN65, DN80, DN100, DN125, DN150, DN200 |
| Operating Pressure | PN10 / PN16 / JIS10K |
| Operating Temperature | -10°C to +80°C |
| Design Standards | BS5155, API609 |
| Face-to-Face Dimension | ISO 5752, BS EN 558-1 |
| Connection Standards | BS4504, DIN2632, JIS B2220, ASME B16.42 |
| Body Material | Ductile Iron (ASTM A536) |
| Disc & Stem Material | Stainless Steel 304 (AISI 304) |
| Seal Material | EPDM (corrosion-resistant, water- and heat-resistant rubber) |
| Operation Mechanism | Mechanical hand lever with gearbox |
| Electrical Signal | Limit switch contacts for valve position monitoring (NO/NC) |
| Position Indicator | Disc colour: Red (Closed), Yellow (Intermediate), Green (Fully Open) |
| Application Environment | Clean water, fire-fighting water, treated water, non-corrosive gases, HVAC |
| Origin | ROBO-standard production – popular brand in Vietnam & internationally |
See the ROBO valve catalogue to see many other types of valves that are also manufactured!
Specifications of ROBO Signal Butterfly Valve
The ROBO signal butterfly valve comes in a variety of sizes, making it suitable for different systems, whether large or small. Specifically, the available nominal diameters (DN) are:

Key Advantages of the ROBO Signal Butterfly Valve
Easy Valve Status Monitoring
- The valve comes with a built-in electric signal box, allowing you to monitor the open/close status remotely via a control system or fire alarm centre. The colour-coded disc provides a clear visual indication of operational status.
Sturdy Design – Long-lasting Durability
- With a body made of one-piece ductile iron and a stem and disc made of 304 stainless steel, the valve ensures high mechanical strength and excellent corrosion resistance in humid or high-pressure environments.
Easy Installation and Flexible Replacement
- The valve supports multiple flange standards (JIS, DIN, BS, ANSI), making integration into existing systems simple without major modifications. Component replacement and maintenance are also convenient.
Smooth and Precise Operation
- The mechanical handwheel combined with a gear assist system allows operators to open and close the valve smoothly, even under high water pressure.
Cost-effective – Long-term Efficiency
- The product offers a high cost-to-performance ratio with stable quality, low failure rate, long service life, and easy maintenance, helping reduce long-term operational costs
Practical Applications
With its smart design and stable operation across various environmental conditions, the ROBO Signal Butterfly Valve is widely used in systems such as:

Fire Protection Systems (PCCC)
- Widely used in sprinkler systems or fire water supply pipes. The signal box notifies the central control panel if the valve is not fully open or closed, ensuring absolute safety in emergencies.
High-Rise Buildings, Apartments, Shopping Centres
- Installed in technical rooms, service shafts, or basements to control water flow and facilitate efficient maintenance of piping systems.
Water Treatment Plants, Pump Stations, Water Supply and Drainage Works
- Capable of withstanding pressure and operating reliably in wet conditions or continuous flow, making them ideal for urban and industrial water supply and drainage systems.
HVAC Systems (Chilled & Hot Water)
- Easily regulates water flow in central air conditioning or cooling systems, particularly suitable for factories and industrial zones.
Industrial Zones, Manufacturing Plants, Logistics Warehouses
- Used to manage fire water networks, cooling systems, or liquid waste treatment systems.
Latest ROBO signal butterfly valve price list [Reference]
| Nominal Diameter (DN) | Model | Pressure (PN) | Reference Price (VND/unit) |
|---|---|---|---|
| DN50 | WBS-050 | PN16 | 850,000 – 950,000 |
| DN65 | WBS-065 | PN16 | 1,000,000 – 1,100,000 |
| DN80 | WBS-080 | PN16 | 1,200,000 – 1,300,000 |
| DN100 | WBS-100 | PN16 | 1,450,000 – 1,600,000 |
| DN125 | WBS-125 | PN16 | 1,850,000 – 2,000,000 |
| DN150 | WBS-150 | PN16 | 2,100,000 – 2,400,000 |
| DN200 | WBS-200 | PN16 | 3,100,000 – 3,500,000 |
Note:
– The above prices are for reference only and include the standard electrical signal box.
– Actual prices may vary depending on order quantity, flange standards, or special signal requirements (NO/NC, waterproof, explosion-proof, etc.).
– Thép Bảo Tín guarantees genuine products, competitive pricing, and offers high discounts for bulk orders or project purchases.
Reliable Source to Buy ROBO Valves
To ensure you purchase genuine ROBO signal butterfly valves that meet international quality standards, choose reputable suppliers with long-standing experience in water, M&E, and fire protection equipment.
Bao Tin Steel, with over 13 years of experience in industrial valves, fire protection equipment, and steel pipes, maintains large warehouses in Ho Chi Minh City, Bắc Ninh, and Cambodia. They stock various sizes, offer quick quotations, and provide nationwide delivery.
Contact Bao Tin Steel now for fast consultation and pricing!
- Hotline/Zalo: 0932 059 176
- Email: kinhdoanh@thepbaotin.com
Don’t hesitate if you need a high-quality, user-friendly, and reliable product for your system.

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