Design and Appearance

The ROBO lever butterfly valve features a compact, sturdy design suitable for water supply, HVAC, and fire protection systems.
- Body: Ductile iron (FCD) with blue epoxy coating for corrosion resistance and durability; ROBO branding embossed for authenticity.
- Lever Handle: Black steel with multi-position lock, enabling quick 1/4-turn open/close for easy flow adjustment.
- Disc: 304 stainless steel, smooth and precisely machined; symmetrical for bi-directional flow.
- Seat: EPDM rubber for tight sealing, leak prevention, and heat/water resistance.
- Connection: Wafer-style with 4 alignment holes for accurate, space-saving installation, easy removal, and maintenance.
Technical Specifications of ROBO Lever Butterfly Valve
The ROBO lever butterfly valve (model WBL) is manufactured according to widely recognized international standards, ensuring compatibility with a variety of piping systems. It is suitable for clean water, wastewater, and mildly corrosive environments.
- Model: WBL (Wafer Butterfly Valve – Hand Lever)
- Brand: ROBO (Vietnam)
- Nominal Size (DN): DN50 – DN150
- Working Pressure: PN10 / PN16 / JIS 10K
- Working Temperature: -10°C to 80°C
- Design Standards: BS 5155, API 609
- Face-to-Face (F2F) Standard: ISO 5752, BS EN 558-1
- Flange Connection Standards: BS4504, DIN2632, JIS B2220, ASME B16.42
- Connection Type: Wafer – clamped between two flanges
- Body Material: Ductile Iron (ASTM A536)
- Disc Material: Stainless Steel 304 (AISI 304)
- Stem Material: Stainless Steel 304
- Seal Material (Seat): EPDM synthetic rubber
- Lever Handle: Carbon steel, electrostatically painted (AISI 1025)
- Colour Options: Blue (B) / Red (R)
Dimensions and Specifications
The following table provides detailed nominal sizes for the ROBO lever butterfly valve, helping you select the most suitable valve for your system:

See the ROBO valve catalogue to see many other ROBO valves that are also being sold at Bao Tin Steel!
Key Advantages of ROBO Lever Butterfly Valve
Although ROBO is a relatively new brand in Vietnam, its lever butterfly valves have received positive feedback from various projects and installations due to their convenience, durability, and reliable performance.
Notable advantages include:
- Quick Operation: Lever handle allows full open/close with just a 1/4 turn, ideal for systems requiring fast actuation.
- Wafer Design: Clamped between two flanges, saving space, simplifying installation, and easing maintenance or replacement.
- Durable Body: Ductile iron body coated with epoxy prevents oxidation and enhances longevity.
- High-Quality Disc and Stem: Stainless steel 304 components resist rust and corrosion in water, humid, or mildly corrosive environments.
- Reliable Sealing: EPDM seat ensures tight sealing, prevents leakage, and minimizes pressure loss. Suitable for PN10/16 and operating temperatures from -10°C to 80°C.
- Versatile Compatibility: Compliant with common flange standards such as JIS, DIN, BS, and ANSI, allowing easy integration with both new and existing piping systems.
- Cost-Effective Local Brand: Manufactured in Vietnam, ROBO offers competitive pricing while maintaining quality comparable to imported brands.
Applications of ROBO Lever Butterfly Valve
Thanks to its simple design, quick operation, and high durability, the ROBO lever butterfly valve is widely used across various industrial and infrastructure systems. Common applications include:
- Water Supply Systems: Installed in pipelines for domestic water, urban clean water networks, water treatment plants, and pumping stations.
- Wastewater Treatment Systems: Suitable for both domestic and industrial wastewater, especially in sedimentation tanks, reaction tanks, or main outlet pipelines.
- Fire Protection Systems (PCCC): Used in buildings, warehouses, and commercial centres.
- Central HVAC Systems: Ideal for air conditioning in residential complexes, office buildings, and high-rise structures.
- Industrial Applications: Employed in food processing, beverage production, light chemical plants, and systems for circulating water treatment.
Reference Price List for ROBO Hand Lever Butterfly Valve [Updated 2025]
The price list below applies to the ROBO hand lever butterfly valve model WBL, with a ductile iron body, stainless steel 304 disc, EPDM gasket, and painted steel lever. Prices may vary depending on materials, connection standards (JIS, BS, ANSI), paint colour, or order quantity.
| Nominal Size (DN) | Reference Price (VND/piece) |
|---|---|
| DN50 | 480,000 – 600,000 |
| DN65 | 580,000 – 720,000 |
| DN80 | 680,000 – 850,000 |
| DN100 | 850,000 – 1,050,000 |
| DN125 | 1,100,000 – 1,300,000 |
| DN150 | 1,350,000 – 1,550,000 |
Note:
Prices above do not include VAT (10%) and shipping fees.
Prices may vary depending on:
- Gasket material (EPDM/NBR/Viton)
- Colour version (blue/red)
- Order quantity (attractive discounts for project orders)
- Certificates (CO/CQ), drawings, catalogues, and test reports are available for projects or bidding documentation.
Where to Buy Genuine ROBO Hand Lever Butterfly Valves – Bao Tin Steel
When selecting industrial valves, especially the ROBO hand lever butterfly valve, choosing a reputable distributor ensures product quality, clear origin, and reasonable pricing.
Bao Tin Steel – with years of experience supplying water system materials and industrial piping – is a trusted official distributor of ROBO valves in Vietnam.
Why choose ROBO valves from Thép Bảo Tín?
- Guaranteed genuine products: All items come with full CO/CQ, clearly showing origin and technical standards.
- Competitive pricing – no intermediaries: Fast quotations, attractive project discounts, maximum support for contractors.
- Expert technical consultation: Guidance to select the right valve type according to operating environment and connection standards.
- Ready stock: Available quickly from DN50 – DN150, multiple colours (blue – red), and various connection standards (JIS, BS, ANSI).
- Nationwide delivery and flexible payment options.
At Bao in Steel, we do more than sell equipment – we accompany your project from consultation to after-sales support.
Contact Bao Tin Steel now for professional advice, price quotations, and technical documents for ROBO hand lever butterfly valves, available quickly and reliably.
- Hotline: 0932 059 176
- Email: kinhdoanh@thepbaotin.com

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