Butterfly Valve Double
Products Description
Butterfly Valve – Double Flanged, Rubber Lined
The NEWLOTOKE double flanged rubber-lined butterfly valve is a high-performance valve designed for versatile use in industrial fluid control systems. With a concentric disc design and durable bonded rubber lining, this valve delivers excellent flow control, sealing performance, and long-term reliability. Engineered with a short pattern face-to-face double flanged body, it supports end-of-line duty and fits a wide range of international flange standards, making it ideal for global industrial applications.
Product Specifications
| Item | Specification |
|---|---|
| Valve Type | Centric, Double Flanged, Short Pattern |
| Nominal Size | DN 50 – DN 1400 / NPS 2" – 56" |
| Nominal Pressure | PN 6 / 10 / 16 (Up to 20 bar for DN ≤ 600) |
| Temperature Range | -20°C ~ +200°C (Depending on liner material) |
| Flow Velocity Limit | 5 m/s (liquids), 50 m/s (gases) |
| Sealing Type | Bi-directional, ISO 5208 Leakage Rate A |
| Lining | Bonded rubber, corrosion & wear resistant |
| Shaft Seal | O-ring with bushing, low emission design |
| Installation | Suitable for end-of-line installation |
| Media | Water, wastewater, air, oil, light corrosive fluids |
Applicable Standards
| Category | Standard |
|---|---|
| Flange Standards | EN 1092 PN6/10/16; ASME B16.5 Class 150; AWWA C207 B/D/E; BS10 Table D/E |
| Face-to-Face | EN 558-1 Series 13; ISO 5752 Series 13 |
| Design Standards | EN 593; API 609 |
| Testing Standards | EN 12266-1/2; ISO 5208; API 598 |
| Pressure Test | Shell: 1.5×PN, Sealing: 1.1×PN |
| Marking | EN 19; MSS SP 25 |
| Material Certificate | EN 10204 - 2.2 / 3.1 / 3.2 (optional) |
| Anti-static Option | Available (EN 736-3 / API 609) |
Product Advantages & Features
1,Double flanged body design, ideal for end-of-line service
2,Bonded rubber liner for enhanced corrosion resistance
3,Reliable bi-directional sealing with zero leakage
4,Compatible with multiple international standards
5,Space-saving short face-to-face structure
6,Disc position indicator integrated on driving shaft
Why choose us?
Used at the project site
Join Us as Our Valve Distributor
NEWLOTOKE is a manufacturing enterprise specializing in the research, development and production of valves, we welcome global partners to join us to develop the market and create the future together!
✅ Factory direct supply, reliable quality
Professional valve manufacturing, stable quality, complete certification.
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✅ Technical support, supporting materials
Provide product information, technical support and promotional materials to help sales.
FAQ
Q1: What is a butterfly valve double flanged used for?
A: This valve is commonly used for on/off or flow control of liquids and gases in pipelines, especially where secure flange connections and end-of-line service are required.
About International Trade & Cooperation
Q2: Can NEWLOTOKE export butterfly valves worldwide?
A: Yes, we support global trade and have experience working with clients in Europe, the Middle East, Asia, and the Americas. All valves comply with international standards.
Q3: Does NEWLOTOKE provide necessary certifications for export and installation?
A: Absolutely. We provide EN 10204 2.2 / 3.1 / 3.2 certification, along with testing reports according to API, EN, and ISO standards.
Q4: Can I become an agent or distributor for NEWLOTOKE in my country?
A: Yes, we welcome global partnerships. If you're interested in distributing our valves, please contact us to discuss exclusive representation in your region.
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