butterfly valves
butterfly valves
Belven, a Belgian company, has established itself as a reputable producer of butterfly valves over nearly 30 years. Initially serving low-pressure applications, it has expanded into complex sectors like water treatment and district cooling. The introduction of NP Butterfly valves for gas and drinking water marks a significant innovation milestone.
Mission and Strategy
Belven is a family-owned business specializing in quarter-turn valves, aiming for global recognition through geographical expansion. The company prioritizes partnerships with customers, suppliers, and employees to foster innovation and success, focusing on quality and market expansion.
Standards and Certifications
Belven's products meet international standards such as TA LUFT, PED, ADR, WRAS, ANSI, API, BS, DIN, ISO, EN, and MSS. It holds ISO 9001:2000, DVGW, and ATEX certifications.
Product Overview
Belven offers various butterfly valves, including Wafer-Lug Rubberlined, Double Flanged, and High-Performance models, with key products like BV10, BV12, BV13, and BV14 designed for specific applications.
Market and Regions
Belven operates globally, serving markets in construction, process industry, district energy, water treatment, and tank storage, with a strong presence in Europe, the Middle East, and the CIS region.
Technical Specifications
The document details specifications for different valve types, including dimensions, materials, and pressure ratings, along with design standards and operational features.
Conclusion
Belven's focus on innovation, quality, and partnerships positions it as a leader in the butterfly valve industry, emphasizing sustainable growth and customer satisfaction.
This guide categorizes materials based on chemical resistance, using a grading system: A (recommended), B (conditional), C (not recommended), and na (not available). It stresses the importance of considering temperature, pressure, and chemical concentrations when selecting materials.
Material Specifications
- EPDM: Suitable for acids and alkalines, not for petroleum oils. Temperature: -15°C to +120°C.
- NBR: Oil-resistant, suitable for solvents and oils. Not for polar solvents. Temperature: -15°C to 80°C.
- PTFE: Outstanding chemical resistance. Temperature: -10°C to +120°C.
- FKM: Wide chemical compatibility, not for hot water. Temperature: -30°C to +160°C.
- VMQ: Extreme temperature resistance, suitable for food applications. Temperature: -60°C to 180°C.
- TFM: Improved PTFE properties. Temperature: -20°C to +200°C.
Temperature Profile for Seats
Includes a chart indicating temperature tolerances for various seat materials.
Additional Materials
- PFA: Similar to PTFE, used in high-demand applications.
- HALAR: Excellent chemical resistance, unaffected by corrosive chemicals.
Recommendations
Users should evaluate specific process parameters before selecting materials, as the guide provides general advice, not guarantees.
- HALAR Fluoropolymer: Resistant to strong acids and solvents, vulnerable to metallic sodium.
- Nylon (PA11): Excellent corrosion and wear resistance, suitable for food products.
- EPDM: Suitable for water-steam and alkalis, not for hydrocarbons.
- NBR: Suitable for hydrocarbons and oils, not for solvents.
- PTFE: Suitable for solvents, not for alkaline metals.
- FKM: Suitable for acids and oils, not for steam.
- VMQ: Suitable for food applications, not for oils.
- TFM: Suitable for high chemical demands.
- Belven offers valves for various materials and applications, with manual or automated operation options.
- Manual options include levers and gearboxes; pneumatic actuators offer fast operation; electric actuators provide high performance; hydraulic actuators offer safety.
- Accessories include stem extensions and solenoid valves.
- Valves are available in various designs for different applications, emphasizing traceability and innovation.
- Stainless steel is used for corrosive media, cast iron for water treatment.
- Belven has a global partner network and offers local market support, ensuring timely delivery.
- Belven is expanding into markets like the Arabian Peninsula and North Africa, focusing on water and cooling systems.
- Valves should be stored in clean, dry places, protected from UV light.
- Pre-installation cleaning should avoid chemicals.
- Belven Spray MG-66 should be applied to valve seats before installation.
- Specifications for flange connections include dimensions and bolt requirements for various standards.
Catalog excerpts
Let’s move the medium! butterfly valves
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introducing belven As a Belgian producer of buttery valves, Belven has a reputation to keep up with. This is a challenge the company takes with full condence, having a remarkable reputation of nearly 3 decades in valve production. The company started from the local heating and ventilation market with low pressure valves in small diameters and grew gradually into water treatment plants and district cooling plants which demanded more complicated electrical operated large diameter double anged valves, high pressure valves etc. Geert Van Mechelen - Managing Director Belven Recently, the continuous...
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standard codes APPLICABLE STANDARDS (NON LIMITATIVE) ANSI - American National Standards Institute ANSI ANSI ANSI Pipe anges & ange ttings Face-to-face and end-to-end dimensions of valves Large diameter anges, NPS 26 through NPS 60 API - American Petroleum Institute API API API Valve Inspection and Test Buttery Valves : Double Flanged, Lug- and Wafer-type Specication for pipeline valves Part 2 : Specication for pressure testing requirements for general purpose valves Specication for Buttery Valves Part 1 : Specication for production pressure testing requirements DIN - Deutsches Institut für Normung...
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overview products WAFER – LUG RUBBERLINED BV10
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CIS BALTIC BENELUX EUROPE NORTH AMERICA CHINA MIDDLE EAST NORTH AFRICA SOUTH EAST ASIA CENTRAL AMERICA CENTRAL AFRICA SOUTH AMERICA OCEANIA SOUTH AFRICA NORTH AFRICA 4% MIDDLE EAST 22% SOUTH AFRICA 2% SOUTH EAST ASIA 4% FAR EAST 3% butterfly valves
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butterfly valves butterfly valves ■ GOVERNMENT, AUTHORITY & AGENCIES 9% butterfly valves
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luaFer-Lug rubberLined
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ANSI EPDM Gearbox with chain teel 304 – 316 – po ss s lish inle ed Sta s steel 304 – 316 es inl ta Cast Iron tile iron DN 700 - 1200 / NPS 28 - 48 DESIGNED ACCORDING TO U-section Lug body with internally threaded holes DN 40 - 600 / NPS 1 1/2 - 24 DESIGNED ACCORDING TO Valve with lugs with internally threaded holes BODY DISC SEAT FLANGE CONNECTIONS PRESSURE RATING OPERATION
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material BV10 BV10-U BV11 - XX XX X BV12 BV12-U Body Cast iron Ductile iron Cast steel Stainless steel Stainless steel Ductile iron Ductile iron Ductile iron Ductile iron Stainless steel Stainless steel Stainless steel Seat EPDM WHITE EPDM For soft seat valves, NP, code is composed as follows BV10-NP-XXXXX or BV12-NP-XXXXX
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Dimensions in mm ; U/R = Upon Request (*) For this size, the open disc dimension is covered by F/F all dimensions are subject to revision without prior notice 11
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Dimensions in mm ; U/R = Upon Request all dimensions are subject to revision without prior notice 12
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U-section design all dimensions are subject to revision without prior notice
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double flanged DOUBLE FLANGED DIN EN 1092-2 PN 6 PN 10 PN 16 class 150 class 150 series A class 150 series B series 13 series 14 series 20 EN 593 MSS SP67 DN 200 - 2000 / NPS 8 - 80 DESIGNED ACCORDING TO Double anged body DN150 - 1600 / NPS 6 - 64 DESIGNED ACCORDING TO Double anged body (*) For more corresponding F/F standards, kindly check the le on page 27 DISC construction FEATURES SEAT execution concentric eccentric back-up soft resilient disc seal vulcanised on body DOUBLE FLANGED ECCENTRIC DOUBLE FLANGED CONCENTRIC
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steel 304 – 316 – p less olis he d teel 304 ss –3 inles 16 Sta Elec tric Cast steel Ductile iron Cast iron Ductile iron BODY DISC SEAT FLANGE CONNECTIONS PRESSURE RATING OPERATION
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Cast iron Ductile iron GG25 Epoxy coated GGG40 Epoxy coated Ductile iron Stainless steel Stainless steel all dimensions are subject to revision without prior notice 16
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Ductile iron Cast steel Stainless steel Stainless steel Alu - bronze Ductile iron Ductile iron Ductile iron Ductile iron Stainless steel Stainless steel Stainless steel ASTM B148 C95400 GGG40 Epoxy coated GGG40 Nickel plated GGG40 Halar plated GGG40 Nylon plated CF8 CF8M CF8M polished EPDM NBR FKM/FPM WHITE EPDM Dimensions in mm (*) For this size, the open disc dimension is covered by F/F all dimensions are subject to revision without prior notice 17
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luaFer-Lug TFfTl Lined
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steel 316 – polis hed less ain St Ductile iron Hydraulic actuator Electric ectr ic a ctu ato r TYPE BODY DISC SEAT FLANGE CONNECTIONS PRESSURE RATING OPERATION
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EXECUTION TECHNICAL SPECIFICATIONS • Face to face according to DIN 3202/K1 - BS5155 - ISO 5752 - API 609 • Long neck execution • Wafer type with 2 centre holes : Type BV10 • Lug type with threaded holes : Type BV12 • Actuator mounting ange according to ISO 5211 • Mounting between anges DIN PN6/10/16, ANSI 150 • Two piece body in GGG40.3 • Disc and stem in one piece design • Min. 3 mm PFA covering to obtain good corrosion and diffusion resistance • Min. 3 mm TFM liner, vacuumtight • Elastic elastomers obtain gastightness • Wide TFM angesealing area • Leackagefree sealing by constant pressure of...
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all dimensions are subject to revision without prior notice 21
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high performance
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ze bron cast steel Double anged body TYPE BODY DISC SEAT FLANGE CONNECTIONS PRESSURE RATING OPERATION BV13-HP DOUBLE FLANGED HIGH PERFORMANCE
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high performance Besides the resilient seated buttery valves, some industrial processes require other types of buttery valves which offer them the perfect solution in form of high performance valves. Belven’s high performance buttery range adds an extra asset towards the complete buttery range as they cover different temperature and pressure ratings and different ange connections as in its standard range. Field applications for this valve differs from power generation, hydrocarbon processing, water and waste water treatment, marine and commercial shipbuilding, food and beverage processing towards...
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high performance Cast steel Stainless steel Stainless steel Stainless steel Stainless steel Alu -Bronze Stainless steel Stainless steel Stainless steel Stainless steel PTFE RTFE METAL FIRE-SAFE soft seat metal seat re-safe seat
Open the catalog to page 25All Belven nv catalogs and technical brochures
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