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SBE Butterfly Valve – Elastomer Seated

For highly corrosive or abrasive liquids

SBE Butterfly Valves are well established elastomer-sealing process valves used in a wide range of applications in such diverse industries as chemical, petrochemical, pharmaceutical, pulp and paper, mining, and associated fields. The combination of EPDM (liner) and encapsulated disc (PFA) is perfectly suited for low-concentration acids and lyes containing solids. They are suitable for installation in piping systems in accordance with DIN PN10/16 or ANSI 150lbs, fitting flanges per EN 1092 or ASME B16.5. Face-to-face dimensions are in accordance with EN 558-1 row 20, as well as ASME B16.10.

SBE bodies are available in wafer-style, with integrated centering lugs, or in lug-style with threaded bolt holes. Depending on the application the 2-part bodies can be made from epoxy-coated ASTM A216 WCB cast steel (1.0619), from CF-8M (AISI 316SS) Stainless Steel (1.4408). Integrated ISO 5211 mounting flanges allow direct mounting of 90° actuators. A key feature of SBE Butterfly Valves is the slim profile, bubble-tight 1-piece disc-stem assembly, which maximizes flow capacity and offers polished sealing surfaces for leak-proof performance. Disc cores are made from ASTM A240 Duplex SS (1.4462), and the thoroughly anchored encapsulation guarantees the required bonding strength for vacuum applications.

Customers benefit greatly from the extended life span and hysteresis-free characteristics of Swissfluid Butterfly Valves during control applications. Liners with wide sealing grooves eliminate the need for additional gasketing by the end-user. Replacement of our liners is easily accomplished in the field.

Body liners made from highly stable materials such as EPDM, white EPDM, NBR, FPM (Viton), VMQ (Silicone), or SBR are readily available. The disc can be encapsulated with PFA, PFA-AS (anti-static), PVDF or ETFE. Discs can also be furnished in solid one-piece construction from 1.4462 Duplex SS, welded 316L SS, grade 2 Titanium, Hastelloy C or special alloys. The notched stem with the rated breaking point outside the valve is an important additional safety feature for environmental protection. Proper safety factors always have to be considered for pneumatic or electric actuator applications.

Features such as high-strength body halves connections, O-ring shaped sealing lip and the dynamic maintenance-free shaft sealing grant an excellent performance along the entire life span.
EN 12266-1 and API 598 – required tightness is met across the entire pressure and temperature range of 1 mbar to 16 bar (0.01psia – 232psi). -40°C to 230°C (-40°F to +446°F) depending on nominal size as well as choice of liner material and disc encapsulation.

Highly corrosive or abrasive and even toxic liquids, vapors or poisonous gases constantly challenge the quality, functionality and safety of specified butterfly valves.

Main Features

- Large selection of different materials and trims
- Blow-out proof one-piece disc/stem assembly
- Flow-optimized disc for high cv values
- Disc features a rated breaking-point outside the atmospheric seal
- Hysteresis free throttling characteristic
- Easy installation and maintenance due to split body design
- ISO mounting flange for direct automation

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SwissFluid

Quality without compromise

Swissfluid was founded in 2002. Swissfluid have focussed on their core competence of the development, production and worldwide marketing of lined valves and sampling systems for highly corrosive as well as abrasive applications.

Swissfluid AG in Lenzburg, Switzerland covers an area of over 5000m² (50,000 ft²) of manufacturing, assembly, testing, inventory and office space. Their large inventory of raw materials at the plant in Switzerland keeps manufacturing times to a minimum. Closely following customer specifications, valves are assembled and tested at the facility in Switzerland.

Having production and administration under one roof guarantees quick and flexible handling of worldwide inquiries and orders.

Swissfluid AG is an established and reputable manufacturer of fully lined valves with tremendous personnel experiences in the design, manufacturing and marketing of a comprehensive line of industrial valves and pipeline systems.

Swissfluid’s core business is in the lining of valves and pipeline components with engineered plastics, such as PTFE, PFA, PVDF etc. as well as high performance elastomers. Its comprehensive range of products include Diaphragm valves, Butterfly valves (plastomeric & elastomeric), Ball Valves, Sampling Systems as well as Sight Glasses, Ball- & Swing Check valves, Cylindrical valves, Inline Sampling valves, Sampling Ball valves & Reactor Sampling Systems as well as pneumatic Actuators with Accessories.

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