Clamp butterfly valves (CBFV) are on/off routing valves designed for manual or automatic operation in sanitary stainless steel fluid handling systems. Easy to install, operate and maintain, the modular hygienic valves deliver more uptime at reduced costs.
The Alfa Laval clamp butterfly valve (CBFV) range meets the full spectrum of requirements at working pressures from full vacuum to 10 bar and at temperatures ranging from -10°C to +95°C. Made of 304L or 316L stainless steel, it has an internal surface finish of Ra ≤ 0.8 μm for hygienic performance and cleanability. The valve comes with EHEDG certification.
Designed for use in a wide range of stainless steel fluid handling systems, these valves are compatible with the Alfa Laval LKB butterfly valves and can be built to comply with virtually any installation standard. The clamp butterfly valve is available in six sizes in respectively DIN (DN25 to DN100) and ISO (1” to 4”).
The clamp butterfly valve features a practical in-line design that ensures reliable and versatile performance. Assembly and installation is easy. Thanks to the patented clamp design, it is possible to retract the seal sideways when the valve is welded into the pipe system. It simply requires a small retraction of the pipes. This makes installation simpler with fewer connections and enables faster seal replacement than conventional butterfly valves.
The CBFV is perfect for applications where frequent maintenance is required. Maintenance is made easy by the counterhold nuts, which make it possible to disassemble the valve using only an Allen key. No spanner is required.
All clamp butterfly valve accessories, such as seals and actuations, are interchangeable with those of the LKB butterfly valve. This reduces the need for a large spare part inventory. The width of the valve clamp end, for instance, is equal to the width of the LKB butterfly valve flange; this enables the same handles and actuators to be used for both valves. Similarly, the E dimension of the CBFV is equal to E dimension on the LKB butterfly valve to ensure that these two valves can use the same disc and upper bushing.
The clamp butterfly valve can be operated either in manual mode or automatic mode. For manual operation, the valve can be complemented with various handles, including a handle capable of a full 360-degree rotation into any position and a multi-position lockable handle for manual operation. Or it can be equipped with an Alfa Laval pneumatic actuator and ThinkTop valve sensing and control unit for automatic operation.
With its 360-degree rotation of the actuator, the clamp butterfly valve has very low space requirements and easily fits into existing stainless steel fluid handling systems, especially those where LKB butterfly valves are already in use. Because the modular CBFV is compatible with the LKB butterfly valve, all seals, discs, bushings, handles and valve sensing and control units are interchangeable.
