How Valve Systems Provide Optimal Flow Control and Precise Dosing

Related Vendors

Glatt Ingenieurtechnik GmbH

Italvacuum, Srl

Anton Paar GmbH

EBRO ARMATUREN Gebr.Bröer GmbH

Pneumatic and electric actuators have been developed in–house for many years now and adapted for energy–efficient use with company–manufactured valves. Options from position feedback systems and entire control components through to complete networks now form an integral part of the product range. As a result of handling specific application certification procedures and providing full service documentation of all components, Ebro has established a reputation as a global system supplier with all–round capacity, including after–sales service. Also, Ebro has developed additional expertise in bulk materials in particular, offering many special features for particular applications.

Sealing Valves for Abrasive Media

The company's Inflas sealing system was specially developed for valves used with heavily abrasive or highly sensitive substances. The liner is pneumatically pressed onto the valve disc in closed position, which allows it to compensate for any abrasion–related leakage. Once the valve opens, the sealing relaxes and opens an initially narrow slit between liner and valve plate. Friction is greatly reduced in the process and only minimal torque is required to open the disc.

Once the valve closes, the integrated control mechanism performs a validity check within fractions of a second and assumes control of the process, moving the valve disc into the “closed” position. Due to the fact that the annular gap is still open at this point, no abrasive substances are pressed into the sealing liner and no sensitive product is crushed. Only once the media has stopped flowing altogether , the linew will gently press up against the valve disc.

A Perfect Match for Pressurised Systems

Inflas is particularly recommended for use in pressurised systems, as pressure impacts can make even the smallest crevices expand into harmful channels. Inflas is available for all soft-sealing Ebro butterfly valves with interchangeable liner, in nominal widths of DN 80 to DN 600. Cycle control is performed either by the host control or the adaptable micro controls, which Ebro produces specificially for the valves. Thus, Inflas valves can be retrofitted to existing plants without making any change to the relevant PLC. The initial signal is given by the run command of the existing valve. The usual positional response is preserved. On request, an electronically or optically detected error signal can be provided to significantly improve the amount of preventative maintenance required.

Valves for System Pipes

Over the past few years, a steady trend towards system pipes in pipeline construction has been discernible. For both new systems as well as existing facilities, welded pipelines are being replaced by modular piping elements joined with clamping rings, saving time and simplifying the assembly process. The risk of fire is reduced and expensive welding specialists are no longer needed for the adjustments. Ebro has been addressing this trend now for many years. CK butterfly valves have clamp ring connections on the flange side that allow the valves to be built into the piping systems. This completely eliminates the need for any DIN flange or accompanying bolts.

(ID:42510533)