GERMANY – Siemens is launching a new line of servomotors, designed for the clean condition requirements of the food, beverage, sterile packaging, pharmaceutical, and other process industries.
The SIMOTICS S-1FS2 servomotors are available in a range of power ratings, from 0.45–2kW (0.60–2.68 hp) with torque from 3.1–14 Nm (2.28–10.32 ft-lbs.).
Made with housings of 1.4404 (AISI 316/316L) stainless steel, EPDM seals, and bearing grease with NSF H1 approval, the company said the new servomotors are resistant to corrosion and acidic chemicals found in the process industries.
This degree of protection is in accordance with IP66/67 standards on the entire motor, with IP69k (30-bar) protection provided on the motor housing.
The servomotors also feature high dynamics due to low inherent inertia plus high overload capacity for use in pick-and-place applications, as well as the precise movement of heavy loads.
Siemens says that the SIMOTICS S-1FS2 family of motors is suitable for clean-in-place (CIP) processes and for use with all commercially available cleaning agents used with washdown motors.
The motors are especially designed for the 3-A (U.S.) and EHEDG (Euro) requirements of the food and beverage industries.
Bürkert’s new fluid control valves
Meanwhile, German-based manufacturer of measurement and control systems, Bürkert has introduced durable and low-maintenance on/off and control valves for switching and controlling gases, liquids and steam in food processing.
According to the company, the control valves are suitable for media pressures of up to 25 bar and temperatures up to 230°C.
Thanks to special sealing materials, the valves with stainless steel valve bodies work without any problems with media of up to 25 bar gauge pressure and temperatures between -40°C and 230°C.
The rated service life at 200°C is more than 1m switching cycles, extending its use and reducing the need for replacements.
Sealing materials and lubricants suitable for foodstuffs, drinking water, fuel gases, or oxygen allow the valves to be used with other media, for example for cleaning and flushing purposes, for heat carriers, or saturated steam at 20 bar and 215°C.
This means they can be used to switch and control all common gases and liquids for heating and cooling purposes in the specific process as well as in traditional CIP processes. They can also be used with heat transfer oils e.g. in conjunction with alternative heating concepts.
The high-pressure and high-temperature valves are available in different versions with straight-seat on/off and control valves as well as with angle seat on/off and control variants.
Depending on the version, the stainless-steel bodies offer flange, weld, thread or clamp connections in DNs from DN10 to 100 or NPS 3/8” to 4”.
Bürkert says the design details take into account the special requirements of the areas of application. Swivel plates, for example, increase seat tightness while optimized wipers extend the service life of the self-adjusting packing.
Additionally, different plug and seat sets in metallic or soft-sealing variants allow an exact adaptation to the receptive operating medium.
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