Phosphate coating - Import export

Disc Springs are conically-shaped precision components designed to be axially loaded. Disc Springs are often incorrectly referred to as belleville disc springs, belleville springs, belleville washers or simply conical washers. SPIROL offers the full range of DIN EN 16983 (formerly DIN 2093) Group 1 and 2 Disc Springs in Series A, B, and C. In addition to the DIN specified sizes, SPIROL stocks its own standard sizes with outside diameters ranging from Ø8mm to Ø200mm. SPIROL Standard Disc Springs were designed around the standardized calculations of DIN EN 16984 (formerly DIN 2092), and meet all material, dimensional tolerance, and quality specifications as laid out in DIN EN 16983 (formerly DIN 2093) yet offer an expansion in the diameter and thickness combinations that are not included in the DIN standard. Standard materials include carbon steel and alloy steel, both finished with a protective coating of zinc phosphate and oil.

In the tried-and-tested, gasketed design, the EC-series offers many benefits to the user on top of its ease of operation. Due to the internal drainage, use in even the most hygienically clean areas is possible. The press lock is performed by an automatically self-regulating pneumatic/hydraulic closing system. The automatic closing pressure maintenance ensures that the plate pack always remains closed. An adjustable pressure switch with a potential-free contact is provided for integration into the customer's control system. This prevents the feeding pump from running uncontrollably. Also, as with all AQUACHEM filter presses, the discharge manifold can be generated here at the customer's request. Due to the gasketed design, the seamless backflushing of the filter media in the filter press is possible. The filter press frame is phosphated and powder-coated, offering a high level of protection against external influences.