Conical / startup sieves of type W-HS are used during the commissioning of a system to clean a closed system once.

These consist of a stainless steel strainer insert (W-HS-S) provided as a clamp solution between DIN/ANSI flanges of the housing (W-HS-G).

Nominal sizes from DN 50 / 2″ to DN 600 / 24″ with various mesh widths are available in standard lengths according to EN 558-1.
Special lengths and additional accessories, such as differential pressure measurement, are available upon request.