Wastewater treatment penstock Passavant®

Penstocks (sealed on 4 sides) Safety and reliability down to the smallest possible detail: Passavant® penstocks are 4-sided sealed shut-off devices suitable for both flow directions and are available from 200x200 mm up to 7000x7000 mm and 5 bar (50 m wc). Unique Features • Maximum safety through static and stress calculation by means of Finite Element-Method • Optimized steel-welded construction, largely maintenance-free • Avoidance of crevice corrosion through constructive prevention and through-welded seams • High loading capacity even with hard and bulky contents in the waste water • Our spindles are rolled, not cut Made of various types of stainless steel that gain durability through pickling and passivation, the Passavant® Penstock regulates the water flow reliably with a tightness according to class 4 (5) DIN 19569 (Table 1). It is equipped with a four-sided seal in both flow directions, fitted with double lips or double bulb seals. The steel-welded edge construction with underfloor and overfloor operation allows all types of drive – from manual to hydraulic. The use of a mother box compensates for misalignments and guarantees smooth running. The penstock is available as a single- or double-spindle version or as a drop-down penstock; in addition, there is a choice between a semi-circular or straight sill. The slide frame can either be doweled to a straight wall or concreted into building recesses. The prerequisite for dowelling is a level and straight shaft wall according to DIN18202. The penstock is designed and manufactured in our factory according to DIN 19569-4.