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ZRD

ZRD

Product catalog summary

Overview: The document provides technical specifications and features of rotary valves, specifically the ZRD and ZPD series, used in compounding, extrusion, and materials handling. It includes details on design, performance, and optional accessories.

Specifications: The rotary valves are designed for powders with a pressure range of 1.5 bar and are pressure surge proof up to 10 bar. They are suitable for use in explosive zones (ATEX certified) and feature large inlets and outlets for maximum capacity.

Design Features: Key design elements include quick coupling with extraction device, chamfered blades, rotors with shallow pockets, scraper blades, X-rotor, wear protection, and hygienic versions. The valves also offer chain or direct drive options and a leakage gas collector.

Options and Accessories: Available options include labyrinth rings, purge connections, shaft seals, outboard bearings, and drop-out openings. The valves can be equipped with large inlets and outlets without restriction.

Performance and Dimensions: The document includes performance diagrams for different powder densities and pressure differentials. Dimensions are provided for various models (ZRD 150 to ZPD 800), detailing inlet/outlet sizes, weights, and other critical measurements.

Applications: These rotary valves are suitable for handling powders with specific bulk densities and particle sizes, ensuring efficient material flow and minimal leakage.

Catalog excerpts

>compounding & extrusion >materials handling >service Rotary Valve ZRD. OPTIONS AND ACCESSORIES _ Quick coupling with extraction device _ Wear protection _ Chamfered blades _ Chain drive / direct drive _ Rotor with shallow pockets _ Leakage gas collector _ Scraper blades _ Feeding shoe _ Hygienic version _ X-rotor Cast housing Large inlet without restriction Labyrinth ring Purge connection Shaft seal Outboard bearing Drop out opening D-Rotor, open end, 10 pockets Large outlet Leakage gas Diagram (New, standard clearance 60°C, max. speed) 14 13 ZRD 630 ZRD 550 ZRD 480 ZRD 400 ZRD 320 ZRD 250 12 11 10 [m3/min] Leakage gas rate with product ZRD 700 9 8 7 6 5 30 ZPD 800 28 ZRD 700 26 ZRD 630 24 ZRD 550 22 ZRD 480 20 ZRD 400 18 ZRD 320 16 ZRD 250 14 ZRD 200 12 ZRD 150 10 ZRD 150 4 8 3 6 2 ZRD 200 4 2 1 0 50 100 150 200 Capacity [t/h] Rotor Speed [rpm] Productline components | 2010 250 300 0 0,5 1 Differential Pressure [bar] 1,5 [m3/min] 15 ZPD 800 Leakage gas rate without product Performance Diagram Powder with bulk density 1000 kg/m3 and 0.6 mm < d50 < 1.0 mm, ∆p = 0.8 bar Powder with bulk density 1000 kg/m3 and 0.15 mm < d50 < 0.3 mm, ∆p = 0.8 bar

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