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ZVD

ZVD

Product catalog summary

Overview: The document provides technical specifications and features of the ZVD series rotary valves, designed for handling pellets in compounding and extrusion processes. It highlights the valve's capabilities, options, and accessories.

Specifications: The ZVD rotary valves are pressure range rated at 1.5 bar (21 psi) and pressure surge proof up to 10 bar (145 psi). They are suitable for use in explosive zones (ATEX optional) and feature a patented anti-chopping inlet geometry for safe operation.

Design Features: The valves include a quick coupling with an extraction device, a rotor with shallow pockets, and options for wear protection and high-temperature versions up to 250°C. They can be driven by chain or direct drive and include a leakage gas hopper and feeding shoe.

Options and Accessories: The valves offer various options such as shaft seals, outboard bearings, drop-out openings, and anti-chopping inlet geometry. They also feature a large outlet, labyrinth ring, and purge connection.

Performance and Diagrams: The performance diagram indicates the leakage gas rate and differential pressure for PE/PP pellets with a bulk density of 520 kg/m3 and particle size of 3 mm at a differential pressure of 0.8 bar. The leakage gas diagram is based on new, standard clearance at 60°C and maximum speed.

Dimensions and Weight: The document provides detailed dimensions and weights for various models of the ZVD rotary valves, ranging from ZVD 200 to ZVD 800, with specifications for both DIN and ANSI standards.

Catalog excerpts

>compounding & extrusion >materials handling >service Rotary Valve ZVD. OPTIONS AND ACCESSORIES _ Quick coupling with extraction device _ High temperature version (T) up to 250°C _ Rotor with shallow pockets _ Chain drive / direct drive _ ZG version (pellet deflection) _ Leakage gas hopper _ Wear protection _ Feeding shoe Anti-chopping inlet geometry for safe starting below full product column Cast housing Labyrinth ring Purge connection Shaft seal Outboard bearing Drop out opening Large outlet D-Rotor, open end, 10 pockets Performance Diagram PE/PP pellets with bulk density 520 kg/m3 and particle size 3 mm, ∆p = 0.8 bar Leakage gas Diagram (New, standard clearance 60°C, max. speed) 35 ZVD 800 ZVD 800 30 Leakage gas rate [m3/min] ZVD 630 ZVD 550 ZVD 480 ZVD 400 ZVD 320 ZVD 250 ZVD 630 ZVD 550 25 20 ZVD 480 ZVD 400 ZVD 320 15 ZVD 250 ZVD 200 10 5 ZVD 200 0 50 100 Capacity [t/h] Capacity [t/h] Rotor Speed [rpm] Productline components | 2010 150 0 0,5 1 Differential Pressure [bar] 1,5

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>compounding >materials & extrusion handling >service ROTARY VALVE FOR PELLETS | ZVD 1.5 bar (21 psi), system and differential pressure 10 bar (145 psi), due to heavy duty design ATEX (OPTIONAL) Usable in Ex-Zones and flameproof ST2 (protection system) INLET FOR PELLETS Anti-chopping inlet geometry (patented) for safe starting below full product column BODY VENT High filling efficiency by internal leakage gas venting Z (Required clearance with extraction device extended) PRESSURE RANGE PRESSURE SURGE PROOF Ø G W Y H/2 H M 45 ° A1 A2 U C Shown without drive Drive with parallel helical gear motor...

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