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ZVH

ZVH

Product catalog summary

Overview: The document provides technical specifications and features of the ZVH series rotary valves, designed for handling pellets in compounding and extrusion processes. These valves are suitable for high-pressure applications and are available with various options and accessories to enhance performance and adaptability.

Specifications:

Pressure Range: Up to 3.5 bar (51 psi) for system and differential pressure.
Pressure Surge Proof: Capable of withstanding up to 10 bar (145 psi) due to its heavy-duty design.
ATEX Compliance: Optional usage in Ex-Zones for explosive environments.
Inlet Design: Features a patented anti-chopping inlet geometry for safe operation below a full product column.
Low Leakage: Equipped with a high-pressure rotor featuring 12 pockets and axial seals to minimize leakage.
Performance: High capacity achieved through product flow into vented pockets via housing vent.

Features:

Quick coupling with extraction device for easy maintenance.
Rotor with shallow pockets and optional ZG version for pellet deflection.
Wear protection and high-temperature versions available, supporting up to 250°C.
Heated housing with steam or thermal-oil options.
Chain or direct drive options, with leakage gas hopper and feeding shoe for dilute or dense phase conveying.

Options and Accessories:

High-pressure H-Version with axial seal and 12 pockets.
Axial seal cassette, locking gas, shaft seal, and outboard bearing free of clearance.
Drop out opening and large outlet for enhanced performance.

Performance and Leakage Diagrams: The document includes performance diagrams for PE/PP pellets with a bulk density of 520 kg/m³ and particle size of 3 mm at a differential pressure of 2 bar. Leakage gas diagrams are provided for standard clearance at 60°C and maximum speed.

Dimensions and Weight: Detailed dimensions and approximate weights are provided for various models (ZVH 200 to ZVH 800), with inlet and outlet sizes specified according to DIN and ANSI standards.

Catalog excerpts

>compounding & extrusion >materials handling >service Rotary Valve ZVH. OPTIONS AND ACCESSORIES _ Quick coupling with extraction device _ Heated housing with steam or thermal-oil up to max. 250°C _ Rotor with shallow pockets _ Chain drive / direct drive _ ZG version (pellet deflection) _ Leakage gas hopper _ Wear protection _ Feeding shoe for dilute or dense phase conveying _ High temperature version (T) bis 250°C Anti-chopping inlet geometry for safe starting below full product column Cast housing Axial seal cassette Locking gas Shaft seal Outboard bearing (free of clearance) Drop out opening Large outlet High pressure H-Version with axial seal, 12 pockets Version ZGH Performance Diagram PE/PP pellets with bulk density 520 kg/m3 and particle size 3 mm, ∆p = 2 bar Leakage gas Diagram (New, standard clearance 60°C, max. speed) 22,5 45 ZVH 800 40 Leakage gas rate [m3/min] ZVH 630 ZVH 550 ZVH 480 ZVH 400 ZVH 320 ZVH 250 35 20 ZVH 800 ZVH 630 17,5 ZVH 550 15 30 ZVH 480 25 20 12,5 ZVH 400 ZVH 320 10 ZVH 250 15 7,5 ZVH 200 5 10 2,5 5 ZVH 200 0 50 100 Capacity [t/h] Rotor Speed [rpm] Productline components | 2010 150 0 0.5 1 1.5 2 Differential Pressure [bar] 2.5 3 3.5

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>compounding & extrusion >materials handling >service ROTARY VALVE FOR PELLETS | ZVH PRESSURE RANGE 3.5 bar (51 psi), system and differential pressure PRESSURE SURGE PROOF 10 bar (145 psi), due to heavy duty design ATEX (OPTIONAL) Usable in Ex-Zones INLET FOR PELLETS Anti-chopping inlet geometry (patented) for safe starting below full product column LOW LEAKAGE High pressure rotor with 12 pockets and axial seals PERFORMANCE High capacity due to product flow into vented pockets via housing vent Ø A1 C H/2 Y H 45 ° M Ø G W Ø A2 Inlet*/ Outlet Other dimensions Weight*** appr. kg A1 /A2 (DIN) A1...

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