Double-diaphragm pump LDM Mova 4000

waterfor chemicalsair-driven

Product information
The Lutz LDM Mova 4000 is an air-operated double-diaphragm pump designed for heavy-duty use in chemical, wastewater and process industries. The housing is available in PE 1000 or stainless steel (V4A / 1.4404) and resists aggressive and abrasive media. The pump handles highly viscous liquids and liquids containing solids and is suitable for continuous operation under demanding conditions.

Air valve and versions
The pump uses a non-icing, self-lubricating air control valve for quiet, efficient and low-maintenance operation. Optionally available ATEX versions allow safe use in potentially explosive atmospheres.

Typical areas of application

• Offshore platforms and marine installations
• Chemical and petrochemical processes
• Wastewater and sludge transfer
• Mineral extraction, drilling and cleaning fluids
• Loading and unloading of concrete mixers
• Industrial processes with abrasive or corrosive media

Your benefits at a glance

• Process reliability: PE 1000 or V4A housing for corrosion and abrasion resistance.
• Variable flow data: Documentation cites up to 900 l/min (test table), up to 1,100 l/min (product text) and up to 1,280 l/min for specific viscous media; actual flow depends on configuration and application.
• Low maintenance: Air valve with only five components for quick service and reduced downtime.
• Oil-free operation: Non-icing air control for clean and energy-efficient use.
• Flexible installation: Suitable for stationary or mobile use, indoor or outdoor.

Technical specifications

• Product number: Mova-4000-PE
• Model family: LDM Mova 4000
• Connection (pump): DN80 ISO (3" ANSI)
• Air connection: G3/4" BSPP
• Max air pressure: 7 bar
• Delivery head (max): 70 m
• Flow rate (referenced values): up to 900 / 1,100 / 1,280 l/min depending on source and configuration
• Operating point: 600 l/min
• Max. solid size: 15 mm
• Max. liquid temperature: 60 °C
• Max. viscosity: 35,000 mPas
• Max. suction height: 9 mWS (wet) / 5 mWS (dry)
• Housing material: PE 1000 (stainless steel V4A / 1.4404 optional)
• Weight: 191 kg
• Dimensions (H x W x L): 435 mm x 815 mm x 725 mm
• Certification: ATEX Directive (2014/34/EU) optional, FDA-compliant
• Release date: 2026-06-11
• Delivery: Delivery time on request
• Note: Maximum flow was measured on a test bench with water at ~20 °C; in-service flow depends on fluid properties, application and pump configuration.