Variable-Speed (VSD) Rotary Screw Maintenance Kits & Parts

VSD rotary screw maintenance here includes Schulz SRP Flex kits, EL-AV EL+ INV service kits, auto transformers, and VFD reactor and EMI/RFI filter packages.

Flex is Schulz's variable-speed screw designation. EL-AV INV model numbers identify inverter versions. The EL-AV service kits distinguish 2000-hour and 4000-hour listings; electrical accessories name their compressor models separately. Schulz FMK titles identify specific Flex models, including SRP 4075, 4100 and 4125.

Browse all rotary screw maintenance or compare Schulz fixed-speed screw kits.

Contact us with your compressor nameplate, model and serial number and we will confirm the part before you order.

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EL-AV
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EL-AV
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EL-AV