What maintenance is required for the VFR+L compressed air preparation unit, SKILLAIRÂ® series, and how often should filter elements and lubricant be checked or replaced?

The VFR+L compressed air preparation unit, SKILLAIRÂ® series requires regular inspection and basic maintenance to ensure reliable filtration, pressure regulation and lubrication. Recommended tasks and intervals: - Daily/weekly: visually check for external damage, leaks and correct pressure reading; ensure shut-off valve operates and vents system when closed. - Weekly/monthly: check condensate drain and empty manual drains or verify semiâautomatic (RMSA) function. - Monthly (or sooner under heavy use/contaminated air): inspect filter bowl for dirt and water accumulation; drain and clean as needed. - Every 3â6 months (dependant on operating conditions): check filter element condition and replace if heavily soiled or damaged. Given the 20 Âµm filtration rating, replace elements more frequently in dusty or wet environments. - Monthly/quarterly: check lubricator oil level and top up to maintain visible oil mist; adjust feed rate if necessary. Replace lubricating oil and inspect the lubricator unit at least every 3â6 months or per oil manufacturer recommendations. - Annually: perform complete functional check of shutâoff valve, pressure reducing valve and overall unit; replace filter element and service lubricator if not done earlier. Adjust intervals based on operating hours, compressor oil carryover, ambient conditions and manufacturer recommendations; in harsh conditions shorten inspection and replacement intervals.

How does the VFR+L compressed air preparation unit, SKILLAIRÂ® series, handle condensate drainage and what options are available?

The VFR+L compressed air preparation unit, SKILLAIRÂ® series manages condensate drainage via a condensate drain integrated into the filter bowl. Two drain options are available: manual drain and semi-automatic (RMSA). The manual drain requires user operation to release accumulated condensate; the semi-automatic RMSA reduces manual intervention by periodically discharging condensate automatically while preventing air loss. Drain choice depends on installation size (100, 200, 300) and operational preferences.

Can the VFR+L compressed air preparation unit, SKILLAIRÂ® series, operate reliably at temperatures above +50Â°C?

No. The VFR+L compressed air preparation unit, SKILLAIRÂ® series is specified for an operating temperature up to +50Â°C. Reliable operation above +50Â°C is not guaranteed by the manufacturerâs stated limits; using it at higher temperatures may impair performance, reduce component life, or void warranties. For applications above +50Â°C, consult the manufacturer for suitable alternatives or special high-temperature versions.

VFR+L compressed air preparation unit, SKILLAIR® series

Air preparation elements (FRL), All products/

Additional information

Maximum operating temperature [°C]	50

The VFR + L series SKILLAIR® set with a high degree of reliability consists of a shut-off valve, air filter, pressure reducing valve, and lubricator. The purpose of the set is to purify the air supplied by the compressor, reduce and maintain a stable set pressure during fluctuations in supply pressure, and lubricate with an oil mist. The function of the shut-off valve is to separate the working system from the supply air, which occurs in the closed position, simultaneously venting the system. Size: 100, 200, 300. Supply pressure: up to 15 bar, depending on the size. Output pressure range: 0÷8, 0÷12 bar. Filtration degree: 20 µm. Connection: BSP 1/4″ to 1″. Condensate drain: manual / semi-automatic (RMSA). Operating temperature: up to +50°C. Nominal flow: from 800 to 4000 l/min (at an inlet pressure of 6 bar Δp = 1 bar), depending on the size.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
MW-3272008	VFR+L Set 100 1/4 20 08 RMSA (SKILLAIR)	-	-	In stock	Enquiry
MW-3272011	VFR+L Set 100 1/4 20 012 RMSA (SKILLAIR)	-	-	In stock	Enquiry
MW-3372008	VFR+L Set 100 3/8 20 08 RMSA (SKILLAIR)	-	-	In stock	Enquiry
MW-3372011	VFR+L Set 100 3/8 20 012 RMSA (SKILLAIR)	-	-	In stock	Enquiry
MW-3472008	VFR+L Set 200 1/4 20 08 RMSA (SKILLAIR)	-	-	In stock	Enquiry
MW-3472011	VFR+L Set 200 1/4 20 012 RMSA (SKILLAIR)	-	-	In stock	Enquiry
MW-3572008	VFR+L Set 200 3/8 20 08 RMSA (SKILLAIR)	-	-	In stock	Enquiry
MW-3572011	VFR+L Set 200 3/8 20 012 RMSA (SKILLAIR)	-	-	In stock	Enquiry
MW-3672008	VFR+L Set 200 1/2 20 08 RMSA (SKILLAIR)	-	-	In stock	Enquiry
MW-3672011	VFR+L Set 200 1/2 20 012 RMSA (SKILLAIR)	-	-	In stock	Enquiry
MW-4472005	VFR+L 300 1/2 20 08 RMSA (SKILLAIR)	-	-	In stock	Enquiry
MW-4472008	VFR+L 300 1/2 20 012 RMSA (SKILLAIR)	-	-	In stock	Enquiry
MW-4572005	VFR+L 300 3/4 20 08 RMSA (SKILLAIR)	-	-	In stock	Enquiry
MW-4572008	VFR+L 300 3/4 20 012 RMSA (SKILLAIR)	-	-	In stock	Enquiry
MW-4672005	VFR+L 300 1 20 08 RMSA (SKILLAIR)	-	-	In stock	Enquiry
MW-4672008	VFR+L 300 1 20 012 RMSA (SKILLAIR)	-	-	In stock	Enquiry

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The VFR + L series SKILLAIR® set with a high degree of reliability consists of a shut-off valve, air filter, pressure reducing valve, and lubricator. The purpose of the set is to purify the air supplied by the compressor, reduce and maintain a stable set pressure during fluctuations in supply pressure, and lubricate with an oil mist. The function of the shut-off valve is to separate the working system from the supply air, which occurs in the closed position, simultaneously venting the system. Size: 100, 200, 300. Supply pressure: up to 15 bar, depending on the size. Output pressure range: 0÷8, 0÷12 bar. Filtration degree: 20 µm. Connection: BSP 1/4″ to 1″. Condensate drain: manual / semi-automatic (RMSA). Operating temperature: up to +50°C. Nominal flow: from 800 to 4000 l/min (at an inlet pressure of 6 bar Δp = 1 bar), depending on the size.