RB60-80E Intake Valve Control Block VMC 620.015 (No Solenoid)

Technical specifications

Engineer’s tip: “Part 620.015 is specifically the control block housing without a solenoid. If you need a complete assembly with a coil, look for the 620.015E1V03 or 620.015E2V03 (230V solenoid) or 620.015E2V01 (24V solenoid) variants. Before ordering, check with us which version is fitted on your compressor — the housings look nearly identical,” notes Vitalie Boluchevschi, Chief Engineer at Acvatron SRL.

Design features

• Pneumo-mechanical operating principle: the block controls the intake valve flap position via a pressure differential fed through the solenoid (installed separately).
• E execution (open/closed) — discrete control of the compressor’s load/unload state, without continuous modulation (unlike the P and PM executions).
• Standardized mounting for the RB60E/RB80E valve group — fits existing intake valve housings from this line without modification.
• Rated for operating pressure up to 16 bar, matching the standard duty conditions for airends of this size class.
• Allows reuse of a still-working solenoid from the old block when only the mechanical part has failed — a cost-effective replacement option.

Installation guidelines

1. Fully depressurize the receiver and disconnect power to the compressor before disassembly.
2. Unbolt the old control block from the intake valve housing and disconnect the solenoid (if it’s still functional, keep it for reinstallation).
3. Check the condition of the sealing gaskets at the block/valve housing joint and replace if needed.
4. Fit the 620.015 block onto its mounting, tightening the fasteners evenly, crosswise, to the recommended torque.
5. Mount a solenoid of the required voltage (24V or 230V AC) onto the control block and wire it according to the compressor’s electrical diagram.
6. Start the compressor in test mode and confirm the valve responds correctly both under idle and under load.

Compatibility and equivalents

The 620.015 block is used on compressors with RB60E and RB80E screw airends — this line is widely used not only in VMC-branded compressors but also in Remeza equipment and several other manufacturers that fit Italian VMC airends.

⚠️ Part-number mismatch warning: part 620.015 (no suffix) is the control block without a solenoid. The E1V03 / E2V03 suffixed variants are the same block but assembled with a 230V AC solenoid; E2V01 comes with a 24V solenoid. Also, don’t confuse 620.015 with part 620.0140 — a separate control block variant for the same valve series — or with part 620.040, which is the complete intake valve assembly (valve + housing + control block), not just the control block. Confirm your unit’s exact configuration before ordering.

Common installation mistakes

• Ordering 620.015 expecting a solenoid included — the base version ships without one; the solenoid is purchased separately.
• Fitting a solenoid of the wrong voltage (24V instead of 230V AC or vice versa) — mismatch with the compressor’s electrical circuit, risking coil failure.
• Skipping gasket replacement during reinstallation — micro air leaks at the block/valve housing joint.
• Uneven fastener tightening — distorts the block housing and can jam the flap mechanism.
• Installing under system pressure — injury risk and potential unit damage; always depressurize before working on it.

Practical application examples

• Replacing a worn or seized control block on a Remeza compressor fitted with an RB60E/RB80E airend.
• Planned maintenance across a fleet of screw compressors at a production site, where it’s practical to stock universal solenoid-free blocks and complete them per site’s actual line voltage.
• Repairing a compressor station after a mechanical failure of the control block while the solenoid is still working — replacing only the block housing without unnecessary cost.

Expert opinion

“In practice I regularly see confusion between 620.015 and its solenoid-equipped variants — a customer orders a ‘control block for RB60-80E’ expecting a ready-to-install assembly, and receives a housing without a coil. At Acvatron we always confirm with the customer whether a separate solenoid is needed and at what voltage — 24V or 230V AC — this saves time on a repeat order and reduces compressor downtime,” comments Vitalie Boluchevschi, Chief Engineer at Acvatron SRL.

FAQ

Does 620.015 come with a solenoid included? No, the base part 620.015 is the control block without a solenoid. A solenoid of the required voltage is ordered separately.

Does 620.015 fit Remeza compressors? Yes, Remeza compressors fitted with an RB60E/RB80E screw airend use VMC-manufactured valves and control blocks, including 620.015.

What’s the difference between 620.015 and 620.0140? They are different control block variants for the same valve series — we recommend confirming the exact part fitted on your compressor via photo or serial number before ordering.

Can I fit a 24V solenoid on the 620.015 block? Yes, the block’s solenoid mounting is universal — you can install either a 24V or a 230V AC coil, depending on your compressor’s electrical circuit.