Intake Valves

Assembled on the inlet port of an air-end housing, the intake valves of the RB & RBC series are Normally Closed. They include a butterfly operated by a servo-cylinder controlling the air flow-rate and accordingly, the working pressure, a check valve preventing backflow of oil at a compressor shutdown and a blow-down valve setting up the discharge time upon request.
A wide range of versions of RB & RBC intake valves is available: E (ON-OFF working system for stationary machines), PM (totally pneumatic working system for portable machines), P (hybrid working system for stationary and portable machines), NR (only with a check valve). They are available at different voltages, if requested, as well as with connection flanges and certifications.
These valves have to be connected pneumatically to the separator tank and electrically (in case of E & P version) to the pressure switch.

The RB & RBC Series are also available for Natural Gas and Water Lubricated applications.

The wear-and-tear of valve components depends on compressor applications and operating parameters. Valve inspection and ordinary maintenance are recommended using VMC’s original spare parts kits whose instructions are indicated in the maintenance and trouble-shooting document.

Assembled on the inlet port of an air-end housing, the intake valves of the RH & RHC Series are Normally Open (NO) and only with a vertical design. They include a poppet operated by an internal piston controlling the air flow-rate and accordingly, the working pressure, a check valve preventing backflow of oil at a compressor shutdown and a blow-down valve setting up the discharge time upon request. A wide range of versions of RH & RHC intake valves is available: E (ON-OFF working system for stationary machines), PM (totally pneumatic working system for portable machines), P (hybrid working system for stationary and portable machines), NR (only with a check valve). They are available at different voltages, if requested, as well as with connection flanges and certifications.
These valves have to be connected pneumatically to the separator tank and, where requested, electrically (in case of E & P version) to the pressure switch.
The RH & RHC Series are also available for Natural Gas and Water Lubricated applications.

Wear-and-tear of valve parts depends on compressor applications and operating parameters. Replacement of worn parts should take place after 8.000 operating hours using VMC's original spare parts kits.