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ASCO™ Series 541 Pneumatic Spool Valves
Series 541 Pneumatic Valve
The ASCO Series 541 is a line of pneumatic spool valves with ISO 5599/1 subbase-mounted bodies and modular assembly.
The highly reliable valves have a service life of 30 million cycles, making them ideal for applications in the packaging, food and beverage, and life science industries. For improved product performance, wider range of options and shorter lead times, select an AVENTICS ISO valve instead.
ASCO™ Series 541 Pneumatic Spool Valves


Valve Actuation
Solenoid - Air Pilot
Pipe / Port Size
1/4 "; 3/8 "
Port Type
4 way - 5/2, 4 way - 5/3
From .86 to 1.73 Kv, From .04 to .2 Kv, From .2 to .43 Kv, From .43 to .86 Kv, From 1.73 to 5.19 Kv, Over 12 kv
Max Differential / Max Operating Pressure
Vacuum to 10.3 Bar, Vacuum to 150 PSIG
Standards / Regulations
ATEX Zone 1-21, ATEX Zone 2-22, IP65, ISO
Operating Environment
Air, Inert Gas


  • Modular assembly with joinable subbases permits easy installation and shorter connection time
  • Wide range of subbases with side or bottom oriented ports for a wide range of applications
  • Compact versions are available for small space requirements
  • Option for ATEX zones 1/21, 2/22
  • Built-in electrical display and protection