
SMC IL220N02 (IL220-N02) - Lock-Up Valve, 3 Port Action, NPT 1/4 Port
SMC IL220N02 Lock-Up Valve — 3 port action (220) with NPT 1/4 ports rather than G or Rc thread. Signal pressure max. 1.0 MPa, Set pressure range 0.14 to 0.7 MPa, Shut-off circuit pressure max. 0.7 MPa, Differential 0.01 MPa, Weight 0.7 kg.
MPN: IL220-N02 · SKU: IL220N02
IL220-N02 Applications
The SMC IL220N02 is the 3 port, NPT-threaded member of the IL201/211/220 lock-up valve family: instead of simply retaining pressure like the single acting IL201, it switches the supply port when a fault occurs. It is installed in air-operated process control lines to protect against air source or supply piping failure, changing over from IN1 to IN2 so the operating area keeps a supply until the main air source is restored. Typical uses are backup air changeover for control valve actuators in refineries, chemical plants and gas processing sites piped to NPT standards.
IL220-N02 Specifications
| Brand | SMC | Manufacturer Part No. | IL220-N02 |
| Product Type | Lock-Up Valve | Series | IL201/211/220 |
| Action | 220 - 3 Port (changes the supply port if a trouble occurs) | Thread Type | NPT (N) - semi-standard |
| Port Size | 1/4 (02) | Accessory | None |
| Suffix | Standard | Signal Pressure | Max. 1.0 MPa |
| Set Pressure Range | 0.14 to 0.7 MPa | Shut-off Pneumatic Circuit Pressure | Max. 0.7 MPa |
| Differential | 0.01 MPa | Ambient and Fluid Temperature | -5 to 60 C |
| Body Material | Aluminum alloy, silver baking finish | Weight | 0.7 kg |
IL220-N02 Datasheet & Manual
Download Datasheet & ManualSMC IL220N02 · PDF · Official SMC documentTrusted by




