Integrated internal pilot air supply channel, pneumatic interface specification is G1/4, suitable for ISO 8573-1:2010 (7:4:4) standard compressed air, compatible with oil lubrication operation. Operating environment temperature range - 5 ℃ to 50 ℃, can adapt to most industrial temperature zones, and meet VDMA 24364-B1/B2-L oil mist compliance requirements, providing reliable installation support and gas circuit integration solutions for valve island systems.