SYJA500/700 series are pneumatic solenoid valves from Japan SMC. They have direct pipe connection type and bottom pipe connection type. They can be equipped with M3 and M5 ports. They can be used for normally open and normally closed applications. The working pressure range is 0.15~0.7MPa, and the actuation pressure range is (0.4×P+0.1)~0.7MPa.
The document provides the model designation method for the SYJA300 series, showing how each model number encodes pipe connection type and size. It includes dimension drawings in millimetres for both direct‑pipe and base‑plate versions.
Technical specifications are listed for each model, such as operating pressure range, pipe size (e.g., M3×0.5), and effective flow area. The manual also notes that the SYJA500 and SYJA700 series replace earlier VJA models with identical dimensions. This manual is written in Chinese.
| Operating pressure range (SYJA3口2) | 0.15‑0.7 MPa |
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The SYJA3口2 model operates within a pressure range of 0.15 to 0.7 MPa.