L404F pressure regulator is a pressure control, limit control, alarm switch product for liquid, gas, steam, etc.
This manual introduces the Yamatake L404F pressure regulator, describing its function, safety warnings, and applicable usage limits. It emphasizes that the device must not be used in applications directly related to personal safety such as aerospace, nuclear, or medical equipment.
Detailed sections cover the regulator’s specifications, electrical ratings, installation procedures, wiring diagrams, adjustment of pressure settings, and routine maintenance checks. The document also lists contact information for Yamatake’s regional offices. This manual is written in Chinese.
| Pressure setting range (L404F200) | 0–100 kPa |
|---|---|
| Minimum pressure (L404F200) | 10 kPa |
| Maximum pressure (L404F200) | 40 kPa |
| Switch actuation pressure (L404F200) | 160 kPa |
| Pressure setting range (L404F204) | 0–350 kPa |
| Minimum pressure (L404F204) | 30 kPa |
| Maximum pressure (L404F204) | 100 kPa |
| Switch actuation pressure (L404F204) | 600 kPa |
| Weight | ≈0.9 kg |
| Electrical supply options | 120VAC, 240VAC, 120VDC, 240VDC |
| Maximum ambient temperature | 65 °C |
The regulator can operate up to a maximum ambient temperature of 65 °C.