ITO KOKI AX-30A-0 LPG Separate Type First Stage Automatic Change-over Regulator 30kg/h

The ITO KOKI AX Series regulators are split-type, first-stage automatic switching regulators that require a second-stage regulator to be installed downstream. Each regulator is equipped with two inlets on either side. When the liquefied petroleum gas (LPG) supplied from the service side (indicated by the switching handle) fails to maintain the correct supply pressure, the regulator’s automatic switching function will activate the backup side to supplement the gas supply.

Additionally, the TAX Series regulators feature an interlocked switch with a “red” signal indicator. When the backup side starts supplying gas, this switch sends a signal to the corresponding automatic notification device, indicating that the backup side is in operation and the service side has run out of gas. It is crucial to select a regulator with an appropriate capacity based on the LPG consumption of the equipment.

Standard Specifications

• ‌Model‌: Multiple models available, including (T)AX – 30A – 0, (T)AX – 50 – 0, etc.
• ‌Gas Type‌: Propane, butane, and their mixtures.
• ‌Inlet Connection‌: Varies by model, such as JIS20K 15A flange, etc.
• ‌Outlet Connection‌: Rc1/2, R1, etc.
• ‌Overall Dimensions (W×H)‌: Different for each model; for example, the (T)AX – 30A – 0 measures 250×60mm.
• ‌Inlet Pressure Range‌: 0.10 – 1.56MPa (1.0 – 15.6bar).
• ‌Flow Rate (Propane)‌: Ranges from 30kg/h to 500kg/h, depending on the model.
• ‌Regulating Pressure‌: 0.032 – 0.083MPa (0.32 – 0.83bar).
• ‌Lock-up Pressure‌: 0.095MPa (0.95bar).
• ‌Hydrostatic Test‌: 2.70MPa (27.0bar) on the inlet side, 0.80MPa (8.0bar) on the outlet side.
• ‌Air-tightness Test‌: 1.80MPa (18.0bar) on the inlet side, 0.15MPa (1.5bar) on the outlet side.
• ‌Operating Temperature Range‌: -25 – 60℃ or -5 – 60℃.

Signal Switch Features (Exclusive to TAX Models)

• ‌Actuation Method‌: Pressure detection via diaphragm, permanent magnet, and reed switch.
• ‌Reset Method‌: Manual reset using the switching handle.
• ‌Signal Output‌: Voltage-free a-contact.
• ‌Contact Specifications‌: Maximum switching voltage DC 100V, maximum switching current DC 0.25A, contact resistance <1Ω.
• ‌Lead Wire‌: VCTF 0.5mm²(2C)×100cm.

The signal of models with signal transmission function is self-holding to prevent fluttering. Once the signal shows “red”, it will not revert to “white” unless reset (use the switching handle or lever for resetting).