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Steady-Mix: steady mixing instead of filling in bursts

14 October 20263 min readGasyco GmbH
Steady-Mix: steady mixing instead of filling in bursts
Steady-Mix: steady mixing instead of filling in bursts

Steady-Mix is the intelligent buffer tank filling for Gasyco gas mixers. It continuously adjusts the mixing output to your actual gas consumption. And the mixer stays ready for operation, even when the gas supply runs short.

Where conventional filling reaches its limits

The tank drops to the switch-on pressure, the mixer runs at a fixed output up to the switch-off pressure and stops. That means many starts, and every start is a settling phase in which the composition can fluctuate. The controllers often operate far from their ideal operating point, and the gas supply is loaded in bursts with high peaks.

Diagram of conventional filling: flow pulses on/off, the mixture overshoots at every start, the supply shows a pressure peak at every start.
Conventional on/off filling: every start brings a settling phase and a load peak in the supply.

The principle: mixing output follows demand

Steady-Mix recognises how much gas you really need and sets the mixing output so that the tank is filled slowly but surely. The mixer runs long and steadily, ideally continuously.

Fewer starts mean fewer settling phases – and therefore a more consistent mixture.

Diagram of Steady-Mix: flow rises once and then follows consumption, the mixture stays constant at the setpoint, the supply stays even.
Steady-Mix: one start-up, after which the flow follows consumption – mixture and supply stay calm.

Mixing exactly as much as you need right now

  • Consumption-led mixing output: Current consumption is estimated continuously and the mixing output follows it. If withdrawal rises, Steady-Mix follows; if it falls, Steady-Mix reduces the output.
  • Gets to know your system: Steady-Mix approximates the actual volume of the buffer tank and connected pipework itself during operation. The tank size entered once serves as a starting aid and fallback value.
  • Fast response to load peaks: If the tank pressure falls despite ongoing filling, Steady-Mix increases the mixing output immediately – targeted to actual demand rather than simply to maximum.
  • Always within the control range: The limits follow automatically from the recipe and the controllers fitted. No controller is driven below its minimum controllable flow or above its maximum – mixing accuracy is maintained across the entire output range.

Staying ready for operation, even when the gas supply runs short

  1. Early warning: Steady-Mix monitors the supply pressure of every gas line involved. If the pressure reserve runs low, a warning appears. The mixer keeps running as long as it can hold the mixture reliably – and you know in good time that, for example, a cylinder bundle will soon need changing.
  2. Controlled stop instead of lockout: If the supply pressure is no longer sufficient, Steady-Mix ends the filling itself before a controller leaves its control range and an incorrect mixture can occur. No hard shutdown, no manual intervention on site. The message shows which gas line is affected.
  3. Standby mode: If the supply pressure is too low, the controllers receive no setpoint and no gas flows. The inlet valves open briefly at intervals to check the line pressure – the coils stay cool. When the pressure returns, for example after a bundle change, the mixer resumes operation by itself.
  4. Automatic restart: As soon as conditions are right again, filling restarts quite normally. An integrated restart lock prevents constant switching on and off at the limit.

Every state – normal operation, early warning, filling ended, standby, restart – is clearly shown on the operator panel. You can see at any time what the mixer is doing and why.

Your benefits

  • More constant gas composition thanks to fewer start-ups
  • Higher availability – no downtime requiring manual intervention when supply is short
  • Fewer service call-outs – the mixer recovers by itself after a fault
  • Less wear on controllers and valves thanks to fewer switching operations
  • Relieved gas supply – even withdrawal instead of high peaks
  • Simple commissioning – enter the tank size as a starting value, Steady-Mix learns the rest by itself
  • Clear messages show what is going on and where

Technical data

FeatureVersion
Mixing outputautomatic, consumption-led
Tank volumeapproximated automatically incl. pipework, starting value on the operator panel
Switching pressuresadjustable on the operator panel
Supply pressure monitoringper gas line
In case of undersupplywarning · controlled stop · standby · automatic restart
Redundant operationsupported
Availabilityfor new systems; retrofit as a software update for a one-off fee or as part of the Connect Plus subscription
Steady-Mix – technical data

New or as a retrofit

Steady-Mix is available for new gas mixers. Existing gas mixers can be retrofitted via a software update for a one-off fee – or as part of the Connect Plus subscription. We would be happy to show you what Steady-Mix can do in your system: office@gasyco.com.