What are the differences between the Gas Metering unit and the Gas Mixing unit?
The Gas Metering unit provides independent metering of up to six gas streams with any combination of fuels and/or oxidizers. For example, a single unit may contain five (5) fuels and one (1) oxidizer. Optional external manifolds allow two or more gas channel outputs to be combined for mixing. Whereas, the Gas Mixing unit is internally manifolded for up to four fuel channels and two oxidizer channels. In both the Gas Metering and Mixing systems, a fail-safe purge is provided. The purge stream(s) will open in the event of a power failure or low purge gas pressure. Each channel specified as a fuel in the Gas Metering system includes a passive purge stream that engages when the channel is not active. The Gas Mixing system includes a single software controlled fuel purge with user-settable conditions that must be met before the purge will activate.
