Mobile Vaporizer 150 MCFH 450 PSIG Gas Fired Water bath super heater tube skid

What utilities and footprint does this unit need on site?

This unit requires 480V three-phase power at 5 amps (4.2 kW) and a natural gas or propane supply for the water bath burner. Being trailer-mounted, it needs clearance for a standard flatbed trailer plus access for gas and electrical hookups. Water bath vaporizers typically require makeup water access and a drain for blowdown, though this listing does not specify the bath capacity or water connection sizes.

When does a water bath unit make more sense than ambient or electric?

Water bath vaporizers maintain consistent output regardless of ambient temperature, making them the standard choice where cold weather would derate finned ambient units or where continuous duty cycles prevent frost recovery. Gas-fired baths generally cost less to operate than electric resistance heaters in regions with low gas prices, and they provide superheat where downstream processes require gas temperatures well above saturation. Ambient units work well for intermittent loads in temperate climates, while electric vaporizers suit indoor installations or sites where combustion equipment permitting is prohibitive.

What maintenance does the bath and heat source require?

Water bath vaporizers require periodic inspection and cleaning of the burner assembly, flame sensors, and combustion chamber, plus water treatment to prevent scale buildup on the process tube. Most operators drain and inspect the bath annually, checking for corrosion and verifying water level controls and temperature sensors. The tubeside requires pressure testing per jurisdiction, typically every five to ten years depending on code, and external insulation should be inspected for damage that would increase frost formation or fuel consumption.

What should I inspect on a used water bath vaporizer before buying?

Verify the process tube ASME U-stamp and request the most recent hydrostatic test report showing compliance at 450 PSIG MAWP and -320°F MDMT as stated. Inspect the bath for corrosion, leaks, and condition of the heating coils or fire tube, and verify all burner components, controls, and safety shutoffs are present and functional. Check the trailer frame, axles, tires, and lighting for roadworthiness if the unit will be relocated, and confirm the control panel functions including ignition sequencing, temperature control, and high-limit safeties.