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Cleanroom Utility Systems
Clean Steam Generator
A horizontal unfired generator that uses plant steam in a removable U-tube bundle to produce clean steam from separately treated feed water.
- Indirect steam-to-steam separation
- Serviceable horizontal U-tube bundle
- Automated pressure and level control
Product Introduction
The Clean Steam Generator keeps the plant-steam circuit physically separate from the secondary water and clean-steam space. Primary steam condenses inside a removable U-tube bundle, transferring heat into RO, demineralized or otherwise suitably treated feed water held in the horizontal generator vessel. A level transmitter regulates make-up water while clean-steam pressure modulates primary heat input, allowing the packaged unit to follow process demand without introducing boiler-water treatment chemicals into the secondary steam path.
Key Features
Horizontal 316L secondary vessel
Removable U-tube heating bundle
Modulating primary-steam control
Continuous secondary-water level sensing
Dedicated clean-steam safety valve
Automatic blowdown interface
Touchscreen alarms and remote signals
Customer Product Concerns
A clean-steam package must isolate boiler additives, control secondary-water inventory and remain serviceable while responding to changing sterilizer or direct-contact process demand.
Plant-steam treatment chemicals cannot enter a direct-contact processUse a closed primary U-tube bundle so only heat crosses into the separately supplied secondary water.
Intermittent sterilizer loads cause clean-steam pressure swingsModulate the primary-steam control valve from secondary pressure while retaining useful steam volume in the horizontal vessel.
Poor secondary-water control promotes carryover or low-level tripsRegulate make-up flow continuously from the vessel level transmitter and configure high- and low-level alarms.
Scale or fouling increases bundle inspection downtimeMatch feed-water quality and blowdown practice to duty, then withdraw the bolted U-tube bundle through the service end.
Typical Applications
Healthcare autoclaves and washer sterilizersFood and beverage direct steam injectionCosmetic process-vessel heatingBioprocess equipment sanitizationAdditive-free clean humidification
Technical Parameters
Generator volume, U-tube area, clean-steam pressure, feed-water pressure, blowdown arrangement and control-valve duty are selected from the required load profile and available plant utilities.
| Core Material | 316L stainless steel clean-steam vessel, U-tube bundle and secondary piping |
|---|---|
| Panel Thickness | Generator shell typically 4.0–12.0 mm |
| Effective Width | Packaged skid width typically 1400–2600 mm |
| Maximum Length | Complete packaged skid length typically up to 3050 mm |
| Steel Facing Thickness | Control enclosure and skid sheet typically 1.5–3.0 mm |
| Core Density | 316L stainless steel density approximately 8000 kg/m³ |
| Thermal Conductivity | 316L stainless steel approximately 15 W/(m·K) at ambient temperature |
| Surface Finish | Polished clean-steam wetted surfaces with satin-finished external stainless steel |
| Joint Type | Bolted removable tube-bundle head, welded secondary piping and hygienic clamps at service instruments |
| Customization | Available based on the intended application and operating environment. |
Available Options
RO or demineralized feed-water configurationPneumatic or electric primary control valveIntegrated feed-water pumpAutomatic conductivity blowdownFeed-water preheating or degassingClean-steam separatorInsulated vessel and hot piping
Planning a Clean Steam Generator specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
