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No consumable filter cartridges or wire mesh inside. Resistant to welding slag and rust in medium, hard to block, avoiding frequent replacement of spare parts.
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Baffle Steam-Water Separator
1 Product Overview
Baffle Steam-Water Separator, also known as deflector steam-water separator, is an inertial collision gas-liquid separation equipment, commonly installed at boiler steam outlets, thermal pipe networks, air compressors and process gas pipelines. During transportation, wet steam carries a large amount of condensed droplets and water mist. Liquid water entering pipelines and heat exchange equipment easily causes water hammer impact, blade erosion, reduced heat transfer efficiency and accelerated internal pipeline corrosion.
After wet medium enters the separator, it flows through multi-stage baffles and the airflow is forced to change direction sharply many times. Light gas can bypass baffles smoothly, while droplets with higher density strike the baffle surface due to inertia, continuously converge into water flow, sink to the bottom liquid collection chamber by gravity and are discharged continuously through drainage devices. Dry and clean steam is delivered to downstream processes from the outlet.
Without any filter consumables inside, the equipment completes steam-water separation via physical inertia. It can resist impact from solid impurities and is not easy to block for long-term stable continuous operation. Manufactured in strict accordance with pressure vessel standards, multiple material options, pressure grades and installation forms are available. As standard pre-purification protection equipment for steam and compressed air systems, it is widely used in thermoelectricity, food, pharmacy, chemical industry, printing and dyeing, papermaking and other industries.
2 Main Structural Composition
Pressure-bearing ShellShell materials include Q235-B carbon steel with high-temperature anti-corrosion coating, 304 stainless steel and 316L stainless steel. Formed by integral rolled plate welding and subjected to hydraulic strength and tightness tests before delivery. Standard inlet and outlet flanges are equipped, supporting GB and ANSI standards. Vertical and horizontal structures are optional. Liquid collection space is reserved at the bottom with drainage connections. Large-diameter models can be equipped with manholes for convenient internal baffle inspection and maintenance.
Multi-stage Baffle AssemblyCore separation component. Multiple groups of staggered inclined baffles form a labyrinth flow channel. The baffle angle is optimized by fluid simulation to maximize droplet capture efficiency. Baffles are firmly welded with the shell, featuring high temperature resistance and airflow impact resistance. Droplets converge and slide down quickly after hitting baffles to avoid secondary entrainment by airflow.
Liquid Collection Chamber and Flow Guide StructureSedimentation liquid collection area is arranged at the lower part of the shell. The inner wall diversion slope guides condensed water to converge to the drain outlet and prevents local water retention. The height of gas phase space is reasonably controlled to reduce secondary atomization risk and ensure stable outflow of separated dry steam.
Matching Drain ConnectionStandard drain port at the bottom can be connected with manual blowdown ball valves, float steam traps and automatic drainers. It continuously discharges accumulated condensate, maintains low liquid level inside the chamber and prevents water vapor backflow caused by excessive liquid level.
Lifting Lug / Support Base (Optional)Vertical models are equipped with floor supports; horizontal models are reserved with lifting lugs for suspended pipeline installation, suitable for pipe gallery and overhead pipeline layout.
3 Working Principle
Wet steam carrying water mist and liquid droplets enters the inner cavity of the separator from the inlet and flows through staggered multi-stage baffles, forcing airflow to change direction continuously and repeatedly.Steam gas has low molecular weight and inertia and can move forward along baffle gaps. Liquid droplets and mist have higher density and inertia, unable to follow sharp airflow turning. They directly strike and attach to baffle surfaces. Numerous tiny droplets continuously coalesce to form continuous water film, flow down along baffles and finally fall into the bottom liquid collection chamber by gravity.Clean dry steam flows continuously towards the outlet and is delivered to the rear pipe network. Condensate inside the liquid collection chamber is discharged regularly or continuously through bottom drainage devices. Within a reasonable steam flow velocity range, the equipment maintains efficient steam-water separation. The multi-stage baffle structure still maintains stable capture capacity under flow velocity fluctuation.
4 Basic Technical Parameters
Applicable medium: saturated steam, superheated steam, compressed air, process gas without strong corrosionShell material: anti-corrosion carbon steel / 304 stainless steel / 316L stainless steelDesign pressure: 1.0MPa, 1.6MPa; non-standard customization available for high-pressure conditionsDesign temperature: ≤350℃Separation efficiency: ≥98% (liquid mist droplets ≥1μm)Pressure loss: ≤3kPaConnection type: flange connection (GB & ANSI optional)Installation mode: vertical floor installation / horizontal suspended installationNominal diameter: full specifications DN25～DN1200
5 Core Product Advantages
Pure mechanical inertial separation without filter cartridges or screens, eliminating blockage caused by aging consumables and greatly cutting long-term maintenance costs.
Multi-stage baffle structure adapts to steam flow fluctuation with stable dewatering performance under variable load.
Low operation pressure drop, avoiding insufficient system air supply and guaranteeing stable pressure of the whole steam pipe network.
Rich material solutions: carbon steel version for ordinary steam; stainless steel shell for humid and slightly corrosive working conditions.
Effectively eliminate water hammer in steam pipelines and protect turbines, valves, heat exchangers and drying equipment from droplet impact damage.
Improve steam dryness, raise thermal efficiency of heat exchange equipment and reduce energy consumption.
Simple and robust structure without internal moving parts, long service life, suitable for uninterrupted all-year continuous production.
Flexible installation mode supporting both vertical and horizontal layout, adapting to workshop pipe gallery and overhead pipeline arrangement.
Full specifications customized according to on-site pipeline parameters including diameter, pressure and length.
Integrated factory delivery. On-site construction only requires flange and drain pipeline connection with fast commissioning and short construction cycle.
6 Installation, Commissioning, Operation and Maintenance Specifications
Confirm flow direction marks before installation and connect pipelines strictly following inlet and outlet direction. Shut-off valves are recommended before and after equipment for offline maintenance. Keep drain port vertically downward during horizontal installation; ensure horizontal and stable supports for vertical installation. Install sealing gaskets between flanges and fasten bolts diagonally and evenly to prevent gas leakage.Open front-end valve slowly for initial startup to avoid instantaneous high-speed airflow impacting internal baffles. Monitor drainage status of bottom drainage device during initial operation to confirm normal condensate discharge.Daily inspection focuses on air leakage at shell welding seams and flanges. Regularly check blockage or failure of steam traps and automatic drainers to prevent secondary water vapor entrainment caused by excessive liquid level inside the chamber.During long-term shutdown maintenance, close front and rear shut-off valves, release pressure and cool down before opening covers to inspect internal baffles, clean sediment inside the shell and check welding seam corrosion. Repair anti-corrosion coating when necessary. Long-term operation exceeding design pressure and temperature is prohibited.
7 Common Faults and Solutions
Poor separation performance with continuous water carryover in rear pipelinesCauses: steam flow velocity far exceeding rated operating condition; blocked drain device leading to high liquid level in collection chamber; deformed or fallen baffles; wrong installation of inlet and outlet pipelines.Solutions: calculate steam flow and replace larger-size separator if necessary; clean and repair steam traps; open tank to inspect and restore baffles; check medium flow direction and reconnect pipelines.
Obvious pressure rise of the system and large air supply resistanceCauses: excessive internal sediment blocking flow channels; front and rear valves not fully opened; undersized nominal diameter selected.Solutions: shut down and open tank to clean internal sediment; fully open pipeline valves; recalculate working conditions and upgrade equipment diameter.
Abnormal drainage and continuous water accumulationCauses: blocked or stuck steam trap; frozen or blocked drain pipeline; undersized drain diameter.Solutions: disassemble, clean or replace drainage device; dredge drain pipeline; optimize specification of drain pipeline.
Leakage at flanges and shell welding seamsCauses: aging and damaged sealing gaskets; loose bolts due to thermal expansion; corrosion thinning of welding areas.Solutions: replace brand-new high-temperature resistant sealing gaskets; retighten bolts under high temperature; detect corroded areas, perform repair welding and reapply anti-corrosion treatment.
8 Standard Supply List and Optional Accessories
Standard Supply List
Pressure-bearing shell, multi-stage baffle assembly, inlet and outlet flanges, liquid diversion structure, equipment supports/lifting lugs and connecting fasteners.
Optional Accessories
Steam trap, automatic drainer, inspection manhole, liquid level monitoring port, lifting lug assembly, ANSI flange, thermal insulation cladding and blowdown ball valve.
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