Steam injector · In-line heating
280 liquid heater
In-line mounting
Steam jet heater that heats liquids flowing through pipes. The steam exits through small angled holes in the nozzle and mixes evenly with the liquid, which also gains pressure at the outlet.
- Sizes8 · 1,500 to 30,000 l/h
- ConnectionDIN PN16 flanges
- Ports25 to 125 mm
- Pressure and temperature16 barg at 200 °C
- Test15 → 65–75 °C steam at 4 bar
- BodyWCB steel or CF3M stainless
Questions about selection? Call 933 720 888 or email valfonta@valfonta.com.
- No moving parts: less noise and vibration
- Maintenance-free
- Heats the liquid and raises its pressure
- Valfonta, Badalona, since 1962
What the 280 heater is used for
The 280 is Valfonta’s steam injector for liquids in pipelines. The steam passes through small angled holes in the nozzle and forms jets that drive the liquid toward a low-pressure zone and create turbulence: this way, steam and liquid mix evenly and the temperature rises.
In addition to heating, the 280 raises the pressure of the liquid at the outlet. If what you need is to heat the contents of a tank, see the 260 injector. Learn more in our article on the steam injector.
- Barrel and drum washingHeating of water for washing barrels, tanks, and drums.
- Frost-prone pipingInstallation in piping where frost may form.
- Breweries and sugar millsHeating of liquids in breweries and sugar mills.
- Dyehouses and chemical industryHeating of liquids in dyehouses and chemical plants.
280 heater technical specifications
| Type | Steam jet heater for pipelines, with no moving parts |
|---|---|
| Sizes | 8 sizes (No. 0 to No. 7), from 1,500 to 30,000 l/h of mixture |
| Output rating conditions | Saturated steam at 4 bar and liquid to be heated at 1 bar, from 15 °C to 65–75 °C |
| Effect on pressure | Raises the outlet pressure of the liquid |
| Connection | DIN PN16 flanges |
| Ports | Dimension a from 25 to 100 mm and dimension c from 25 to 125 mm, depending on size |
| Maximum pressure and temperature | PN16 body: 16 barg at 200 °C |
| Body material | A216 WCB carbon steel · A351 CF3M stainless steel |
| Nozzle material | RG10 bronze (standard) · A351 CF3M stainless steel · Monel |
| Maintenance | None, as it has no moving parts |
Sizes and dimensions
| No. | Mixture (l/h) | a | b | c | d | e | f | g | L |
|---|---|---|---|---|---|---|---|---|---|
| 0 | 1.500 | 25 | 115 | 25 | 115 | 70 | 160 | 75 | 230 |
| 1 | 2.500 | 25 | 115 | 32 | 140 | 85 | 180 | 90 | 265 |
| 2 | 4.500 | 40 | 140 | 50 | 165 | 100 | 210 | 105 | 310 |
| 3 | 7.000 | 50 | 165 | 65 | 185 | 110 | 240 | 120 | 350 |
| 4 | 10.000 | 65 | 185 | 80 | 200 | 125 | 255 | 130 | 380 |
| 5 | 15.000 | 65 | 185 | 100 | 220 | 140 | 285 | 140 | 425 |
| 6 | 20.000 | 80 | 200 | 100 | 220 | 150 | 300 | 145 | 450 |
| 7 | 30.000 | 100 | 220 | 125 | 250 | 150 | 320 | 153 | 470 |
Dimensions in millimeters, according to the datasheet drawing. Mixture flow rates with saturated steam at 4 bar and liquid at 1 bar, from 15 °C to 65–75 °C.
How the 280 heater works
- Steam jets. The injected steam passes through small angled holes in the nozzle, which turn it into jets.
- Low pressure and turbulence. The jets drive the liquid toward a low-pressure zone and create turbulence.
- Mixing. Liquid and steam mix evenly and the liquid temperature rises.
- Outlet. The liquid leaves hotter and at a higher pressure than at the inlet.
280 heater technical documentation
The 280 compared with other Valfonta injectors and ejectors
Models 248 and 250 pump or mix; the 260 and 280 heat liquids with steam.
| Model | Function | Motive fluid | Fluid drawn in or heated | Connection and sizes | Body material | Max. P and T |
|---|---|---|---|---|---|---|
| 248 | Pump and mix | Water, steam, or air | Liquids, solids, or gases | PN16 flanges · DN15–125 | WCB, bronze, or CF3M | 16 barg / 200 °C |
| 250 | Lift liquids | Dry steam or water | Cold, hot, or viscous liquids | BSP thread 3/8″–1½″ | Bronze or 316 stainless | 16 barg / 200 °C |
| 260 | Heat a tank (at the bottom) | Steam | Tank liquid, up to 90 °C | R ½″–1½″ thread · DN15–40 | 316 stainless | 16 barg / 200 °C |
| 280 | Heat liquid in-line | Steam | Circulating liquid | PN16 flanges · 25–125 mm ports | WCB or CF3M | 16 barg / 200 °C |
Data from each model’s datasheet. Models 248 and 250 are grouped under steam and liquid ejectors.
Frequently asked questions about the 280 heater
What is the difference between the 280 heater and a tank injector?
The 280 heats the liquid as it flows through a pipe. The 260 injector heats the contents of a tank and recirculates them.
What flow rate can it heat?
From 1,500 to 30,000 l/h of mixture, depending on size. These values were calculated with saturated steam at 4 bar and liquid at 1 bar at the inlet.
What temperature does the liquid reach?
Under the datasheet test conditions (saturated steam at 4 bar and liquid at 1 bar), the liquid goes from 15 °C to between 65 and 75 °C.
Does it raise the liquid pressure?
Yes. In addition to heating, the 280 raises the outlet pressure of the liquid.
What materials is it available in?
The body is available in A216 WCB carbon steel or A351 CF3M stainless steel. The nozzle, in RG10 bronze (standard), A351 CF3M stainless steel, or Monel.
Other Valfonta injectors and ejectors
260 injector
248 ejector
250 ejectorRequest a quote for the 280 heater
Give us the details of the line and the available steam, and we will recommend the heater size and materials.
- Available steam pressure
- Liquid to be heated and flow rate
- Liquid inlet pressure
- Initial and final temperature
You can also call 933 720 888.
