Do you need a new steam generator?
We manufacture steam boilers -
Made in Germany
We produce high-speed steam generators (steam boilers) in various sizes with steam outputs of 150 to 4000 kg/h and operating pressures of 13 bar in the standard version and up to 70 bar as a special design. Depending on the capacity, either in vertical or horizontal design.
They are manufactured in-house at ZAFA in accordance with the European Pressure Equipment Directive 2014/68/EU and the EN 12952 regulations with type examination and CE mark.
Your benefits working with ZAFA
The following applies to our rapid steam boilers:
High Quality
ZAFA rapid steam generators last for decades in case of appropriate maintenance
Cost effective maintenance
The design of the system allows for cost-effective and efficient maintenance to minimize operating costs over the life of the system.
Favorable price-performance ratio
The Zafa equipment is an inexpensive solution compared to other brands.
Optimized heating surface load
The optimized heating surface load ensures a higher longevity of the system.
Simple and safe operability
Automated start/stop function allows very easy operation of the steam boiler.
Fully TÜV-certified
All equipment is tested several times by TÜV during production and installation.
Our product portfolio - Rapid steam boilers
Type
DK
- 150
- 250
- 300
- 400
- 500
- 600
- 750
- 1000
- 1450
- 1700
- 2200
- 3000
- 3400
- 4000
Steam Output
kg/h
- 150
- 250
- 300
- 400
- 500
- 600
- 750
- 1000
- 1450
- 1700
- 2200
- 3000
- 3400
- 4000
Operating pressures
bar
- 13/25/41
- 13/25/41
- 13/25/41
- 13/25/41
- 13/25/41/70
- 13/25/41/70
- 13/25/41/70
- 13/25/41/70
- 13/25/41/70
- 13/25/41/70
- 13/25/41/70
- 13/25/41
- 13/25/41
- 13/25/41
Categorie 2014/68/EU
- III / IV
- III / IV
- III / IV
- III / IV
- III / IV
- III / IV
- III / IV
- III / IV
- III / IV
- III / IV
- IV
- IV
- IV
- IV
Heat Output
KW
- 110
- 165
- 298
- 264
- 333
- 396
- 495
- 661
- 958
- 1123
- 1453
- 1981
- 2245
- 2642
The heat output is based on 90°C feed temperature - subject to changes
Additional options
Boiler control "Modulating"
Contrary to the two-stage power boiler control (pressure control), we have the option of "modulating" boiler control between 40 and 100% for gas-fired systems. The amount of water required for this purpose to the amount of energy is guaranteed by the use of a frequency-controlled feedwater pump. If the steam consumption is within the control range of the steam boiler, the adjusted setpoint (operating overpressure) is kept constant for the most part.
Modular design
In addition to the tried and tested standard version, we also produce custom-designed steam boilers in modular construction to create a ready-to-operate steam boiler system for your specific needs. On request, including installation in a container or alternatively with mounting on a truck for a mobile steam plant.
Automatic start
Another option is the "automatic start-up device" i.e. this automatic start-up device enables automatic start-up, shut-down and the daily necessary backwash (blowdown). This mode of operation is possible through the use of control valves, a thermostat and a small additional control unit.
Rapid steam generator - Accessories
Exhaust gas heat exchanger
The air heat exchanger has the task of cooling down the exhaust gases from the rapid steam boiler and feeding the energy obtained from them to the feedwater, i.e. the feedwater is fed into the steam generator via the air heat exchanger by means of the feedwater pump.
Water separator
Thanks to the water separator installed just downstream of the boiler system, we obtain dry and clean saturated steam for the most part. The specifically heavy particles such as condensate and dirt are separated from the light carrier medium steam by deflection forces and guided to the drain nozzle. The separator is also used for continuous demineralisation of the system.
Feedwater tank
The feedwater tank or condensate tank has, among other things, the task of thermally degassing the treated feedwater and collecting the condensate produced. The tank is made of stainless steel in horizontal round shape. It is designed for unpressurized operation and must be connected to the atmosphere via an unblockable vapor line. The feed water is controlled by a level switch, the switchgear of which is installed in the boiler control cabinet.
Water treatment system / osmosis system
The water treatment plant with fully automatic regeneration works according to the sodium-ion exchange process and also consists of two corrosion-resistant fiberglass tanks with a filter filling made of high-quality base exchange material and a brine tank. The calculated flow rate is determined by an electronic system, i.e. the flow rate is constantly counted in order to avoid a hardness slump. Before the softener resin of the first base exchanger is exhausted, an automatic switchover to the second exchanger takes place.
Dosing systems
The dosing pump is a self-priming diaphragm pump driven by a stepper motor and electronics. Adjustable between 0.15 and 100%. The pump is mounted ready for operation on the dosing medium tank. The control should be done via a contact water meter.
Optimum suction behavior, as the pump always operates with full suction stroke volume. Continuous dosing, as the pump is primed with a short suction stroke and dosed with the longest possible dosing stroke, regardless of the current dosing capacity.Mixing Cooler/ Blowdown Cooler
Steel tank for the introduction of the very hot waters from the steam boiler (steam mixture from the start-up, backwash water, residual moisture of the water separator). When the temperature rises to about 70 degrees, the thermostatic valve opens and fresh water is added. The overflow is connected to the sewerage system.
Simple and inexpensive repair
The ZAFA product range also includes the manufacture of all pipe baskets and pressure bodies which are required in the various process plants. They are manufactured exclusively in-house by certified welders.
Our tube baskets can be manufactured and installed quickly and inexpensively by us. Thus, your steam boiler can be repaired and put into operation as quick as possible. You do not have to buy a new rapid steam boiler.
