Steam Mixing Valves


Horne Steam Injection Heater


The HORNE EA-1 valve must be fitted above the heating coil in the tank. It may be fitted in any orientation where the thermostat element is level with, or below, the valve body. It should NOT be fitted with the thermostat element above the valve body. A strainer should be fitted in the pipeline before each valve.Where the HORNE EA-1 is being fitted to a tank which also contains an electric immersion heater, the electrical heater thermostat MUST be set at a slightly lower temperature than the control temperature for the HORNE EA-1, otherwise the HORNE EA-1 thermostat element will be overheated.
The HORNE EA-1 thermostat element must be located in a position which is always immersed in the fluid being heated. Where the element is inserted vertically in the tank, the thermostat pocket must be long enough to ensure that, at the lowest liquid level in the tank, at least 230mm of the thermostat pocket is immersed in the liquid. The HORNE EA-1 valve includes an integral thermostat pocket. It should NEVER be fitted into a separate pocket or thermowell. heated. Where the element is inserted vertically in the tank, the thermostat pocket must be long enough to ensure that, at the lowest liquid level in the tank, at least 230mm of the thermostat pocket is immersed in the liquid. The HORNE

Applications:
- water heating by direct steam injection
- heating the contents of industrial washing machines
- boiler hotwells
- hot rinse tanks
- often used in conjunction with the HORNE EA-1 thermostatic control valve for accurate control

Features:
- manufactured entirely from stainless steel (no maintenance required)
- 3/4" BSP pipe connection
- one size available with 4 pressure (Bar) ratings:
* 0 - 4  * 4 - 5.5  * 5.5 - 7  * 7 - 8.5
Benefits:Horne Steam Injection Heater
- rapid water heating   - efficient use of steam   - extremely low noise and vibration
- increases life of water tanks etc  - no maintenance

 




Thermostatic Mixing Valves


Thermostatic mixing valves mix the hot and cold water supplies to produce mixed water at a controlled temperature. The hot water supply from the heater is typically approximately 60°C. and is maintained at this temperature for a number of reasons:

* to prevent the growth of potentially harmful organisms in the water system, in particular the Legionnella bacteria, which can cause Legionnaires disease.
* to provide water at a suitable temperature to the kitchen and laundry
* to provide a greater capacity of warm water to the building (by mixing with larger volumes of cold water)
However, exposure to water above 60°C can scald, with potentially lethal consequences. Therefore hot water should be mixed with cold water at the point of use (e.g. basin, bath, shower or bidet) to provide warm water at safely controlled and comfortable temperatures.
APPLICATIONS:
Point of use mixing for washhand basins, bidets, baths and showers in hospitals, schools, sport and leisure facilities, prisons and other public buildings.
Key features:
* 100% performance tested
* Accurate & reliable temperature control
* Full bore strainers protect valve mechanism & downstream fittings (e.g. taps)
* Flow regulator for water economy
* Automatic shut off if either water supply fails
* Easy installation, commissioning & maintenance


Added Benefits of the Horne 15 4th Connection:
* Strainer also protects the cold tap mechanism
* cold tap isolation
* Elimination of components = save money
* Reduced installation time = save money

 





Steam Mixing Valves


HOT WATER IMMEDIATELY AVAILABLE. HOT WATER TEMPERATURE CONTROLLED BY A THERMOSTAT.
COLD WATER FLOW REQUIRED TO OPEN STEAM VALVE.
* EASE OF USE.
* EASE OF MAINTENANCE.
* RELIABILITY AND DURABILITY.
* NO NEED TO STORE HOT WATER IN CALORIFIERS OR TANKS.

HOT WATER, AT THE REQUIRED TEMPERATURE, AVAILABLE IRRESPECTIVE OF CHANGES IN INLET STEAM AND COLD WATER SUPPLY PRESSURES.
STEAM CAN NOT ENTER THE SWM1 VALVE UNTIL COLD WATER IS PASSING THROUGH IT. IF THE COLD WATER SUPPLY PRESSURE DROPS SIGNIFICANTLY OR THE SUPPLY FAILS OR IS TURNED OFF, THE STEAM SUPPLY IS AUTOMATICALLY CUT OFF. NO NEED TO ADJUST BY-PASS VALVES, CHANGE SPRINGS OR OTHER VALVE INTERNALS ON SITE TO COPE WITH CHANGES IN STEAM AND/OR COLD WATER SUPPLY PRESSURES. EASILY STRIPPED AND CLEANED WITH THE MINIMUM OF DOWNTIME. MATERIALS OF CONSTRUCTION SPECIFICALLY
CHOSEN TO GIVE A TROUBLE FREE WORKING LIFE.

Max. steam pressure 10 bar g
Max. cold water pressure: 10 bar g
Max. hot water flow rate: 50 l/min
Min. steam pressure 0.7 bar g
Min. cold water pressure: 0.25 bar g
Min. hot water flow rate: 10 l/m




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