Technical data
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Working temperature:
Min. -20°C/Max. 80°C
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Max. working pressure:
1.0 MPa (10 bar)
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Media 1:
Water - Glycol mixture max. 50%
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Media 2:
Water - Ethanol mixture max. 30%
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Thread standard:
G - male thread
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Material, valve body:
Brass EN 12165 CW617N
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Material, insulation:
Expanded Polystyrene EPS
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Other data:
(Working temperature: Max. +60° C)
Mesh opening, filter Main valve DN25, DN32: 0,6 mm²
Main valve DN50: 0,8 mm²
Fillingvalve DN25, DN32: 0,7 mm²>
Fillingvalve DN50: 0,8 mm²
Material, filter element Main valve: Plastic, Stainless steel
Filling valve. Stainless steel
Material, insulation Expanded Polystyrene EPS (DN25, DN32)
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Material, sealing:
EPDM
LK 521 MultiFill® is a combination valve for easy filling of refrigerant fluid into ground source heat systems. The valve has a filter to protect the evaporator against possible grit. Its compact construction allows it to be installed in tight spaces. The valve comes with an insulation to protect against condensation and possible icing. LK 521 MultiFill® can also be used in other applications where filling and filtration are required.
Arrows on the valve body indicate the direction of the flow. The enclosed insulation should be used.
Apart from cleaning the filter no maintenance is required. The filter should be cleaned immediately after installation, a month later and then every other year or when refilling fluid to the system. Check the installation regularly.