DU144 Automatic Bypass Valve
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| The DU144 automatic bypass valve controls water flow in the heating circuit according to the water pressure across it and is used to maintain a minimum flow rate through the boiler and to limit ciruclation pressure when other water paths are closed. |
| A bypass circuit must be installed if the boiler manufacturer requires one, or specifies that a minumum flow rate has to be maintained whilst the boiler is firing. |
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| Materials |
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Valve housing, fittings, bonnet and handwheel made of brass |
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Spindle made of stainless steel |
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Plug made of plastic |
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All sealings made of EPDM |
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Protection cap made of red plastic |
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| Medium type |
water or water-glycol mixture according to VDI 2035 |
| Media temp. |
2 ... 130 oC |
| Max. operating pressure |
10 bar |
| Differential pressure setpoint range |
0.1 ... 0.6 bar |
| Kvs value |
2.3 |
| Product description |
with compression fittings for 22mm copper pipe |
| Type |
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DU144A1001  |
