| 摘要 |
<p>A supply system for supplying a liquid reagent from a storage tank to a dispensing head, for example a foam moulding head, comprising a tank (10) having a lid (14) moveable between a closed position and an open position affording access to the interior of the tank and the underside of the lid, a pump (26) and a distribution valve (36) disposed on the underside of the lid and drive means for the pump and for the valve on the exterior of the lid. Should leakage occur in use from the pump and/or the valve then the leakage takes place into the tank.</p> |
