| 摘要 |
A blowhead apparatus including a blowhead arm and a blowhead body having at least one blowhead therein. The blowhead body is removably connected to the blowhead arm. The blowhead includes a retaining member, a seating member mounted on a sealed bearing, and a sealing ring having a seating surface mating with a seating surface on the seating member. A fluid system for supplying high and low pressure air includes a sealed pilot operated shuttle valve for controlling the high and low pressure air, a pilot valve for controlling the shuttle valve, and an on-off valve for the low pressure air.
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