It’s no secret that the Deltec VF6000 has been one of our favorite automatic filter rolls for mechanical filtration of larger volumes of water. So it was with excitement that last month we learned of a new and improved larger model called theDeltec VF8000。There are so many ‘exotic’ European aquarium devices that take their sweet time arriving on American shores but to our delight, not only has the Deltec VF8000 already landed in the U.S., but we were fortunate enough to receive one of the first units which we’ve already put into service.
由于我们以前在最大的600加仑系统上安装了Deltec Vleece滤波器6000, and having the same general area for water to pass through it, we’ve found that the Deltec VF8000 handles the high flow rate even better, living up to its 2,000 liter per hour bonus over the VF 6000.
Curiously, the VF4000 and VF6000 are no longer listed on the德国Deltec网站instead being replaced with new models called the VF5000 and VF8000 although the VF4000 is still available for sale from U.S. distributor美国Deltec。有理由认为，这些新型号将以新的更高流量等级和相同价格的新型和改进的功能取代其前辈。
由于我们非常熟悉Deltec的第一代羊毛卷过滤器，因此我们非常了解可以增强VF6000的变化，并且似乎Deltec对第二代VF4000和VF8000做出了重大改进。Our unit is already well on its way to making our reef aquarium system cleaner and clearer while spooling up a ‘perfectly dirty’ roll of used filter paper during which time we’ve been able to identify 10 new features which should enable Deltec’s second generation of automatic filter rolls to perform better than ever.
悬挂支架– We’ve made a lot of noise regarding the need to提升所有自动过滤器卷的所有型号从水箱上的积水中出来，以使重力通过过滤器材料拉动尽可能多的水。Other smaller roll filters have long had an optional hanging bracket to achieve this elevation within the sump so it was a welcome addition to see hanging ‘hooks’ built into one side of the second generation Deltec VF8000, but it’s a little on the narrow side so it’ll need to hang on an internal divider instead of usually euro-braced outer sump walls.
直接驱动电动机– The biggest change to the Deltec Vleece Filter is the use of a motor in a direct drive orientation which eliminates the need for any gears. When the spool of used material starts to get full the larger radius increases the torque required to turn the spindle which at times caused slippage of the gears but without any gears the new design of the Deltec Fleece Filter works better than ever.
较薄的螺旋纺锤——的力量the direct drive motor is now even more efficient because the spindle for the used filter paper is now much thinner which will reduce the final radius when the used fleece roll starts to get full.
Smoother Unspooling Assembly– It might seem like a minor change but not only is the used filter spool thinner, but the spool for new, clean filter paper is now much larger and instead of spinning around a thin central axis it now spins around a much larger diameter, further reducing friction and the force required to advance new fleece.
锁定固定杆- 原始的固定杆将滤纸固定在适当的位置，两侧都固定了磁铁，这是一个聪明的解决方案，但倾向于在更高的负载下弹出。新的固定杆的手柄更长，现在用大的手柄将其插入到位，并具有引导滤纸并保持平整的额外奖励。
入口扩散器 -进入Deltec VF的水入口用于直接向下指向，有时会在滤纸周围引起湍流，并将其推向一侧或另一侧。但是现在，新的VF8000拥有一个非常漂亮的透明塑料扩散器，这应该有助于减少或消除湍流，从而导致羊毛材料的所有部分的水通道更多。
滤纸指南- 一个易于忽略的细节是，固定杆现在已经在两端上倾斜，倒角的指南，这将进一步有助于将过滤器材料固定在适当的位置，并以与网格的过滤板进行完美对齐。
Larger Overflow Channel –新的VF8000在外壳中内置了一个更大的溢流通道，不仅可以流过更多的水，而且如果没有在设备内的水位太高时，它在以前的型号上是非常可听见的，而这样做。
带有定向流出的封闭住房 -One of the more surprising new changes to the design of the Deltec fleece filter is that the entire unit is now enclosed as opposed to the more open, free flowing design of the first generation. The new enclosed housing helps to contain some of the noise from water draining through but it also now has a large diameter outlet which we really like since it creates a lot more flow through the sump helping to eliminate dead zones and areas of detritus buildup. It’spossiblethat with this new single outlet the Deltec VF4000 and VF8000 could be plumbed and used externally except there’s no access to the inside space for tightening down a bulkhead.
