There are gear, axes, and pump body, pump cover, bearing shell and seal of axle head etc in this gear pump series. The gear is made up by adopting tooth form of double-arc sine curve. Compared with involute gear, the most obvious merit of this pump is that there is no relative glide on the surface of tooth profile in the course of gear gnawing, so there is no abrasion on the surface of gear; it is stable operate; there is no appearance of boxing up liquid; and it is also low noise, long using life and high efficiency. This pump gets rid off the bondage of traditional design, which makes the pump get into a new filed in the designing, manufacturing and using of gear pump.
It has relief valve to exceed protection; the total reflux pressure of relief valve is 1.5 times of rating discharge pressure. It can also adjust according to the need in the range of discharge pressure. But it should be noticed that this relief value can not be long used as pressure reducing valve; if the pressure reducing valve is needed, it should be installed on the pipeline additionally.
The design of seal of axle head has two forms: one is mechanical seal and another one is packing seal, which can be determined according to the concrete service condition and client's requests.
Seeing from the overhang end of principal axis, it circumvolves deasil. |