In spite of this, the domestic slide valve pump and foreign products still have a long way to go, mainly as follows:
Noise, vibration big. Such as H-150 rotary piston pump, most domestic products to the feet land bolts , or due to vibration, pump crawling serious; fuel injection, oil spills. Serious pump failure, oil leakage after running, most of the products have this problem; stop the pump back to oil serious, resulting in difficult to start, so that the motor overload; poor stability, reliability, due to backward production and processing equipment, not only low production efficiency, and Poor interchangeability of parts, affecting the stability and reliability of the product.
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