Pilot relief valve pilot valve section is an easy-vibration parts shown in Figure 3. When the overflow under high pressure conditions, the axial opening small pilot valve, hydraulic repair phone, only 0.003 to 0.006 cm. Flow area is small hydraulic repair quote, flow rate is high, up to 200 m / s, hydraulic repair phone, can lead to uneven pressure distribution, so the cone valve radial force imbalance and vibration. Also ovality generated during machining cone valve and cone seat, the pilot valve orifice and regulator spring dirt stick to deformation, can cause vibration cone valve. It is generally believed that the pilot valve is noise occurring vibration source site. Machining accuracy due to the impact, causing the main valve radial clamping, do not open the main valve on the pressure or primary pressure relief valve is not closed, and the other due to pollution caused by radial clamping. Relief in the use of the regulator failures that sometimes occur. Pilot relief valve regulator failures that have two kinds of situations: one is to adjust the pressure regulator handwheel can not be established, Hanzhong hydraulic pressure, or pressure is less than the nominal value; the other hand wheel adjustment pressure does not drop, even constantly boost. Appears regulator failure, in addition to the spool due to various causes radial clamping, there are some of the following reasons: Hanzhong hydraulic, Xi'an Chengtong hydraulic repair, hydraulic maintenance considerations from Xi'an Chengtong hydraulic maintenance Limited. Hydraulic Hanzhong, Xi'an Chengtong hydraulic repair, hydraulic maintenance considerations Xi'an Chengtong hydraulic maintenance Limited (www.xayeya.com) (www.xayeya.com) this year introduced a new upgrade, the above picture is for reference only, please call Tel This page or image on to obtain the latest information, contact: money work.