Brand Model: Yuken YUKEN DSG-03-3C12-D24-50 type (channel position): straight-through, direct-acting, pilot direct-acting temperature: room temperature, high temperature materials: steel, stainless steel, cast iron custom processing: No Nominal diameter: 6-2400 (mm) Nominal: 2-42 (MPa) Temperature: -196--1000 (℃) Valve Co., Ltd. Shanghai Building a complete product, please consult Fault Diagnosis: liquid Shu five pump Suction and intake noise. General working oil dissolved air ratio less noise impact is not great. However, in the event of oil mixed with air, the effect is enormous. Many hydraulic systems operating noise is very small at the beginning, but after a period of operation, a larger noise, the oil tank for containing small bubbles become milky white, proved oil in the air has been mixed people. After working oil mixed in the air people, cavitation, the noise level will increase by 10 ~ 15 dB, it is easy to distinguish the issue screams. Therefore, control of air intrusion is an important way to reduce noise. Yao site inspection and cleaning methods are: the fuel tank level is too low, oil should be enough, general pump suction nozzle from the oil tank Gao degrees 140 160 mm shell appropriate D No U oil is too low? Suction waves generated from the suction pipe inhaled air 0 inlet pipe seal to reliably, without leakage at the seals to remain intact, found leaks, can tighten the fittings or replace seals. These filters are not blocked or strainer too dense cold (usually about 70 mesh), otherwise it will cause suction resistance is too large. Grease filters must not be exposed surface or inserted too shallow depth oil. General grease filter should be placed under the oil tank 2/3.