152300000146A004 Proportional pressure reducing valve Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

152300000146A004 Proportional pressure reducing valve Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

The 152300000146A004 proportional pressure reducing valve is a core pressure regulating component in the hydraulic system of Sany construction machinery. Specifically designed for Sany excavators and loaders, it is compatible with models such as the SY135, SY205, and SY365-10 series, and is compatible with similar hydraulic systems. It serves as the “precision pressure control center” of the hydraulic circuit. Its core function is to receive electrical signals to achieve proportional pressure regulation, reducing the high pressure before the valve to the required pressure after the valve according to a preset ratio, thus stabilizing the system pressure in real time. With its precise proportional control technology and stringent quality control, it effectively solves the pain points of traditional pressure reducing valves, such as large pressure reduction deviation, slow response, and poor sealing, reducing failure and maintenance costs. It is a preferred maintenance accessory.
This product adopts a dedicated SANY adapter design with a dimensional error within ±0.2mm. The mounting hole positions conform to national standards and can be connected by threads, allowing for quick assembly and replacement without special tools. The structure has been mechanically optimized, the valve core is wear-resistant and can withstand a nominal pressure of 31.5MPa, and has excellent vibration and shock resistance, which can prevent valve core wear and valve body cracking, suppress pressure fluctuations, reduce unplanned downtime losses, and adapt to harsh working conditions.

Core technical parameters:

– Product Model: 152300000146A004
– Compatible brands: Sany and similar compatible construction machinery
– Compatible models: SANY SY135, SY205, SY365-10 series excavators and loaders
– Standards implemented: GB/T 21386-2008, JB/T 10374-2002 (Complies with national and industry standards, quality guaranteed)
– Nominal pressure: 31.5MPa (High pressure resistant, suitable for the high pressure requirements of hydraulic systems in engineering machinery)
– Pressure reduction ratio accuracy: ±1.0%FS (Precise pressure reduction, stable ratio, meets industry standards)
– Rated flow rate: 63L/min (smooth flow, low flow resistance, does not affect the power output of the hydraulic system)
– Input signal: 4~20mA (linear electrical signal, compatible with PLC control, easy to adjust)
– Main body material: High-strength stainless steel (resistant to high pressure, corrosion, and vibration, suitable for complex working conditions)
– Sealing material: Fluororubber (FKM) (tight seal, oil and aging resistant, no media leakage)
– Operating temperature: -40℃~100℃ (wide temperature range, adaptable to various regions and working conditions)
– Dimensional tolerance: ±0.2mm (precise specifications, compatible with SANY hydraulic circuit installation)
– Suitable for: Hydraulic circuits of equipment such as Sany excavators and loaders, used for pressure proportional adjustment, system pressure control, routine maintenance, and fault replacement.

The 152300000146A004 proportional pressure reducing valve has undergone multiple tests for pressure reduction accuracy, sealing, pressure resistance, and vibration resistance, and meets SANY’s parts standards. It is easy to install and can be directly replaced, which greatly improves operation and maintenance efficiency, reduces pressure fluctuations, component wear and downtime losses, and lowers overall operation and maintenance costs.

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1 Valve block
2 152300000146A002 Relief valve
3 152300000146A003 Check valve
4 152300000146A004 Proportional pressure reducing valve
5 152300000146A005 Solenoid valve body
6 152300000146A006 Solenoid valve body
7 152300000146A007 Accumulator
8 152300000146A008 Transition Joint
9 152300000146A009 Coil
10 152300000146A010 Coil Connector Assembly

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