60075549 Check Valve Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

60075549 Check Valve Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

As a core anti-backflow component in fluid control systems, the 60075549 check valve boasts four major advantages: unidirectional flow, tight sealing, flexible opening and closing, and high pressure resistance. It is widely used in heavy equipment and pipelines such as excavators, cranes, and hydraulic accumulator circuits, undertaking the functions of directional medium transport and anti-backflow. Relying on the medium pressure difference to overcome the spring force, it automatically opens and closes without additional power, avoiding the hidden dangers of equipment component wear and system pressure fluctuations caused by medium backflow, ensuring stable system operation, adapting to various models, and being easy to install.
Compared to ordinary check valves, this product uses high-quality materials and is precision-machined, strictly adhering to the industrial standards GB/T 12224-2015 and JB/T 10696-2006. The main body is made of 45# forged steel (304/316L stainless steel can be customized), the valve core is a hardened steel ball, and the seals are made of oil-resistant nitrile rubber (NBR). Manufactured through multiple processes, it has a dense, defect-free structure and excellent high-pressure resistance, wear resistance, and corrosion resistance, effectively solving problems such as seal failure and valve core jamming, reducing maintenance costs. Its direct-acting design results in low flow resistance and rapid opening and closing, adapting to pressure ratings from PN31.5 to PN42, balancing reliability and convenience, and precisely matching the backflow prevention requirements of high-pressure hydraulic systems.

Core technical parameters:

-Product Model: 60075549
-Product Name: Check Valve (for preventing backflow)
– Compatible models/scenarios: Excavators, cranes, hydraulic accumulator circuits, etc. (Specifications can be verified)
–  Structure type: Direct-acting spring ball structure, with integrated valve core, spring and seals, automatic opening and closing due to pressure difference, no additional power required, achieving zero leakage.
– Material Specifications: Body made of 45# forged steel (304/316L stainless steel can be customized), valve core made of hardened steel ball, NBR seals, surface galvanized/passivated for corrosion protection.
– Dimensions: Compatible with DN20 pipes, nominal diameter 20mm, valve body length 75mm, inlet/outlet diameter 20mm, tolerance GB/T 1804-m, flatness ≤0.005mm
– Pressure parameters: Rated working pressure PN31.5MPa, maximum burst pressure 94.5MPa, leakage ≤0.01ml/h, opening pressure ≤0.1MPa
-Mechanical parameters: Rockwell hardness HRC40-45, tensile strength ≥520MPa, impact toughness ≥80J/cm², valve core opens and closes smoothly without jamming.
-Environmental parameters: Operating temperature -40℃ to 120℃, adaptable to dusty, oily, and high-vibration conditions, resistant to rust, aging, and media corrosion.
– Machining process: Precision forging + CNC turning + precision grinding + corrosion protection + sealing adjustment, resulting in a burr-free surface and precise dimensions.
-Installation method: Threaded/flange connection. The direction of media flow must be considered. The mounting surface must be clean. Do not subject to impact or reverse installation.
-Quality Standards: Compliant with GB/T 12224-2015 and JB/T 10696-2006 standards; fully tested and accompanied by a certificate of conformity.
-Service life: ≥5000 hours under normal operating conditions, ≥3000 hours under high pressure and heavy load, far exceeding that of ordinary aftermarket products.

Our 60075549 check valve undergoes rigorous testing and debugging, ensuring traceable quality and reliable after-sales service. We support bulk purchasing and customization, meeting the backflow prevention requirements of equipment and pipelines, making it a preferred component for fluid control systems.

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22 60100467 Blocked
26 60075542 (Traffic jam)
27 60202293 O-ring
31 60075591 Spring
32 60075548 Check valve
38 60357901 Flange
39 60357906 Logic control valve
40 60357904 Boom 1 Logic Valve
41 60281369 Square circle
42 150602080013A007 Bolt
43 60075549 Check valve
44 150602080013A028 Spring
45 60075540 (Traffic jam)
47 60075552 Valve cover
48 60100512 Socket headstock screw
51 60319532 O-ring
60 60221657 O-ring

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