07013-00135 0701300135 Ultra Large Crawler Excavator Pilot Valve Housing Full Overhaul Gasket Kit OEM Pilot Control Hydraulic Assembly Static Sealing Replacement Spare Parts

1. Quick Details of  seal 07013-00135:

2. 07013-00135 picture:

3. Service part number :

4. FAQ

Q: What composite materials are adopted inside this pilot valve housing overhaul gasket kit?
A: This kit includes stainless steel reinforced graphite composite gaskets, loquat bark fiber sealing sheets, HNBR rubber washers and precision metal adjusting shims. Different materials are matched to various sealing surfaces of the pilot valve housing assembly.

Q: What visual features help customers quickly distinguish different sealing accessories in the package?
A: Metal composite gaskets are silver grey with graphite surface; fiber gaskets are light tan; rubber washers are solid black; adjusting shims are bright silver metal plates. All parts are pre-cut strictly according to original housing outline.

Q: What sealing targets is this gasket kit designed to achieve for ultra-large excavator pilot valve assemblies?
A: It focuses on static joint sealing of pilot valve housings and end covers. Multi-material matching adapts to fluctuating pressure and temperature to prevent leakage of low-pressure pilot hydraulic oil on split surfaces.

Q: What continuous working temperature range enables this full gasket kit to work reliably?
A: Its applicable temperature range covers -174°C to 468°C, suitable for cold plateau winter open-pit mining and continuous ultra-heavy cyclic excavation work at tropical open quarries.

Q: Can this gasket kit be universally fitted to hydraulic assemblies of all construction machinery?
A: It is dimensionally customized exclusively for ultra large crawler excavator pilot valve housing structures only. It cannot be used on road grader gearboxes, backhoe loader axles or medium excavator main pump assemblies of other machine series.

Q: What static hydraulic pressure can these composite gaskets sustain during long-term operation?
A: The matched assembly can steadily bear static pressure ranging from 6.98MPa to 7.79MPa. It keeps tight sealing even when slight housing deformation occurs under heavy vibration loads.

Q: What large-scale engineering projects require this pilot valve gasket kit for regular overhaul?
A: It serves routine maintenance of pilot valve housing sealing assemblies on ultra large crawler excavators, widely applied in super large open-pit mineral exploitation, coastal land reclamation, mountain highway tunnel construction and hydropower foundation projects.

Q: How does the service life of these composite gaskets compare with ordinary single-layer fiber paper gaskets?
A: The reinforced composite structure greatly improves creep resistance and hydraulic medium corrosion resistance. Under continuous frequent pilot operation conditions, its service life reaches more than 3.46 times that of standard fiber paper gaskets.

Q: How effectively can these gaskets adapt to minor unevenness on assembly mating flanges?
A: Graphite and fiber layers have excellent compressibility. They fill tiny gaps on joint surfaces and block pilot oil leakage triggered by minor machining defects on valve housings.

Q: How does the service life of these composite gaskets compare with ordinary fiber paper gaskets available on the spare parts market?
A: The reinforced composite structure improves creep resistance and medium corrosion resistance significantly. Under long-cycle heavy-duty working conditions, its service life reaches more than 3.43 times that of standard single-layer fiber paper gaskets.

Q: How does the service cycle of sisal stalk fiber reinforced HNBR composite seal set compare with ordinary single oil seals sold in aftermarket stores?
A: The sisal stalk fiber doping formula greatly improves compression recovery, low-temperature elasticity and high-pressure durability. Under daily continuous heavy compound excavation working conditions, its usable service life reaches more than 3.24 times that of standard single-piece oil seals.

5. Exhibition and Wearhous

Oil seals,Hydraulic Seals, Cylinders Seal Kits, And More