XCMG Main Valve

What is the XCMG Main Valve

The XCMG Main Valve represents the sophisticated control nucleus of the hydraulic system, integrating multiple precision components to deliver exceptional operational control and fluid management. This comprehensive assembly centers around the core 3501-939 VALVE unit, which coordinates with specialized valve core assemblies including VALVE CORE ASSEMBLYA19, 3611-647 VALVE CORE ASSEMBLYD2, VALVE CORE ASSEMBLYT8, 3611-645 VALVE CORE ASSEMBLYB8, and VALVE CORE ASSEMBLYM9 to regulate hydraulic flow with remarkable precision.
The valve’s operational mechanism features precisely matched spool components such as SPOOLA19, 3610-534 SPOOLD2, SPOOLT8, 3610-547 SPOOLB8, and SPOOLM9 that work in conjunction with multiple spring elements including 3531-134 GUIDE SPRING, 3590-576 SPRING, 3590-614 SPRING, and 3590-208 SPRING to ensure responsive control and stability. The comprehensive sealing system incorporates numerous ORING components with specific designations like 8202-028 ORING, 0201-116 ORING, 0207-008 ORING, and 0204-109 ORING, complemented by 0859-327 SUPPORT RING and 0859-330 SUPPORT RING elements that maintain system integrity under extreme pressure conditions.
Structural protection is provided through multiple cover assemblies including 3503-228 VALVE COVER, 3503-201 VALVE COVER, 3503-215 VALVE COVER, 3526-713 COVER, and 3526-654 COVER, all securely fastened with precision 8072-121 INNER HEXAGON SCREW, 8072-147 INNER HEXAGON SCREW, and 0576-034 INNER HEXAGON SCREW components. The valve incorporates specialized control mechanisms such as the 3537-326 OVERFLOW VALVE ASSEMBLY, 3537-286 OVERFLOW VALVE ASSEMBLY, MAIN RELIEF VALVE, and multiple CHECK VALVE units including 3513-362 CHECK VALVE, 3513-256 CHECK VALVE, and 3513-367 CHECK VALVE that ensure system safety and performance.
Additional critical components include the 3597-265 SHOCK INSULATOR, 3597-269 SHOCK INSULATOR, 3508-270 SHOCK INSULATOR for vibration damping, 3517-126 BASE for structural support, and various THROTTLE VALVES for flow regulation. The integration of 3526-821 PLUG, 3526-649 PLUG, 0879-060 BLIND FLANGE, and end cover components like 3504-094 END COVER COMPONENT, 3504-093 END COVER COMPONENT, and 3504-100 END COVER COMPONENT complete this sophisticated hydraulic control system.
Every component within the XCMG Main Valve is precision-engineered to work in perfect harmony, delivering reliable performance, precise control, and extended service life in the most demanding operating conditions. The advanced engineering and robust construction of the XCMG Main Valve demonstrate XCMG’s commitment to hydraulic system excellence and operational reliability in heavy equipment applications.

Parameters of XCMG Main Valve

804009079 MAIN VALVE
316102091 MAIN VALVE INSTALLATION ASSEMBLY
No.	PART NUMBER	NAME
1	860201368	3501-939 VALVE
2	860169196	VALVE CORE ASSEMBLYA19
3	860201370	3611-647 VALVE CORE ASSEMBLYD2
4	860169107	VALVE CORE ASSEMBLYT8
5	860201372	3611-645 VALVE CORE ASSEMBLYB8
6	860169203	VALVE CORE ASSEMBLYM9
7	860201374	8202-028 ORING
8	860201376	3503-228 VALVE COVER
9	860201377	3503-201 VALVE COVER
10	860201378	8072-121 INNER HEXAGON SCREW
11	860201379	0201-116 ORING
12	860201380	3503-215 VALVE COVER
13	860169206	SPOOLA19
14	860201382	3610-534 SPOOLD2
15	860169193	SPOOLT8
16	860201384	3610-547 SPOOLB8
17	860169200	SPOOLM9
18	860201386	3526-477 PLUNGER COVER
19	860201387	3531-134 GUIDE SPRING
20	860201388	3590-576 SPRING
21	860201389	3590-614 SPRING
22	860201390	3513-362 CHECK VALVE
23	860201391	3590-208 SPRING
24	860201392	3597-265 SHOCK INSULATOR
25	860200253	8202-014
26	860201393	0859-327 SUPPORT RING
27	860201394	3526-713 COVER
28	860201397	3508-139 MIDDLE VALVE BODY
29	860201501	3526-654 COVER
30	860200299	8202-009
31	860201500	0824-051 COVER
32	860201395	3597-269 SHOCK INSULATOR
33	860201396	3590-598 SPRING
34	860169195	VALVE
35	860169191	VALVE CORE ASSEMBLYA18
36	860169108	VALVE CORE ASSEMBLYC14
37	860169112	VALVE CORE ASSEMBLYB27
38	860201415	3611-603 VALVE CORE ASSEMBLYG
39	860201423	O-RING
40	860201424	COVER
41	860200273	O-RING
42	860201425	O-RING
43	860201426	8072-147 INNER HEXAGON SCREW
44	860201404	CDWASHER
45	860201427	8072-141 INNER HEXAGON SCREW
46	860201428	0207-008 ORING
47	860201429	0204-109 ORING
48	860201430	0824-053 COVER
49	860201431	0208-002 ORING
50	860201432	0207-017 ORING
51	860201433	0859-330 SUPPORT RING
52	860201403	8072-148 INNER HEXAGON SCREW
53	860201402	THROTTLE VALVES
54	860201401	CHECK VALVE
55	860201400	SPRING
56	860200309	O-RING
57	860201399	0824-050 COVER
58	860201398	3508-270 SHOCK INSULATOR
44	860201404	CDWASHER
52	860201403	8072-148 INNER HEXAGON SCREW
59	860201406	O-RING
60	860201417	0859-228 SUPPORT RING
61	860201434	0824-052 COVER
62	860200314	8202-011 ORING
63	860201471	3526-809 COVER
64	860201482	0859-233 SUPPORT RING
65	860201483	0207-005 ORING
66	860201494	3537-326 OVERFLOW VALVE ASSEMBLY
67	860201474	3593-019 GUIDE SPRING
68	860201475	3590-230 SPRING
69	860201476	3513-256 CHECK VALVE
70	860201477	0207-007 ORING
71	860201478	0859-250 SUPPORT RING
72	860201479	3517-126 BASE
73	860201480	3526-821 PLUG
74	860201481	3537-286 OVERFLOW VALVE ASSEMBLY
75	860201484	0879-060 BLIND FLANGE
76	860201485	0201-112 ORING
77	860201486	0576-034 INNER HEXAGON SCREW
78	860169198	COVER
79	860201490	0859-251 SUPPORT RING
80	860201491	O-RING
81	860169103	CHECK VALVE
82	860201493	3590-358 SPRING
83	860201495	3526-649 PLUG
84	860201496	3526-550 COVER
85	860200323	0859-181 SUPPORT RING
86	860200196	O-RING
87	860201497	3590-297 SPRING
88	860201498	3513-367 CHECK VALVE
89	860201502	3590-613 SPRING
90	860201503	3610-536 SPOOLCB
91	860201504	3504-094 END COVER COMPONENT
92	860201505	0631-107 WASHER
93	860200256	8202-007 ORING
94	860201506	8200-054 ORING
95	860201507	3590-409 SPRING
96	860201508	3513-254 POPPET VALVE
97	860201509	3504-093 END COVER COMPONENT
98	860201510	3504-100 END COVER COMPONENT
99	860201511	INNER HEXAGON SCREW
100	860169139	SPOOL
101	860201513	0200-109 ORING
102	860201514	0859-199 SUPPORT RING
103	860201515	O-RING
104	860201516	3526-739 COVER
105	860169113	COVER
106	860201521	MAIN RELIEF VALVE
107	860201523	O-RING
108	860201407	0859-206 SUPPORT RING
109	860201408	8202-020 ORING
110	860201409	3590-288SPRING
111	860201410	3513-251 CHECK VALVE
112	860201517	0859-311 SUPPORT RING
113	860201518	8202-018 ORING
114	860201519	3516-342 SLEEVE PIPE
115	860201520	8202-024 ORING
116	860201416	3526-481 COVER
117	860201472	3513-365 CHECK VALVE
118	860201418	3513-250 CHECK VALVE
119	860201473	3526-483 COVER
120	860201405	3526-726 COVER
121	860201488	3513-252 CHECK VALVE
122	860201499	3526-730 COVER

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