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EX450 Hydraulic Main Control Valve Assy for Hitachi Excavator Spare Parts 4434686 4632973 Main Control Valve OEM

Produits

pompe hydraulique d'excavatrice

pièces de pompe hydraulique d'excavatrice

boîte de vitesse d'oscillation

Soupape de commande d'excavatrice

pièces finales d'entraînement d'excavatrice

Joints du centre de l'excavateur

Soupape de sécurité d'excavatrice

Excavatrice Hydraulic Cylinder

Assemblée de moteur diesel

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kitty@belparts-china.com

+86 18902206952

Contactez-nous maintenant

EX450 Hydraulic Main Control Valve Assy for Hitachi Excavator Spare Parts 4434686 4632973 Main Control Valve OEM

Nombre De Pièces:	1 pièces
Prix:	Negotiated price
Emballage Standard:	CA1SE en bois
Période De Livraison:	1 ~ 7 jours
Méthode De Paiement:	T / t, assurance commerciale, paypal
Capacité D'approvisionnement:	1000 pièces

Des informations détaillées

Description du produit

Des informations détaillées

Lieu d'origine

Chine

Nom de marque

Belparts

Numéro de modèle

EX450

Modèle:

EX450

Numéro de pièce:

4434686 4632973

Nom du produit:

Ensemble de soupape de commande

Application:

200 pièces

Condition:

Marque originale remise à neuf

Pouvoir:

Pièces hydrauliques

Garantie:

6 mois

Mettre en évidence:

Hitachi excavator hydraulic control valve

EX450 main control valve assy

OEM excavator spare parts valve

Description du produit

EX450 Hydraulic Main Control Valve Assy for Hitachi Excavator Spare Parts 4434686 4632973 Main Control Valve

EX450 Hydraulic Main Control Valve Assy for Hitachi Excavator Spare Parts 4434686 4632973 Main Control Valve

Product Overview

The control valve (also known as the main control valve or multi-valve block) is the central hydraulic control component in excavators. It consists of multiple parallel spools that precisely distribute high-pressure oil from the pump to actuators (e.g., hydraulic cylinders, motors) based on operational demands, enabling coordinated machine movements.

Specifications

Category	Excavator Hydraulic Parts
Model	EX450
Part Number	4434686 4632973
Package	Wooden Box
Application	Excavator
Product Attributes	Excavator Parts

Working Principle

Flow Distribution: Operator joystick or electronic signals shift valve spools, adjusting port openings to control oil flow rate and direction to each actuator.
Pressure Regulation: Integrated pressure compensators and overload relief valves maintain stable flow under varying loads while preventing pressure spikes.
Multi-circuit Coordination: Parallel spool design allows simultaneous operation of multiple actuators (e.g., boom lifting + arm retraction), with the system automatically splitting pump flow.

Product Images

#	Part No.	Description	Qty
	4434686	VALVE; CONTROL (1/5)	1
1	----	. HOUSING	1
2	0818001	. PLUNGER	1
3	0818002	. PLUNGER	1
4	0818003	. PLUNGER	1
5	0818004	. PLUNGER	1
6	0622843	. VALVE	1
7	0622817	. CAP	1
8	0810405	. SPRING	1
9	4088425	. O-RING	4
10	0189803	. CHIP	2
11	0622816	. SPACER	1
12	0810406	. SPOOL	1
15	4469304	. VALVE; RELIEF	1
17	0622829	. CHECK	2
18	0622827	. SPRING	2
19	0622825	. CAP	1
20	0223104	. RING; BACK-UP	1
28	4506420	. O-RING	1
29	4027959	. RING; BACK-UP	6
30	0646203	. PLUG	1
31	0624703	. O-RING	1
32	0624702	. CAP	1
33	0622803	. COVER	3
34	0101616	. O-RING	8
35	0622805	. SLEEVE	4
36	0622806	. GUIDE	8
37	0622807	. SPIRNG	4
38	0622808	. CAP	4
39	0809705	. COVER	1
41	0622810	. CAP	1
42	957366	. O-RING	2
43	M341230	. BOLT; SOCKET	16
44	0622875	. PLUG	1
45	0818005	. COVER	1
46	0622877	. CAP	1
47	0166805	. RING; BACK-UP	1
48	4506412	. O-RING	1
66	4153108	. O-RING	5
68	0212416	. O-RING	1
72	4153098	. O-RING	1
73	4506418	. O-RING	1
74	0622871	. SEAT	1
75	0810407	. CAP	1
76	0622873	. BALL	1
77	4113187	. RING; BACK-UP	1
78	966689	. O-RING	1
105	0809734	. POPPET	1
106	0809735	. RING; BACK-UP	2
107	0809736	. O-RING	1
108	0809737	. SPRING	1
109	0809738	. SLEEVE	1
110	0809739	. O-RING	1
111	0212312	. RING; BACK-UP	1
112	0809740	. CAP	1
113	4153099	. O-RING	5
114	0809708	. SLEEVE	1
115	0809709	. NUT	1
116	0809710	. PISTON	1
117	0809711	. O-RING	1
118	0809712	. SEAT	1
119	0809713	. SPRING	1
120	0809714	. POPPET	1
121	0809715	. SLEEVE	1
122	0809716	. SCREW	1
123	0809717	. NUT	1
124	0809718	. CAP	1
125	0135206	. SPRING	1
126	0809719	. POPPET	1
127	4040813	. RING; BACK-UP	1
128	0809720	. O-RING	1
129	0809729	. PISTON	4
130	0809728	. POPPET	4
131	0809727	. SPRING	4
132	0809726	. O-RING	4
133	0809725	. RING; BACK-UP	8
134	0809724	. SPRING	4
135	0809723	. SLEEVE	4
136	0809722	. SEAT	4
137	0809721	. NUT	4
138	0809733	. POPPET	4
139	0809732	. SPRING	4
140	0809731	. O-RING	4
141	4153089	. O-RING	4
142	0809730	. SCREW	4
250	4469298	. VALVE; RELIEF	4

Our Advantages

Strong Part Number Database: If you can provide the right model and part number, we can supply the right product.
Professional and Experienced Salesperson: Our founder has been in this field for more than 7 years, with rich experiences.
Strict and Complete Company Rules: We will try our best to meet customer's delivery time. Before delivery, we must verify the part number or pictures of products one by one, to ensure customers receive high-quality and right-quantity goods.
Good Management System: No matter how big or small the order, as long as customers place the order, we will provide exporting service free of charge.
Good Service Attitude: If the customer has any questions about the product, we will help solve the problem immediately. As long as customers' requirements are reasonable, we will endeavor to make them satisfied.

Les étiquettes:

Pièces hydrauliques d'excavatrice,

pièces de rechange d'excavatrice,

Pièces de matériel de construction

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DéTAILS DES PRODUITS

Produits

pompe hydraulique d'excavatrice

pièces de pompe hydraulique d'excavatrice

Assy de moteur de voyage

Excavatrice Swing Motor

boîte de vitesse d'oscillation

Soupape de commande d'excavatrice

Boîte de vitesse de voyage

pièces finales d'entraînement d'excavatrice

Joints du centre de l'excavateur

Gear Pompe hydraulique

Moteur de fan hydraulique

pièces détachées excavatrice

Contrôleur d'excavatrice

Moniteur d'excavatrice

Soupape de sécurité d'excavatrice

Excavatrice Hydraulic Cylinder

Assemblée de moteur diesel

EX450 Hydraulic Main Control Valve Assy for Hitachi Excavator Spare Parts 4434686 4632973 Main Control Valve OEM

Nombre De Pièces:	1 pièces
Prix:	Negotiated price
Emballage Standard:	CA1SE en bois
Période De Livraison:	1 ~ 7 jours
Méthode De Paiement:	T / t, assurance commerciale, paypal
Capacité D'approvisionnement:	1000 pièces

Des informations détaillées

Description du produit

Des informations détaillées

Lieu d'origine

Chine

Nom de marque

Belparts

Numéro de modèle

EX450

Modèle:

EX450

Numéro de pièce:

4434686 4632973

Nom du produit:

Ensemble de soupape de commande

Application:

200 pièces

Condition:

Marque originale remise à neuf

Pouvoir:

Pièces hydrauliques

Garantie:

6 mois

Quantité de commande min:

1 pièces

Prix:

Negotiated price

Détails d'emballage:

CA1SE en bois

Délai de livraison:

1 ~ 7 jours

Conditions de paiement:

T / t, assurance commerciale, paypal

Capacité d'approvisionnement:

1000 pièces

Mettre en évidence

Hitachi excavator hydraulic control valve

EX450 main control valve assy

OEM excavator spare parts valve

Description du produit

EX450 Hydraulic Main Control Valve Assy for Hitachi Excavator Spare Parts 4434686 4632973 Main Control Valve

EX450 Hydraulic Main Control Valve Assy for Hitachi Excavator Spare Parts 4434686 4632973 Main Control Valve

Product Overview

Specifications

Category	Excavator Hydraulic Parts
Model	EX450
Part Number	4434686 4632973
Package	Wooden Box
Application	Excavator
Product Attributes	Excavator Parts

Working Principle

Flow Distribution: Operator joystick or electronic signals shift valve spools, adjusting port openings to control oil flow rate and direction to each actuator.
Pressure Regulation: Integrated pressure compensators and overload relief valves maintain stable flow under varying loads while preventing pressure spikes.
Multi-circuit Coordination: Parallel spool design allows simultaneous operation of multiple actuators (e.g., boom lifting + arm retraction), with the system automatically splitting pump flow.

Product Images

#	Part No.	Description	Qty
	4434686	VALVE; CONTROL (1/5)	1
1	----	. HOUSING	1
2	0818001	. PLUNGER	1
3	0818002	. PLUNGER	1
4	0818003	. PLUNGER	1
5	0818004	. PLUNGER	1
6	0622843	. VALVE	1
7	0622817	. CAP	1
8	0810405	. SPRING	1
9	4088425	. O-RING	4
10	0189803	. CHIP	2
11	0622816	. SPACER	1
12	0810406	. SPOOL	1
15	4469304	. VALVE; RELIEF	1
17	0622829	. CHECK	2
18	0622827	. SPRING	2
19	0622825	. CAP	1
20	0223104	. RING; BACK-UP	1
28	4506420	. O-RING	1
29	4027959	. RING; BACK-UP	6
30	0646203	. PLUG	1
31	0624703	. O-RING	1
32	0624702	. CAP	1
33	0622803	. COVER	3
34	0101616	. O-RING	8
35	0622805	. SLEEVE	4
36	0622806	. GUIDE	8
37	0622807	. SPIRNG	4
38	0622808	. CAP	4
39	0809705	. COVER	1
41	0622810	. CAP	1
42	957366	. O-RING	2
43	M341230	. BOLT; SOCKET	16
44	0622875	. PLUG	1
45	0818005	. COVER	1
46	0622877	. CAP	1
47	0166805	. RING; BACK-UP	1
48	4506412	. O-RING	1
66	4153108	. O-RING	5
68	0212416	. O-RING	1
72	4153098	. O-RING	1
73	4506418	. O-RING	1
74	0622871	. SEAT	1
75	0810407	. CAP	1
76	0622873	. BALL	1
77	4113187	. RING; BACK-UP	1
78	966689	. O-RING	1
105	0809734	. POPPET	1
106	0809735	. RING; BACK-UP	2
107	0809736	. O-RING	1
108	0809737	. SPRING	1
109	0809738	. SLEEVE	1
110	0809739	. O-RING	1
111	0212312	. RING; BACK-UP	1
112	0809740	. CAP	1
113	4153099	. O-RING	5
114	0809708	. SLEEVE	1
115	0809709	. NUT	1
116	0809710	. PISTON	1
117	0809711	. O-RING	1
118	0809712	. SEAT	1
119	0809713	. SPRING	1
120	0809714	. POPPET	1
121	0809715	. SLEEVE	1
122	0809716	. SCREW	1
123	0809717	. NUT	1
124	0809718	. CAP	1
125	0135206	. SPRING	1
126	0809719	. POPPET	1
127	4040813	. RING; BACK-UP	1
128	0809720	. O-RING	1
129	0809729	. PISTON	4
130	0809728	. POPPET	4
131	0809727	. SPRING	4
132	0809726	. O-RING	4
133	0809725	. RING; BACK-UP	8
134	0809724	. SPRING	4
135	0809723	. SLEEVE	4
136	0809722	. SEAT	4
137	0809721	. NUT	4
138	0809733	. POPPET	4
139	0809732	. SPRING	4
140	0809731	. O-RING	4
141	4153089	. O-RING	4
142	0809730	. SCREW	4
250	4469298	. VALVE; RELIEF	4

Our Advantages

Strong Part Number Database: If you can provide the right model and part number, we can supply the right product.
Professional and Experienced Salesperson: Our founder has been in this field for more than 7 years, with rich experiences.
Strict and Complete Company Rules: We will try our best to meet customer's delivery time. Before delivery, we must verify the part number or pictures of products one by one, to ensure customers receive high-quality and right-quantity goods.
Good Management System: No matter how big or small the order, as long as customers place the order, we will provide exporting service free of charge.
Good Service Attitude: If the customer has any questions about the product, we will help solve the problem immediately. As long as customers' requirements are reasonable, we will endeavor to make them satisfied.

Les étiquettes: