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YA00031373 UA36-204 Hitachi ZX870-3 Excavator Control Valve Hydraulic Valve Assembly

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YA00031373 UA36-204 Hitachi ZX870-3 Excavator Control Valve Hydraulic Valve Assembly

YA00031373 UA36-204 Hitachi ZX870-3 Excavator Control Valve Hydraulic Valve Assembly
YA00031373 UA36-204 Hitachi ZX870-3 Excavator Control Valve Hydraulic Valve Assembly YA00031373 UA36-204 Hitachi ZX870-3 Excavator Control Valve Hydraulic Valve Assembly YA00031373 UA36-204 Hitachi ZX870-3 Excavator Control Valve Hydraulic Valve Assembly YA00031373 UA36-204 Hitachi ZX870-3 Excavator Control Valve Hydraulic Valve Assembly YA00031373 UA36-204 Hitachi ZX870-3 Excavator Control Valve Hydraulic Valve Assembly

Large Image :  YA00031373 UA36-204 Hitachi ZX870-3 Excavator Control Valve Hydraulic Valve Assembly

Product Details:
Place of Origin: Guangdong, China
Brand Name: YFM FK
Certification: ISO 9001:2015
Model Number: YA00031373
Payment & Shipping Terms:
Minimum Order Quantity: 1 Piece
Price: USD 2500-4500 / Piece
Packaging Details: Steel pallet with custom foam cushioning, export-grade wooden crate
Delivery Time: 7-15 working days
Payment Terms: T/T,L/C,Western Union
Supply Ability: 100 Pieces per Month
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YA00031373 UA36-204 Hitachi ZX870-3 Excavator Control Valve Hydraulic Valve Assembly

Description
Excavator Model: Hitachi ZX870-3 Part Number: YA00031373 / UA36-204
Valve Type: Main Control Distributor Valve Number Of Spools: 6-Spool Assembly
Max Pressure: 350 Bar Max Flow Rate: 500 L/min
Mounting Type: Bolt-On Flange Mount Body Material: High-Strength Cast Iron
Weight: 180 Kg
Highlight:

YA00031373 Excavator Control Valve

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UA36-204 Excavator Control Valve

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ZX870-3 hydraulic control valve assembly

YA00031373 UA36-204 Hitachi ZX870-3 Excavator Main Control Valve — Distributor Hydraulic Valve Assembly

The YA00031373 / UA36-204 Main Control Valve is a precision-engineered multi-spool hydraulic distributor valve designed for the Hitachi ZX870-3 large crawler excavator. This control valve assembly regulates hydraulic oil flow to the boom, arm, bucket, swing, and travel circuits, delivering responsive and precise control under demanding job site conditions.

Key Features & Advantages

  • Multi-Spool Hydraulic Distribution: Integrated multi-section spool design independently controls boom, arm, bucket, swing motor, and travel motor circuits for smooth simultaneous operation.
  • OEM Specification Compatibility: Direct replacement for Hitachi ZX870-3 original main control valve, matching all hydraulic port connections, mounting bolt patterns, and pilot pressure specifications.
  • Precision Machined Spool & Body: Heat-treated alloy steel spools with hard chrome plating paired with precision-honed cast iron valve body for minimal internal leakage and long service life.
  • Integrated Relief Valve Protection: Main relief valve and port relief valves built into the assembly protect hydraulic circuits from over-pressure damage during heavy excavation and lifting operations.
  • Load-Sensing Flow Control: Advanced load-sensing compensator spools adjust flow distribution based on real-time load demand, reducing energy waste and improving fuel efficiency.
  • Heavy-Duty Sealing System: High-grade HNBR and PTFE seals throughout ensure reliable operation at high pressure and temperature, resistant to hydraulic oil degradation.

Technical Specifications

Excavator Model Hitachi ZX870-3
Part Number YA00031373 / UA36-204
Valve Type Main Control Distributor Valve (Multi-Spool)
Number of Spools 6-Spool Assembly
Max Operating Pressure 350 Bar (35 MPa)
Max Flow Rate 500 L/min
Pilot Pressure 35-42 Bar
Mounting Type Bolt-On Flange Mount
Body Material High-Strength Cast Iron
Seal Material HNBR / PTFE
Net Weight Approx. 180 kg

Compatible Excavator Models

  • Hitachi ZX870-3
  • Hitachi ZX870-3G (select variants)
  • Hitachi ZX850-3 (select variants)

Packaging & Delivery

Each control valve assembly is securely mounted on a reinforced steel pallet with custom-fit foam cushioning, enclosed in a moisture-proof export-grade wooden crate. All hydraulic ports are sealed with protective caps to prevent contamination during transit. Standard delivery within 7-15 working days after order confirmation.

Company Profile

ABOUT US

Company Profile

Guangzhou Xingfan Precision Oil Pressure Co., Ltd. focuses on the after-market hydraulic maintenance and replacement of construction machinery including excavator, rotary drilling rig, pile driver, concrete mixer, delivery pump truck, crane, harvester, and other equipment. Including hydraulic pump, traveling motor, rotary motor, distribution valve, multi-way valve, gear pump, operating handle, walking foot valve, etc.

Company Facility

Production Line

Factory Display

Factory Workshop

Assembly Line

Warehouse

Factory Overview

Our manufacturing facility spans over 5,000 square meters and is equipped with advanced CNC machining centers, hydraulic test benches, and precision honing equipment. With an annual production capacity of 2,000+ hydraulic valve units, we serve excavator owners, rental fleets, and equipment dealers across Southeast Asia, the Middle East, South America, and Africa.

  • Production Workshop: Dedicated assembly line for excavator hydraulic valves with clean-room environment for precision assembly and testing.
  • Quality Control: Each control valve undergoes full hydraulic bench testing including pressure, flow rate, and leakage verification before shipment. ISO 9001:2015 certified.
  • R&D Team: In-house engineering team with 10+ years of experience in hydraulic system design and development.
  • Inventory: Well-stocked warehouse with commonly requested valve models ready for immediate dispatch.

Frequently Asked Questions

Q1: Is this an original equipment specification part?

A: This is a high-quality aftermarket replacement manufactured to OEM specifications. It matches all original hydraulic port connections, mounting dimensions, and performance parameters. For customers requiring original equipment parts, please contact us separately.

Q2: What is the warranty period?

A: We provide a 12-month warranty from the date of shipment, covering manufacturing defects under normal operating conditions. Warranty does not cover damage caused by improper installation, contaminated hydraulic oil, or operation beyond rated specifications.

Q3: Can you supply control valves for other excavator models?

A: Yes! Our engineering team can design and produce main control valves for most mainstream excavator brands. Please provide your excavator model and part number for a quotation.

Q4: What is the typical lead time for bulk orders?

A: Sample orders (1-2 units) ship within 7-15 working days. Bulk orders of 10+ units typically require 25-35 working days depending on the model and quantity. We will confirm the exact delivery schedule upon order confirmation.

Q5: Do you accept sample orders for testing?

A: Absolutely. We encourage customers to order a sample unit first to evaluate quality and fitment before placing a bulk order. Minimum order quantity for sample testing is 1 piece.

Contact Us for More Information

We offer competitive pricing, technical support, and fast worldwide shipping. For bulk orders, OEM service, or custom specifications, please contact our sales team today.

Tag:

excavator main control valve,

Excavator Control Valve,

main control valve

Contact Details
Guangzhou Xingfan Precision Hydraulic Co., Ltd.

Contact Person: Mr. Qu

Tel: +86 15218836774

Fax: 86--15622228066

Send your inquiry directly to us (0 / 3000)

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