Competitor Hydraulic Parts 702-21-57400 7022157400 Pilot Valve for D65/D75 Series

• After-sales Service: 6 Months
• Warranty: 1 Year
• Type: Valve
• Model NO.: 702-21-57400
• Application: Excavator
• Certification: CE, ISO9001: 2000
• Condition: New
• Pilot Pressure Inlet: 0-50 Bar
• Max Main Circuit Pressure: ≤350 Bar
• Rated Flow: 15-25 L/Min
• Response Time: ≤40 Ms
• Transport Package: Wooden Case
• Specification: standard
• Trademark: Koma*Tsu
• Origin: Japan
• HS Code: 8413503190
• Production Capacity: 5000pieces/Years

Product Description

Product Parameters

Part Number	702-21-57400
Type	Hydraulic Pilot Control Valve
Application	- Target Equipment: K-omatsu D65/D75 Series Bulldozers, or PC200/PC300 Excavators - Controls pilot pressure for work equipment
Function	- Converts operator joystick/lever motion into proportional hydraulic pilot signals - Modulates main control valves for precise actuation
Hydraulic Parameters	- Pilot Pressure Inlet: 0-50 bar (0-725 PSI) - Max Main Circuit Pressure: ≤350 bar (5,076 PSI) - Rated Flow: 15-25 L/min (4-6.6 GPM) (application dependent) - Response Time: ≤40 ms (linear signal transmission)
Port Connections	- Pilot Inlet: 2x 1/8" NPT (female) or SAE 4 (1/4"-28 UNF) - Control Outputs: 2x SAE 8 (1/2"-20 UNF) O-Ring Boss (for main valve actuation) - Tank Return: 1x 3/8" NPT (female)
Control Mechanism	- Mechanical-hydraulic linkage with spring-centered neutral position - Spool stroke: 4-6 mm (proportional to input displacement)
Materials	- Body: Aluminum alloy (ADC6, lightweight and corrosion-resistant) - Spool: Hardened carbon steel (Chrome-plated, HRC 58-62) - Seals: FKM (Vit-on, compatible with ISO VG 32/46 hydraulic oil, -20°C to +120°C)
Mounting	- Bolt-on design for pilot valve manifold (ISO 4401-compliant 4-bolt pattern: 60 mm × 80 mm, M6 threads) - Weight: ~1.5 kg (3.3 lb) (including mounting bracket)
Filtration Requirement	- Oil cleanliness: ISO 4406: 18/16/13 (≤25 μm particles) - Requires upstream pilot filter (10 μm absolute rating, Kom-atsu part: 703-21-001XX)
Design Features	- Low hysteresis (≤3% of full stroke) for precise control - Built-in pressure limiter (55 bar max pilot pressure to prevent overload) - Neutral leakage: ≤15 mL/min @ 50 bar inlet pressure
Temperature Range	- Ambient: -25°C to +85°C - Hydraulic Oil: -20°C to +110°C (continuous operation)
Compliance	- Kom-atsu KES 07-2019 (hydraulic component safety standard) - ISO 6403 (valve mounting surface dimensions)

Product Photos

ABOUT  US
 

JiNing Competitor Hydraulic co, Ltd. ,specializing in manufacturing cycloidal hydraulic motor and hydraulic products technology development, manufacturing and marketing of specialized enterprises. The company is committed to the development of high-tech design and manufacturing technology, import a number of large-scale CNC machining centers, CNC forming grinding machines, CNC internal grinding machines, etc., with a professional technical team and goods and technology import and export rights,.

The company is committed to the development of high-tech and manufacturing technology. We have outstanding experience in productdesign, manufacturing processes and quality assurance.0rbit motors mainly used in injection molding machines, fishery machinery,construction machinery, oil driling, machinery, mining machinery, agricultura machines and garden machines

Dur products have been exported to countries such as the United States Germany,Brazil,Canada,india, Turkey, Poland Thailand etc. Weaim to become a world-class manufacturer of hydraulic products, 0ur etemal pursuit and objectives is to improve the performance of our productsas a starting point and to provide the best products and service to our customers.
 

 

Our Advantage
1.Quick response within 12 hours 
2.Accept small order(MOQ:1pcs) 
3.Custom service.Unusual packaging,standard packing or as customer required 
4.Excellent after-sales service 
5.Strict quality control system.100% factory testing and inspection personnel in accordance with international standards for the high-frequency sampling, to ensure the quality of products manufactured
6.Accept ODM&OEM

Packing&Delivery&After-sale

1.Standard wooden case or cartonbox
2.Safety for long-distance transportation
3.All of the productions will be checked carefully before delivery

Pre-sales Service
1. Inquiry and consulting support
2. Sample testing support
3. Recommend the most suitable machine according to customer's purpose
4. Factory visiting welcomed

After-sales Service
1. Training how to install the machine
2. Training how to use the machine
3. Warranty 1 year
4. Engineers available to service machinery oversea
 

FAQ
 Q:1.What's your main application?
  --Hydraulic Orbit Motors and pumps
  --Excavator parts
 Q:2.What is the MOQ? --MOQ:1pcs.
 Q:3.How long is your delivery time?
 --Generally it is 2-3 days if the goods are in stock. or it is 7-15 days .if the goods are not in stock, it is according to quantity.
 Q:5.What payment method is accepted?
 --T/T,L/C,Paypal,Western union,Trade assurance,VISA
Q:6.How to Place your order 

1).Tell us Model number ,quantity and other special requirements.

2).Proforma Invoice will be made and send for your approval.
3).Productions will be arranged upon receipt of your approval and payment or deposit.
4).Goods will be delivered as stated on the proforma invoice.

 

Certifications

Our company has passed ISO9001:2015 quality system certification and ISO14000 environmental management system certification, based on quality system, to provide customers with first-class products and services.

 

Main Products

Main products are hydraulic orbit motors, hydraulic winches, hydraulic brakes, hydraulic steelhole punchers, hydraulic steerings, etc.

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If you need other models of products, please feel free to contact me!