Chongqing Hengtairail Equipment Co.,Ltd.
                                                                                                           
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China Hengtairail Railway Diesel Locomotive Brake Valve JZ-7 Parts 600kPa for Passenger and Freight Trains for sale

Hengtairail Railway Diesel Locomotive Brake Valve JZ-7 Parts 600kPa for Passenger and Freight Trains

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Product Description
Railway Diesel Locomotive Brake Valve JZ-7
The JZ-7 brake valve is engineered for versatile application across both passenger and freight locomotives, featuring graduated release capability for passenger trains and direct release functionality for freight operations.
Technical Specifications
Product Name Railway Brake Valve JZ-7 Parts
Ambient Temperature -40℃ to 50℃
Train Pipe Constant Pressure 500kPa, 600kPa
Application Railway Diesel Locomotive
Package Export Package
Performance Characteristics
Automatic Braking System
  • Initial charge time for pressure reservoir: 50-60 seconds (0 to 460 kPa)
  • Local reduction activation: Before brake pipe pressure drops to 20 kPa
  • Graduated release cycles: Minimum 5 times at passenger train position
  • Pressure reduction time: 5-7 seconds (500kPa to 360kPa)
  • Maximum brake cylinder pressure: 340-360 kPa in full service application
Independent Braking Performance
  • Maximum brake cylinder pressure: 300 kPa
  • Pressure build-up time: Within 3 seconds (0 to 280 kPa)
  • Pressure reduction time: Within 4 seconds (300 kPa to 35 kPa)
System Components
The JZ-7 brake system comprises automatic brake valve (large brake), separate brake valve (small brake), relay valve, distribution valve, and application valve.
Manufacturer Profile
Hengtairail Equipment Co., Ltd., established in 1999 by former China Railway Administration engineer Mr. Wei, operates under ISO9001:2015 certification and meets technical standards from CRCC, AAR, and UIC. The company specializes in rail vehicle components including casting, forging, and machining products.
Application Visualization
Railway diesel locomotive brake valve JZ-7 installation and application diagram
Related Products
  • MUD distributor valve
  • Brake cylinder
  • RGC-1A Sensor Valve
  • Auxiliary reservoir
  • Air brake hose assembly
  • Throttle
  • Slack Adjuster
  • Caboose Valve
  • Angle cock
Hengtairail railway brake components and related product line
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Chongqing Hengtairail Equipment Co.,Ltd.
Location A1-3-1, Xinrui Zone, No. 25-1-3, Keyuan 1st Street, Jiulongpo District, Chongqing
Contact Person Wei Dong

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