—— Product Description ——
Model Number: 90343
Valve Type: Manual, Monoblock Directional Control Valve
Actuation: Manual Lever Operation
Function: Typically 4-way / 3-position (Spring return to center or detented positions as required)
Ports: Work ports, Pressure port, Tank return port
Pressure Rating: High-Pressure Capability (e.g., up to 350 Bar), suitable for standard tamping machine hydraulic systems.
Body: High-Strength Carbon Steel or Ductile Iron
Spool: Hardened and Ground Steel for wear resistance
Seals: High-performance HNBR or Polyurethane seals, compatible with standard hydraulic oils and resistant to weathering.
Mounting: ISO 4401 (CETOP) standard interface for easy integration.
Operating Temperature Range: -20°C to +80°C (-4°F to +176°F)
Application: Specifically designed for railway maintenance machinery, especially tamping machines.
—— Product Advantages ——
Exceptional Durability & Reliability: Engineered with premium materials and robust construction to withstand the intense vibrations and shocks inherent in tamping operations, ensuring a long service life and reduced downtime.
Precise Control: Provides operators with direct and responsive tactile feedback for accurate control over tamping tool movements, which is crucial for achieving optimal track geometry and alignment.
Simple & Fail-Safe Operation: As a manually operated valve, it requires no electrical power or complex electronics, making it inherently simple, reliable, and less prone to failure. This simplicity is a key safety feature in critical railway applications.
Easy Maintenance & Serviceability: Designed with service in mind. The standardized mounting interface and readily available seal kits allow for quick replacement and easy maintenance in the field, minimizing machine downtime.
Optimized for Harsh Environments: The selected seal materials and corrosion-resistant treatments protect the valve from moisture, dust, and extreme temperature fluctuations commonly found on railway worksites.
Founded in 1999, QM Track Equipment Co., Ltd., a subsidiary of the Jinruida Group, has been a pioneer in the global railway maintenance industry. As a certified high-tech enterprise, we have built a robust platform specializing in fluid technology, system transmission, and precision mechanical manufacturing. Our solutions are widely applied across railway engineering machinery, high-speed trains, subways, heavy-duty locomotives, and intelligent control systems.
Over the years, we have upheld the principle of "integrity and mutual benefit," delivering high-quality products and tailored solutions to clients worldwide. Our services now extend to over 20 countries, including the UAE, Egypt, Brazil, Thailand, Vietnam, Malaysia, and India. Beyond being a leading manufacturer and supplier of core components for heavy railway maintenance machinery, we are at the forefront of providing intelligent equipment solutions and contributing to the development of industry standards.
Contact us today to build the future of railway maintenance together!
—— Inventory & Delivery ——
—— Shipping & Packaging ——
—— FAQ ——
Who are we?
We are QM Track, a trusted provider of railway maintenance solutions, specializing in advanced track maintenance equipment and customizable tamping units.
How can we guarantee quality?
We ensure quality through rigorous inspections, advanced manufacturing processes, and adherence to international railway standards. Every product undergoes thorough testing to meet your expectations.
What can you buy from us?
We offer a wide range of products, including tamping machine spare parts, ballast tamping equipment, railway tamping mechanisms, and track maintenance devices.
Why should you buy from us, not from other suppliers?
We provide high-quality, eco-friendly products with extensive customization options and dedicated support. Our focus on tailored solutions and sustainable innovation sets us apart.
What services can we provide?
We offer product customization, technical support, installation guidance, and after-sales services to ensure your railway maintenance needs are met effectively.
