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DTVI-2 Metro Fastening System
Product Introduction
Type DTVI-2 Track Fastening Systems are composed of iron base plates, tension clamps, rubber rail plates I, rubber rail plates II, gauge insulators, screw spikes, heavy spring washers, and nylon sleeves. In addition, in order to adjust the height of the rail, the height adjustment pad is necessary.
components of DTVI-2 Rail Fastening Systems
Tension clamps：There are two types of tension clamps, namely the joint D1 rail clips used in the joint part and the intermediate D1 rail clips used in the middle part, both of which have a diameter of 18mm.
Rubber rail pad I：The rubber rail pad I is an under-rail backing plate placed under the steel rail, with a thickness of 12mm.
Rubber rail pad II：The rubber rail pad II is a backing plate placed under the iron backing plate, with a thickness of 12mm.
Gauge Insulators：There are two types of gauge insulators, namely the joint gauge pads used in the joint part and the intermediate gauge pads used in the middle part. At the same time, the gauge pads required to adjust the gauge are divided into No. 6, No. 8, No. 10, and No. 12.
Nylon dowels：The nylon dowels are embedded in the sleeper in advance, and the embedding accuracy should meet the requirements. After the dowel is buried, it should be covered with a plastic (or other material) cover to prevent rainwater and mud from entering.
Height adjustment pad：The height-adjusting pad is divided into four specifications: 2mm, 3mm, 5mm, and 10mm according to the thickness.
DTVI-2 Railway Fastening System Application
Mainline and Branch Core Sections
The system is deployed in general vibration reduction zones of metro mainlinesand branch lines. Its two-stage elastic structure optimally balances vibration damping with operational efficiency. With ±10mm gauge adjustability and 15mm vertical adjustment capacity, it accommodates subgrade settlement while maintaining precise track geometry parameters.
Depot Critical Tracks
On test tracks, the system withstands frequent start-stop impacts during train testing, with Type I spring clips ensuring stable clamping force. In maintenance depots, its insulation resistance (>10⁸Ω) prevents stray current interference with sensitive equipment, guaranteeing operational safety.
Transition Sections
The solution adapts perfectly to interface areas between underground and surface lines, meeting moderate vibration reduction requirements while maintaining cost-effectiveness as a reliable connector between different track types.
GNEE RAIL is a manufacturer specializing in the production of railway fasteners, providing a full range of products such as spring clips, bolts, gaskets, etc. that meet international standards. The factory is equipped with complete production equipment and testing instruments, and strictly implements the quality management system to ensure stable and reliable product performance. With many years of industry experience, we are able to provide standard products or customized services according to customer needs and guarantee on-time delivery. Our products have been exported to many countries and regions, and have been recognized by customers for their excellent quality and professional services. We look forward to establishing a long-term cooperative relationship with you and providing reliable fastening solutions for your railway projects.
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