Gas tank wagon set, H0, ZAG 620, EVA 538 857 + BP 581 709, DB, Era III, prototype condition around 1963, gray, DC

Prototype
To supply companies and households with liquefied gas for heating, various companies procured pressurized gas tank wagons. Since gas pipelines were not widely available until the 1980s, gas storage facilities were preferred in rural areas, which were served by rail and delivered liquefied gases such as propane or butane to households by truck. In groups of wagons or as individual wagons, the pressurized gas tank wagons, initially marked with a yellow band and later with an orange band from the late 1960s, can be found in many freight trains on main and branch lines. Many companies in the chemical industry also required pressurized gas tank wagons for shipping their products, and thus the wagons often displayed large logos of their owners or lessees. In the early 1960s, gray-white or pebble gray increasingly replaced the previously common iron gray. Most four-axle designs featured the so-called bottom discharge, meaning the flanges and valves are located at the bottom of the tank.

The design code Zag indicates that the vehicle is a tank wagon (Z) with four or more wheelsets (a) for compressed, liquefied, or dissolved gases under pressure (g).

The Pullman model represents a four-axle 620hl pressurized gas wagon from the Uerdingen wagon factory, which was primarily supplied to wagon lessors such as the Eisenbahn Verkehrsmittel A.G. EVA. The manufacturer was a partner in EVA, which later merged into VTG. Characteristic of the Uerdingen wagons with the mounted sunshade roof was the relatively large roof overhang with the radially extending spacer plates. The central manhole on the non-handbrake end was common for new builds until about the mid-1960s.

Model

• H0 model of a pressurized gas tank wagon Zag with a capacity of 620 hl
• Perforated etched steps and running boards
• Separately applied details of the braking system
• Freestanding grab bars
• Etched nameplates with delicate mounting struts
• Freestanding coupling valves and shut-off devices
• Multi-part bogies of the Minden Dorstfeld design with freestanding rectangular hooks
• Profiled wheel discs on both sides
• Hook coupling in a guided standard pocket
• Optional AC wheelset available under item no. 41201
• Minimum radius = 360 mm
• Length over buffers = 145.7 mm