Views: 71 Author: Site Editor Publish Time: 2020-09-04 Origin: Site
The DIN 11851 union is widely used throughout Europe and incorporates a round slotted nut and a flush fitting lipped seal, as standard. DIN11851 is divided into imperial and metric type. There are two styles of metric which different from welding ends diameter, the smaller one is common use. You can find more information from the below drawings. Althrough their diameter are different, but all of them use the same threads and same nut whatever imperial or metric.
Shuangzhan machinery provide din11851 fittings, incluining ferrules, union parts, elbows, tee with food grade or phramacy finish.
round or hexagon blank nut with chain, seal disc
round or hexagon nut
welding liner-conical type
expanding male and liner
imperial: 1/2”to 4”
male and liner: SS304, SS316L
DIN11853-1 form A
sanitary butterfly valves, ball valves, pressure relief valves, check valves, strainers, tubes, bends, tees, crosses, reducers, spunding valves etc.
all of elbows, tees, crosses, reducers, manifolds and hose barbs etc can be fabricated with din11851 parts.
food industry, sanitary and dairy, phramacy etc.
This article only focus on unions, but you can refer the welding end diameter for ferrules, elbows etc.
2. DIN 11851 METRIC-common type