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Welding ends

MATERIAL SPECIFICATION (climate class N)

  • Body: carbon steel 20 (1.1151)
  • Stem: stainless steel (AISI 420)
  • Ball: stainless steel
    DN 15-32: AISI 420 DN 40-65: AISI 304
    DN 80-300: AISI 409
  • Stem sealing: FVMQ
  • Stem sealing/washer: reinforced PTFE
  • Ball sealing: reinforced PTFE with additional sealing made of FVMQ

OPERATION

Connection dimensions acc. to (EN)DIN/GOST on request
DN 15-100: lever – galvanized carbon steel with polymer end
DN 125-300: manual gearbox with worm gear recommended

Welding ends

KV values

VALUE DN 25 DN 32 DN 40 DN 50 DN 65 DN 80 DN 100
1 - 0,39 0,60 1,26 2,52 3,42 6,48
2 0,49 0,83 1,48 2,70 4,75 7,31 12,64
3 1,36 1,44 2,70 4,39 7,92 13,14 20,09
4 2,00 2,30 3,96 6,84 11,63 19,08 28,84
5 3,00 3,42 5,98 9,83 16,67 27,54 42,84
6 4,50 5,11 8,57 11,04 25,20 38,88 60,84
7 6,70 7,27 12,31 19,80 33,84 53,64 90,00
8 9,30 10,08 17,64 27,00 45,72 75,60  136,80 
9 12,65 13,14  22,57  34,20  61,20  108,00   216,00 

Weight and overall dimensions are equal to shut off valves with corresponding diameter