Ball Valve for Gas, Full Bore, Welding/Threaded Ends


Ball Valve for Gas, Full Bore, Welding/Threaded Ends

K81 121 416/425/440 WKP 2c       welding ends
K81 131 416/425/440 WKP 2g       threaded ends
K81 181 416/425/440 WKP           combination
K81 121 416/425/440 WKP 2cPB  welding ends, for propane-butane

APPLICATION
Gas systems (media of group 1 according to the Directive 97/23 EC - category GDII), natural gas, petrochemical products and oil derivates. For the version WKP 2cPB: propane, calor gas and propane-butane.

TEMPERATURE RANGE
-30°C to +60°C for explosive fluids (natural gas, propane, calor gas, propane-butane, acetylene etc.)
-30°C to +110°C for other fluids (carbon dioxide, hot gases, amonia etc.)

CONNECTION
- welding ends according to CSN EN 12627 PN-H-74307, others according to request
- internal pipe thread according to ISO 228-1
- end for silver soldering of copper pipe

Position Description Material
1. Ball X5CrNi18-10
2. Seat PTFE+20%C
3. Ring X5CrNo18-10
4. Spring 50CrV4
5. Connector Pipe P355N
6. Body P355N
7. Chimney P355N
8. Plug X8CrNiS18-9
9. Lower Ring PTFE+20%C
10. O-Ring VITON
11. Packing PTFE+20%C
12. Gland X20Cr13
13. Lever St3S
14. Screw steel
15. Pin steel
Power industry   Oil and gas   Oil refinery and petrochemical industry   Chemical industry   Water service   Food industry   Metalurgy and cooking plants   Other industry  


Chart of main Dimensions

DN PN dk D s L-2c L-2g L-cgw L-ccu L-2cPB I H k Kvs kg 2c kg 2g
15 16-40 15 21,3 2,3 130 75 152,5 242,5 230 140 70 oválný otvor d1=6,5, d2=10 9,8 0,7 0,6
20 16-40 20 26,9 2,6 150 75 152,5 245 230 140 70 oválný otvor d1=6,5, D2=10 16,2 0,9 0,8
25 16-40 25 33,7 3,2 160 90 160 247,5 230 160 85 14 26,9 1,5 1,4
32 16-40 32 42,4 3,2 180 105 182,5 - 260 160 90 14 47,5 1,8 1,7
40 16-40 40 48,3 3,2 200 120 190 - 260 200 125 17 99,8 2,6 2,4
50 16-40 50 60,3 3,6 230 145 222,5 - 300 200 125 17 166,7 3,5 3,1
65 16-25 65 76,1 3,6 270 - - - 300 280 145 19 282 5,7 -
80 16-25 80 88,9 3,6 270 - - - 300 280 150 19 425 7,7 -
100 16-25 100 114,3 3,6 280 - - - 325 280 170 19 730 11,2 -
125 16-25 125 139,7 4,5 280 - - - 400 400 180 25 1085 19,5 -
150 16-25 150 168,3 5,0 300 - - - 600 600 210 25 1900 22,7 -
200 16-25 200 219,1 9,0 300 - - - 900 900 260 27 2890 45,0 -

Valve temperature working range at max. pressure

Scope of the operation: A+B+C = DN 15,20,25,30,40,50 B+C = DN 65,80,100 C = DN 125,150,200