Krombach® Metal Seated Ball Valves

 

Materials of Construction


Krombach Metal Seated Ball Valves
Floating Ball Design
Trunnion Mounted Ball Design

Floating Ball Design

Metall Seated Ball Valve_Material Sizes
Item Component Materials
1 Body 1.0619, 1.4581, 1.4571, 1.0460, Hastelloy C 276; Hastelloy C 2000, all other special materials A 216 Gr. WCB; A105; A182 Gr. F316 (1.4301); A182 Gr. F316 Ti (1.4571); Hastelloy C- 276; Hastelloy C 2000, etc.
2 Body gasket pure graphite
3 Ball stainless steel; or other special alloys with coating (see page 14 table )
4 Seat ring stainless steel; or other special alloys with coating (see page 14 table )
5 Stem F316 Ti, A453 Gr. 660 (1.4980); or other special alloys
6 Stud bolt / hex. nut A4-70, 1.7709 A193 Gr. B8 / A194 Gr. 8M; A193 Gr. B16 / A194 Gr. 7
7 Pressure ring A18 F316Ti (1.4571); or other special alloys


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Trunnion Mounted Ball Design

Trunnion Mounted Ball Design
Item Part Materials
1 Body 1.4571, 1.0460, Hastelloy C 276; Hastelloy C 2000, all other special materials A 216 Gr. WCB; A105; A182 Gr. F316 (1.4301); A182 Gr. F316 Ti (1.4571); Hastelloy C- 276; Hastelloy C 2000, etc.
2 Body gasket pure graphite
3 Ball stainless steel; or other special alloys with coating
4 Seat ring stainless steel; or other special alloys with coating
5 Stem F316 Ti, A453 Gr. 660 (1.4980); or other special alloys
6 Stud bolt / hex. nut A4-70, 1.7709 A193 Gr. B8 / A194 Gr. 8M; A193 Gr. B16 / A194 Gr. 7
7 Pressure ring A18 F316Ti (1.4571); or other special alloys
8 Bearing stainless steel; or other special alloys with coating
9 Secondary Gaskets Graphite, Viton, PTFE, Kalvez, depending on temperature, pressure and medium
10 Belleville washer Inconel 718


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