Body material No.
Part
Material
27
Standard bonnets nuts
Steel
BS 3692 Gr.8
Stainless steel
DIN ISO 3506 A2-70
High temperature bonnets nuts
Stainless steel
ISO3506 A2
Standard bonnet studs
Steel
ASTM A194 Gr.2H
28
Standard bonnet studs
Steel
BS 3692 Gr.8
Stainless steel
DIN ISO 3506 A2-70
High temperature bonnet studs
Stainless steel
ISO3506 A2
Standard bonnet studs
Steel
ASTM A193 Gr.B7
Steel
ASTM A193 Gr. B8 M2
Steel
ASTM A193 Gr. B7
28
27
see pages 6 and 7 for the DN125 to DN300 (6" to 12")
Page 8 of 29
TI-S24-71 CH Issue 10
Spira-trol
TM
Two-port Control Valves EN Standard KE, KF and KL DN15 to DN300 and ASME Standard KEA, KFA and KLA 1⁄2" to 12"