An
Company
B-2231-UK-11-2013-REV. C
No.
Description
Material
Standard Coating
1 Body
Ductile iron - ASTM A536 Gr 65-45-12 (GGG40)
Carbon steel - ASTM A216 WCB (GSC25N)
Stainless steel - ASTM A351 CF8M
3 layer coating EPOXY/EPOXY/PUR 160µ
RAL 9006
2 Disc
Low alloy stainless steel - ASTM A276 (SS201)
Ductile iron - ASTM A536 Gr 65-45-12 (GGG40)
Ductile iron
Stainless steel - ASTM A351 CF8M
Alu-bronze - ASTM B148 C95800 Duplex
Hastelloy
Rilsan
F46 (FEP)
3 Seat
NBR
Copolymer EPDM
FPM
4 Stem
Stainless steel - SS420 for PN16
Stainless Steel - SS431 for PN25
5 V-type ring
Same material as seat
6 Bushing
Bronze
Graphite inner coating
7 Bottom cover
Ductile iron
Polyester
RAL 9006
8 O-type ring
NBR
9 Space ring
Steel
Galvanized
10 Spring ring
Spring steel
11 Bolt
Stainless steel
12 Gasket
Same material as seat
13 Bottom screw
Steel
Galvanized
Structure and material
5
6
6
7
8
10
9
4
1
3
2
4
12
11
13
Type 2400 - Double Flanged - DN350 to DN600
Know-how makes the difference
11
