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550_us
7 Order data
Body confi guration Code
2/2-way body D
Valve body material Code
1.4435 (ASTM A 351 CF3M) Investment casting* 34
1.4408 Cast stainless steel 37
1.4435 (316 L) Forged body 40
ASTM A 351 CF3M Investment casting* C1
* Material equivalency 316 L
Seat seal Code
PTFE 5
PTFE, glass filled 5G
Order example
550 15 D 1 34 5 1 1 G 1 1781
Type 550
Nominal size 15
Body configuration (code) D
Connection (code) 1
Valve body material (code) 34
Seat seal (code) 5
Control function (code) 1
Actuator size (code) 1
Flow direction (code) G
Spring set (code) 1
Special version (code) 1781
Control function Code
Normally closed (NC) 1
Normally open (NO) 2
Double acting (DA) 3
Double acting (normally open) 8
(only for control valves)
Actuator size Code
Actuator 0 piston ø 28 mm 0
Actuator 1 piston ø 42 mm 1
Actuator 2 piston ø 60 mm 2
Actuator 3 piston ø 80 mm 3
Actuator 4 piston ø 100 mm 4
Actuator 5 piston ø 130 mm 5
Under the seat G
Over the seat M
Flow direction Code
M
G*
* Preferred flow direction with incompressible liquid media to
avoid "water hammer"
Standard 1
Spring set Code
* Option 6996 can only be supplied ex works.
Special venting* 6996
Specially for the food industry
Surfaces electropolished 1781
Vibration ground finish - as standard
Special versions Code
Connection Code
Butt weld spigots
Sp
igots DIN 0
Spigots DIN 11850, series 1 16
Spigots DIN 11850, series 2 17
Spigots DIN 11850, series 3 18
Spigots SMS 3008 37
Spigots ASME BPE 59
Spigots EN ISO 1127
60
Threaded connections
Threaded sockets DIN ISO 228 1
Threaded sockets BS 21 Rc 3B
Threaded spigots DIN ISO 228 9
Threaded sockets NPT 31
Flanges
Flanges EN 1092 / PN16 / form B 8
length EN 558, series 1
ISO 5752, basic series 1
Flanges EN 1092 / PN25 / form B 10
length EN 558, series 1
Flanges EN 1092 / PN25 /form B 13
Clamp connections
Clamps following ASME BPE 82 for pipe 82
EN ISO 1127, length EN 558, series 1
Clamps DIN 32676 for pipe DIN 11850, 86
length EN 558, series 1
Clamps ASME BPE for pipe ASME BPE, 88
length EN 558, series 1
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