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Duo-ChekValves
Ordering Information
FigureNumber System
Size
Style PressureClass Body&Plate Seal
Body
Configuration
Modification
Number
24" H 15
S P
End
Connection
F
3
9 -
DESCRIPTION:
24" StyleH,ASMEClass 150, CarbonSteel Body andPlates, Metal Seal, raised face flanges, withdouble flangebody,
(modificationnumber indicates Inconel X spring)
Nominal valve sizes are expressed in
inches ormillimeters.
In Inches:
For usewithASME,API andBSFlange
Standards.
InMillimeters:
For usewithDIN,AS or JIS rated
valves (sizepreceded by "M" for DIN,
"A" forAS or "J" for JIS).
ValveSize
OrderingLetter
BodyType
SizeRange
G
StandardDesign,
2" through 72"
Wafer
(50mm through1800mm)
H
RetainerlessDuo-ChekDesign
2" through 72"
Wafer, Lugor DoubleFlange
(50mm through1800mm)
X
ExtendedBodyDesign
6" through 54"
(152mm through 1300mm)
U
Underwriters’ Laboratories Listed
4" through 12" (except 5")
Valves for FireProtectionService (U12HMPValvesOnly)
W*
Bodieswith IntegralWeld-Ends
2" through 72"
(50mm through1800mm)
Style
*Weld-end valves also require theadditional designationof the pipe schedule they are designed to fit.
PressureClasses
ASME
API
∆
DIN / JIS
1
BS /AS
2
Ordering
Class
Ordering
Class
Ordering
PN
Ordering
Table
No.
No.
No.
Rating
No.
12
125
21
2000
FlangeStandard:
6
15
150
10
B - BS
A
25
250
31
3000
M - DIN
16
thru
30
300
25
A -AS
T
40
400
51
5000
J - JIS
40
60
600
64
90
900
101
10000
100
150
1500
160
250
2500
151
15000
250
450
4500
320
∆ API Class is shown inpsig, coldworking pressure.
1 Metric valveswithDIN or JIS standard flanges are designated by having the nominal sizeexpressed inmillimeters, precededby "M" or "J'.Flange ratings inPN numbers
are then listed after the valve style, as inASME orAPIValves.
Example:
M100 (4" ) G16SPF
FlangeStandard
(M - DIN)
100mmSize
PressureRating, PN
for DIN or JIS
(in bars)
This specifies ametric valve, designed to fit betweenDIN
flanges.Nominal size is 100millimeters (corresponding to
4"), StyleGDuo-Chekwith a pressure rating of 16 bars,
carbon steel body and plate, metal seat, and raised face
end connections.
2 Valves designed for usewithBritishStandard 10 orAustralianStandard 2129are defined by adding two letters between the styleof construction and
pressure rating.First letter designates the standard, and the second letter denotes the table in that standard.
Figure number lists a 6" StyleGDuo-Chek, designed to fit
betweenBritishStandard 10, TableEFlanges, using aClass
150Valve, having an aluminum bronze body and plates,
Neoprene seal and raised face end connections.
Example:
6" G B E 15 BNF
FlangeStandard
B - BritishStd. 10
ASMEClass
ismade from
Table in corresponding
Standard
