Specifications
Specifications, Conformity, Testing and Inspection
Valve size:
All executions:
Standard:
DN50 - DN600
On request: DN700 - DN1800
Soft seated:
On request: DN2000 - DN3000
Ratings:
PN16, PN40, ANSI 150, ANSI 300, ANSI 600
Note: up to DN600 all ratings possible - above this contact DVC for further info.
Design Standards:
API 609, ANSI B16.34, ANSI B16.5
Seat Leakage option:
Class VI (FCI 70-2) for PTFE, EPDM, FPM
Class IV (FCI 70-2) for Flexible Metal Seats
Class IV (FCI 70-2) for Fire Safe seats
Flow Direction:
Bi-directional
DVC Series 25xx
Double Eccentric
Butterfly Valves
Wafer, LUG and Double
Flanged
Conformity to Standards
Design and Manufacturing
:
API 609 Category B, BS 5155, API607/ISO 10497 (Fire Safe)
Face-to-face Dimensions:
API 609, BS 5155, EN 558-1, ISO 5752
Flange Dimensions:
ANSI B16.5 (DN50 - DN600), ANSI B16.47 (DN700 and up)
EN 1092-1
Pressure Temperature Rating:
ANSI B16.34
Test and Inspection
Valve Inspection:
API 598, ISO 5208, EN 12266-1/12266-2, ANSI/FCI 70-2
Example of test - according to API598 - soft seated
Test
Test pressure Test standard Test medium Acceptance criteria
Hydro test
(Shell)
30 bar (ANSI 150) API 598
Water
No leakage
80 bar (ANSI 300) API 598
Water
No leakage
Seat
Leakage
Test
Max.
D
P Shut Off
FCI 70-2
Water
Class VI
20 bar (ANSI 150) API 598
Water
No leakage
54 bar (ANSI 300) API 598
Water
No leakage
An
Company
B-2530-UK-06-2013-REV. A
4
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