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Design V260
Valve Body Size and End Connection Styles
8-, 10-, 12-, 16- and 20-inch flanged valves with
ANSI Class 150, 300 and 600 raised-face or ring-
type joint flanges compatible with ASME B16.5.
See table 2 for face-to-face dimensions
Maximum Inlet Pressures and Temperatures
Consistent with Class 300 or 600 pressure-tempera-
ture ratings per ASME B16.34
Maximum Allowable Shutoff Pressure Drop
For Single-Seal and Dual-Seal Construction:
(Except where further limited by the pressure-tem-
perature rating of valve body material)
For LF2 valve body material:
Class 300: 51 bar (740 psi) at 38_C (100_F)
Class 600: 103 bar (1480 psi) at 38_C (100_F)
Seal Material and Temperature Capability
J Delrin (Standard) –46 to 82_C (–50 to 180_F)
J PTFE/PEEK
(2)
(Optional) –46 to 232_C (–50 to
450_F)
J S31600 (316 SST)/Alloy 6 (Optional) Consult
factory
Flow Characteristic
Modified equal percentage
Flow and Shutoff Direction
Unidirectional flow for Design V260 is forward flow.
Seal is upstream.
1. The pressure-temperature limits in this instruction manual and any applicable standard or code limitation for valve should not be exceeded.
Table 2. Face-to-Face Dimensions and Approximate Weights
VALVE SIZE,
FACE TO FACE
FACE-TO-FACE
INCHES
INCHES
DIMENSIONS
(1)
(CLASS 600
)
8
10
12
16
20
8
10
12
16
20
1. For Class 300 valves, face-to-face dimensions are the same as Class 600 valves.
2
Table 1. Specifications
(1)
(1)
(1)
(1)
APPROXIMATE
APPROXIMATE
WEIGHT
mm
kg
661
424
788
653
840
882
990.6
2472
1144
4313
Inches
Pounds
26.04
975
31.04
1550
33.07
2025
39.0
5450
47.0
9500
J Single Seal Constructions: Should be used for
unidirectional flow and unidirectional shutoff only.
J Dual Seal Constructions: V260A and V260C
may be used for unidirectional or bidirectional flow.
V260B should be used for unidirectional flow only
for most effective anti-cavitation protection. Bidirec-
tional shutoff requires the dual seal construction.
Shutoff Classification
Single-Seal Composition Constructions: 0.001%
of maximum valve capacity (less than 10% of ANSI/
FCI 70-2 Class IV)
Dual-Seal Composition Constructions: 0.001% of
maximum valve capacity (less than 10% of ANSI/
FCI 70-2 Class IV)
Single-Seal Metal Constructions: Class IV per
ASME B16.34 FCI 70-2
Dual-Seal Metal Constructions: Class IV per
ASME B16.34 FCI 70-2
Maximum Ball Rotation
90 degrees
Actuator Mounting
Right-hand or left-hand mounted as viewed from the
valve inlet for forward flow
Approximate Weight
See table 2
Installation
WARNING
D Personal injury or equipment dam-
age can result from the sudden release
of process pressure if service conditions
can exceed valve or mating pipe flange
pressure ratings. To avoid such injury
or damage, provide a relief valve for
over-pressure protection as required by
government or accepted industry codes
and good engineering practices.
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