TheFisherV260isafull-borecontrolvalvedesigned
fromthegroundupwithfeaturesforoptimized
pressure, flow and process control. An integral drilled
attenuator controls noise and vibration from high
pressure drop liquids and gases. The splined shaft
connection to the actuator reduces lost motion.
The V260A with Aerodome attenuator, V260B with
Hydrodome attenuator, and V260C Ball Control Valves
(figures 1 and 3) combine the efficiency of a rotary
valve with the energy-dissipating capability of a special
trim to provide improved performance for demanding
applications. The valve is available with single, dual, or
dual block-and-bleed seal options (see the
Specifications table).
Product Bulletin
51.3:V260
July 2014
ThetrimdesignoftheV260Aisusedingasserviceto
reduce noise effects that cause pipeline vibration. The
V260B provides improved performance for demanding
applications such as pump bypass and pipeline
take-off. The trim is designed for liquid service to help
eliminate or reduce cavitation and associated pipeline
noise and vibration. The V260C full-bore ball valve is
designed for automated control in bypass, batch,
monitor, and emergency shutoff service applications,
and it presents little or no restriction to flow.
The V260 full-bore ball valve is available with
composition seals, and process type stem packing for
improved service life.
Unless otherwise noted, all NACE references are to
NACE MR0175-2002.
Features
Excellent Flow Control-- The splined ball to shaft
connection, splined shaft to actuator connection,
double power-end bushing assemblies, and
trunnion guiding, all provide improved dynamic
control.
W6539
Fisher V260 Valve
Aerodynamic Performance-- Up to -20 dBA
acoustical attenuation can be achieved for the
V260A within a single stage construction.
Dual-stage construction can provide up to -25 dBA
attenuation.
Improved Service Life-- The attenuator is not part of
the seal assembly. The seal wipes to ball surface, not
the attenuator, promoting increased service life.
Trim Versatility-- Key valve components, such as
valve body, ball, shaft and bearings, are
interchangeable between the V260A, V260B and
V260C. This feature allows you to reduce your spare
parts inventory and maintenance time.
(continued on page 2)
www.Fisher.com
Product Bulletin
51.3:V260
July 2014
Specifications
V260 Valve
D102352X012
Valve Body Sizes and End Connection Styles
NPS J 8, J 10, J 12, J 16, J 20, and J 24 flanged
valves with CL150, CL300, or CL600 raised-face
flanges compatible with ASME B16.5.
Consult your Emerson Process Management sales
office for other end style connections.
Shutoff Classification
Single-Seal Composition Constructions: 0.001% of
maximum valve capacity (less than 10% of ANSI/FCI
70-2 Class IV and IEC 60534-4)
Dual-Seal Composition Constructions: 0.001% of
maximum valve capacity (less than 10% of ANSI/FCI
70-2 Class IV and IEC 60534-4)
Maximum Inlet Pressures and Temperatures
Consistent with CL150, CL300, or CL600
pressure-temperature ratings per ASME B16.34
(1)
Seal Material and Temperature Capability
(1)
Standard: J POM (polyoxymethylene) -29 to 82_C
(-20 to 180_F)
Maximum Allowable Shutoff Pressure Drop
For Single-Seal and Dual-Seal Construction
(Except where further limited by the pressuretemperature rating of the valve body):
J CL150: 20 bar (285 psi) at 38_C(100_F)
J CL300: 51 bar (740 psi) at 38_C(100_F)
J CL600: 103 bar (1480 psi) at 38_C(100_F)
(1)
.
Optional: J PTFE/PEEK
(-20 to 200_F)
Maximum Ball Rotation
90 degrees
Actuator Mounting
(2)(3)
-29 to 93_C
Right-hand or left-hand mounted as viewed from the
Flow Characteristic
J Modified linear with single high density attenuator,
J Modified equal percentage with single
characterized attenuator (see figure 2), or
J Modified equal percentage without attenuator
valve inlet for forward flow
Packing Arrangements
PTFE Packing: Standard construction
(see figure 4)
ENVIRO-SEALt Packing: This optional packing
Flow and Shutoff Direction
Unidirectional flow for V260 is forward flow. Seal is
upstream.
J Single Seal Constructions: Should be used for
system provides improved sealing, guiding, and
transmission of loading force to control liquid and gas
emissions. Contact your Emerson Process
Management sales office for availability of
ENVIRO-SEAL packing (see figure 4)
unidirectional flow and unidirectional shutoff only.
J Double Seal Constructions: V260A and V260C may
be used for unidirectional and bidirectional flow.
Dimensions
Seefigure5
V260B should be used for unidirectional flow only for
effective anti-cavitation protection. Bidirectional
shutoff requires the dual seal construction.
Options
J Double block-and-bleed applications (Dual-seal
Flow Coefficients
See Fisher Catalog 12
1. The pressure/temperature limits in this bulletin and any applicable standard or code limitation for t his valve should not be exceeded.
2. PTFE stands for Polytetrafluoroethylene, and PEEK stands for PolyEtherEtherKetone.
3. Temperature limit of PTFE/PEEK is limited due to standard Nitrile O-Ring. Contact your Emerson Process Management sales office for higher temperature options, up to 232_C (450_F).
construction is required), J Two Stage V260A
Attenuator, J Two or Three Stage V260B Attenuator,
J CL900 flanges, J Ring type joint flanges
Features (continued)
Sour Service and Sour Crude Oil Capability--
Optional materials are available that comply with
NACE Standard MR0175-2002.
2
Tight Shutoff-- Self-adjusting seal(s) that are
pressure assisted provide tight shutoff for long
reliable service. The design incorporates a heavy
duty S31600 stainless steel carrier that retains the
composition seal for full-rated pressure drop
service.
V260 Valve
D102352X012
Product Bulletin
51.3:V260
July 2014
Heavy Duty Trunnion-- The ball trunnions are
designed for demanding applications requiring long
value of 1.0 is achievable depending on service
conditions.
service life, with a reduction in maintenance time
and costs.
Flexible Applications-- The attenuator is active
Broad Hydrodynamic Applications-- Single, dual,
and three-stage attenuators for the V260B may be
provided for a varying range of applications. A K
c
throughout the ball rotation for very demanding
services or a characterized attenuator is used to
matchtheserviceconditions(seefigure2).
Table 1. Aerodome and Hydrodome Trim Benefits Comparison
BenefitsTypical Competitive Device
Up to -20 dBA aerodynamic noise attenuationNoYesN/A
Excellent attenuation effect at critical opening positionNoYesYes
High Density (Full) or characterized attenuationNoYesYes