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The BV Series: An
Introduction
Applications
Features
Benefits
Marketing Literature
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Silica Sand and Hydrogen
Gold and Nickel Mining
Coal Mining and Coal Gasification
TiO2 Plants
Catalyst
High Velocity Particulates
High Temperatures
Corrosives
Coal Liquefactions
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Forged Bodies
Made to Order
150# to 4500# ANSI
A Variety of Trim
Packages and
Options Available
Extra Strong Body
Metal Seats with
Carbide and
Ceramic Coatings
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Forged vs. Cast Body
In-house Coatings
Fine Lapping
Relief Cut
Full Bore
Protective Live Loaded
Stem Packing
Load Spring
Fixed Downstream
Seat
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Close Tolerances
Experience
Purge Options
MSS-SP61 & Zero
Leakage Testing
Lined vs. Coated
Beveled Upstream
Seat Pocket
Optimal Cv Values
Made in the USA
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Forged Bodies are
stronger and thicker
than Cast
Provides thick body
flanges for higher
torque values
Allows flexibility in
choosing body
materials and valve
features
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Cast bodies are
available in 316ss
and Carbon Steel
Sizes range from 1”
to 10”
Very Economical
Trunnion Designs are
available for
applications
involving only small
amounts of impurities
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Copeland introduced thermal sprayed coatings in the
1950’s and pioneered its development
During the 1960’s and 1970’s coating applications were
quickly adopted by the drilling tool and oil industries.
Experimentation with coatings on valves, pumps and
compressors led to many new applications
Late 1980’s saw coatings expand to ball valve sealing
components: balls and seats.
Today: Development continues
Copeland is one of the few companies that maintain inhouse coating capabilities
Copeland has provided coatings for a majority of
companies manufacturing severe service valves.
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Hardness exceeds 70 Rc vs. 40-60 Rc for Fused
Applied at 250 F with no heat effected zones or
thermal distortion.
Porosity less than 0.25%
Applied by a miniature rocket engine
Four times more chrome carbide particles than
spray and fuse
HVOF coatings applied in-house at Copeland for
over 20 years.
Excellent coatings available for ALL pressure
classes.
Liners
Explanation
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Copeland has a wealth of experience
with liners and coatings for abrasive
applications.
Please ask you Copeland Specialist for his
advice for dry abrasives.
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Lapping
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Load Springs
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Ball & Seat Lapping
Each seat is mate lapped to one side of
the ball. Copeland laps in BOTH seats for
longer life and polishes each seat to a
high degree to reduce the risk of small
particulates eroding the sealing surface
and to provide tight sealing for gases
Extra strong load springs are used for
these valves to provide extra tight shut-off
Load springs are normally made of
Inconel 718ss for long life at elevated
temperatures
For high pressure or highly abrasive
applications, a relief cut may be
made in the leading edge of the
ball on the sides that first see flow
when the valve is opened.
 Relief Cut is also called an
Arcuate Cut
The Double Relief Cut
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Explanation
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It’s purpose is to allow the initial flow to be spread out
over a larger area of the ball’s edge reducing wire
draw and wear to this critical part of the sealing
surface.
The ball and coating lasts longer under high pressure
and abrasive conditions. This modification provides a
blunt, leading edge against flow. The coating is thickest
at this point and the elimination of a sharp edge
minimizes coating fracture.
Relief Cut Flow Diagram
RELIEF CUT ALLOWS FOR FASTER PRESSURE RELIEF
Explanation
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As the ball first starts to open, the velocity
is at its greatest through the opening.
By allowing the flow to be spread across
a greater area, erosion to the leading
edge of the ball can be reduced.
Cross Sectional Views
Full bore valves are generally chosen for dry
abrasives to avoid wear and possible
plugging. However, regular, standard and
reduced port valves are also available.
 The above diagrams show some of the
standard features Copeland uses in building
these valves. Liners, coated bores, purge
ports are some of the many options used to
customize the product to the particular
application.
Explanation
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Stem Packing
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Explanation
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Live Loaded Standard Packing
Up to 850°F - Oxygen Present
Up to 1200°F - Reducing Atmospheres
Special Features
Stainless steel studs and nuts, torqued to
meet pressure requirements
Heavy duty gland flange
Braided carbon fiber anti-extrusion rings
surround two to three die-formed Grafoil
packing rings
Double 431 stainless (typical) rings with
chrome carbide coating or single peek filled
Teflon¨ make up the inner stem seal bearings
Options
Dual Stem Packing: 316 stainless steel molycoated lantern ring situated between the
two packing sets
High Temperature Packing
850°F-1300°F - Oxygen Present
850°F-1652°F - Reducing Atmospheres
Top - two reinforced composite fiber
braided ropes surround two oxygen
resistant, corrosion inhibited, Grafoil
packing rings
Center - two ceramic fiber gasket
insulators and two ceramic fiber braided
rope insulators split up to form an oxygen
and heat barrier
Bottom - Grafoil impregnated, Inconel
718 anti-extrusion and sealing ring, also
includes inner stem seal bearings
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Seats
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The leading edges of the seat ring wipe the
sealing surface clean,
 A wide sealing surface on each seat ring
minimizes the possibility of nicks and
scratches,
 Each seat is mate-lapped front and back (to
ball and body) to ensure the integrity of the
seals
 All metal to metal seals - no Grafoil or Teflon
behind the seat
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Explanation
Coated with
Carbide or Ceramic
17-4PH, 400SS, 329SS,
316SS, Stellite 6,
Inconels, Hastelloys,
Monel, Alloy 20,
Titanium, Zirconium
Fixed Downstream Seat
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All methods of locking-in the seat provide
sealed seat protection and easy seat removal
for repair. By trapping the seat into its proper
place, debris cannot get behind the seat and
cause leakage.
 Leakage can ultimately lead to severe erosion.
 Repairable seats offer significant advantages
for larger or high alloy valves.
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Explanation
The
downstream
seat is fixed
with bolting,
tabs or a
metal ring.
24” Mining Valve
Leakage Behind a Non-Fixed
Seat. Competitor No. 2
Copeland allows for a variety of testing options to
meet or exceed customer requirements.
 Our standard test MSS-SP61 includes a liquid seat test
 For gases, we can include a Zero Leakage test and
proprietary options to ensure the longest life and
lowest maintainable leakage rate.
Zero Leakage
Testing
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Zero Leakage Option
Zero Leakage has been defined as “50 psi of air for 3
minutes with the minimum acceptable passing
criteria being zero bubbles during the 3-minute test.
Additionally a 1000 psi nitrogen seat test is performed
for 3 minutes with zero bubbles. Furthermore,
3500/4500 ASME/ANSI valves are seat leak tested at
4000 psi of nitrogen for 3 minutes with zero bubbles.”
Note, that this test does not include the lengthy test
requirements and definitions required by most
specifications. It is also a bench test and not a
guaranty against future leakage. It can be, in fact, a
much less exacting testing criteria than those
generally accepted by the valve industry such as
MSS-SP61 and ANSI B16.104/FCI 70.2 Class IV, V or VI
leakage requirements. Copeland tests its valve
against MSS-SP61 and performs the zero leakage test
IN ADDITION to this generally accepted test criteria.
BV Series Valves
Warranty
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All products manufactured by Copeland are warranted against
defects of material or workmanship for a period of one and one
half years from the date of shipment when these products are used
within the service and pressure for which they are manufactured.
This warranty is limited to replacement, without charge, of parts
found by Copeland to be defective in material or workmanship
and does not extend to claims for labor, expense or other loss or
damage occasioned by such defect. This warranty does not cover
deterioration by corrosion, erosion or any cause of failure other
than defect of material or workmanship. Purchasers are expected
to determine the suitability of Copeland products for the particular
purposes. This warranty is in place and in lieu of all warranties of
merchantability and fitness.
Made in America
Available Worldwide
Copeland ≈