1. Hemiwedge® Cartridge Valve

2. Contents IntroductIon
Introduction 2 The Hemiwedge® Cartridge Valve is an innovative design that incorporates the
positive features of ball, gate, plug and high performance valves. The result is
Design and Manufacturing 3 a mechanically sealing, tight shutoff valve with a simple operation that provides
outstanding longevity and performance in a broad range of applications with
Critical Service Solutions 3 virtually no maintenance.
Hemiwedge® Cartridge Design 4-5 The Hemiwedge® Cartridge valve is a thru-conduit, quarter-turn, mechanically
sealing design providing low emissions and quick operation capabilities in critical
Product Availability 6 shutoff applications. The product was initially developed with resilient seats, but
for severe services (with particulates or for high temperature) a metal-to-metal
Pressure-Temperature Ratings 7 seated version has been developed. The metal-to-metal seated version uses the
same body and bonnet as the resilient seated version and is factory tested to
How to Order 7 the tightest leakage criteria in the industry (ISO 5208 Rate B).
About Us 8 The Hemiwedge® Cartridge Valve seals using a hemispherical closure member
(Hemiwedge®) that wedges tightly against the seat to provide tight shutoff in either
Contact Information 8 high or low pressures with repeatable zero leakage (resilient seated valves).

3. desIgn and ManufacturIng
The Hemiwedge® Cartridge Valve is
manufactured by Hemiwedge Valve Corporation
located in Conroe, Texas, USA. The Hemiwedge
Valve Corporation plant has a 60,000 square
foot, climate controlled facility with state-of-the-
art machine tools and capable of machining
both small and large diameter, close-tolerance
products using a myriad of materials of
construction including various carbon and alloy Development of Hemiwedge®
steels, as well as high grade stainless steels, products begins with SolidWorks®
duplex stainless steels, and high nickel / chrome 3D CAD Software.
alloys. More importantly, the plant is operated by highly skilled machinists and
technicians experienced with the manufacturing of complex components and
assemblies used in critical oil and gas applications.
The Hemiwedge® Cartridge Valve is only one of several patented designs using
the Hemiwedge® design principle developed approximately one decade ago by
Solderberg Research and Development, Inc. The Hemiwedge® Cartridge Valve has
been developed one size and pressure class at a time using SolidWorks® 3D CAD
Software, finite element analysis, and fluid flow modeling tools, and in accordance
with a carefully developed and controlled design plan that includes rigorous design
verification and validation. The product is fully scalable. The Hemiwedge® Cartridge
2
Valve is available with API 6D monogram and complies with ANSI B16.34. The
Finite Element Analysis methods
quality system of Hemiwedge Valve Corporation manufacturing facility, located
are used to ensure the structural
in Texas, is certified to API Spec Q1, ISO9001:2000, ISO/TS29001. Product
and functional integrity of all
qualification testing includes independent witnessed fire-testing to ISO 10497 and
critical parts.
API 607 5th edition and independent flow testing to determine Cv and Ct values, as
well as numerous trials in severe service applications. Hemiwedge® Cartridge Valves
are registered in most Canadian provinces and have ABS Type Design Assessment
for marine applications.
crItIcal servIce solutIons
From upstream oil and gas production to
downstream refining and gas processing, the
Hemiwedge® Cartridge Valve is uniquely suited
for a variety of critical service applications.
Dimensions of Hemi’s and other
Proven applications are found in a variety of critical part dimensions are verified
industries including oil and gas production, on a Coordinate Measurement
petrochemical, and mining. Specific installation Machine (CMM). This is one of
experience includes critical isolation shutoff several verification and validation
in gas gathering, salt dome storage, mud methods used in both development
diverter, production manifolds, compressed gas, and production.
ammonia, blowdown, steam injection, and CO2 injection.
The Hemiwedge® Cartridge Valve is uniquely superior to conventional valve
designs for critical service applications due to its inherent design features. With
a mechanical-seal in a quarter-turn operation, coupled with a fixed core and
ability to handle both high flows and particulates, the Hemiwedge® Cartridge
Valve is well suited for many challenging emergency shutdown installations.

4. Features HeMIwedge cartrIdge desIgn ®
CARTRIDGE DESIGN CARTRIDGE DESIGN
• Top Entry The Hemiwedge® Cartridge Valve’s defining feature is its ‘cartridge design’
• Ease of Repair whereby all the valve’s internal sealing parts are affixed to the bonnet allowing
• Reduced Downtime quick and easy serviceability and reducing expensive downtime during
• Error Proof Repair maintenance.
• Serialized Cartridges
• Interchangeability This ‘cartridge design’ provides the ability to repair the valve with relative ease in
a minimum amount of time without any special training or special tools.
MECHANICALLY SEATED
• HEMI - Mechanical Wedge When the valve is isolated (de-pressured), simply remove
• Bubble Tight Seating the bonnet fasteners, slide the cartridge out of the body,
• Bi-Directional Sealing insert the new cartridge into the body, and retighten the
• Low or High Pressure bonnet fasteners.
• Reduced Load During
Operation Patents: 4,962,911; 5,333,834; 7,357,145. Numerous patents pending in
USA and worldwide.
• Reduced Wear on Seat
QUARTER TURN OPERATION
• Easily Automated
• Reduced Emissions
Compared to Rising Stem
Valve Designs
• Quick / Reliable Operation
• Low Dimensional Profile
STATIONARY CORE
• Seat Constantly Protected
From Product Flow
• Linear Flow Characteristic
• Reduced Turbulence

5. MECHANICAL WEDGE SEATING
The mechanical seal is achieved by rotating a hemispherical wedge (HEMI) around a central fixed point (stem). The
increased offset of the external sealing surface of the HEMI creates a positive mechanical load on the seat at the full
closed position. The positive mechanical load provides a tight seal at both low and high pressures irrespective of direction
of differential pressure.
HEMI CoRE / HEMI / SEAT
OFFSET
4
QUARTER TURN opERATIoN
The Hemiwedge® Cartridge Valve is a quarter-turn design providing low emissions compared to other valve designs
with a quick, reliable operation in emergency shutdown and other critical shutoff applications. It is also easily adapted to
standard quarter turn actuation.
STATIoNARY CoRE
Throughout the opening and closing of the valve, the core (red) maintains its stationary position within the HEMI (green),
which protects the seating surface and provides a longer seal life. The fixed core also minimizes turbulence during
operation compared to other valve designs. In the full-open position, the valve is thru-conduit, full-port, and piggable.
opEN pARTIAL opEN CLoSED

6. product Range Product avaIlabIlIty
and options
CLASS 150 300 600 900 1500
Hemiwedge® Cartridge Valves
are available in a variety of sizes, NPS DN/PN 20 50 100 150 250
pressure classes, materials, 2 50
and trims. The basic design is 3 X 2 75 X 50
easily scalable. Additional sizes,
pressure classes and features are 3 75
continually under development to 4 X 3 100 X 75
meet industry demands.
4 100
MATERIALS 6 X 4 150 X 100
Carbon steel (A216 Grade WCB 6 150
and WCC), impact-tested carbon
steel (A352 Grade LCC), stainless 8 X 6 200 X 150
steel (A351 Grade CF8M) are 8 200
the most typical alloys offered, 10 X 8 250 X 200
but other alloys are available
depending on service conditions. 10 250
Other body alloys include Monel 12 X 10 300 X 250
K500, Inconel 625, Hastelloy C,
22Cr Superduplex, and 25Cr Sizes are continually under development. Refer to website
(www.hemiwedge.com) for current size availability.
Superduplex. Trim materials are
available in a variety of alloys to
meet NACE MR0103 and MR0175
requirements, and other corrosive
environments.
SEATS/SEALS
The selection of seat/seal material
is dependent on the service fluid
and temperature, and includes
various common elastomers such
as Viton® and HSN, or plastic
materials such as Teflon®, Tefzel®,
PEEK, or all-metal. Because
the Hemiwedge® design has a
mechanical seal and the core
provides protection of the seat
face, seats are able to maintain
longer sealing capability.
OPERATION
Lever or gear operated manual
valves are available. If automation
is required, the quarter-turn
design is easily adapted to any
quarter-turn electric, pneumatic, or
hydraulic actuator.
SPECIAL REQUIREMENTS
Need a feature or requirement
not standard? Not a problem.
Items such as extensions, lock-out
devices, special position indicators,
custom painting, and special
testing are available upon request.

7. Pressure-teMPerature ratIngs Hemiwedge® Cartridge Valve (All Seats)
100
(PERCENT OF RATED PRESSURE)
75 This line represents the Pressure-
Temperature rating of valves with
PRESSURE
Grade WCB material per ANSI
50 B16.34. The actual maximum
temperature rating of the valve
is determined by maximum
TYPICAL BALL VALVE (8) temperature rating of the seat
25
With Pure Teflon Seat insert seal materials used.
With Filled Teflon Seat
0
-50 0 100 200 300 400 500 600 700 800º F
-46 -18 39 93 149 204 260 315 371 426º C
TEMPERATURE
MAXIMUM SERVICE PRESSURE, PSIG
Pressure-Temperature rating is not limited by the seat material as are most 90° ball valves. The Hemiwedge Presure-Temperature rating is
limited only by ANSI B-16.34.
SERVICE PRIMARY SERVICE PRESSURE RATING, ANSI B-16.34 SERVICE
TEMPERATURE TEMPERATURE
DEC. F 150 300 600 900 1500 DEC. C
-20 to 100' 285 740 1480 2220 3705 -29 to 39'
200 260 680 1360 2035 3395 93
6
300 230 655 1310 1965 3270 149
400 200 635 1265 1900 3170 204
500 170 605 1205 1810 3015 260
600 140 605 1210 1815 3025 315
700 110 555 1110 1665 2775 371
800 80 410 825 1235 2055 426
** For valves of WCB material.
How to order
The figure number incorporates the valve size, followed by a series of numbers and letters that represent standard design
features, materials and specifications. EXAMpLE: 6R-2111-SV-RF-G 6, Reduced Port, 300 Class, A216 Grade WCB
Body, Standard Seat, Closed Bonnet, Full SS Trim, Viton Seals, Raised Face, Gear Operated.
A B .-C D E
NPS Port Pressure Body Material Seat Design
1 1 or DN 50 F Full 1 150 CL or PN 20 1 A216-WCB 1 Standard
2 2 or DN 25 R Reduced 2 300 CL or PN 50 2 A352-LCC 2 Metal-To-Metal
3 3 or DN 75 4 600 CL or PN 100 3 A351-CF8M 3 Block-and-Bleed
4 4 or DN 100 5 900 CL or PN 150
6 6 or DN 150 6 1500 CL or PN 250
8 8 or DN 200 7 2500 CL or PN 420
16 10 or DN 250
12 12 or DN 300
16 16 or DN 400 9 Other Material 9 Other - Engineered
F -G' H - JJ' -K'
Bonnet Design Trim Material Seals End Connection Operation
1 Extended Closed Bonnet 1 HVC Standard V Viton RF Raised Face L Lever Operated
2 Outside Packing Gland S Full SS N Nitrile RG RJ - R G Gear Operated
3 Low Profile Closed Bonnet C Low Temp SS H HBNR BW Butt Weld R Actuator Ready
2 NACE MR0103.MR0175:2002 T Glass-Filled TFE SW Socket Weld A Actuator Adapted
3 NACE MR0175:2003 P PEEK TH Threaded
M Metal
9 Other - Engineered 9 Engineered Trim 9 Other Material 99 Other 9 Other

8. about us
Hemiwedge® Cartridge Valve is a
mechanically sealing, quarter-turn,
positive shutoff valve that may be
used in a wide range of applications
within a variety of industries.
Hemiwedge® Cartridge Valves are
manufactured by Hemiwedge Valve
Corporation in a 60,000 square foot
facility located in Conroe, Texas,
USA. Hemiwedge Valve Corporation
is a team of some of the valve
industries top valve managers
and creative designers, dedicated
to bringing the Hemiwedge®
technologies to a variety of industries
requiring solutions to demanding
applications and services. Other
technology under development
by Hemiwedge Valve Corporation
include mechanical and hydraulic
downhole isolation valves and a
20,000 lb metal-seated shutoff valve
used in chemical injection and other
critical installations. Hemiwedge®
Valve Corporation has a strategic
alliance with Shumate Machine
Works, also located in Conroe, Texas.
Shumate Machine Works brings three
decades of close-tolerance machining
capabilities.
1011 Beach Airport Road
API Registration Number
6D-0808
Conroe, Texas 77301
Main 936-539-5770
Patents: 4,962,911; 5,333,834; 7,357,145
Numerous patents pending in USA Fax 936-539-2990
and worldwide. www.hemiwedge.com