- Woodco USA

CATALOG FOR PRESSURE CONTROL EQUIPMENT
Supplement 1
API TOP CONNECTORS
This catalog supplement provides detailed information about API Top Connectors
manufactured by WOODCO USA. You will find the equipment listed by Flange or (Clamp)
Hub size and pressure, with parts illustrated and a table of part numbers.
TRADEMARK
WOODCO
USA
REG. U.S. PATENT OFFICE
MANUFACTURER
WOODCO USA
P.O. Box 1261
Houston, Texas 77251-1261
Phone: 713-672-9491
U.S. and Canada: 1-800-496-6326
Fax:  713-672-8768
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Email: [email protected]
Effective Date: Feb 1, 2005 
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TABLE OF CONTENTS
Section 1.0 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.4 Reference Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.5 Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.6 Service Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.7 Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.8 Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.8 Supplemental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Section 2.0 Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Flange and Hub Top Connector Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Flange Top Connector Parts, Table 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Hub Top Connector Parts, Table 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Section 3.0 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1 Assembly Details and Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
Figure 1, WOODCO USA Top Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  5
Figure 2, Flange Top Connector Detail  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 3, Hub Top Connector Detail  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 4, WOODCO USA Top Connector Shown W/ “Tommy Bars”  . . . . . . . . . . . . . . . . 8
Figure 5, WOODCO USA Top Connector Disassembled . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 6, WOODCO USA Top Connector Plug (Bonnet, Cap)  . . . . . . . . . . . . . . . . . . . . . . 10
Figure 7, WOODCO USA Flange Top Connector Assembled  . . . . . . . . . . . . . . . . . . . . . . 11
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1.0 General
1.4 Reference Standards
WOODCO USA offers supplements
to general catalogs in order to provide
more detailed information about specific
equipment.
API Spec 6A
1.1 Purpose
WOODCO USA Top Connectors meet API
Spec 6A material requirements including
the special Annex K requirement that all
Top Connector material meet 75 K strength
regardless of working pressure.
WOODCO USA intends this supplement
to communicate the design, material,
and advantages of WOODCO USA
Top Connectors as specified in the
“informative” Annex K, of API Spec 6A,
20th Edition.
API Spec 16A
1.5 Material
Annex K specifies that Top Connectors
utilize only the following material classes.
1.2 Application
Top Connectors using the uppermost collar
connection shown in API Spec 6A allow
operators and service companies to use
interchangeable equipment when making
service equipment attachment to the top
of well head Christmas Trees.
1.3 Specification
Flange / Body, Collar & Plug.
DD-Sour Service a
Carbon or low alloy steel b
EE-Sour Service a
Carbon or low alloy steel b
FF-Sour Service a
Stainless steel b
HH-Sour Service a
CRA bcd
a
WOODCO USA Top Connectors meet all
the defined requirements of API Spec 6A.
b
1.4 Reference Standards
c
API Spec 6A
API Spec 16A
Note: API Spec 6A, 20th Edition
provides “Informative” information
about Top Connectors with a paragraph
in Annex K, K.4 warning that specified
Top Connector bores will not pass a drift
or Backpressure Valve. WOODCO USA
Top Connectors will pass both Drifts
and Backpressure Valves and satisfy all
API specified design requirements. See
Section 1.7 of this catalog.
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d
As defined by NACE Standard
MR0175/ISO 15156.
In compliance with NACE Standard
MR-01-75/ISO 15156.
CRA required on retained fluid wetted surfaces
only; CRA cladding of low allow or stainless
steel permitted.
CRA as defined in API 6A latest edition. NACE
MRO175/ISO 15156 definition of CRA does not
apply.
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1.6 Service Temperature
1.7 Design
API Spec 6A Annex K makes no mention of
service temperature yet specifies the use of
“FKM” (Viton) elastomer seal material. This
material has a normal temperature service
range of -20°F to 400°F.
WOODCO USA Top Connectors have
lowermost connectors meeting API Spec 6A
requirements for Flanges, and API Spec 16A
requirements for (Clamp) Hub connections.
Body diameters between lower and upper
connections have maximum allowed
diameters. Plugs have spiral retainer rings
to keep them connected with nuts and help
extract the plug when operators need to
enter the well through the Christmas Tree.
All WOODCO USA manufactured Top
Connectors have API full bores allowing
the normal installation of “Back Pressure
Valves” through the Christmas Tree.
The following API 6A temperature
classifications fall within -20°F to 350°F.
Temperature
Classification *
P
R
S
T
U
V
X**
Operating Range
( Degrees Fahrenheit [°F] )
Min.
Max.
-20
to
180
Room Temperature
0
to
140
0
to
180
0
to
250
35
to
250
0
to
350
* PURCHASER MAY COMBINE TEMPERATURE
CLASSES e.g. PX, -20 TO 350 °F
** MAY REQUIRE DERATING
Operators may specify lower temperature
ratings K (-75°F to 180°F), L (-50°F to 180°F)
and N (-50°F to 140°F) using elastomer seals
other than FKM.
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1.8 Quality
WOODCO USA defines “Product Quality”
as conformance to specified requirements.
We select suppliers on the basis of their
ability to provide materials, products and/or
services which conform to WOODCO USA
and API specifications.
All individual units must pass inspections
during and after production, and each unit
receives a hydrostatic body test. Operators
may specify API Spec 6A PSL levels.
1.9 Supplemental Requirements
Buyers should clearly define, at the time of
order, any requirements which exceed or
differ from API Spec 6A.
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2.0 Equipment
2.1 Flange and Hub Top Connector Features
PHOTO
Figure 1, WOODCO USA Top Connector
OPTIONS
{
10M AND LOWER PRESSURE 1/2” NPT
15M AND 20M PRESSURE F562C (AUTOCLAVE)
BONNET
(CAP/PLUG)
RETAINER RING
COLLAR (NUT)
LIFTING
BONNET
SEAL RING
SEAL RING WITH
BACKUP RING,
REQUIRED FOR
SOME SIZES AND
(OPTIONAL)
PRESSURES.
INTERNAL
SEE PARTS
LIFT THREAD
TABLES 1 AND 2.
I.D.
API 16A HUB
API 6A FLANGE
• Full compliance with the details and intent of API Spec 6A, Annex K, assures field interchangeability
with service equipment having API designated collar connections.
• WOODCO USA full bore designs allow Back Pressure Valve installation through the Top Connector.
• WOODCO USA provides a gall resistant coating on all units regardless of material to reduce
field corrosion and prevent galling on sensitive surfaces.
• The Collar (Nut) has a course knurled surface and “Tommy Bar” holes to facilitate installation
and removal of the Collar.
• A spiral retainer ring on the Plug allows the collar to lift the plug when opening the collar connection.
• Bonnet may have configuration to provide a lug to accept a Lifting Shackle.
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2.2 Flange Top Connector Parts
Reference this page to order parts for WOODCO USA Flange Top Connectors. Size and pressure along with part
numbers designate equipment geometry only. Buyers must additionally specify: PSL, Material Class, Service
Temperature and any special requirements.
Figure 2, Flange Top Connector Detail
AND LOWER PRESSURE 1/2” NPT
{10M
15M AND 20M PRESSURE F562C (AUTOCLAVE)
BONNET
(CAP/PLUG)
RETAINER RING
COLLAR (NUT)
LIFTING
SHACKLE
INTERNAL
LIFT THREAD
(OPTIONAL)
I.D.
API 6A FLANGE
SEAL RING WITH
BACKUP RING,
REQUIRED FOR
SOME SIZES AND
PRESSURES.
SEE TABLE
BELOW.
LIFTING
BONNET
Table 1, Top Connectors and Top Connector Parts 
(All dimensions in inches)
FLANGE SIZE
RING
GASKET
BONNET
(CAP
PLUG)
COLLAR
(NUT)
RETAINER
RING
TEST
PORT
PLUG
SEAL
RING
BACKUP
RING
BACKUP
O-RING
2-1/16” 5M*
2-1/16” 10M*
2-1/16” 15M*
2-1/16” 20M*
2-9/16” 5M
2-9/16” 10M
2-9/16” 15M
2-9/16” 20M
3-1/8” 5M
3-1/16” 10M
3-1/16” 15M
4-1/16” 5M
4-1/16” 10M
4-1/16” 15M
5-1/8” 5M
5-1/8” 10M
5-1/8” 15M
7-1/16” 10M
R-24
BX-152
BX-152
BX-152
R-27
BX-153
BX-153
BX-153
R-35
BX-154
BX-154
R-39
BX-155
BX-155
R-44
BX-169
BX-169
BX-156
10888
10888
10889
10890
10888
10888
10889
10890
10888
10888
10891
10892
10892
10893
10895
10895
10896
10897
10898
10898
10898
10899
10898
10898
10898
10899
10898
10898
10900
10901
10901
10902
10904
10904
10905
10906
10914-1
10914-1
10914-1
10914-2
10914-1
10914-1
10914-1
10914-2
10914-1
10914-1
10914-3
10914-4
10914-4
10914-6
10914-5
10914-5
10914-8
10914-9
10912
10912
10913
10913
10912
10912
10913
10913
10912
10912
10913
10912
10912
10913
10912
10912
10913
10912
34290
34290
34290
34290
34290
34290
34290
34290
34290
34290
35490
42790
42790
43690
43890
43890
43990
44490
10268-02
10268-02
10268-03
10268-05
10268-07
10268-09
15380
15380
15980
16180
16680
16880
* NOT SHOWN IN API 6A  
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2.3 Hub Top Connector Parts
Reference this page to order parts for WOODCO USA Hub Top Connectors. Size and pressure along with part
numbers designate equipment geometry only. Buyers must additionally specify: PSL, Material Class, Service
Temperature and any special requirements.
Figure 3, Hub Top Connector Detail
AND LOWER PRESSURE 1/2” NPT
{10M
15M AND 20M PRESSURE F562C (AUTOCLAVE)
BONNET
(CAP/PLUG)
RETAINER RING
COLLAR (NUT)
LIFTING
SHACKLE
INTERNAL
LIFT THREAD
(OPTIONAL)
I.D.
API 16A HUB
SEAL RING WITH
BACKUP RING,
REQUIRED FOR
SOME SIZES AND
PRESSURES.
SEE TABLE
BELOW.
LIFTING
BONNET
Table 2, Top Connectors and Top Connector Parts 
(All dimensions in inches)
HUB SIZE
RING
GASKET
BONNET
(CAP
PLUG)
COLLAR
(NUT)
RETAINER
RING
TEST
PORT
PLUG
SEAL
RING
BACKUP
RING
BACKUP
O-RING
2-1/16” 5M*
2-1/16” 10M*
2-1/16” 15M*
2-1/16” 20M*
2-9/16” 5M
2-9/16” 10M
2-9/16” 15M
2-9/16” 20M
3-1/8” 5M
3-1/16” 10M
3-1/16” 15M
4-1/16” 5M
4-1/16” 10M
4-1/16” 15M
5-1/8” 10M
5-1/8” 15M
7-1/16” 10M
BX-152
BX-152
BX-152
BX-152
BX-153
BX-153
BX-153
BX-153
BX-154
BX-154
BX-154
BX-155
BX-155
BX-155
BX-169
BX-169
BX-156
10888
10888
10889
10890
10888
10888
10889
10890
10888
10888
10891
10892
10892
10893
10895
10896
10897
10898
10898
10898
10899
10898
10898
10898
10899
10898
10898
10900
10901
10901
10902
10904
10905
10906
10914-1
10914-1
10914-1
10914-2
10914-1
10914-1
10914-1
10914-2
10914-1
10914-1
10914-3
10914-4
10914-4
10914-6
10914-5
10914-8
10914-9
10912
10912
10913
10913
10912
10912
10913
10913
10912
10912
10913
10912
10912
10913
10912
10913
10912
34290
34290
34290
34290
34290
34290
34290
34290
34290
34290
35490
42790
42790
43690
43890
43990
44490
10268-02
10268-02
10268-03
10268-05
10268-07
10268-09
15380
15380
15980
16180
16680
16880
* NOT SHOWN IN API 6A  
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3.0 Assembly
3.1 Assembly Details and Instructions
Figure 4, WOODCO USA Top Connector W/ “Tommy Bars”
The WOODCO USA Top Connector follows the API Spec 6A Annex K specifications, dimensions, and design.
WOODCO USA has added the feature of “Tommy Bar” holes in the Collar to facilitate turning of the Collar to
connect or disconnect the Collar connection.
INSTALL 2 FIELD ACQUIRED
“TOMMY BARS” (1/2” X 12”
4140 HT BAR STOCK, OR
1/2” X 12” B7 UNTHREADED
BOLT STOCK)TO FACILITATE
LOOSENING OR TIGHTENING
COLLAR (NUT)
All WOODCO USA made Top Connectors, have a gall resistant coating on all surfaces. During original assembly,
WOODCO USA applies water-resistant grease on the plug and collar. When operators remove the Plug and Collar,
WOODCO USA recommends the replacement of this lubricant. Seal rings and backup rings prove easier to install
when lightly lubricated with water-resistant grease (applied by hand, brush application of lubricant may cause
problems if the brush should lose a bristle that might end up behind or across a seal).
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3.1 Assembly Details and Instructions (Continued)
Figure 5, WOODCO USA Top Connector Disassembled
BLEEDER
CONNECTION
SPIRAL
RETAINER
RING
COLLAR
(NUT)
PLUG
(BONNET,
CAP)
SEAL(S)
BODY
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}
10M AND LOWER PRESSURE 1/2” NPT
15M AND 20M PRESSURE F562C (AUTOCLAVE)
}
}
APPLY LUBRICANT TO
PLUG AND SEAL(S)
AND BORE OF BODY
(SEE FIGURE 6 FOR
SEAL W / BACK-UP RING)
LUBRICATE EXTERNAL
THREAD OF BODY
AND INTERNAL THREAD
OF NUT WITH
API RP 543 / ISO 13678
THREAD COMPOUND
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3.1 Assembly Details and Instructions (Continued)
Figure 6, WOODCO USA Top Connector Plug (Bonnet, Cap)
When replacing the seals of any Top Connector that require a Back-up Ring, always install the Back-up Ring above
the Seal Ring. The smaller cross section o-ring acts to keep the Back-up Ring closed and in place in the groove.
SEAL RING
WITH
BACKUP RING
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3.1 Assembly Details and Instructions (Continued)
Figure 7, WOODCO USA Flange Top Connector Assembled
The completed assembly should appear as below. No force greater than hand tightening with 2 - 12” long
“Tommy Bars” should prove necessary.
Photo
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