alfa uk ltd - metalix · pdf fileamerica, europe, russian countries and middle east. 2. alfa...
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ALFA – UK LTD. ALFA-UK is established in early 2000 and is a professional supplier of all kinds of Pipe Fittings and Flanges. With constant technological upgradation and to the fullest customer satis-faction, the company is undoubtedly the brand leader in fittings and Flanges in the oilfield and Construction sectors. We are equipped with the most modern facilities and a highly qualified workforce, enabling us to offer the widest possible range of fittings and flanges. Our product line embodies the highest standards in quality, productivity and dependability. ALFA-UK will make an exceptional effort to achieve continuous improvement in everything we do. We will deliver defect-free products and services on time to our customers. Our foremost objective is to do all of our tasks right the first time in meeting the requirements of the customer. Quality assurance figures at the raw material stage and persists through all depart-ments until it reaches the customer. We strive to maximize return on our resources and assets through careful capital management, well reasoned risk taking and the establishment of long-term goals for constant growth, integrity and honorable behavior are the integral part of our values. We, ALFA-UK, with many years of experience and expertise, utilize original cutting-edge tech-nologies to our advantage in providing quality products that support the basic needs of life. ALFA-UK flanges and fittings are designed and manufactured to withstand some of the world's harshest conditions, which they often need to endure in specialized market sectors such as oil & gas, petrochemicals, power generation and mineral refining. Our regional warehouses can respond quickly to your needs, your problems and your shipment.All our products are exported to most parts of the world, such North and South America, Europe, Russian countries and Middle East.
2
ALFA UK LTDBUTTWELD FITTINGSBUTTWELD FITTINGS
Types and Application of Buttweld Fittings.
Applicable Standards. (ASM / ASTM / MSS)
Elbow 90º Long & Short Radius.
Elbow 45º Long & Short Radius.
Caps
Equal Tee
Reducing Tee
Eccentric Reducers
Concentric Reducers
Technical Specification
Elbow 45º and 90º
Tee and Caps
Reducing Tees and Reducers
Forged Steel Flanges
Types & Rating Standards
ASME / ANSI Flanges
Types of Flanges
Weld Neck Flanges
Slip-On Flanges
Socket Weld Flanges
Screwed / Threaded Flanges
Lap Joint Flanges
Blind Flange
ASME _ANSI B16.5 Specification
Weld Neck Flanges - Class 150lbs
Weld Neck Flanges - Class 300lbs
Slip On Flanges - Class 150 lbs
Slip On Flanges - Class 300 lbs
Blind Flanges - Class 150lbs
Blind Flanges - Class 300lbs
BS 4504 (PN Designated)
Weld Neck Flanges / Slip-on Flanges / Blind Flanges16 Bar
Weld Neck Flanges / Slip-on Flanges / Blind Flanges 25 Bar
CONTENTSA
LFA
- U
KB
UT
TW
ELD
FIT
TIN
GS
ALF
A -
UK
FLA
NG
ES
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ALFA UK LTDBUTTWELD FITTINGSBUTTWELD FITTINGS
Alfa Butt w eld fittings are made of high quality materials through earthing and precision process, conform to ANSI B16.9, ASTM A234, WPB Standards, JIS 2311 and DIN 2605.
Alfa Buttweld fittings have all specification from 1/8” to 36”.
Concentric and Eccentric Reducers, Equal and Reducing Tees, 45° and 90° Elbows, Buttweld Caps and Stub Ends, are all part of the comprehensive range of Buttweld fittings carried by ALFA-UK LTD.
All our Buttweld fittings conform to relevant material and dimensional specifications and can be supplied completewith material certificates.
A pipe fitting is defined as a part used in a piping system, to change direction or function, which is mechanicallyjoined to the system.
TYPES AND APPLICATIONS OF BUTTWELD FITTINGS
A piping system using Buttweld fittings has many inherent advantages over other forms.
Welding a fitting to the pipe means it is permanently leakproof.
The continuous metal structure formed between pipe and fittings adds strength to the system.
Smooth inner surface and gradual directional changes reduce pressure losses and turbulence and
minimise the action of corrosion and erosion.
A welded systems utilises a minimum of space.
ALFA Buttweld fittings are manufactured, as a rule, in accordance with ASME standards B16.9 and B16.28 for
dimensions, shapes and tolerances.
ALFA Buttweld fittings are machined in accordance with ASME B16.25 standards for welding and preparation.
Manufacturing methods, quality and so on are bassed upon ASTM A234, A403 and A420 specifications.
Buttweld fittings conforming to dimensions and dimensional tolerances specified in MSS SP-43 can be manufactured
on application.
Buttweld fittings conforming to MSS SP-75 can be specially manufactured on application.
ALFA has standardized dimensions and dimensional tolerances for Buttweld fittings of 50 inches and larger as no
internationally recognized standards exist.
APPLICABLE STANDARDS
B16.9
B16.28
B16.25
B16.11
B36.10
B36.19
Wrought Steel Buttweld fittings
Wrought Steel Buttweld Short Radius and Returns
Buttweld Ends
Forged Fittings, Socket-Welding and Threaded
Welded and Seamless Wrought Steel Pipe
Stainless Steel Pipe
ASME STADARDS
A234
A403
A420
SP-43
SP-75
Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperatures
Service
Wrought Austenitic Stainless Steel Piping Fittings
Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service
Wrought Stainless Steel Buttweld Fittings
High Test Wrought Buttweld Fittings
ASTM STANDARDS
MSS STANDARDS
4
ALFA UK LTDBUTTWELD FITTINGSBUTTWELD FITTINGS
BUTTWELD FITTINGS
900 ELBOWS
LONG RADIUS ELBOW SHORT RADIUS ELBOW EXTRA LONG RADIUS
450 ELBOWS
distance and is equivalent to the radius through which the elbow is bent.
CAPS
IOD D
CTh
C
ODID
Th
C
C
ID
OD
E
The functions of a 900 elbow is to
change direction or flow in a piping
systems.
Elbows are split into three groups which
define the distance over which they
change direction, expressed as a function
of the distance from the centre line of one
end to the opposite face.
This is known as the centre to face
This is where the centre to face dime n -
s ion is longer than t h e standard long
radius type. The most common of these is
where the centre to face dimension is three
times the nominal size. i.e 3D
The function of 450 Elbow is the same as
a 900 Elbow, but the measur- ement of
dimensions , however , is different to that of
the 900 Elbow. The radius of a 450 Elbow is
the same as the radius of the 900 L.R. Elbow
where ‘R’ equals 1½ D. However, the centre to
face dimension is not equivalent to the radius
as in 900 L.R. Elbows, This is measured from
each face to the point of intersection of the
The function of an end cap is to block off
the end of a line in piping systems. This is
achieved by placing the end cap over the
open line and welding around the joint.
In this case the centre to face dimen-
sion is the same as the nominal pipe
size of the elbow.
The most common is the long radius
(L.R.) elbow where the centre to face
dimension is always 1 1/2 times the
nominal pipe size of the elbow.
centre lines perpendicular to each other. This is due to the smaller degree of bend.
5
ALFA UK LTDBUTTWELD FITTINGSBUTTWELD FITTINGS
EQUAL TEES
REDUCING TEES
CONCENTRIC REDUCERS
ECCENTRIC REDUCERS
ODOD
Th
R R
M
R R
L
L
The function of a Tee is to permit
flow at 900 to the main direction of
flow. The Main flow passes through
the ‘run’ whilst the 900 outlet is known
as the ‘branch’. The equal Tee is manu-
factured with all three outlets
being the same size.
The Reducing Tee is manufactured
with the branch outlet smaller than
the run to obtain the desired flow
and pressure through the system.
The function of both types of reducer
is to reduce the line from a larger to a
smaller pipe size, this obviously
results in an increased flow pressure.
With the Eccentric Reducer the
smaller outlet end is off centre to the
larger end enabling it to line up with
one side of the inlet and not with the
other.
The Concentric Reducer is so
manufactured that both inlet and
outlet ends are on a common centre
line. The Concentric reducer is easier
and less expensive to produce but
does not allow quite the same versa-
tility as the Eccentric Reducer. The
lengths of both types are fixed by
m anufacturing standards.
6
ALFA UK LTDBUTTWELD FITTINGSBUTTWELD FITTINGS
NPT(inch)
DN(mm)
OD C C Th Th450 900 450 900 450 900
CENTRE-TO-END(mm)
CENTRE-TO-END(mm)
STANDARD WEIGHT
APPROXWEIGHT
(kg)
APPROXWEIGHT
(kg)
WALLTHICKNESS
(mm)
EXTRA STRONGOUTSIDEDIAMETERAT BEVEL
(mm)
APPROXWEIGHT
(kg)
APPROXWEIGHT
(kg)
WALLTHICKNESS
(mm)
22½33½4568101214161820222426303642
506580901001251502002503003504004505005506006507509001100
6073891021141411682192733243564064575085596106607629141067
35445157647995127159190222254286318343381406470565660
0.350.751.011.421.913.265.181018273346587089100124165239320
0.680.352.032.83.86.410.42035536691115139177201247331478616
0.470.861.392.142.654.657.515243343597792117133164214318428
0.91.82.73.835.491431506886116147189234273328429635820
5.547.017.628.088.569.5310.9712.712.712.712.712.712.712.712.712.712.712.712.712.7
7695114133152190229305381457533610686762838914991114313721600
3.915.165.495.746.026.557.118.189.279.539.539.539.539.539.539.539.539.539.539.53
Technical Specification- Sizes, Dimensions and Weights
ASTM A 234 WPB ANSI B16.9 ANSI B16.28
NPT(inch)
DN(mm)
TEEOD R M Th E Th E
CAPS CAPS TEE CAPS CAPS
CENTRE-TO-END
RUN(mm)
CENTRE-TO-ENDOUTLET(mm)
STANDARD WEIGHT
WALLTHICKNESS
(mm)
APPROXWEIGHT
(kg)
APPROXWEIGHT
(kg)
NOMINALLENGTH
(mm)
WALLTHICKNESS
(mm)
APPROXWEIGHT
(kg)
APPROXWEIGHT
(kg)
NOMINALLENGTH
(mm)
EXTRA STRONGOUTSIDEDIAMETERAT BEVEL
(mm)
22½33½4568101214161820222426303642
506580901001251502002503003504004505005506006507509001100
6073891021141411682192733243564064575085596106607629141067
64768695105124143178216254279305343381419432495559673762
64768695105124143178216254279305343381419432495559673711
3.915.165.495.746.026.557.118.189.279.539.539.539.539.539.539.539.539.539.539.53
0.91.82.73.44.67.310.7203456.771.5599132.8163.4202259295455653779
38385164647689102127152165178203229254267267267267305
0.270.410.6411.423.35.48.212151925313944506087102
1.32.63.54.56.310.417305074101119161203243281378529743887
38385164647689102127152165178203229254267267267267305
0.360.450.911.31.62.64.26.811.3162025334150586679107134
5.547.017.628.088.569.5310.9712.712.712.712.712.712.712.712.712.712.712.712.712.7
Technical Specification- Sizes, Dimensions and Weights
ASTM A 234 WPB ANSI B16.9 ANSI B16.28
ALFA - UK LTD. reserves the right to change the contents with out notice
ALFA - UK LTD. reserves the right to change the contents with out notice
7
ALFA UK LTDFLANGESFLANGES
Reducing Tees & Reducers
Technical Specification- Sizes, Dimensions and WeightsREDUCING TEE
RUN
NPS(INCH)
DN(mm)
NPS(INCH)
DN(mm)
RUN(mm)
STANDARD(kg)
EXTRA STRONG(kg)
OUTLET(mm)
NOMINALLENGTH
REDUCERS(mm)
APPROXIMATE WEIGHTSOUTLET orREDUCED END
NOMINAL CENTERTO END OF TEES
ECCENTRIC REDUCER CONCENTRIC REDUCER
ASTM A 234 WPB ANSI B16.9 ANSI B16.28
2
2½
3
3½
4
5
6
8
10
12
14
16
18
20
22
24
50
65
80
90
100
125
150
200
250
300
350
400
450
500
550
600
¾11¼1½11¼1½211¼1½22½1¼1½22½311½22½33½22½33½422½33½4533½4563456846810681012681012148101214168101214161810121416182010121416
2025324025324050253240506532405065802540506580905065809010050658090100125809010012515080100125150200100150200250150200250300150200250300350200250300350400200250300350400450250300350400450500250300350400
64646464767676768686868686
95959595
105105105105105124124124124124143143143143143143178178178178178216216216216216254254254254279279279279305305305305305343343343343343381381381381381381419419419419419419432432432432
44515760576467706770737683
79838992
86899598102105108111114117121121124127130137152152156162168184184191194203216129229241238248250270264273283295305298308321330330324333346356356368359371381381394406384397406406
76767676898989898989898989102102102102102102102102102102102127127127127127140140140140140140152152152152152178178178178178203203203203330330330330356356356356356381381381381381508508508508508508508508508508508508508508508508
0.910.910.9511.361.451.61.62.272.312.312.362.723.43.43.723.764.315.445.444.264.264.314.356.66.66.66.86.98.99.19.59.89.810.417.217.718.418.620323434363646474759666667688184889599106112117122127133139143149155161166173179187195201205206212217
0.370.40.430.470.640.720.780.8111.11.161.21.21.231.261.281.311.31.331.351.371.41.421.491.521.611.671.741.9422.12.182.32.413.313.473.683.84.155.66.87.79.510.412.613.514.426272729
31323436
36373838
50535657
5860646568697071
1.221.221.271.271.911.952.042.042.722.722.812.953.4
55.15.45.7
5.95.96.26.46.88.18.38.59.110.213.614.114.314.514.715292929303041414344455961636783848688104106111117117136140149153158172175182190196204214217221226237245252255259265
0.40.410.460.540.70.790.921.021.111.181.221.251.321.41.451.521.591.811.861.952.042.12.22.22.42.52.62.833.53.744.355.46.67.37.57.78.49.510.411.312.713.414.515.5161827282834
40434648
51525354
68697275
7678798283858788
R M L TEE REDUCER REDUCERTEE
8
ALFA UK LTDFLANGESFLANGES
FLANGES
FORGED STEEL FLANGES
Forged flanges
Plate flanges
Forged steel flanges made of carbon steel or stainless steel, the materials conform to the
JIS, ASTMA182, A105, DIN17100 ST-2 and BS standard. Dimension to be in accordance with
JIS ANSI DIN BS standard accordingly
The flanges are suitable for connection of steel pipes conveying mediums such as steam,
oil, air and water. They are widely used in chemical industry and Shipbuilding. And the
flanges are suitable for welding. The flanges mainly include Weld Neck ,Blind, Slip-on,
Lap-Joint, Socket, Reducing and plate type.
TYPES
TYPES
RATING
RATING
STANDARDS MATERIAL
STANDARDS
Weld Neck
Blind
Slip-on
Lap Joint
Screwed
Socket Weld
Slip-on w/o collar
Blind
PN 10 to PN 40 DIN 2576, Din 2527
DIN 2533
BS 10, BS 4504
150lbs to 2500 lbs
PN 10 to PN 40
ANSI B 16.5
DIN 2682,2633,2634
2635,2642,2527,2566
2576,2642,2527,2566
MSS SP 44
ASME B 16.47
BS 4504
ASTMA-105
Sizes 1/2” to 36” NB ( 15 mm to 900 mm MB )
Facing : Raised, Flat, Ring type joint, Male / Female, Tongue / Groove.
A flange is a method of connecting pipes, valves, pumps and other equipment to form a pipework system. It also provides
easy access for cleaning, inspection or modification. Flanges are usually welded or screwed into such systems and then joined
with bolts.
A flange can also be a plate or ring to form a rim at the end of a pipe when fastened to the pipe.
9
ALFA UK LTDFLANGESFLANGES
ASME/ANSI FLANGES
Standards
Pressure classes range
Sizes range
Materials
Printing
WELD NECK FLANGE
Weld Neck Flange Dimensions :
WELD NECK FLANGE(WN flange)is circumferentially welded into the system at its neck
which means that the integrity of the butt welded area can be easily examined by radiography.
The bores of both pipe and flange match, which reduces turbulence and erosion inside the
pipeline. The weld neck is therefore favoured in critical application.
ANSI B 16.5, ASME B16.47
150lbs to 2,500lbs.
From ½ “to 36”
Carbon steel ,stainless steel and alloy steel. ASTM - A 105.
Carbon steel and alloy steel with yellow print, black print, oil or zinc.
Class 150 lbs, 300 lbs, 400 lbs, 600 lbs, 900 lbs, 1500 lbs, 2500 lbs
Class 150 lbs, 300 lbs, 400 lbs, 600 lbs, 900 lbs, 1500 lbs
SLIP-ON FLANGE
This flange is slipped over the pipe and then fillet welded. Slip-on flange are easy to use
in fabricated applications.
:::::
Standards
Pressure classes range
Sizes range
Materials
Printing
ANSI B 16.5, ASME B16.47
150lbs to 2,500lbs.
From ½ “to 36”
Carbon steel ,stainless steel and alloy steel. ASTM - A 105.
Carbon steel and alloy steel with yellow print, black print
oil or zinc.
:::::
Slip-On Flange Dimensions :
The Following are the various types of flanges manufactured by ALFA - UK LTD Weld Neck Flange, Slip-On Flange, Socket Weld
Flange, Screwed/Threaded Flange Lap Joint Flange, Blind Flange
Standards
Pressure classes range
Sizes range
Materials
Printing
This flange is counter bored to accept the pipe before being fillet welded. The bore of the
pipe and flange are both the same therefore giving good flow characteristics.
:
::::
GB9112-9131, SH3406, ANSI B16.5, DIN 25762766
DIN2632-2638
From 150 lbs to 2,500 lbs
DN 10-DN800.
Carbon steel, stainless steel and alloy steel.
Carbon steel and alloy steel with yellow print, black print,
oil or zinc.
SOCKET WELD FLANGE
10
Standards
Pressure classes range
Sizes range
Materials
Printing
ANSI B 16.5, ASME B16.47
150lbs to 2,500lbs.
From ½ “to 36”
Carbon steel ,stainless steel and alloy steel. ASTM - A 105.
Carbon steel and alloy steel with yellow print, black print
oil or zinc.
:::::
ALFA UK LTDFLANGESFLANGES
Standards
Nominal Pressure
Nominal Diameter
Materials
Printing
Packing
This flange is referred to as either threaded or screwed. It is used to connect other threaded
components in low pressure, non-critical applications. No welding is required.
:
::::
:
ANSI, AS2129, JIS, DIN, EN-1092-1, BS10
BS4504 etc.
PN0.25-PN42, 150LB-900LB,5K-30K.
DN10A-DN600A, NPS:3/8 “-24”.
Carbon steel, stainless steel and alloy steel.
Carbon steel and alloy steel with yellow print, black print, oil
or zinc.
Plywooden case.
SCREWED / THREADED FLANGE
Standards
Process
Sizes range
Materials
These flange are always used with either a stub end or taft which is buttwelded to the pipe
with the flange loose behind it. This means the stub end or taft always makes the face. The lap
joint is favoured in low pressure applications because it is easily assembled and aligned. To
reduces cost these flanges can be supplied without a hub and/or in treated, coated carbon
steel.
ANSI, MSS, API, AWWA, DIN, JIS, BS AND GB.
free forging, plate cutting.
1/2 “to 64” (and much larger size according
tocustomers demands)
Carbon steel, stainless steel and alloy steel
:::
:
LAP JOINT FLANGE
This flanges is used to blank off pipelines, valves and pumps, it can also be used as an inspec-
tion cover. It is sometimes referred to as a blanking flanges.
Class 150 lbs, 300 lbs, 400 lbs, 600 lbs, 900 lbs, 1500 lbs, 2500 lbs
BLIND FLANGE
Blind Flange Dimensionstin :
11
ALFA UK LTDFLANGESFLANGES
Pipe Flange Data
Nom
inal
Pip
e S
ize
Hub Data Drilling Data WeightRaisedFace
A B C D E F G H I JOutside
DiameterOverall
DiameterInside
DiameterOverallLength
HubDiameter
FaceDiameter
Bolt HoleDiameterNumber
of Holeskg/
peiceinmm
inmm
inmm
inmm
inmm
inmm
inmm
inmm
inmm
inmm
Diameterat WeldBevel
Diameterof Circleof Holes
FlangeThickness
min
½
¾
1
1¼
1½
2
2½
3
3½
4
5
6
8
10
12
14
16
18
20
24
4
4
4
4
4
4
4
4
8
8
8
8
8
12
12
12
16
16
20
20
0.48
0.71
1.01
1.33
1.72
2.58
4.11
4.92
6.08
6.84
8.56
10.6
17.6
24.0
36.5
48.4
60.6
68.3
84.5
115
0.84021.301.05026.701.31533.401.66042.201.90048.302.37560.302.87573.003.50088.904.000101.64.500114.35.563141.36.625168.38.625219.110.75273.012.75323.814.00355.616.00406.418.00457.220.00508.024.00609.6
3.50088.903.88098.604.250108.04.620117.35.000127.06.000152.47.000177.87.500190.58.500215.99.000228.610.00254.011.00279.413.50342.916.00406.419.00482.621.00533.423.50596.925.00635.027.50698.532.00812.8
0.62015.700.82020.801.05026.701.38035.101.61040.902.07052.602.47062.703.07078.003.55090.204.030102.45.050128.36.070154.27.980202.710.02254.512.00304.8
0.44011.200.50012.700.56014.200.62015.700.69017.500.75019.100.88022.400.94023.900.94023.900.94023.900.94023.901.00025.401.12028.401.19030.201.25031.751.38035.101.44036.601.56039.601.69042.901.88047.80
1.88047.802.06052.302.19055.602.25057.152.44062.002.50063.502.75069.852.75069.852.81071.403.00076.203.50088.903.50088.904.000101.64.000101.64.500114.35.000127.05.000127.05.500139.75.690144.56.000152.4
0.84021.301.05026.701.32033.501.66042.201.90048.302.38060.452.88073.153.50088.904.000101.64.500114.35.560141.26.630168.48.630219.210.75273.012.75323.814.00355.616.00406.418.00457.220.00508.024.00609.6
1.19030.201.50038.101.94049.302.31058.702.56065.003.06077.703.56090.404.250108.04.810122.25.310134.96.440 246.112.00304.814.38365.315.75400.118.00475.219.88505.022.00558.826.12663.4
1.38035.001.69042.902.00050.802.50063.502.88073.153.62091.904.120104.65.000127.05.500139.76.190157.27.310185.78.500215.910.62269.712.75323.815.00381.016.25412.718.50469.921.00533.423.00584.227.25692.1
0.62015.700.62015.700.62015.700.62015.700.62015.700.75019.100.75019.100.75019.100.75019.100.75019.100.88022.400.88022.400.88022.401.00025.401.00025.401.12028.401.12028.401.25031.751.25031.751.38035.10
2.38060.452.75069.853.12079.253.50088.903.88098.604.750120.75.500139.76.000152.47.000177.87.500190.58.500215.99.500241.311.75298.514.25362.017.00431.818.75476.321.25539.822.75577.925.00635.029.50749.3
C
BEF G J A
I 0.06 in(1.6 mm)
Weld Neck Flanges - ANSI B16.5 Class 150lbs
To b
e sp
ecifi
ed b
ypu
rcha
ser
12
ALFA UK LTDFLANGESFLANGES
Pipe Flange Data
Nom
inal
Pip
e S
ize
Hub Data Drilling Data WeightRaisedFace
A B C D E F G H I JOutside
DiameterOverall
DiameterInside
DiameterOverallLength
HubDiameter
FaceDiameter
Bolt HoleDiameterNumber
of Holeskg/
peiceinmm
inmm
inmm
inmm
inmm
inmm
inmm
inmm
inmm
inmm
Diameterat WeldBevel
Diameterof Circleof Holes
FlangeThickness
min
½
¾
1
1¼
1½
2
2½
3
3½
4
5
6
8
10
12
14
16
18
20
24
4
4
4
4
4
8
8
8
8
8
8
12
12
16
16
20
20
24
24
24
0.75
1.26
1.52
2.03
2.89
3.40
5.17
6.93
8.67
11.2
15.1
19.1
29.9
42.7
61.8
85.8
106
131
158
230
0.84021.301.05026.701.31533.401.66042.201.90048.302.37560.302.87573.003.50088.904.000101.64.500114.35.563141.36.625168.38.625219.110.75273.012.75323.814.00355.616.00406.418.00457.220.00508.024.00609.6
3.75095.204.620117.34.880123.95.250133.36.120155.46.500165.17.500190.58.250209.59.000228.610.00254.011.00279.412.50317.515.00381.017.50444.520.50520.723.00584.225.50647.728.00711.230.50774.736.0
914.4
0.62015.700.82020.801.05026.701.38035.101.61040.902.07052.602.47062.703.07078.003.55090.204.030102.45.050128.36.070154.27.980202.710.02254.512.00304.8
0.56014.200.62015.700.69017.500.75019.000.81020.600.88022.301.00025.401.12028.401.19030.201.25031.701.38035.001.44036.501.62041.101.88047.702.00050.802.12053.802.25057.152.38060.452.50063.502.75069.85
2.06052.302.25057.152.44062.002.56065.002.69068.302.75069.853.00076.203.12079.253.19081.003.38085.803.88098.503.88098.504.380111.24.620117.35.120130.05.620142.75.750146.06.250158.76.380162.06.620168.1
0.84021.301.05026.701.32033.501.66042.201.90048.302.38060.452.88073.153.50088.904.000101.64.500114.35.560141.26.630168.48.630219.210.75273.012.75323.814.00355.616.00406.418.00457.220.00508.024.00609.6
1.50038.101.88047.702.12053.802.50063.502.75069.853.31084.003.940100.04.620117.35.250133.35.750146.07.000177.88.120206.210.25260.312.62320.514.75374.616.75425.419.00482.621.00533.423.12587.227.62701.5
1.38035.001.69042.902.00050.802.50063.502.88073.153.62091.904.120104.65.000127.05.500139.76.190157.27.310185.78.500215.910.62269.712.75323.815.00381.016.25412.718.50469.921.00533.423.00584.227.25692.1
0.62015.700.75019.000.75019.000.75019.000.88022.300.75019.000.88022.300.88022.300.88022.300.88022.300.88022.300.88022.301.00025.401.12028.401.25031.701.25031.701.38035.001.38035.001.38035.001.62041.10
2.62066.553.25082.503.50088.903.88098.504.500114.35.000127.05.880149.36.620168.17.250184.17.880200.19.250234.910.62269.713.00330.215.25387.317.75450.820.25514.322.50571.524.75628.627.00685.832.00812.8
C
BEF G J A
I 0.06 in(1.6 mm)
Weld Neck Flanges - ANSI B16.5 Class 300lbs
To b
e sp
ecifi
ed b
ypu
rcha
ser
13
ALFA UK LTDFLANGESFLANGES
Pipe Flange Data
Nom
inal
Pip
e S
ize
Hub Drilling Data WeightRaisedFace
A B C D F G H I JOutside
DiameterOverall
DiameterInside
DiameterOverallLength
HubDiameter
FaceDiameter
Bolt HoleDiameterNumber
of Holeskg/
peiceinmm
inmm
inmm
inmm
inmm
inmm
inmm
inmm
inmm
Diameterof Circleof Holes
FlangeThickness
min
½
¾
1
1¼
1½
2
2½
3
3½
4
5
6
8
10
12
14
16
18
20
24
4
4
4
4
4
4
4
4
8
8
8
8
8
12
12
12
16
16
20
20
0.39
0.56
0.78
1.03
1.32
2.06
3.28
3.85
4.81
5.30
6.07
7.45
12.1
16.5
26.2
34.6
44.8
48.9
61.9
86.9
0.84021.301.05026.701.31533.401.66042.201.90048.302.37560.302.87573.003.50088.904.000101.64.500114.35.563141.36.625168.38.625219.110.75273.012.75323.814.00355.616.00406.418.00457.220.00508.024.00609.6
3.50088.903.88098.604.250108.04.620117.35.000127.06.000152.47.000177.87.500190.58.500215.99.000228.610.00254.011.00279.413.50342.916.00406.419.00482.621.00533.423.50596.925.00635.027.50698.532.00812.8
0.88022.401.09027.701.36034.501.70043.201.95049.502.44062.002.94074.703.57090.704.070103.44.570116.15.660143.86.720170.78.720221.510.88276.312.88327.114.14359.116.16410.518.18461.820.20513.124.25616.0
0.44011.200.50012.700.56014.200.62015.700.69017.500.75019.100.88022.400.94023.900.94023.900.94023.900.94023.901.00025.401.12028.401.19030.201.25031.751.38035.101.44036.601.56039.601.69042.901.88047.80
0.62015.700.62015.700.69017.500.81020.600.88022.401.00025.401.12028.401.19030.201.25031.751.31033.301.44036.601.56039.601.75044.501.94049.302.19055.602.25057.152.50063.502.69068.302.88073.153.25082.60
1.19030.201.50038.101.94049.302.31058.702.56065.003.06077.703.56090.404.250108.04.810122.25.310134.96.440163.67.560192.09.690246.112.00304.814.38365.315.75400.118.00457.219.88505.022.00558.826.12663.4
1.38035.101.69042.902.00050.802.50063.502.88073.153.62091.904.120104.65.000127.05.500139.76.190157.27.310185.78.500215.910.62269.712.75323.915.00381.016.25412.818.50469.921.00533.423.00584.227.25692.2
0.62015.700.62015.700.62015.700.62015.700.62015.700.75019.100.75019.100.75019.100.75019.100.75019.100.88022.400.88022.400.88022.401.00025.401.00025.401.12028.401.12028.401.25031.751.25031.751.38035.10
2.38060.452.75069.853.12079.253.50088.903.88098.604.750120.75.500139.76.000152.47.000177.87.500190.58.500215.99.500241.311.75298.514.25362.017.00431.818.75476.321.25539.822.75577.925.00635.029.50749.3
Slip On Flanges - ANSI B16.5 Class 150lbs
CD
BF G J A
I 0.06 in(1.6 mm)
14
ALFA UK LTDFLANGESFLANGES
Pipe Flange Data
Nom
inal
Pip
e S
ize
Hub Drilling Data WeightRaisedFace
A B C D F G H I JOutside
DiameterOverall
DiameterInside
DiameterOverallLength
HubDiameter
FaceDiameter
Bolt HoleDiameterNumber
of Holeskg/
pieceinmm
inmm
inmm
inmm
inmm
inmm
inmm
inmm
inmm
Diameterof Circleof Holes
FlangeThickness
min
½
¾
1
1¼
1½
2
2½
3
3½
4
5
6
8
10
12
14
16
18
20
24
0.84021.301.05026.701.31533.401.66042.201.90048.302.37560.302.87573.003.50088.904.000101.64.500114.35.563141.36.625168.38.625219.110.75273.012.75323.814.00355.616.00406.418.00457.220.00508.024.00609.6
0.88022.401.09027.701.36034.501.70043.201.95049.502.44062.002.94074.703.57090.704.070103.44.570116.15.660143.86.720170.78.720221.510.88276.312.88327.114.14359.116.16410.518.18461.820.20513.124.25616.0
1.38035.101.69042.902.00050.802.50063.502.88073.153.62091.904.120104.65.000127.05.500139.76.190157.27.310185.78.500215.910.62269.712.75323.915.00381.016.25412.818.50469.921.00533.423.00584.227.25692.2
4
4
4
4
4
8
8
8
8
8
8
12
12
16
16
20
20
24
24
24
0.64
1.12
1.36
1.68
2.49
2.87
4.32
5.85
7.34
9.61
12.3
15.6
24.2
34.1
49.8
69.9
88.1
109
134
201
3.75095.204.620117.34.880123.95.250133.36.120155.46.500165.17.500190.58.250209.59.000228.610.00254.011.00279.412.50317.515.00381.017.50444.520.50520.723.00584.225.50647.728.00711.230.50774.736.00914.4
0.56014.200.62015.700.69017.500.75019.000.81020.600.88022.301.00025.401.12028.401.19030.201.25031.701.38035.001.44036.501.62041.101.88047.702.00050.802.12053.802.25057.152.38060.452.50063.502.75069.85
0.88022.401.00025.401.06026.901.06026.901.19030.201.31033.201.50038.101.69042.901.75044.401.88047.702.00050.802.06052.302.44061.902.62066.552.880.73.153.00076.203.25082.503.50088.903.75095.204.190106.4
1.50038.101.88047.702.12053.802.50063.502.75069.853.31084.003.940100.04.620117.35.250133.35.750146.07.000177.88.120206.210.25260.312.62320.514.75374.616.75425.419.00482.621.00533.423.12587.227.62701.5
0.62015.700.75019.100.75019.100.75019.100.88022.400.75019.100.88022.400.88022.400.88022.400.88022.400.88022.400.88022.401.00025.401.12028.401.25031.701.25031.701.38035.001.38035.001.38035.001.62041.00
2.62066.553.25082.503.50088.903.88098.604.500114.35.000127.05.880149.46.620168.17.250184.27.880200.19.250234.910.62269.713.00330.215.25387.317.75450.820.25514.422.50571.524.75628.727.00685.832.00812.8
Slip On Flanges - ANSI B16.5 Class 300lbs
CD
BF G J A
I 0.06 in(1.6 mm)
15
ALFA UK LTDFLANGESFLANGES
Blind Flanges - ANSI B16.5 Class 150lbs
C
G J A
I 0.06 in(1.6 mm)
Pipe Flange Data
Nom
inal
Pip
e S
ize
Drilling Data WeightRaisedFace
A C G H I JNumberof Holes
kg/peice
FaceDiameter
inmm
Bolt HoleDiameter
inmm
OverallDiameter
inmm
OutsideDiameter
inmm
inmm
Diameterof Circleof Holes
inmm
FlangeThickness
min
½
¾
1
1¼
1½
2
2½
3
3½
4
5
6
8
10
12
14
16
18
20
24
4
4
4
4
4
4
4
4
8
8
8
8
8
12
12
12
16
16
20
20
0.42
0.61
0.86
1.17
1.53
2.42
3.94
4.93
6.17
7.00
8.63
11.3
19.6
28.8
43.2
58.1
76.0
93.7
122
185
0.84021.301.05026.701.31533.401.66042.201.90048.302.37560.302.87573.003.50088.904.000101.64.500114.35.563141.36.625168.38.625219.110.75273.012.75323.814.00355.616.00406.418.00457.220.00508.024.00609.6
3.50088.903.88098.604.250108.04.620117.35.000127.06.000152.47.000177.87.500190.58.500215.99.000228.610.00254.011.00279.413.50342.916.00406.419.00482.621.00533.423.50596.925.00635.027.50698.532.00812.8
0.44011.200.50012.700.56014.200.62015.700.69017.500.75019.100.88022.400.94023.900.94023.900.94023.900.94023.901.00025.401.12028.401.19030.201.25031.751.38035.101.44036.601.56039.601.69042.901.88047.80
1.38035.101.69042.902.00050.802.50063.502.88073.153.62091.904.120104.65.000127.05.500139.76.190157.27.310185.78.500215.910.62269.712.75323.915.00381.016.25412.818.50469.921.00533.423.00584.227.25692.2
0.62015.700.62015.700.62015.700.62015.700.62015.700.75019.100.75019.100.75019.100.75019.100.75019.100.88022.400.88022.400.88022.401.00025.401.00025.401.12028.401.12028.401.25031.751.25031.751.38035.10
2.38060.452.75069.853.12079.253.50088.903.88098.604.750120.75.500139.76.000152.47.000177.87.500190.58.500215.99.500241.311.75298.514.25362.017.00431.818.75476.321.25539.822.75577.925.00635.029.50749.3
16
ALFA UK LTDFLANGESFLANGES
Blind Flanges - ANSI B16.5 Class 300lbs
Pipe Flange Data
Nom
inal
Pip
e S
ize
Drilling Data WeightRaisedFace
A C G H I JNumberof Holes
kg/peice
FaceDiameter
inmm
Bolt HoleDiameter
inmm
OverallDiameter
inmm
OutsideDiameter
inmm
inmm
Diameterof Circleof Holes
inmm
FlangeThickness
min
½
¾
1
1¼
1½
2
2½
3
3½
4
5
6
8
10
12
14
16
18
20
24
0.84021.301.05026.701.31533.401.66042.201.90048.302.37560.302.87573.003.50088.904.000101.64.500114.35.563141.36.625168.38.625219.110.75273.012.75323.814.00355.616.00406.418.00457.220.00508.024.00609.6
1.38035.101.69042.902.00050.802.50063.502.88073.153.62091.904.120104.65.000127.05.500139.76.190157.27.310185.78.500215.910.62269.712.75323.915.00381.016.25412.818.50469.921.00533.423.00584.227.25692.2
4
4
4
4
4
8
8
8
8
8
8
12
12
16
16
20
20
24
24
24
0.64
1.11
1.39
1.79
2.66
3.18
4.85
6.81
8.71
11.5
15.6
20.9
34.3
53.3
78.8
105
137
175
221
339
3.75095.204.620117.34.880123.95.250133.36.120155.46.500165.17.500190.58.250209.59.000228.610.00254.011.00279.412.50317.515.00381.017.50444.520.50520.723.00584.225.50647.728.00711.230.50774.736.0
914.4
0.56014.200.62015.700.69017.500.75019.000.81020.600.88022.301.00025.401.12028.401.19030.201.25031.701.38035.001.44036.501.62041.101.88047.702.00050.802.12053.802.25057.152.38060.452.50063.502.75069.85
0.62015.700.75019.000.75019.000.75019.000.88022.300.75019.000.88022.300.88022.300.88022.300.88022.300.88022.300.88022.301.00025.401.12028.401.25031.701.25031.701.38035.001.38035.001.38035.001.62041.10
2.62066.553.25082.503.50088.903.88098.504.500114.35.000127.05.880149.36.620168.17.250184.17.880200.19.250234.910.62269.713.00330.215.25387.317.75450.820.25514.322.50571.524.75628.627.00685.832.00812.8
C
G J A
I 0.06 in(1.6 mm)
17
ALFA UK LTDFLANGESFLANGES
WELD NECK FLANGESSLIP-ON FLANGES
BLIND FLANGES
16 BARAcc. to BS 4504
NominalBore*
Diameterof
Bolts*
No. ofHoles
ApproximateWeight (Kgs)
DIN2543
DIN2633
OutsideDiameter*
D K
PitchCircle
Diameter*
15
20
25
95
105
115
65
75
85
M12
M12
M12
4
4
4
0.72
1.01
1.23
0.648
0.952
1.14
32
40
50
140
150
165
100
110
125
M16
M16
M16
4
4
4
1.8
2.09
2.88
1.69
1.86
2.53
65
80
100
185
200
220
145
160
180
M16
M16
M16
8
8
8
3.66
4.77
5.65
3.06
3.7
4.62
125
150
200
250
285
340
210
240
295
M16
M20
M20
8
8
12
8.42
10.4
16.1
6.3
7.75
11
250
300
350
405
460
520
355
410
470
M24
M24
M24
12
12
16
24.9
35.1
47.8
15.6
22
31.2
400
450
500
580
640
715
525
585
650
M27
M27
M30
16
20
20
63.5
85
102
39.3
55
61
600
700
800
840
910
1025
770
840
950
M33
M33
M36
20
24
24
900
1000
1125
1255
1050
1170
M36
M39
28
28
Dimensions in mm.
18
ALFA UK LTDFLANGESFLANGES
WELD NECK FLANGESSLIP-ON FLANGES
BLIND FLANGES
25 BARAcc. to BS 4504
NominalBore*
Diameterof
Bolts*
No. ofHoles
ApproximateWeight (Kgs)
DIN2544
DIN2634
OutsideDiameter*
PitchCircle
Diameter*
15
20
25
95
105
115
65
75
85
M12
M12
M12
4
4
4
0.81
1.24
1.38
0.746
1.06
1.29
32
40
50
140
150
165
100
110
125
M16
M16
M16
4
4
4
2.03
2.35
3.2
1.88
2.34
2.82
65
80
100
185
200
235
145
160
190
M16
M16
M20
8
8
8
4.29
5.88
7.54
3.74
4.75
6.52
125
150
200
270
300
360
220
250
310
M24
M24
M24
8
8
12
10.8
14.5
22.3
9.07
11.8
17
250
300
350
425
485
555
370
430
490
M27
M27
M30
12
16
16
33.5
46.3
68
24.4
31.2
47.2
400
450
500
620
670
730
550
600
660
M33
M33
M33
16
20
20
89.7
115
138
61.7
72
89.6
600
700
800
845
960
1085
770
875
990
M36
M39
M45
20
24
24
104
136
186
900
1000
1185
1320
1090
1210
M45
M52
28
28
236
307
Dimensions in mm.
19
D K
BUTTWELD FITTINGS & FLANGES
ALFA UK LTD