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VECTOR SPO compact flange
Save weight, space, time and money !
SPO® Compact Flange
The proven new standard in compact sealing technology delivering weight and spaceadvantages while ensuring absolute integrity for all critical mechanical joints.
The SPO Compact Flange has been used across the
globe since 1989, offshore, onshore and subsea, offering
significant weight and space savings over conventional
flanges, leak-free joint integrity and therefore is the most
effective environmentally friendly piping joint available
today. Its double sealing action prevents hydrocarbon
releases, addressing health and safety issues and concerns.
Typically weighing between 70 - 80% less than a conven-
tional flange, the SPO Compact Flange is designed using
state-of-the-art finite element analysis and is in full
accordance with ASME VIII, Div 2 provisions and is in full
acceptance with ANSI/ASME B31.3.
Type Approval according ASME VIII-Div2
Compact through design
Highly reliable with a probability of leakage in the same
range as a pipe-girth weld, the SPO Compact Flange has
been subjected to an intensive, full-scale verification and
testing programme. Finite element analysis and full scale
testing was used in pre-qualification for riser installations.
There was close correlation between FEA and full scale
test results.
The full testing procedure comprised :
• Multiple make-up, break-out and interchangeability
• Combined external loading and hydrostatic pressure tests as
well as high pressure gas tests
• Pressure & temperature cycling tests
• Fatigue test simulating 150 years of riser exposure
• Extended fatigue test to failure
• Fire tests according to API Specification 6FB
• Burst tests
VECTOR
reusable metal to metal sealring
double sealing forinternal pressure
environmental seal
FEA plot for 16” SPO CF WN CL2500 ►
Benefits
Many advantages over conventional flanges
Up to 82% lighter and 60% smaller than a comparable ANSI or API flange !
• Smaller and lighter The SPO Compact flange is a smaller and lighter proven
alternative to conventional ASME flanges (see comparison
below). Significantly reduced dimensions and weight allows
more processing equipment in already restricted locations.
• Corrosion/erosion prevention No corrosion/erosion problems on SPO compact flange faces .
• Fully flush bore The faces have full contact at the internal bore. There is no
discontinuity which can disturb the flow.
• Superior sealing
High integrity product, providing a 100% leak free connection
protecting the environment. Often used in critical areas where
conventional flanges are not accepted.
• Maintenance Free
No re-tightening of bolts required.
• Easy, quick and reliable make-up Compact bolt tensioners & standard torque tools are available
for easy make-up. Compact flanges require less time to make-
up than conventional flanges.
• Static connection The only flange meeting the strict design requirements in
DNV-OS-F201 (Dynamic Risers) and ISO 13628-7.
• A wider range of pressure classes and sizes than any other flange standard • Swivel flanges available in all sizes and pressure classes • Special design available upon request
• Reuseable metal sealrings
• Excellent load carrying capabilities
• Available in all metal types
lowering initial capital costs due to major overall space and weight savings on the topside, additional savings when high pressure or exotic metals are specified
reducing operational cost due to maintenance free connection eliminating down-time costs (no leaks, no lost production)
1
2
3
save life-cycle costs, by :
SPO Compact Flange6” welding neck CLASS 2500Weight: 32kg
Conventional Flange6” welding neck CLASS 2500Weight: 172kg
SPO Compact Flange 6” welding neck CLASS 2500Weight : 32kg (single flange)Weight : 81kg (assembly weight)
Conventional Flange 6” welding neck CLASS 2500Weight : 172kg (single flange)Weight : 409kg (assembly weight)
smaller outside diameter(up to 40% space saving)
smaller face2face (assembly length)
(up to 60% space saving)
AN
SISP
O
SAVESPACE
up to 60%
SAVEWEIGHTup to 82%
® SPO is a trade mark of Vector AS (Norway pending other territories) ™ VECTOR and the Vector style are trade marks of the Vector Group
Superior performance
Dynamic loading does not have an impact on the SPO Compact flange, however, on the ASME flange the bolting may loosen and the flange will start leaking (when bolting hasn’t been retightened within due time).
Triple sealing performance !
A true static connection
The flange’s static behaviour under any design load condition
ensures that neither dynamic, nor static loading, will degrade
the seal performance or other characteristics within the
capacity of the corresponding pipe. Furthermore, the bolted
joint fatigue life exceeds the fatigue life of the adjoining welded
pipe. This high performance is achieved through its unique
design and full flange face contact. Due to the high preloading
of the bolts, no adjustment or retightening is required in
service. Indeed, the SPO Compact Flange has been successfully
deployed in temperatures ranging from -200 °C to +720 °C with
absolutely no need for bolt retightening.
Bolting may loosen and may cause leakage
Seal N° 3Environmental Seal
Flange Sealring Seal N° 1Additional
Sealing Barrier
Seal N° 2Primary Seal
StudNut
the SPO effective sealing system
Three effective seals in sequence providing joint integrity and safety
• SPO compact flange was developed by Steelproducts
Offshore A/S, using extensive testing and finite element
analysis.
• First used for a workover riser in 1989 and subsequently for
production and export risers. Currently over 100,000 SPO
compact flanges in service.
• One sealring size for each nominal pipe size.
• The SPO compact flange has two independent seals in
series together with an additional environmental seal
(see below image).
• Accommodates external loads, valve configurations and
standard make-up tools.
• Designed to be used in temperatures ranging from -200°C
to 720°C.
• Designed as a static connection, removing the disadvan-
tages provided by conventional flanges such as :
1. Gasket relaxation 4. Bolt bending
2. Cyclic flange rotation 5. Non-uniform bolt load
3. Flange separation
• SPO compact flange is qualified for and widely utilised for
sub-sea (please visit our website to find out more).
The metal sealring, the heart of the SPO Compact Flange left IX sealring - right HX sealring, both with profile details
Documentation
Sizes, pressure classes and material grades
Common* Materials for SPO Compact Flange applications
Material Group SPO Compact Flange Sealring Bolting
Carbon Steel
A105NA350 LF2A694 F52A694 F60A694 F65AISI 4130 (Low Alloy)
AISI 4140
A193 B7/7M A193 B16A320 L7/7MA320 L43 A320 B8M CL2 A453 Gr660
Stainless steel
A182 F316A182 F44 (6Mo)A182 F49 (SuperAustenitic)A182 F51 (Duplex)A182 F53/F55 (Super Duplex)
A182 F51 (Duplex)A564 630 (17-4 PH) B564 Alloy 625
* for other material grades please contact us
Pressure Class Size Range
150 Lbs 1/2” - 60” *
300 Lbs 1/2” - 60” *
600 Lbs 1/2” - 48” *
900 Lbs 1/2” - 48” *
1500 Lbs 1/2” - 48” *
2500 Lbs 1/2” - 24” *
4500i Lbs (520bar) 1/2” - 24” *
5000 psi 1/2” - 24” *
10000 psi 1/2” - 24” *
15000 psi 1/2” - 24” *
* for bigger sizes please contact us
NEW
NEW
NEW
Suitable for a wide range of industries
Examples of applications where the SPO compact flange was the preferred type of connection.
Dynamic Product Search “find it the easy way”.A unique quick way to search for dimensional and weight data for the SPO compact flange.
Looking for technical information ? Go visit www.vectorint.com
Easy printable PDF documentation :download electronical printable versions of : dimension and weight tables, pressure & temperature ratings, assembly & disassembly procedures, designers manual, certificates,...and lots of other SPO related documentation.
VECTOR SPO compact flange : Dimensional tables Class 150
Nominal SizeFlange Dimensions Bolting Data
A B C D E G L N R O P Q No. SizeNPS DN mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch Bolts inch
1/2 15 21.3 0.84 17.1 0.67 15 0.59 93 3.66 40 1.57 49 1.93 22 0.87 17 0.67 28 1.09 36 1.42 67.3 2.65 15 0.59 4 1/2
3/4 20 26.7 1.05 22.5 0.89 15 0.59 98 3.86 40 1.57 49 1.93 31 1.22 18 0.71 28 1.09 36 1.42 72.7 2.86 15 0.59 4 1/2
1 25 33.4 1.31 27.9 1.10 15 0.59 105 4.13 40 1.57 50 1.97 39 1.54 19 0.75 28 1.10 36 1.42 79.4 3.13 15 0.59 4 1/2
1 1/2 40 48.3 1.90 42.8 1.69 15 0.59 120 4.72 41 1.61 51 2.01 52 2.05 22 0.87 29 1.14 36 1.42 94.3 3.71 15 0.59 4 1/2
2 50 60.3 2.37 54.8 2.16 15 0.59 132 5.20 42 1.65 53 2.09 67 2.64 23 0.91 30 1.19 36 1.42 106.3 4.19 15 0.59 4 1/2
2 1/2 65 73.0 2.87 66.9 2.63 16 0.63 145 5.71 43 1.69 54 2.13 80 3.15 23 0.91 32 1.24 36 1.42 119.0 4.69 15 0.59 4 1/2
3 80 88.9 3.50 82.8 3.26 18 0.71 161 6.34 46 1.81 62 2.44 94 3.70 24 0.94 39 1.54 36 1.42 134.9 5.31 15 0.59 8 1/2
4 100 114.3 4.50 108.2 4.26 22 0.87 186 7.32 51 2.01 70 2.76 122 4.80 25 0.98 42 1.64 36 1.42 160.3 6.31 15 0.59 8 1/2
5 125 141.3 5.56 134.5 5.30 25 0.98 213 8.39 55 2.17 77 3.03 149 5.87 29 1.14 48 1.88 36 1.42 187.3 7.37 15 0.59 12 1/2
6 150 168.3 6.63 161.5 6.36 28 1.10 240 9.45 60 2.36 80 3.15 178 7.01 32 1.26 50 1.97 36 1.42 214.3 8.44 15 0.59 12 1/2
8 200 219.1 8.63 211.6 8.33 26 1.02 294 11.57 53 2.09 81 3.19 232 9.13 33 1.30 49 1.92 36 1.42 268.1 10.56 15 0.59 12 1/2
10 250 273.1 10.75 264.7 10.42 32 1.26 355 13.98 60 2.36 87 3.43 293 11.54 38 1.50 54 2.12 36 1.42 329.3 12.96 15 0.59 16 1/2
12 300 323.9 12.75 314.8 12.39 35 1.38 403 15.87 64 2.52 92 3.62 340 13.39 42 1.65 58 2.27 36 1.42 376.7 14.83 15 0.59 20 1/2
14 350 355.6 14.00 346.0 13.62 38 1.50 437 17.20 67 2.64 96 3.78 375 14.76 44 1.73 62 2.43 36 1.42 411.5 16.20 15 0.59 20 1/2
16 400 406.4 16.00 396.8 15.62 42 1.65 505 19.88 73 2.87 103 4.06 430 16.93 48 1.89 69 2.72 44 1.73 473.4 18.64 18 0.71 20 5/8
18 450 457.2 18.00 447.6 17.62 46 1.81 552 21.73 77 3.03 110 4.33 478 18.82 52 2.05 75 2.96 44 1.73 520.9 20.51 18 0.71 20 5/8
20 500 508.0 20.00 496.9 19.56 50 1.97 606 23.86 82 3.23 118 4.65 532 20.94 56 2.20 82 3.23 44 1.73 574.7 22.63 18 0.71 24 5/8
22 550 558.8 22.00 547.7 21.56 54 2.13 661 26.02 87 3.43 125 4.92 586 23.07 59 2.32 89 3.50 44 1.73 629.1 24.77 18 0.71 28 5/8
24 600 609.6 24.00 596.9 23.50 59 2.32 730 28.74 93 3.66 133 5.24 641 25.24 63 2.48 97 3.82 52 2.05 693.0 27.28 22 0.87 24 3/4
26 650 660.4 26.00 644.6 25.38 64 2.52 784 30.87 98 3.86 141 5.55 695 27.36 66 2.60 105 4.13 52 2.05 746.8 29.40 22 0.87 24 3/4
28 700 711.2 28.00 695.4 27.38 68 2.68 839 33.03 103 4.06 149 5.87 749 29.49 70 2.76 112 4.40 52 2.05 801.2 31.54 22 0.87 28 3/4
30 750 762.0 30.00 746.2 29.38 72 2.83 893 35.16 108 4.25 156 6.14 804 31.65 73 2.87 119 4.67 52 2.05 855.5 33.68 22 0.87 32 3/4
32 800 812.8 32.00 797.0 31.38 76 2.99 945 37.20 113 4.45 164 6.46 856 33.70 76 2.99 125 4.93 52 2.05 908.0 35.75 22 0.87 36 3/4
34 850 863.6 34.00 847.8 33.38 79 3.11 998 39.29 118 4.65 170 6.69 909 35.79 79 3.11 131 5.15 52 2.05 960.5 37.81 22 0.87 40 3/4
36 900 914.4 36.00 898.6 35.38 84 3.31 1059 41.69 123 4.84 176 6.93 955 37.60 82 3.23 138 5.42 61 2.40 1016.6 40.02 25 0.98 32 7/8
38 950 965.2 38.00 946.1 37.25 88 3.46 1114 43.86 128 5.04 184 7.24 1010 39.76 85 3.35 145 5.70 61 2.40 1071.6 42.19 25 0.98 36 7/8
40 1000 1016.0 40.00 996.9 39.25 92 3.62 1172 46.14 133 5.24 192 7.56 1067 42.01 88 3.46 152 5.99 61 2.40 1129.2 44.46 25 0.98 40 7/8
42 1050 1066.8 42.00 1047.7 41.25 95 3.74 1219 47.99 137 5.39 197 7.76 1114 43.86 91 3.58 157 6.17 61 2.40 1176.2 46.31 25 0.98 44 7/8
44 1100 1117.6 44.00 1098.5 43.25 99 3.90 1271 50.04 141 5.55 204 8.03 1166 45.91 95 3.74 163 6.42 61 2.40 1228.3 48.36 25 0.98 44 7/8
46 1150 1168.4 46.00 1149.3 45.25 102 4.02 1323 52.09 146 5.75 210 8.27 1218 47.95 98 3.86 168 6.63 61 2.40 1280.3 50.41 25 0.98 48 7/8
SPO® is a Registered Trade Mark of Vector Group
SPO com
pact flange : Dimensional tables Class 150
VECTOR
B
A
P
D
CE
Q Q
C
B
A
P
D
L
D
P
Q
C
Q
D
P
N
P
D
B
A
Q
RG
B
P
D
Q
N
P
Q
B
O
1
SPO Weld Neck SPO Swivel SPO Blind SPO Integral SPO Paddle Blank SPO Paddle Spacer SPO Rigid Interface
NOTES:1) Values for B give max bore for SPO Compact Flange standard dimensions2) Metric dimensions are governing. Imperial dimensions for info.
SPO Dimensions table, downloadable from our website
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Because of the SPO Compact Flange’s superior capabilities it has become widely used in many highly demanding applications
such as oil and gas topside, pipeline risers, sub-sea and demanding land based process plants.
Gas Injection applicationsSnorre B platform, North Sea
Operator : Statoil
High Temp applications Operator : Ineos Norway
Cryogenic applicationsLeaking conventional flanges vs.
leakfree SPO compact flange.
Riser applicationsVolve Field, North Sea
Operator: Statoil
ConventionalSPO
edition 07/2010 © Vector AS 2010
connecting industry globallyVECTOR
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