GWEC™ SPM & FPSO Topside Equipment

Introduction

Established in 1790 making chain, Griffin-Woodhouse Ltd. has an unrivalled manufacturing

history and is acknowledged as a market leader in the design, manufacture and supply of

specialist mooring systems. Our equipment, made according to high quality British Standards,

is exported world-wide.

Griffin-Woodhouse Ltd. works closely with its clients to engineer solutions that exceed

expectations. We offer a technical advisory service ranging from simple GA drawings, evaluating

component fit & operational suitability; to intricate 3D models, detailed FEA, prototyping and

product development. Our ability to deliver ‘Total Mooring Solutions’ is underpinned by an

extensive knowledge and experience developed over hundreds of years in a wide range of

markets including -

1 Global Oil & Gas Industry

1 International Port Authorities

1 Navies & Defence Ministries

1World-Wide Shipping & Ship Building

1 Engineering & Design Consultancies

1 Lifting Gear Specialists

Over 70% of turnover continues to be generated through export sales. Queen Elizabeth II, in

recognition of its continuing success, has presented Griffin-Woodhouse Ltd. her coveted Award

for Export Achievement on three separate occasions in 1983, 1997 & 1998, an accolade

achieved by very few companies.

If you require expert advice, solutions tailored to your needs or merely wish to source products

most suited to your budget, please contact us for further information.

SPM & FPSO Topside Equipment

Iss. 09/13

Contents

Page No.

Introduction 1

History 2

Quality Assurance 3

Mooring Equipment

Anti-Chafing Chains 4

Bridle Assemblies 6

HD Rope Shackles 7

Weak Links 8

Support, Pick-Up & Marker Buoys 10

Mooring Hawser Assemblies 12

Messenger & Pick-Up Lines 13

Floating Hose Accessories

Hose Pick-Up & Hang-Off Chains 14

Hose Floats 16

Spool Pieces 17

Camlock Couplings 18

Blind Flanges 19

Butterfly Valves 20

1

Introduction










markets including -













Introduction










markets including -













2

An Unrivalled Manufacturing History

The birth of British chain manufacturing coincides with registration of the first chain patent by

Philip White in 1634 and there is evidence the Timmington, Griffin and Woodhouse families

have been involved in chain making since the 18th century.

In 1790 J Wood Aston founded his firm making chain in Cradley Heath, which was subsequently

bought by William Griffin in 1893. William Griffin & Sons was later registered as a limited

company in 1915 as the business flourished during the First World War, employing over 200

people.

In 1860 Emmanuel Woodhouse similarly founded a firm making chain in Cradley Heath. The

1881 English Census details him as a 60 year old chain maker employing four men and two

boys. Woodhouse Bros. subsequently prospered under sons Caleb and Albert, eventually

employing over sixty chain makers manufacturing a range of sizes from 5 to 50mm diameter.

In 1942 Woodhouse Bros. joined forces with William Griffin & Sons during the Second World

War to manufacture the unique ‘Integral Stud Link Chain’ invented by John Timmington. Griffin-

Woodhouse Chain Cables Ltd. was registered in 1944 and later re-registered as Griffin-

Woodhouse Ltd. in 1965.

Many Patents have been granted and Trade Marks registered by the various companies

throughout the years. The current company logo includes the GWEC™, which was originally

registered in 1947.

In 1961 the business expanded further through purchase of local shackle manufacturer G &

H.C. Hackett Bros. and in 1968 an extensive refurbishment of the current Woods Lane site was

undertaken.

Having served the British market exclusively Griffin-Woodhouse Ltd. set about developing a global

presence in 1972 and today exports to over 50 countries world-wide. Local support is the

foundation of our global business. We have therefore spent considerable time and effort

developing agents with the knowledge, experience and ability to support both our clients and us.

In 1988 Griffin-Woodhouse Ltd. was acquired in its entirety by the Timmington family and

remains a private family business to-date.

3

Quality Assurance

Long before the introduction of recognised Quality Standards Griffin-Woodhouse Ltd. has

employed a robust Quality Management System (QMS). More recently the company has

chosen to establish and maintain a QMS in accordance with the requirements of BS EN ISO

9001:2008. Regular assessment is carried out under Management Review to ensure continuing

suitability, effectiveness, on-going improvement and integrity. This includes a review of the

company’s Quality Policy and associated Quality Objectives, which are communicated and

understood throughout the organisation.

Lloyds Register of Quality Assurance (LRQA) approves Griffin-Woodhouse Ltd. for manufacture

to ISO 9001:2008. Furthermore, Lloyds Register of Shipping approves Griffin-Woodhouse for

Proving of Class items.

All products supplied by Griffin-Woodhouse Ltd. are certified by our QMS as standard and, if

necessary, independently surveyed and certified by any member of the International Association

Classification Societies (IACS) including -

1 Lloyds Register of Shipping

1 American Bureau of Shipping

1 Det Norske Veritas

1 Bureau Veritas

abcdef

Anti-Chafing Chains

Griffin-Woodhouse Ltd. has supplied high quality mooring hardware to the offshore oil industry

since formation of the Oil Companies International Marine Forum (OCIMF) in 1970.

We offer standard anti-chafing configurations according to ‘OCIMF Recommendations for

Equipment Employed in Bow Mooring of Conventional Tankers at SPM’, but moreover special

arrangements to suit individual terminal operator’s needs including -

1 Modified OCIMF arrangements

1 Shell Material & Equipment Standards & Code ( MESC) catalogue items

1 ‘Special QRH Drop Links’ and many other bespoke arrangements

1 New configurations subject to 3D modelling & Finite Element Analysis (FEA) to verify

loading capabilities, operational suitability and component fit

The following standard configurations are available -

1 Chafe Chain A - per OCIMF 2007, 1993, 1988 & 1978 (Product Code STDR - 3040)

1 Chafe Chain B - per OCIMF 2007, 1993, 1988 & 1978 (Product Code STDR - 3041)

1 Chafe Chain C - per OCIMF 1993, 1988 & 1978 (Product Code STDR - 3042)

1 Chafe Chain D - per OCIMF 1988 & 1978 (Product Code STDR - 3043)

1 Chafe Chain E - per OCIMF 1988 & 1978 (Product Code STDR - 3044)

1 Chafe Chain F - per OCIMF 1988 & 1978 (Product Code STDR - 3045)

4

5

Anti-Chafing Chains

6

Bridle Assemblies(Product Code STDR - 3070)

Bridle Assemblies, intended to secure SPM topside mooring lines, are typically located at the

Catenary Anchor Leg Mooring (CALM) Buoy end. Available in a range of configurations to suit

single or tandem arrangements or otherwise in the following standard sizes -

1 SWL - 1000kN

1 SWL - 3000kN

1 SWL - 3750kN

1 SWL - 4000kN

Bespoke arrangements, designed to suit individual terminal operations, are subject to 3D

modelling & Finite Element Analysis (FEA) to verify loading capabilities, operational suitability

and component fit. Special coating systems also available.

7

Heavy Duty Rope Shackles(Product Code STDR - 3030)

Intended to connect a Mooring Hawser (via thimble) to the end link of an Anti-Chafing Chain or

Bridle Assembly, the HD Rope Shackle is manufactured from alloy material with a standard

safety factor 5:1. Double nut arrangement safeguards against accidental release, which is

further prevented by securing bolt assemblies. Bodies are supplied either galvanised or painted.

Rope Circ. SWL MBL Std. Dimensions Weight(Inch) (Ton) (Ton) A B C D E (Kgs)

7 - 8 20 100 38 44 102 229 102 14

8.5 - 10 34 170 52 65 140 285 130 30

11 - 13 60 300 64 76 175 350 165 65

14 - 15 85 425 76 90 220 390 178 87

16 - 18 110 550 89 102 254 430 216 146

19 - 21 130 650 102 114 280 480 235 194

22 - 24 180 900 121 133 300 600 266 354

25 - 27 225 1125 127 146 333 720 292 410

28 - 30 300 1500 140 165 366 850 330 560

Rope Circ. SWL MBL Special Dimensions Weight(Inch) (Ton) (Ton) A B C D E (Kgs)

18” 200 498 105 120 254 500 228 187

21” 200 498 115 125 280 500 238 223

15” 250 612 115 125 220 400 238 198

18” 250 612 125 130 254 500 238 248

8

Weak Link Connectors(Product Code STDR - 3060)

OCIMF Recommendations for Equipment Employed in Bow Mooring of Conventional Tankers

at SPM, 4th Edition, 2007, suggests that terminal operators ‘....positively protect from mooring

loads in excess of the minimum yield load through the application of weak links’.

The GWEC™ ‘Weak Link Connector’ is designed specifically to satisfy this requirement.

Intended to fit between end link of Shuttle Tanker Anti-Chafing Chain and HD Wide Body Rope

Shackle it addresses the need that (they) ‘....should be sited to prevent hawser whiplash…’

Shear pins are subject to Finite Element Analysis (FEA) to accurately model required breaking

loads prior to IACS independent verification of actual breaking trials within strict failure criteria

(+/-5%). Components are assembled in such a way and machined to extremely fine tolerances

so that load transfer is accurately maintained and controlled.

So far as we know Griffin-Woodhouse Ltd. is the only manufacturer currently offering an

independently approved ‘Weak Link System’.

9

Weak Link Connectors(Product Code STDR - 3060)

Terminals supplied to-date include -

1 Exxonmobil, FPSO Falcon, Yoho Terminal Nigeria

8 x 270T +/-5% Weak Links c/w ABS 3.1 Cert.

1 COTCO, FSO Kome-Kribi 1, Cameroon

4 x 200T +/-15% Weak Links c/w BV 3.1 Cert.

1 Total E&P, SBM Loading Buoy, Djeno Terminal Congo

3 x 1409kN +/-9% Weak Links c/w BV Class Cert. (2010)

2 x 1300kN +/-10% Weak Links c/w BV Class Cert. (2013)

1 GyunGsang, FPSO BP Skarv, Norway

3 x 297MT +/-5% Weak Links c/w DNV 3.1 Cert.

1 COTCO, FSO Kome-Kribi 1, Cameroon

5 x 200T +/-10% Weak Links c/w ABS 3.1 Cert.

1 Total E&P, Pazflor FPSO, Block 17 CLOV Angola

1 x 200T +/-5% Weak Link c/w BV Class Cert.

10

Support, Pick-Up & Marker Buoys

Available in ‘Chain Through’ or ‘Swivel Eye’ type, Support Buoys are manufactured only from

a polyethylene foam core coated by polyurethane elastomer skin. They are therefore highly

durable, being resistant to impact, abrasion, UV degradation and chemical attack. Available in

a range of colours but supplied in orange as standard, buoys can be made to specific

requirements but are standardised as detailed to suit most mooring arrangements. Other sizes

available on request.

(Product Code STDR - 3000)

STDR No. 3002 - 90 3000 - 1800 3000 - 2000 3000 - 2250 3000 - 2500 3000 - 2750

Nett Buoyancy (Kg) 90 1800 2000 2250 2500 2750

Length ‘A’ (mm) 665 2000 2000 2000 2000 2000

O/A Length ‘B’ (mm) 1000 2666 2666 2666 2666 2666

Diameter ‘C’ (mm) 515 1160 1250 1280 1400 1450

Weight in Air (Kg) 42 375 415 435 499 512



11

Support, Pick-Up & Marker Buoys

Available in Grade 2 or 3, 1.5m Support Buoy Chain Assemblies are supplied on request with

STDR - 3000 support buoys to facilitate their connection with the special end link of an anti-

chafing chain. Available in a variety of configurations to suit specific requirements but

standardised as detailed to suit most mooring arrangements.

SWL Chain Dia. Chain ‘D’ Shackle B/B Length Approx. Weight(mm) Grade (per Fed Spec.) (m) (Kg)

13.5T 26 2 13.5T 1.8 35

17T 26 3 17T 1.8 40

12

Mooring Hawser Assemblies

Mooring Hawsers, according to ‘OCIMF Guidelines for the Purchasing and Testing of SPM

Hawsers’, are available to suit any terminal operation. Single leg or grommet type with double

braid construction, in nylon (100% polyamide) c/w end terminations, PU encapsulation and

flotation to suit any arrangement. Load characteristics as detailed below (guidance only). Other

sizes available on request.

Dia. Circ. NDBS NDBS* Weight (mm) (Inch) (MT Min.) (MT Ave.) (Kg/m)

80 10 138 152 3.98

88 11 166 183 4.82

96 12 198 218 5.73

104 13 231 254 6.73

112 14 268 295 7.80

120 15 308 339 8.93

128 16 350 385 10.20

136 17 396 436 11.55

144 18 443 487 12.90

152 19 495 545 14.47

160 20 547 602 16.03

168 21 599 659 17.60

176 22 660 726 19.37

184 23 721 793 21.13

192 24 782 860 22.90

200 25 849 934 24.93

* NDBS - New Dry Breaking Strain (per ISO 2307:2005)

NWBS TCLL rate (73.41%)

13

Messenger & Pick-Up Lines

Floating Messenger & Pick-Up Lines are available in 8 & 12 strand construction high strength

polypropylene with a specific gravity 0.91. Made in configurations to suit specific terminal

operations, they are available in a variety of colours, highly resistant to abrasion and due to

their relative low weight, easy to handle. Load characteristics as detailed below (guidance only).

Other sizes available on request.

Dia. Circ. MBS (Kgf) MBS (Kgf) Weight (mm) (Inch) 8 Strand 12 Strand (Kg/m)

24 3 7648 8158 0.26

26 3¼ 8923 9483 0.31

28 3½ 10197 10809 0.35

30 3¾ 11421 12033 0.41

32 4 13460 14276 0.46

36 4½ 16315 17335 0.59

40 5 20394 21414 0.72

44 5½ 24065 25493 0.88

48 6 28552 30591 1.04

52 6½ 34160 36200 1.22

56 7 38239 40789 1.42

60 7½ 43338 45887 1.63

64 8 49456 50986 1.85

72 9 61183 64242 2.34

80 10 76479 81577 2.89

14

SWL(T) Gr.2 Gr.3

6, 8

& 10

12

16

Hose Pick-Up & Hang-Off Chains(Product Code STDR - 3100)

Intended to facilitate lifting and securing of Floating Hose String oil transfer systems, Hose Pick-

Up & Hang-Off assemblies are available in a variety of configurations to suit specific

requirements but standardised as detailed to suit typical hose sizes. All equipment is supplied

galvanised as standard.

Hose Size PL (kN) Dimensions (mm) Length L (m)

I/D Length Link Shackle Ring Hang- Pick-

(Ins.) (Ft.) d1 d2 d3 D1 d4 D2 d5 Off Up

25 9.14

30 5 150 210 19 21 23 25 22 125 30 10.67 1.5

35 12.19

25 9.14

30 8 201 281 22 24 26 28 25 125 36 10.67 1.5

35 12.19

25 9.14

30 11 278 389 26 28 32 35 32 135 42 10.67 1.5

35 12.19

25 9.14

20 30 15.5 367 514 30 33 36 42 38 135 46 10.67 1.5

35 12.19

15

Hose Pick-Up & Hang-Off Chains(Product Code STDR - 3100)

16

Hose Floats(Product Code STDR - 3120)

Hose Floats are manufactured from a polyethylene foam core coated by polyurethane

elastomer skin. They are therefore highly durable, being resistant to impact, abrasion, UV

degradation and chemical attack. Bumper strips are added for protection during installation and

a keyway for location on the hose collar. Floats and reducers can be made to suit specific

requirements including Marine Breakaway Couplings, but standardised as detailed to suit most

hose arrangements.

Type Nett Buoyancy Total Weight Dimensions (mm)(Kgs) (Kgs) in air K.I.D O.D W

471 80 56 471 835 450

495 114 67 495 904 500

581 130 80 581 990 500

697 190 92 697 1150 500

799 260 120 799 1250 600

876 281 128 876 1327 600

946 400 185 946 1346 850

17

Spool Pieces(Product Code STDR - 3111)

Spool Pieces, comprising two WNF Flanges, are manufactured from galvanised steel and

suitable for Class 150 ANSI, although Class 300 ANSI, DIN and other flange types are available.

Supplied with or without lifting lugs, which can be configured to suit specific requirements, spool

pieces are standardised as detailed to suit most arrangements.

Nom Flange Size Lug SWL Dimensions (mm)(Inch) (mm) (kN) A D E

6 150 40 279.4 177.8 24

8 200 40 342.9 203.2 24

10 250 40 406.4 203.2 24

12 300 80 482.6 228.6 38

16 400 80 596.9 254.0 38

20 500 120 698.5 289.0 38

18

Camlock Couplings(Product Code STDR - 3112)

Making and breaking hose and loading arm connections conventionally can be hazardous and

time-consuming however, by employment of a Camlock Coupling flanges are brought together

and automatically positioned within the cam blocks, taking seconds to lock each cam.

Disconnection is similarly swift and hazard-free.

A permanently positioned ‘O’ ring face seal forms a dependable, leak-proof connection and

prevents injury. The design makes it impossible to loosen during normal operating conditions

when there is pressure in the line. A round steel bar, or optional special locking wrench, is the

only tool needed to lock, tighten or release the cams.

All existing flange or pipe arrangements will accept a Camlock Coupling. The range includes -

1 Short Spool (Product Code STDR - 3112 - 1)

1 Studded (Product Code STDR - 3112 - 2)

1 Slip-On (Product Code STDR - 3112 - 3)

1 Weld Neck (Product Code STDR - 3112 - 4)

Materials include nickel plated & painted carbon steel or stainless steel, although other more

exotic materials can be supplied to special order. A wide variety of seals are also available to

suit the product in transfer. Other options include cam guards, lifting lugs and special paint

finishes. The standard Camlock Coupling is suitable for Class 150 ANSI flanges, although Class

300 ANSI, DIN and other flange types are available.

Standard and Lightweight Blind Flanges are available in either aluminium or galvanised steel

to prevent seawater ingress and provide protection when not in use. For further information

please refer to our Blind Flanges data sheet.

(Product Code STDR - 3112 - 1)

19

Blind Flanges

Blind Flanges (STDR - 3113) are manufactured from galvanised steel and suitable for Class

150 ANSI, although Class 300 ANSI, DIN and other flange types are available including a

lightweight version (STDR - 3114). Lightweight Blanking Flanges to suit Camlock Couplings

are available in galvanised steel (STDR - 3112 - 5) or aluminium (STDR - 3112 - 6) to prevent

seawater ingress and provide protection when not in use.

Nom Flange Size No. of Dimensions (mm)(Inch) (mm) Handles A D* E

6 150 1 279.4 12 38.1

8 200 1 342.9 12 44.5

10 250 1 406.4 12 44.5

12 300 1 482.6 12 50.8

16 400 2 596.9 16 57.2

20 500 2 698.5 22 63.5

* STDR - 3113, STDR 3112 - 5 & STDR 3112 - 6 (only)





20

Butterfly Valves(Product Code STDR - 3115)

Rubber Lined, Type ITS (Wafer Type) Butterfly Valves are suitable for Class 150 ANSI, although

Class 300 ANSI, DIN and other flange types are available. Manufactured in a range of sizes to

suit specific requirements but standardised as detailed to suit most hose arrangements. A

variety of seals are offered to suit the product in transfer.

Nom Flange Size Body Disc Shaft Liner Bearing(Inch) (mm) (ASTM A216 WCB) (Al. Bronze) (Monel) (NBR) (Bronze)

6 - 20 150 - 500 Cast Steel C95500 K500 Vulcanised RG7

Other Publications in the Range

Introduction






expectations. We offer a technical advisory service ranging from simple GA drawings,

evaluating component fit & operational suitability; to intricate 3D models, detailed FEA,

prototyping and product development. Our ability to deliver ‘Total Mooring Solutions’ is

underpinned by an extensive knowledge and experience developed over hundreds of years in

a wide range of markets including -

1

Global Oil & Gas Industry

1

International Port Authorities

1

Navies & Defence Ministries

1

World-Wide Shipping & Ship Building

1

Engineering & Design Consultancies

1

Lifting Gear Specialists







SPM & FPSO Topside Equipment

Iss. 09/13

Introduction











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1


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Anchor Chain & Accessories

Iss. 09/13

Introduction











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Mooring Chain & Accessories

Iss. 09/13

Introduction











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Ports & Terminals Equipment

Iss. 09/13

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Introduction










markets including -













Iss. 09/13

Documents

GWEC™ SPM & FPSO Topside Equipment