The “ball” type coupling - Tiêu chuẩn iso tr 17784- 123docz.net

The ball type coupling is a kind of coupling which, before it is connected, can, to some extent, follow the misalignment of the hose. The coupling consists of three parts, namely a ball, a clamp and a so-called cup.

The coupling's concave and convex conical design can follow the misalignment. The two halves of the coupling are kept together by the clamp. The material from which the coupling is made is cold-rolled steel which is black (weldable) or galvanized [either hot-dip or not (not weldable)]. See Figures 57 and 58.

Figure 57 — Cup piece and clamp Figure 58 — Ball

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7.4.10 “French” coupling or “Guillemin” coupling

A symmetrical coupling made of stainless steel or aluminium or polypropylene is known as the “French”

coupling.

The coupling is closed by placing the two coupling pieces together and giving them a quarter turn. It is secured by tightening a nut located behind one of the coupling pieces. This does not mean that a retaining nut is a standard item on this type of coupling. The supplier should be consulted. See Figures 59 and 60.

Figure 59 — “French” coupling half with external thread

Figure 60 — “French” coupling half with internal thread

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Bibliography

ISO standards

[1] ISO 1307, Rubber and plastics hoses for general-purpose industrial applications — Bore diameters and tolerances, and tolerances on length

[2] ISO 1401, Rubber hoses for agricultural spraying

[3] ISO 1402, Rubber and plastics hoses and hose assemblies — Hydrostatic testing

[4] ISO 1403, Rubber hoses, textile-reinforced, for general-purpose water applications — Specification [5] ISO 1436-1, Rubber hoses and hose assemblies — Wire-braid-reinforced hydraulic types —

Specification — Part 1: Oil-based fluid applications

[6] ISO 1746, Rubber or plastics hoses and tubing — Bending tests

[7] ISO 1823-1, Rubber hoses and hose assemblies — Part 1: On-shore oil suction and discharge — Specification

[8] ISO 1823-2, Rubber hoses and hose assemblies — Part 2: Ship/dockside discharge — Specification [9] ISO 1825, Rubber hoses and hose assemblies for aircraft ground fuelling and defuelling —

Specification

[10] ISO 2398, Rubber hose, textile-reinforced, for compressed air — Specification

[11] ISO 2928, Rubber hoses and hose assemblies for liquified petroleum gas (LPG) in the liquid or gaseous phase and natural gas up to 25 bar (2,5 MPa) — Specification

[12] ISO 2929, Rubber hoses and hose assemblies for bulk fuel delivery by truck — Specification

[13] ISO 3253, Gas welding equipment — Hose connections for equipment for welding, cutting and allied processes

[14] ISO 3821, Gas welding equipment — Rubber hoses for welding, cutting and allied processes [15] ISO 3861, Rubber hoses for sand and grit blasting — Specification

[16] ISO 3862-1, Rubber hoses and hose assemblies — Rubber-covered spiral-wire-reinforced hydraulic types — Specification — Part 1: Oil-based fluid applications

[17] ISO 3949, Plastics hoses and hose assemblies — Thermoplastics, textile-reinforced, hydraulic type — Specification

[18] ISO 3994, Plastics hoses — Helical-thermoplastic-reinforced thermoplastics hoses for suction and discharge of aqueous materials — Specification

[19] ISO 3996, Road vehicles — Brake hose assemblies for hydraulic braking systems used with non- petroleum-base brake fluid

[20] ISO 4023, Rubber hoses for steam — Test methods

[21] ISO 4079-1, Rubber hoses and hose assemblies — Textile-reinforced hydraulic types — Specification — Part 1: Oil-based fluid applications

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[22] ISO 4080, Rubber and plastic hoses and hose assemblies — Determination of permeability to gas [23] ISO 4081, Rubber — Coolant hoses and tubing for use on private cars and light commercial

vehicles — Specification

[24] ISO 4132, Unplasticized polyvinyl chloride (PVC) and metal adaptor fittings for pipes under pressure — Laying lengths and size of threads — Metric series

[25] ISO 4639-1, Rubber tubing and hoses for fuel circuits for internal-combustion engines — Specification — Part 1: Conventional liquid fuels

[26] ISO 4639-2, Rubber tubing and hoses for fuel circuits for internal-combustion engines — Specification — Part 2: Oxygenated fuels

[27] ISO 4639-3, Rubber tubing and hoses for fuel circuits for internal-combustion engines — Specification — Part 3: Oxidized fuels

[28] ISO 4641, Rubber hoses for water suction and discharge — Specification [29] ISO 4642, Rubber products — Hoses, non-collapsible, for fire-fighting service

[30] ISO 4671, Rubber and plastics hoses and hose assemblies — Methods of measurement of dimensions [31] ISO 4672, Rubber and plastics hoses — Sub-ambient temperature flexibility tests

[32] ISO 5031, Continuous mechanical handling equipment for loose bulk materials — Couplings and hose components used in pneumatic handling — Safety code

[33] ISO 5359, Low-pressure hose assemblies for use with medical gases

[34] ISO 5771, Rubber hose and hose assemblies for transferring anhydrous ammonia — Specification [35] ISO 5772, Rubber hoses and hose assemblies for measured fuel dispensing — Specification [36] ISO 5774, Plastics hoses, textile reinforced, for compressed air — Specification

[37] ISO/TR 5924, Fire tests — Reaction to fire — Smoke generated by building products (dual-chamber test)

[38] ISO/TR 5987, Inland navigation — Water fire-fighting system — Couplings of fire hoses — General technical requirements

[39] ISO 6120, Road vehicles — Brake hose assemblies for hydraulic braking systems used with petroleum-base brake fluid

[40] ISO 6134, Rubber hoses and hose assemblies for saturated steam — Specification

[41] ISO 6224, Plastics hoses, textile-reinforced, for general-purpose water applications — Specification [42] ISO 6772, Aerospace — Fluid systems — Impulse testing of hydraulic hose, tubing and fitting

assemblies

[43] ISO 6801, Rubber or plastics hoses — Determination of volumetric expansion

[44] ISO 6802, Rubber and plastics hose and hose assemblies with wire reinforcements — Hydraulic impulse test with flexing

[45] ISO 6803, Rubber or plastics hoses and hose assemblies — Hydraulic-pressure impulse test without flexing

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Specification for inlet hoses

[47] ISO 6805, Rubber hoses and hose assemblies for underground mining — Wire-reinforced hydraulic types for coal mining — Specification

[48] ISO 6806, Rubber hoses and hose assemblies for use in oil burners — Specification

[49] ISO 6807, Rubber hoses and hose assemblies for rotary drilling and vibration applications — Specification

[50] ISO 6808, Plastics hoses and hose assemblies for suction and low-pressure discharge of petroleum liquids — Specification

[51] ISO 6945, Rubber hoses — Determination of abrasion resistance of the outer cover

[52] ISO 7233, Rubber and plastics hoses and hose assemblies — Determination of suction resistance [53] ISO 7258, Polytetrafluoroethylene (PTFE) tubing for aerospace applications — Methods for the

determination of the density and relative density

[54] ISO 7313, Aircraft — High temperature convoluted hose assemblies in polytetrafluoroethylene (PTFE) [55] ISO 7326, Rubber and plastics hoses — Assessment of ozone resistance under static conditions [56] ISO/TR 7620, Rubber materials — Chemical resistance

[57] ISO 7662, Rubber and plastics hoses — Determination of abrasion of lining

[58] ISO 7751, Rubber and plastics hoses and hose assemblies — Ratios of proof and burst pressure to design working pressure

[59] ISO 8028, Rubber and/or plastics hose assemblies for airless paint spraying — Specification

[60] ISO 8029, Plastics hose — General purpose collapsible water hose, textile reinforced — Specification [61] ISO 8030, Rubber and plastics hoses — Method of test for flammability

[62] ISO 8031, Rubber and plastics hoses and hose assemblies — Determination of electrical resistance [63] ISO 8032, Rubber and plastics hose assemblies — Flexing combined with hydraulic impulse test (half-

omega test)

[64] ISO 8033, Rubber and plastics hose — Determination of adhesion between components

[65] ISO 8066-1, Rubber and plastics hoses and hose assemblies for automotive air conditioning — Specification — Part 1: Refrigerant 12

[66] ISO 8066-2, Rubber and plastics hoses and hose assemblies for automotive air conditioning — Specification — Part 2: Refrigerant 134a

[67] ISO 8207, Gas welding equipment — Specification for hose assemblies for equipment for welding, cutting and allied processes

[68] ISO 8308, Rubber and plastics hoses and tubing — Determination of transmission of liquids through hose and tubing walls

[69] ISO 8330, Rubber and plastics hoses and hose assemblies — Vocabulary

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[70] ISO 8331, Rubber and plastics hoses and hose assemblies — Guide to selection, storage, use and maintenance

[71] ISO/TR 8354, Rubber hoses and hose assemblies for underground mining — Textile-reinforced air and water type

[72] ISO 8575, Aerospace — Fluid systems — Hydraulic system tubing

[73] ISO 8580, Rubber and plastics hoses — Determination of ultra-violet resistance under static conditions [74] ISO 8789, Rubber hoses and hose assemblies for liquefied petroleum gas in motor vehicles —

Specification

[75] ISO 8829, Aerospace — Polytetrafluoroethylene (PTFE) hose assemblies — Test methods

[76] ISO 10960, Rubber and plastics hoses — Assessment of ozone resistance under dynamic conditions [77] ISO 11424, Rubber hoses and tubing for air and vacuum systems for internal-combustion engines —

Specification

[78] ISO 11425, Rubber hoses and hose assemblies for automobile power-steering systems — Specification

[79] ISO 11758, Rubber and plastics hoses — Exposure to a xenon arc lamp — Determination of changes in colour and appearance

[80] ISO 11759, Rubber hoses and hose assemblies for dispensing liquefied petroleum gases (LPGs) — Specification

[81] ISO 12170, Gas welding equipment — Thermoplastic hoses for welding and allied processes

[82] ISO 13774, Rubber and plastics hoses for fuels for internal-combustion engines — Method of test for flammability

[83] ISO 14113, Gas welding equipment — Rubber and plastics hoses assembled for compressed or liquefied gases up to a maximum design pressure of 450 bar

Other standards (used internationally)

[84] BS 336, Specification for fire hose couplings and ancillary equipment

[85] BS 5958-1, Code of practice for control of undesirable static electricity — Part 1: General considerations

[86] BS 5958-2, Code of practice for control of undesirable static electricity — Part 2: Recommendations for particular industrial situations

[87] DIN 86200, Fire extinguishing and wash deck installation — Hose couplings, armatures, hoses, accessories — Summary of types for shipbuilding

[88] NEN 3374, Fire fighting equipment — Fire hose couplings and ancillary equipment Non-standards publications

Publications concerning the contents of this Technical Report for which there are no known equivalent ISO publications available.

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Directorate-General of Labour, Dutch Ministry of Social Affairs2)

[90] Richtlinien Statische Elektrizitọt (Static electricity guidelines), 4th edition, 19803) (guidelines to avoid ignition risks as a result of electro-static charges), Chemical Industry Employers Liability Association, Guideline No. 4, 1980, published by Franz Spiller, 1 Berlin 36/Verlag Chemie GmbH, Weinheim Bergstrasse, Germany

[91] IMO (International Maritime Organization) Regulations

[92] Hose standards — Guide to purchasing, manufacturing and testing of loading and discharge hoses for offshore moorings, 4th edition, 1991, Oil Companies International Marine Forum (OCIMF), distributors:

Witherby & Co Ltd, 32 Aylesbury Street, London EC1R 0ET, UK

[93] Hose standards — Guide to the handling, storage, inspection and testing of hoses in the field, Oil Companies International Marine Forum (OCIMF), distributors: Witherby & Co Ltd, 32 Aylesbury Street, London EC1R 0ET, UK

[94] Labour Inspectorate Publications

[95] Model code of practice in the petroleum field (Institute of Petroleum) — Part 1: Electrical safety code, 6th edition, 1991, Elsevier Applied Science Publications, Crown House, Linton Road, Barking, Essex, 1G11 8JU, UK

2) In Dutch.

3) In German; it is possible that a later edition exists.

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