BS EN 14359:2006 pdf download
BS EN 14359:2006 pdf download.Gas-loaded accumulators for fluid power applications.
1.2 BS EN 14359 applies to the l’ollowfrlg types of coniponents, defined as the pessurecontaining envelope of gas-loaded accumulators:
bladder type;
diaphragm type:
— piston type;
— transfer type;
gas bottles used top additional gas capacity,
They consist of one or several parts pined together by a variety of mechanical means and by welding.
t3 This European Standard applies to gasloaded accumulators which operate with the following conditions:
— subject to an internal gauge pressure greater than 0.5 bar.
— working temperature of not lower than —50 C and not higher than +200 C;
containing Group 2 liquids and gases as defined wi the Pressure Equipment Directive 971231EC, It does not apply to:
— accumulators fgr use witi, dangerous fluids (see NOTE 1).
NOTE I Fbjid power appbcatlons utilize non-dangerous fluids as categorized in ISO 6743-4 in aolibon to an inert gas (e.g. nitrogen) wtd is used as the pre-charging medium.
NOTE 2 There are no design limits to the volume of the accumulator
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies, For undated references, the latest edition of the referenced document (including any amendments) applies
EN 1043-1. Destructive tests on welds in metallic materials — Hardness testing — Part 1: Hardness test on arc welded joints
EN 1968:2002. Transportable gas cylinders — Periodic ,nspection and testing of seamless steel gas cylinders
EN 10002-1, Metallic materials — Tensile testing — Part 1: Method of test at ambient temperature
EN 10045.1. Metallic materials — Charpy tmpacl test Part 1: Test method
EN 10204:2004. Metallic products — Types of inspection documents
EN 13018, Non-destructive testing — Vsuai testing — General pnncdpies
EN 13445-2:2002, Unfired pressure vessels — Part 2: Materials
EN 13445-3:2002. Unfired pressure vessels — Part 3: Design
EN 13445-4. Unfired pressure vessels — Part 4: Fabrication
EN ISO 898-1:1999, Mechanical properties of fasteners made of carbon steel and alloy steel — Part
1: Bolts, screws and studs (ISO 898-1:1999)
EN ISO 6506-1. Metallic materials — Brinell hardness test — Part 1: Test method
(ISO 6506-1:2005)
EN ISO 6506-2, Metallic materials — Brinell hardness test — Part 2: Verification and calibration of testing machines (ISO 6506-2:2005)
EN ISO 6506-3. Metallic materials — BnneV hardness test — Part 3: Calibration of reference blocks (ISO 6506-3:2005)
EN ISO 15614-1, Specification and qualification of welding procedures for metallic materials — Welding procedure test — Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys (ISO 15614-1:2004)
ISO 262, ISO general-purpose metric screw threads — Selected sizes fo, screws, bolts and nuts
ISO 9110-1. Hydraulic fluid power — Measurement techniques — Past 1: General measurement principles
ISO 9110-2. Hydraulic fluid power — Measurement techniques — Part 2: Measurement of average steady-state pressure in a closed conduit
ISO 10771-I, Hydraulic fluid power — Fatigue pressure testing of metal pressure-containing envelopes — Part 1: Test method
3.1.2
bladder accumulator
gas-loaded accumulator consisting of pressure-retaining shell, either spun-forged from seaniless tube, hammer-forged from hollow bar or of welded construction, in which the liquid and gas are separated by a flexible bag or bladder normally retained at one end of the shell
3.1.3
diaphragm accumulator
gas-loaded accumulator consisting of pressure-retaining shell assembly, In which the construction can either be screwed or welded, with Integral ports in which the liquid and gas are separated by a flexible membrane normally retained at its largest diameter to the shell
3.1.4
piston accumulator
gas-loaded accumulator consisting of cylinder body and end cap assemblies in which the liquid arid gas are separated by a rigid sliding piston
3.1.5
transfer type accumulator
gasoaded accumulator with a port for connecting additional gas capacity from one or more gas bottle(s)
3.1.6
gas bottle
inter-connected pressure vessels consisting of body and, depending upon construction, port assemblies used to provide additional gas capacity and communicating with the gas chamber of the accumulator by means of a pipe connection.