Please email enquiries to: email@example.com
If not re-direted automatically please click on the link : www.air-receivers.co.uk
Pressure vessels and Air Receivers previously made by Rednal can be supplied by Abbott & Co. (Newark) Ltd
Some company history on Rednal
23/11/12 REDNAL PNEUMATICS LTD (reg No.05506142) changed it’s name to BLUE PNEUMATICS LTD – same reg no 05506142
Email Enquiries to : firstname.lastname@example.org
Email Enquiries to : email@example.com
EN 13445 - Unfired Pressure Vessels is a standard that provides rules for the design, fabrication, and inspection of pressure vessels
EN 13445 consists of 7 parts:
Parts 7 and 9 do exist but they are merely technical reports.
EN 13445 was introduced in 2002 as a replacement for national pressure vessel design and construction codes and standards in the European Union and is harmonized with the Pressure Equipment Directive (97/23/EC or "PED"). New updated versions of all parts were published between 2009 and 2012.
The China Compulsory Certificate mark, commonly known as a CCC Mark, is a compulsory safety mark for many products imported, sold or used in the Chinese market. It was implemented on May 1, 2002 and became fully effective on August 1, 2003.
It is the result of the integration of China's two previous compulsory inspection systems, namely "CCIB" (Safety Mark, introduced in 1989 and required for products in 47 product categories) and "CCEE" (also known as "Great Wall" Mark, for electrical commodities in 7 product categories), into a single procedure.
De Dienst voor het Stoomwezen werd in 1855 opgericht. Het was in het Stoombesluit aangesteld als uitvoerende instantie van de Stoomwet. Tot de privatisering was het Stoomwezen onderdeel van het Directoraat-generaal van de Arbeid. Het Stoomwezen had inspecteurs in dienst die periodieke keuringen uitvoerden aan ketels en machines. Het instituut was onderverdeeld in aanvankelijk zes districten verspreid over het land, een aantal dat naderhand werd verkleind tot drie. De grenzen van de verschillende districten zijn in de loop der tijd ook gewijzigd. De inspecteurs rapporteerden in de negentiende eeuw ook over de erbarmelijke arbeidsomstandigheden waaronder de fabrieksarbeiders vaak werkten.
Le CODAP est un code proposant des règles de conception, calcul, construction et inspection pour les appareils à pression. Il s'agit d'un code de construction français, éventuellement traduit en anglais. Ce code permet de se conformer aux exigences de la Directive Européenne des Equipements sous Pression (Directive 97/23/CE). CODAP est un acronyme pour Code de Construction des Appareils à Pression non soumis à la flamme. D'une manière générale et comme la plupart des codes européens il propose une approche moins conservatrice pour le calcul des épaisseurs de paroi que les codes de construction ASME américains (American Society of Mechanical Engineers). L'approche du CODAP (et des codes de pays européens traitrant du même sujet) permet de concevoir, en définitive, des appareils à pression plus légers que ceux conçus par les codes ASME mais au prix de procédures et de processus d'examens, de contrôles et d'essais de matériaux, de procédés de fabrication, de mesures ainsi que de qualifications de personnels beaucoup plus draconniens.
Simple Pressure Vessels (SPV) Directive 2009/105/EC
Know more about the Simple Pressure Vessels (SPV) Directive?
The SPV applies if you design or manufacture certain types of simple pressure vessels to be sold or used in europe.
What does the directive cover?
The SPV applies to simple pressure vessels manufactured in series. A 'simple pressure vessel' means any welded vessel subjected to an internal pressure greater than 0,5 barg which is intended to contain air or nitrogen and which is not intended to be fired.
It must have pressure parts made from either non-alloy quality steel or non-alloy aluminium or non-age hardening aluminium alloys. The maximum working pressure of the vessel must not exceed 30 bar and the product of the maximum working pressure (PS) and the capacity of the vessel (V) shall not exceed 10 000 bar/litre.
Vessels where PS x V exceeds 50 bar/litre must satisfy the essential safety requirements set out in Annex I of the Directive and undergo a notified body assessment.
Depending upon the type of equipment - its pressure rating x volume or the manufacturing standard used - manufacturers may select a procedure from a range of conformity modules, which include:
third-party type examination (EC Type Examination);
third-party inspection (EC Certificate of Adequacy or EC Verification).
How can we help?
Abbotts has Lloyd's Register Verification Limited as its notified body for the Simple Pressure Vessel Directive. We have the capability to cover all aspects of the SPVs conformity modules, including:
EC Type Examination;
EC Certificate of Adequacy;
EC Certificate of Verification;
EC Certificate of Conformity.
Other Pressure Vessels
1 General requirements
2 Cylindrical shells and drums subject to internal
3 Spherical shells subject to internal pressure
4 Dished ends subject to internal pressure
5 Dished ends for Class 3 pressure vessels
6 Conical ends subject to internal pressure
7 Standpipes and branches
9 Mountings and fittings
10 Hydraulic tests
11 Plate heat exchangers
n Section 1
1.1.1 The requirements of this Chapter are applicable to
fusion welded pressure vessels and plate heat exchangers,
intended for marine purposes but not included in Chapter 10.
The equations in this Chapter may be used for determining
the thickness of seamless pressure vessels using a joint factor
of 1,0. Seamless pressure vessels are to be manufactured
and tested in accordance with the requirements of Chapter 5
of the Rules for the Manufacture, Testing and Certification of
Materials (hereinafter referred to as the Rules for Materials).
For the construction and design of pressure vessels and plate
heat exchangers for liquefied gas or chemical cargo applications,
see the Rules and Regulations for the Construction and
Classification of Ships for the Carriage of Liquefied Gases in
Bulk (hereinafter referred to as the Rules for Ships for
Liquefied Gases) or the Rules and Regulations for the
Construction and Classification of Ships for the Carriage of
Liquid Chemicals in Bulk (hereinafter referred to as the Rules
for Ships for Liquid Chemicals) as applicable.
1.1.2 Where the required design criteria for pressure
vessels are not indicated within this Chapter, the relevant
Sections of Chapter 10 are applicable.
1.1.3 Seamless pressure vessels are to be manufactured
in accordance with the requirements of the Rules for Materials
1.2 Definition of symbols
1.2.1 The symbols used in the various formulae in
Sections 2 to 7 inclusive, unless otherwise stated, are defined
as follows, and are applicable to the specific part of the
pressure vessel under consideration:
d = diameter of hole, or opening, in mm
p = design pressure, see 1.3, in bar
ri = inside knuckle radius, in mm
ro = outside knuckle radius, in mm
s = pitch, in mm
t = minimum thickness, in mm
Di = inside diameter, in mm
Do = outside diameter, in mm
J = joint factor applicable to welded seams, see 1.9, or
ligament efficiency between tube holes (expressed
as a fraction, see Ch 10,2.2)
Ri = inside radius, in mm
Ro = outside radius, in mm
T = design temperature, in °C
= allowable stress, see 1.8, in N/mm2.
1.2.2 Where reference is made to calculated or actual
plate thickness for the derivation of other values, these
thicknesses are to be minus the standard Rule corrosion
allowance of 0,75 mm, if not so stated.
1.3 Design pressure
1.3.1 The design pressure is the maximum permissible
working pressure, and is to be not less than the highest set
pressure of any relief valve.
1.3.2 Calculations made to determine the scantlings of
the pressure parts are to be based on the design pressure,
adjusted where necessary to take account of pressure
variations corresponding to the most severe operational
1.3.3 It is desirable that there should be a margin
between the normal pressure at which the pressure vessel
operates and the lowest pressure at which any relief valve is
set to lift, to prevent unnecessary lifting of the relief valve.
1.4 Metal temperature
1.4.1 The metal temperature, T, used to evaluate the
allowable stress, , is to be taken as the actual metal
temperature expected under operating conditions for the
pressure part concerned, and is to be stated by the manufacturer
when plans of the pressure parts are submitted for
1.4.2 The design temperature, T, for calculation purposes
is to be not less than 50°C.
1.5 Classification of fusion welded pressure
1.5.1 For Rule purposes, pressure vessels are graded as
Class 1 where the shell thickness exceeds 38 mm.
RULES AND REGULATIONS FOR THE CLASSIFICATION OF SHIPS, July 2012
Part 5, Chapter 11
LLOYD’S REGISTER 1
1.6.2 Plans of full constructional features of the vessel
and dimensional details of the weld preparations for longitudinal
and circumferential seams and attachments, together
with particulars of the welding consumables and of the
mechanical properties of the materials, are to be submitted
before construction is commenced.
1.7.1 Materials used in the construction of Class 1, 2/1 and
2/2 pressure vessels are to be manufactured, tested and
certified in accordance with the requirements of the Rules for
Materials. Materials used in the construction of Class 3 pressure
vessels may be in accordance with the requirements of an
acceptable national or international specification. The
manufacturer’s certificate will be accepted in lieu of Lloyd’s
Register’s (hereinafter referred to as LR) material certificate for
1.7.2 The specified minimum tensile strength of carbon
and carbon-manganese steel plates, pipes, forgings and
castings is to be within the general limits of 340 to 520 N/mm2.
1.7.3 The specified minimum tensile strength of low alloy
steel plates, pipes, forgings and castings is to be within the
general limits of 400 to 500 N/mm2, and pressure vessels
made in these steels are to be either seamless or Class 1
1.7.4 Where it is proposed to use materials other than
those specified in the Rules for Materials, details of the chemical
compositions, heat treatment and mechanical properties are
to be submitted for approval. In such cases, the values of the
mechanical properties used for deriving the allowable stress
are to be subject to agreement by LR.