With over 40 years experience in the process control valve and pneumatic markets, we have a comprehensive knowledge of products and specifications. If you are having difficultly sourcing a specific product - we can help. Send us an email or fill in the following form and we will do our best to source the product you need.

We accept all major credit and debit cards for payment through our website and over the phone. However, approved customers can take advantage of our 30 day credit account facilities. Please download our PDF application form and return this to us. Account openings are subject to status and approval.

If you are not entirely happy with your order, you can return any products to us within 14 days for a full refund. However we do reserve the right to impose a restocking charge on any specially ordered or manufactured products. Please contact us before making any returns. Please see our Terms and Conditions of Sale for more information.

We have used a number of acronyms on our website and printed literature to make reading specifications easier. Some commonly used acronyms are explained below:

• BSPP (thread) - British Standard Pipe Parallel
• BSPT (thread) - British Standard Pipe Tapered
• NPT (thread)- National Pipe Taper
• PSI (pressure) - Pounds Per Square Inch
• PN (pressure) - Pressure Number/Nominal
• DN (size) - Diameter Nominal
• OD (size) - Outside Diameter
• ID (size) - Inside Diameter

The IP code, which is sometimes known as Ingress Protection Rating consists of the letters IP followed by two numerical digits and an optional letter. These digits classifies the degrees of protection against the intrusion of objects, dust and water. For example, hazardous area equipment typically requires a minimum IP rating of IP54, but may be assessed to require a higher rating. The tables below explain the various digits and their meaning. For more detailed information click here.

The ATEX directive consisits of two EU directives (94/9/EC and 99/92/EC) which describes what working conditions and equipment is allowed in a environment with an explosive atmosphere. The ATEX 95 (94/9/EC) equipment directive relates to equipment and protective systems intended for use in potentially explosive environments. Areas where hazardous atmospheres may occur must be classified into zones. Equipment for use in explosive environments are classified into groups and categories.

Protection symbol		Zones						Description
		0	20	1	21	2	22
"c"								Protection by constructional safety according to EN 13463-5 This standard establishes manufacturing requirements which have been proven safe, in order to avoid any inflammation sources such as friction or heating sparks. It applies to apparatus where movement and friction can occur (clutches, brakes, bearings, springs...).
"d"								Flameproof enclosure Refers to an electrical apparatus whose explosive parts are enclosed in an explosion proof casing. This casing will resist the pressure generated by the internal explosion of an explosive mixture and will prevent the explosion from penetrating to the ambient explosive atmosphere.
"e"								Increased safety Refers to an electrical apparatus with a high safety coefficient. Such an apparatus is free from excessively high temperatures and, like under normal service conditions, cannot develop inside and outside electric arcs and sparks.
"i"	"ia"							Intrinsically safety Refers to a circuit in which neither sparks nor temperature can ignite an explosive atmosphere, if generated under the service conditions specified by the standard regulations (normal and faulty operating conditions).
	"ib"
"m"								Encapsulation Refers to a special casing in which the parts, of an electrical apparatus which could ignite an explosive atmosphere by either sparking or heating, are encapsulated in a compound in such a way that this explosive atmosphere cannot be ignited.
"n"								Method of protection for electrical equipment designed so that it will not ignite the surrounding explosive atmosphere in normal operation and under certain fault conditions specified in the standard. There are 5 categories of equipment: nA (non-sparking), nC (hermetically sealed), nR (restricted breathing), nL (limited energy), and nP (simplified pressuration).
"o"								Immersion Refers to electrical apparatus immersed in oil.
"p"								Pressurised enclosure Pressurization is maintained against atmosphere by means of a neutral inert gas.
"q"								Refers to a casing containing powder filling.

Engineering Data Conversion Sheet

Flange Tables

Chemical Resistance Charts

British Standard Pipe Thread Dimensions

Terms and Conditions of Sale

Credit Account Application Form

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