The pressure equipment directive (2014/68/EU) was first used and adopted by the European parliament and council since 1977. Since that time, the manufacturers were torn between making a choice by directly applying the pressure equipment directives or continue having the same applications. The existing applications were held in the National legislation. However, until 2002 the use of pressure equipment directives became obligatory in the EU. The directives have the authority to provide superficial pressure vessels, transportable pressure equipment, and aerosol dispensers. The legislative framework on all types of equipment is subject to pressure hazards or other harmful elements. The PED generally arrives from European community programs when it comes to eliminating all the technical barriers. It can be useful for trade and formulated for the new approach, technical harmonization, and standards. The primary purpose is all about harmonizing laws that are regulated by the member states. 

The design, manufacturing, testing, and confirming the assessments of pressure equipment are taken care of. The assemblies relating to pressure types of equipment are used in different ways. All these factors ensure aim to ensure that it is freely placed in the market. The services of the equipment are considered according to the European area and the European Union. The pressure equipment directives are allowing the European industry when it comes to developing new techniques. It also helps in increasing international competitiveness. The pressure equipment directives refer to technical harmonization directives used for machinery, electrical equipment, medical devices, gas appliances, and superficial pressure vessels. 

The directives include many items like vessels, pressurized storage containers, heat exchange, and steam generators. The boilers, industrial piping, safety devices, and pressure accessories are also included in these directives. The pressure detectives are widely used in many industries, and in fact, there is no single industry where they are not being used. Oil, gas, chemical, pharmaceutical, plastic, rubber, and food beverage industry are using it. Like glass, paper, and board, the high-temperature process industry uses these directives in a lot of ways. The energy production, supply of utilities, heating, air conditioning, handling gas storage and transportation is quite easy.