Threaded ball valves S80 series.

Threaded ball valves S60 series.

IFA+EFA valves are currently the most popular model in the Petroster valve offer. They are produced in connection diameters from DN50 to DN200 and various capacity versions. This is a modern design combining a breathing valve with a flame arrester in one device, dedicated to storage and process tank

SFA is a series of breathing valves with a three-way design, dedicated to specialized applications and installations operating in closed vapor circulation. Unlike EFA and RFA, SFA valves have separated overpressure and underpressure discs, which allows for an individually selected ratio of the inhal

RFA is a series of breathing valves without a flame arrester, available in sizes from DN50 to DN300 and dedicated to installations requiring high inhalation capacity. They have discs integrated into one unit, as in the case of EFA, but their disc proportions have been reversed to obtain the highest

EFA valves are the most popular model in the offer of valves without a flame arrester. They come in sizes from DN50 to DN300. This is a modern design dedicated to storage and process tanks requiring balanced aeration and venting parameters. Their main tasks are to automatically regulate the pressure

Flame arresters tested according to DIN EN ISO 16852 as deflagration end devices Deflagration protection Flame arrestor tested as a deflagration end device prevents flame propagation in the event of deflagration of explosive vapor-air or gas-air mixtures from the outside (atmosphere) to the insid

Flame arrestor tested according to DIN EN ISO 16852 as a deflagration tube arrestor Deflagration = explosion in which the flame propagates at subsonic speed. The flame arrestor prevents flame propagation to the side to be protected in the event of deflagration of explosive vapor-air or gas-air mix

Flame arrestor tested according to DIN EN ISO 16852 as a liquid detonation end-of-line device. Detonation = explosion in which the flame propagates at supersonic speed. Deflagration = explosion in which the flame propagates at subsonic speed. The flame arrestor prevents flame propagation during d

Pressure/vacuum valve and deflagration end-of-life protection
 Pressure/vacuum valve tested as a flame arrestor according to DIN EN ISO 16852. Ventilation lines on storage tanks prevent negative and positive pressure during filling, emptying, cleaning, heating, cooling or inerting of the container

Detonation: An explosion in which the flame propagates at supersonic speed. Deflagration = explosion in which the flame propagates at subsonic speed. If explosive gas ignites in a container or pipe, a deflagration (explosion) is triggered. When a flame front travels through a pipe, the flame speed

The SQUARE MODEL VALVE product page mentions the following standards and directives: - DIR 2006/42/CE (machinery) - DIR 2014/68/EU (PED) Fluid Group 1(b), 2 (Cat. I. mod. A) - DIR 2014/34/EU (ATEX) Area 2&22 These references pertain to European directives related to machinery safety, pressure equi

Flame arrestor tested according to DIN EN ISO 16852 as a foot valve (liquid detonation end protection). Detonation = explosion in which the flame propagates at supersonic speed. Deflagration = explosion in which the flame propagates at subsonic speed. Flame arresters tested according to DIN EN IS

Extension cords for applications in environments with potentially explosive atmosphere

Empty enclosures for applications in environments with potentially explosive atmosphere

The fully maintainable Diamond Butterfly valve is a hygienic, in-line ¼ turn or multi position unit for manual and actuated applications. Our butterfly valves can be supplied, fitted and tested with a comprehensive range of pneumatic and electric actuators to include solenoids, limit switches and po

Plugs for applications in environments with potentially explosive atmosphere

Couplers for applications in environments with potentially explosive atmosphere

Cable glands for applications in environments with potentially explosive atmosphere

Switched interlocked socket outlets for applications in environments with potentially explosive atmosphere

Control devices and switch-disconnectors for applications in environments with potentially explosive atmosphere

SK1203 is a compressed air open circuit breathing apparatus with hood for escape, from all environments potentially dangerous because of the presence of fumes or lack of oxygen. It is designed to create a constant air flow of 15 minutes thanks to a 2 l300 bar cylinder which is directly connected to

Junction boxes for applications in environments with potentially explosive atmosphere

Local control stations for applications in environments with potentially explosive atmosphere

Diablo Advanced range includes self-contained open circuit breathing apparatuses with full face mask and demand valve, in compliance with EN 137. The Diablo Advanced (Type 1) is available, on request, for use in a potentially explosive atmosphere. The Diablo Advanced is Type 1, for general use, and