EMERSON Guide ATEX - Operating and Safety Instructions, Crosby-EN
Summary
These comprehensive operating and safety instructions are for ATEX-certified Crosby Safety and relief valves, designed for use in potentially explosive or hazardous industrial atmospheres. The manual guides users through strict protocols covering proper selection, installation (including tooling and ambient temperature), handling reactive fluids, and routine maintenance. It is intended for qualified plant operators and technical personnel who must ensure the valves are correctly implemented to maintain safety integrity in dangerous working environments, complying rigorously with all ATEX regulations.
Page 1 Text Content
Crosby Safety and relief valve S ATEX - Op Er ATing And s Af ETy ins Truc Ti Ons
Before installation these instructions must be fully read and understood
additional Safety instructions for valves • ensure that the equipment is suitably and accessories being used in a Potentially earthed, through the pipe or individually. explosive atmosphere under ate X 94/9. • the installer should thoroughly follow the
operating and safety instructions provided for referen Ce each individual item of equipment. • When the valve is to handle hot fluids or fluids these are additional safety instructions to Ped where exothermic reactions may take place, document number: the end user must take all the necessary AGCDr-2049. measures to ensure that the hot surface of See also: emerson.com/final Control the valve cannot provide a source of ignition to the surrounding gas, vapor, mist or dust MArkin G atmosphere. • Before putting into use or during operation to be strictly in accordance with the with a dangerous fluid, ensure that no release requirements of ate X 94/9/e C, and includes: of the fluid to atmosphere can take place.
• Ce and epsilon X (e X Mark) • equipment Group ii. MAinten An Ce • equipment Category (1, or 2 or 3, as label). • type of explosive atmosphere, Gd. • the operator must ensure that only personnel • notified Body Certificate number, where this qualified to work in a potentially hazardous is applicable. area are allowed to carry out maintenance
appropriate to the category of the equipment sele Ction in use. • the end user must ensure that only tooling • ensure that the equipment is marked with the appropriate to the working area is used, correct equipment group, category and type see en 1127-1 annex a. of atmosphere for the application and that the • all equipment must only be fitted with safety instructions are followed for each item manufacturer’s original spare parts.
of the equipment. • in particular, all items included in an actuator te Mper Ature li Mits package, including valve, actuator and all accessories should be Ce marked to ate X in the valve is not heat generating, the the appropriate and / or requested category. temperature is a function of the process fluid.
inst All Ation
• the installer must only use tooling appropriate to the working area, see en 1127-1 annex a. • installation has to be carried out at ambient temperature. • during installation ensure that no metallic shocks / impacts are made to the equipment or the adjacent pipework.
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Page Summary Contents For EMERSON Guide ATEX - Operating and Safety Instructions, Crosby-EN
Manual Details
| Brand | Emerson |
|---|---|
| Pages | 2 |
| File Size | 33.13 KB |
| Published | June 06, 2026 |
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Frequently Asked Questions
What are the key requirements when dealing with explosive atmospheres?
Equipment must be suitably rated for the potentially explosive atmosphere. Only qualified personnel should perform maintenance, and all items must follow ATEX 94/9/eC requirements.
What constraints are placed on installation tooling?
The installer must only use tooling appropriate to the working area and avoid making any metallic shocks or impacts to the equipment or adjacent pipework.
Who can perform maintenance on the valve system?
Only personnel qualified to work in a potentially hazardous area, specifically trained for the category of equipment selected, are allowed to carry out maintenance.
What precautions must be taken when handling hot fluids?
The end user must take all necessary measures to ensure the hot surface of the valve cannot provide a source of ignition or release dangerous fluid to the atmosphere.