EMERSON Manual Explosion Vent Panels CSB IOM, Marston-EN
Summary
This comprehensive guide provides detailed instructions for the professional installation and routine maintenance of MARSTON CSB Type Bursting Disc Assemblies. The product is a critical component for controlling vent systems, designed to provide reliable protection where system pressure fluctuations may occur. This manual covers proper assembly techniques, pre-use checks (including flange preparation), systematic operational alignment, and best practices for leak inspection and serviceability. It is essential reading for facility engineers, technical staff, and maintenance professionals responsible for the accurate integration and long-term performance of industrial vent hardware.
Page 1 Text Content
MARSTON CSB TYPE ASSEMBLIES INSTALLATION AND MAINTENANCE INSTRUCTIONS
Before installation these instructions must be read fully and understood
INTRODUCTION (refer to Figure 1) MAINTENANCE
This type of holder accommodates ‘CS’ discs. Bursting discs are considered generally Each assembly consists of: maintenance free, as they have no moving • Type CS - Slotted disc (2a) parts.
Seal membrane (2b) However, it is recommended that discs are
If vacuum/reverse pressure conditions occur a checked during service to ensure there are vacuum support (3) may be attached. no signs of corrosion, fatigue, pin holing,
product build up etc. This should be done most ASSEMBLY frequently when commissioning the equipment.
• Place the vent side holder on a bench with the DISPOSAL
recess upwards. • Before placing the disc assembly into Beware of sharp edges and process residue the recess, check the disc tag for correct when dismantling. Items should be disposed identification number, burst pressure and of in accordance with local and national temperature rating. regulations. • Place the disc assembly into the recess. Note: The disc is prevented from incorrect installation by the 'foolproofing' feature incorporated into the disc tag. • Fit the pressure side holder into the vent holder. • Fit and tighten the assembly screws / connector plates which secure the holder parts together. The assembly can now be installed into the plant. Note: Gaskets should not be fitted between parts 1 and 2. Gaskets may be fitted between parts 2 (or 3 if fitted) and 4, if necessary and when agreed by Emerson. • Check flow arrow on holder and 'vent side' on disc tag are in agreement. If in any doubt, contact Emerson directly.
INSTALLATION
• Check that the details on the holder product plate and the disc tag are correct for the specific application. • When placing the assembly between the flanges or into the system, ensure that the flow arrow and 'VENT SIDE', on the disc tag, are orientated correctly and in agreement with the flow direction of the vent system. • Mating equipment faces should be undamaged, parallel and aligned correctly with the bursting disc device. Faces should be clean and fitted with correct gasket/seal. • Tighten the flange bolts progressively until a seal is achieved. • Disc performance is not affected by flange bolt torque.
Emerson.com/Final Control © 2017 Emerson. All Rights Reserved. VCIOM-02510-EN 16/01
Page Summary Contents For EMERSON Manual Explosion Vent Panels CSB IOM, Marston-EN
Manual Details
| Brand | Emerson |
|---|---|
| Pages | 2 |
| File Size | 46.24 KB |
| Published | June 06, 2026 |
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Frequently Asked Questions
How should I orient the assembled unit during installation?
Ensure the flow arrow and 'vent side' on the disc tag align correctly with the vent system’s flow direction.
What is required for proper sealing when connecting the holders to the system flanges?
The mating equipment faces must be undamaged, parallel, and aligned. Tighten flange bolts progressively until a seal is achieved.
Can I use gaskets between all parts of the assembly?
No; gases should not fit between parts 1 and 2, but may be fitted between parts 2 (or 3 if present) and 4 if necessary.
How often should vacuum support mechanisms be checked?
They should be checked most frequently when commissioning the equipment to ensure there are no signs of corrosion or fatigue.