Breather Valves , Flame Arrestors and
Emergency Vent
Pressure Vacuum Relief Valves(Breather Valves)
STANDARD SPECIFICATIONS
| · Using Elmac’s proprietary software, the required flow area and the diameter of the Pressure Vacuum Relief Valve required to the relieve the normal venting requirements. |
| · Methods of Valve Sizing as per API-2000 – Co-efficient of discharge method / Flow curve Method |
| · Our unique seal design offers ultra tight low leakage, reducing product losses, exceeding the requirements in API 2000 & ISO 28300 |
| · Minimum requirement is < 1SCFH at 75% of setting according to API 2000 (7th edition) & ISO 28300 |
| · High flow capacities – Skirted pallet for improved full lift performance |
| · Low leakage rates – Air cushion knife edge design seat |
| Make : ELMAC ENVISAFE |
End-Of-Line Flame Arrestors
STANDARD SPECIFICATIONS
End of Line Deflagration Arresters |
| · Size Range 15mm (3/8”) – 600mm (24”) |
| · Explosion Group IIA, IIB1, IIB2, IIB3, & IIC |
| · Operating Temperature upto +150°C |
| · Short-time burn capability |
| · E-Flow™ element design – uses less material and offers a greater free area to the flow |
| Make : ELMAC ENVISAFE |
Inline Flame Arrestors
STANDARD SPECIFICATIONS
In-line Unstable Detonation Arresters |
| · Size Range 15mm (3/8”) -300mm (12”) |
| · Explosion Group IIA, IIB1, IIB2 & IIB3 |
| · Operating Temperature up to +150°C |
| · Short-time burn capability |
| · E-Flow™ element design – uses less material and offers a greater free area to the flow |
Inline Deflagration Arresters |
| · Size range 15mm (3/8”) – 600mm (24”) |
| · Explosion Group IIA, IIB1, IIB2, IIB3, & IIC |
| · Operating temperature up to +150°C |
| · Short-time burn capability |
| · E-Flow™ element design – uses less material and offers a greater free area to the flow |
| · Ports for pressure and temperature ports |
| Make : ELMAC ENVISAFE |
Emergency Relief Vents
STANDARD SPECIFICATIONS
| · Anti-fouling self-draining element |
| · Significantly reduces contamination |
| · Prevents ingress of rain and dirt |
| · Reduces maintenance |
| · Extends service life |
| · Sizes up to 3″ (80mm) |
| · Carbon steel, stainless steel, aluminium |
| · 10” NB (DN250) to 24” NB (DN600) |
| · +8mbarg to +75mbarg |
| · Weight loaded construction |
| · Designed to API 2000/ISO 28300 |
| · ATEX Directive 94/9/EC compliant |
| · Pressure only, vacuum only, combined options available |
| Make : ELMAC ENVISAFE |