Modular Blast Valves
General
EEP modular blast valves type BV-5067/350 is used where a large airflow is required. They are suitable for wall and duct mounting for both inlet and exhaust air. The standard range are designed to with-stand loads of 2 to 6 MPa (20 bar to 60 bar) from both sides. The standard modular BV-5067 blast valves can with-stand temperatures of up to 80oC. A high temperature version for generator exhaust operates up to +650 oC.
Design
The valve consists of modules fitted into wall frames. The valves can be installed both vertically and horizontally. The valve closes on impact of the blast and also during the reverse pressure phase. When the blast has passed, the valve returns to its open position.
The frames are made from stainless steel and are designed for casting into concrete. If required they can also be supplied for bolting into or welding into steel walls.
Airflow Capacity
The air volume at the required pressure drop will determine the total number of valves.
The chart on the following page shows flow rates relating to one valve. The airflow/pressure drop through the blast valve in both directions is shown below.
Blast Rating
The valves have been designed and tested to withstand loads of up to 2 MPa.
(20 bar) and short duration loads of up to 6 MPa (60 bar).
Accessories
The wall frames can be fitted with particle filters and shields for protection against weather and shrapnel.
Specifications
| Air flow rate | See below |
|---|---|
| Incident pressure durability (Standard version) | 2 – 6 MPa (20 – 60 bar) |
| Reflected pressure durability (Standard version) | 2 – 6 MPa (20 – 60 bar) |
| Shock resistance | 60 G |
| Operating temperature range – standard inlet and outlet | -20 oC to +80 oC (c.f. UFC 3-340-02) |
| Operating temperature range – generator exhaust outlet | -20 oC to +650 oC (c.f. UFC 3-340-02) |
Constructions
EEP manufacture their blast valves using only high grade stainless steel and other materials of the highest grade. Quality control is paramount throughout all phases of construction.
Airflow v Pressure Differential
Summary of Airflow Tests.
Disclaimer
NB: All the information provided within this datasheet is for reference only. Product specifications are subject to change without notice.
Downloads