Earthlog Equity Group 4Survival ®
About 4Survival a Subsidiary of Earthlog Equity Group ®
Welcome to our web site Earthlog Equity Group 4Survival ®
and thank you for taking the time to learn more about our firm.
Since 1989, we at Earthlog Equity Group ® have been selling Earth
Sheltered Homes, Log Homes and Building materials.
Strong Pre-engineered
The Shelter Systems are constructed pre-engineered, providing you the
peace of mind of knowing that your shelter will protect you no matter
what.
The Shelter Systems uses a unique, patented technique to ensure that each
shelter can withstand a three-bar blast.
Innovative Construction using the following components :
The Differential Pressure Gauge displays the difference in air pressure
between the inside and outside of a shelter. It has a sampling tube that
goes through the wall or ceiling in order to read the outside air pressure.
Another sampling tube is inside the housing and the difference in air
pressure is displayed by a needle on a dial gauge. When you do not have
the Safe Cell NBC overpressure air filter on, a properly installed
differential pressure gauge will read zero because there is no difference in
the air pressure inside, and outside of the shelter. When you start the Safe
Cell, the gauge will read a higher pressure.
The unit of measure displayed is inches of water column (wc). There are
27.67 inches of water in one pound per square inch (PSI).
Air flow and air pressure are two properties of forced air that are linked
together. As a general rule, the more air pressure, the less air flow. An
airflow of 5 cubic feet per minute per person at 0.3-inch (7.62-mm) of
water column is recommended by the United States Army Corps of
Engineers in the technical letter ETL 1110-3-498.
There are three ranges of gauges available that display positive
overpressure:
* Zero to 0.5-inches of water column - PN: ASR-05-DPG
* Zero to 1-inch of water column - PN: ASR-10-DPG
(special order item)
* Zero to 25-mm of water column - PN: ASR-25-DPG
(special order item)
Special order items usually ship within three weeks of the order being
placed.
The Differential Pressure Gauge is designed for easy installation into any
protected space. The kit includes all of the required components for
installation inside of the protected space.
Automatic Ventilation Blower
and thank you for taking the time to learn more about our firm.
Since 1989, we at Earthlog Equity Group ® have been selling Earth
Sheltered Homes, Log Homes and Building materials.
Strong Pre-engineered
The Shelter Systems are constructed pre-engineered, providing you the
peace of mind of knowing that your shelter will protect you no matter
what.
The Shelter Systems uses a unique, patented technique to ensure that each
shelter can withstand a three-bar blast.
Innovative Construction using the following components :
The Differential Pressure Gauge displays the difference in air pressure
between the inside and outside of a shelter. It has a sampling tube that
goes through the wall or ceiling in order to read the outside air pressure.
Another sampling tube is inside the housing and the difference in air
pressure is displayed by a needle on a dial gauge. When you do not have
the Safe Cell NBC overpressure air filter on, a properly installed
differential pressure gauge will read zero because there is no difference in
the air pressure inside, and outside of the shelter. When you start the Safe
Cell, the gauge will read a higher pressure.
The unit of measure displayed is inches of water column (wc). There are
27.67 inches of water in one pound per square inch (PSI).
Air flow and air pressure are two properties of forced air that are linked
together. As a general rule, the more air pressure, the less air flow. An
airflow of 5 cubic feet per minute per person at 0.3-inch (7.62-mm) of
water column is recommended by the United States Army Corps of
Engineers in the technical letter ETL 1110-3-498.
There are three ranges of gauges available that display positive
overpressure:
* Zero to 0.5-inches of water column - PN: ASR-05-DPG
* Zero to 1-inch of water column - PN: ASR-10-DPG
(special order item)
* Zero to 25-mm of water column - PN: ASR-25-DPG
(special order item)
Special order items usually ship within three weeks of the order being
placed.
The Differential Pressure Gauge is designed for easy installation into any
protected space. The kit includes all of the required components for
installation inside of the protected space.
Automatic Ventilation Blower
