Machovec appreciates your time. Following are some frequently
asked questions regarding privacy issues, conditions of sale, etc... We hope
this answers your questions. If not, please contact
Jay at 612-282-4035.
A 35 lbs. buoyant apparatus is
capable of supporting 35 lbs of a very dense material such as lead,
iron, gold, granite, etc. It will not allow the material to reach the
bottom. The question most people ask is how can this help a 200 lbs.
person? The answer is that the average adult only weighs approximately
10 lbs. in the water. Unbelievable? Actually, it is simple science and
works like this:
a 200 lbs. man is approximately 80%
water, which equals 160 lbs. of his total weight on land. Water has no
weight in water. A 200 lbs. man is also approximately 15% fat, which
equals 30 lbs. of his total weight on land. Fat is lighter than water
and therefore it floats. When you do the math, the man's actual weight
in water is equal to 10 lbs. (200-190=10) Thus, a flotation device
with 35 lbs. of buoyancy is more than adequate to keep the average
The automatic (i.e. water activated)
triggers used on inflatable PFD's rely upon a water soluble "bobbin".
This bobbin is used to retain a spring which, when released, impacts
the firing pin of the inflator valve causing the puncture of a CO
cylinder that inflates the air chamber. Manual triggers are simpler.
Inflation is accomplished by pulling a ripcord that causes the firing
pin to activate. Both PFD styles also have an oral infiltration tube
that allows the chamber to be inflated like a balloon.
While automatic inflation is
desirable in the event of an unconscious victim, it is imperative to
understand that these systems must be maintained. Auto-inflation
systems are inherently unstable due to the constant force of the
spring in combination with a bobbin that is affected by temperature
and humidity. Without proper maintenance, these variables have been
known to cause PFD's to suddenly inflate without immersion, as well as
to not inflate due to changes in the bobbin that render it insoluble.
When deciding between water activated versus manually activated PFD's,
it is vital to consider the storage and maintenance aspects.
How should I clean my Rescue Suit?
All Industrial Survival products should be
washed by hand in warm soapy water using a mild laundry detergent. Hang to
dry in an airy environment ensuring that they are completely dry before
storing in a warm, dry place. DO NOT dry clean survival products as dry cleaning solvents will cause the neoprene to break
down rapidly. Additional information on the use and care of your Immersion Suit can be found on our
Immersion Suit page.
Will my vest turn me over if I am unconscious and face
down in the water?
There is a difference between a Lifejacket and a
Personal Flotation device (PFD). A PFD is designed for constant wear where
comfort and flotation are the critical issues. A PFD will not self right
you. A Lifejacket will turn you over, but is less comfortable to wear.
Typically, Lifejackets are horseshoe shaped in design and slip over your
head with all of the flotation in the front of your body up around your
Is there a difference between a worksuit and a survival
A survival suit is regulated by an Immersion Suit
standard. These are suits designed to be donned quickly in an emergency
situation where a person could potentially be awaiting rescue for some
time. These suits offer maximum flotation and environment protection while
letting little to no water into them. A worksuit is designed for constant
wear while still offering flotation and environment protection. They are
classified as PDF's (personal flotation devices) and are worn in situations
where help is closer at hand.
On Manual Inflatable
Lifejackets, do I have to blow it up by mouth?
No. Manual Inflatable
Lifejackets are inflated by pulling the cord with the 'Jerk to Inflate'
knob at the bottom of the device. This causes the Lifejacket to be inflated
using a COČ gas cartridge. All inflatable
Lifejackets do have an oral inflation tube as backup should you want or
need to inflate by mouth.
any size COČ
work on the Inflatable Lifejackets?
No, they will not. Different
Inflatable Lifejackets can provide varying amounts of buoyancy.
"Clo" is a measurement of the thermal comfort of a
suit or device when it is in the water. The smaller the Clo number,
the shorter the survival time in the water.
One Clo represents the thermal comfort of an
average person in business clothing in a room temperature indoor
environment. Fractions of this thermal comfort are what are perceived
when using a device in the water. Each of the values are below 1.0
because water transfers heat out of the body 25 times faster than air.