Ba Set

Front 1

What three elements does the backplate consist of?

Back 1

Adjustable shoulder yoke (Short, Medium, Long)

The Backplate made from moulded carbon composite

Waist belt pivot slide assembly which improves weight distribution and manoeuvrability (2/3rds of weight carried on hips, bergen principal)

Front 2

What 3 elements doesHarness consist of?

Back 2

Pair of adjustable shoulder straps (made from flame retardant, closed cell, vulcanised foam)

Chest strap ( with trident buckle)

Pair of pull forward waist belt ( with push-in quick release trident buckle)

Front 3

What are all the straps made from?

Back 3

50% Kevlar webbing, nylon and panotex

Front 4

What is the cylinder strap attached too?

Back 4

Cam lock buckle (made from glass filled nylon)

Front 5

What is the reducers function?

Back 5

Reduces compressed air in the cylinder (200-300 bar) down to 6-9 bar

Front 6

What happens when the reducer reaches 11-16 bar?

Back 6

Medium pressure hose line has a pressure relief valve. A Spring lifts up expels air and relocates once pressure is reduced.

Front 7

What pressure does the medium hose carry?

Back 7

6-9 bar

Front 8

What pressure does the high pressure hose carry?

Back 8

200-300 bar

Front 9

What material are the hoses made of?

Back 9

EPDM (Ethylene Polpylene Diene Monomer)

Front 10

What is inside the high pressure rubber hose?

Back 10

copper capillary that tube that is a coil wound around a multi strand length of bronze.

Front 11

What are the Buckles made from

Back 11

Stainless Steel buckles which are anti spark & sljp

Front 12

What does the Lung Demand valve do?

Back 12

The LDV has a reset button, which stops the free flow of air. Also has a supplementary air button, when activated allows free flow of air.

Front 13

What is the LDV made of?

Back 13

Glass filled nylon

Front 14

How does LDV work?

Back 14

First breath principle. Air will not be delivered until wearer inhales. Second reducer located in the LDV, reduces 6-9 bar down to breathable pressure.

Front 15

Operating Pressures of LDV

Back 15

First breath minus 1 to minus 25 bar

Reduced into mask 1 to 3.9

Activate exhaustion valve. 4.2 to 5.7

Front 16

Explain the Facemask

Back 16

Large distortion free, anti-scratch polycarbonate visor which is heat and impact resistant.

Front 17

What rubber is on face mask?

Back 17

Hypoallergenic and is made from neoprene.

Front 18

What does the oral-nasal consist of?

Back 18

Two mushroom valves, prevents carbon dioxide and condensation build up.

Front 19

Name of Head harness?

Back 19

5 point spider head harness, with stsinless steel Buckles.

Front 20

Flow of air?

Back 20

Pressurised air from the cylinder (200-300 bar) flows through anti debris tube which contains a bronze sintered filter. Then flows through the cylinder valve, turns 90 degrees which reduces velocity but not pressure. Enters the high pressure and medium pressure side of the reducer. High pressure side enters the copper capillary tube which goes to the EMU. Air flowing through medium pressure side enters large compartments and reduces down to 6-9 bar. Then goes to the LDV and another chamber, which reduces the air further to a breathable rate (1 - 3.9). As you inhale, the chamber exceeds 4.2-5.7 bar, excess air is then expelled into atmosphere via exhalation valve

Front 21

Full and Working duration?

Back 21

Full duration 48

Working duration 36

Avg. Consumption rate of 500 litres per minute

Front 22

Cylinder capacity

Back 22

300 bar, 2430 of compressed air