mensor 73 Operation Manual

MENSOR MODEL 73 SHOP AIR BOOSTER

Operation Manual - PN 0017946001 A

®

Mensor Model 73

Shop Air B o oste r Sy s tem

(750 psi Version)

April 23, 2012

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Mensor is a registered trademark of Mensor Corporation. All other brand and product
nam es are tradema rks o r registe red trademarks of their respective compan ies.

© 2010 M ensor Co rpo rati on. All righ ts reserved.

Operation Manual

Mensor Model 73

Shop Air Booster System

GENERAL INFORMATION

The Mensor Model 73 Shop Air P r essur e Booster generates 325 psi to 750 psi using a 70 psi
to 150 psi clean dry shop air source. The Model 73 co nsist s of a single 5 t o 1 pressur e boost
stage with limits for speed control and maximum output pressure control. To achieve the 325
psi output, a minimum supp ly of approximately 70 psi is required. To achieve 750 psi, a 150
psi supply is required. 150 psi is the maximum input pressure the unit shou ld be subjected to.
The unit is purely a mechanical de vice and has no electrical requirements.

WARNINGS AND SAFETY PRECAUTIONS

Caution: High Pressure Gas can be extremely dangerous if improperly

handled.

Caution: Unit should be operated, adjusted and maintained by qualified

personnel trained in high pressure pneumatics.

Caution: All Tubing, Fittings and connected devices must have a working

pressure rating equal to or greater than the maximum required
pressure.

Caution: All connections should be in good mechanical condition, i.e. good

threads on fittings, tubing free of kinks or nicks, etc.

Caution: All connections should be properly installed and tightened.

Caution: Small articles exposed to the escaping gas can be propelled at

ballistic speeds to the endangerment of nearby personnel and
equipment.

Caution: Under certain conditions the noise level created by gas exiting

equipment under high pressure can become dangerously high.

Caution: The maximum input pressure to the unit is 150 psi gauge pressure.

The input regulator and the input filter are rated for 150 psi
maximum.

INITIAL SETUP AND CHECKOUT

On initia l s etup, user should check to insure no shipp ing damage has occurred to the unit o r
the container it was shipped in. Prior to co nnect ing pr essur e, check a ll hoses for k inks and
nicks and insure fittings are snug. Verify that the regulato r filters are not cont aminated with

liquid or particulates. User should verify input pressure (shop air) is within the operating
rang e of the boos ter and w ithin the r a nge of any test device connected prior to applying the
input pressure. Althoug h t he regulator pressure sett ings have been set at t he factory, the user
should on initial applic a tion verify the incoming shop air is 150 psi or less and the input
pressure gauge on the rear of the unit is approximately 50 psi or less. The black regulator
knob should be used to adjust the input pressure either increasing o r decr eas ing the o ut put
pressure as appro pr iate. The front panel gauge shows the actual output pressur e valu e. Once
the system is operational, t he black regulator knob should be used to set the final output
pressure t o mat ch t he app lication and the controller full scale. S ome f i n al a dju s tmen ts may b e
required to co mpensate for differences in actual sup ply pressure.

PORTS, CONTROLS AND ADJUSTMENTS

There are two pressure ports on the rear of the Model 73 chassis. The input pressure port is
designed for a shop air supp ly which functions as the drive pressure as w ell as the output
media. It should be clean dry co mpressed air (or Nitrogen) at a pressure of 70 to 150 ps i.
(Abso lut e Max i mum Input Pressure is 150 psi to the rear mounted pressur e filter.) This
pressure is regulated dow n to a typical working pressure of 50 to 150 psi. The second
pressure port is the HIGH PRESSURE OUTPUT port. It is desig ned for a typical output
pressure of 325 to 750 psi. The mechanical ad vantage is derived by using differing piston
area sizes to generate high pressures. T he output eq uation is :

Output Pressure = I nput Pressure + ( Regulated Pressure * 4)

The i nput port is a 3/8” Swagelok male type tube fitting mounted on the external pressure
filter. T he Output port is a ¼” Swagelok male type tube fitting.

Input Pressur e Port

The input pressure port labeled
“INPUT PRESSURE” is used to
supply and drive the boo s ter a nd
is intended to be connected to a
shop air supply of 70 to 150 psi
(150 psi m ax ). The port is a 3/8”
male Swagelok type tube fitting
mou nted on t he end of a pressure
filter. A 200 psi rear mounted
panel gauge provides an
indication of the regulated shop
air pressure input. If shop air is
not present on the gauge the user
should check to see if the shop
air is present on the input port
and the r e gulator knob is no t fully countercloc kwise. The input regulator filter provides basic
filt ering of la rge p a rt ic le s and liquids. It shou ld periodical ly be checked for excessive
co ntamin ation a nd e mptied of liquids . Note: The input pressure supply should have