Flowserve PLUS 5Q - Manual (Page 4)

The Flowserve Nordstrom Hypregun-Plus 5Q was developed
using the original Nordstrom Hypregun design and modifications
as suggested by many Hypregun owners. This design continues to
meet field and plant maintenance needs of valve users.
The Hypregun-Plus 5Q is ideal for large scale valve servicing
in refineries, compressor stations, gasoline plants, cycling plants,
pipelines, and manifold installations.
The Hypregun-Plus 5Q is a compact, highly efficient, air
operated sealant injection device with a 100:1 pressure ratio,
double acting piston, and five quart can. Continued positive
pressure applied to the side cylinders assures intimate contact
between the follower plate and sealant. Positive pressure makes
it possible for the Hypregun-Plus 5Q to pump sealant at a much
lower temperature than is possible with dispensing equipment
without this feature.
The follower plate is engineered to promote flow of sealant
to the foot valve at all workable air pressures, but air pressures
between 100 and 125 psi (6.9 to 8.6 bar) give the most efficient
operation. Lower air pressure can be used but the gun delivery
volume will be reduced accordingly. It is important that the gun
not be used on air pressures exceeding the 125 psi (8.6 bar)
rating of the air motor. The air motor uses a maximum of 11.4
cubic feet of air per minute when operated at 125 psi (8.6 bar) air
pressure and with zero load. Reduced air pressure and increased
load reduce air consumption although not linearly.
The amount of sealant delivered by the Hypregun-Plus 5Q
depends on available air pressure to the gun, type of sealant and
the temperature at which the sealant is dispensed.
A moisture trap (not supplied with the gun) for use on
air sources containing appreciable amounts of water is quite
advantageous for low temperature applications. Moisture, if
allowed to reach the air motor, can condense and freeze, causing
the air motor to stall. Air line filters for removing moisture from
the air supply are available from several manufacturers.
The Hypregun-Plus 5Q is designed to use five-quart
(4.7 litre) sealant cans, which have been materially strengthened
with welded seams. These cans are standard containers for all
Nordstrom bulk sealants. The can shield supplied with each gun
gives added strength to the can.
The five-quart (4.7 litre) can and shield have been developed
specifically for use with the Hypregun-Plus 5Q. We do not
recommend using other containers or sealants developed
by other manufacturers.
How to get the most out
of your Hypregun-Plus 5Q
The following suggestions will ensure efficient and continued
operation of the gun:
• If the air motor operates slowly because of low temperatures or
other causes, introduce light machine oil into the motor through
the air supply. This will, in most cases, free a stalled air motor
and permit it to operate more efficiently.
• Remove any service sealant from the exposed portion of the
pumping mechanism to reduce drag and prevent sealant from
entering portions of the gun not designed for this purpose.
• Provide a means of removing moisture from the air supply
to the gun if used at subfreezing temperatures. Use of air
filters should accomplish
this purpose.
• Do not damage the thin walled cylinder surrounding the piston
of the air motor. Any imperfection in this cylinder will reduce
the effectiveness of the gun and shorten its life.
NORDSTROM HYPREGUN-PLUS 5Q
4
Hypregun-Plus 5Q
Flow Control
Nordstrom Valves
Flow Control
Nordstrom Valves