Flowserve PLUS 5Q - Manual (Page 12)

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NORDSTROM HYPREGUN-PLUS 5Q
Flow Control
Nordstrom Valves
Flow Control
Nordstrom Valves
The numbers in parentheses refer to Hypregun-Plus 5Q parts as
illustrated on pages 5 and 6 of this manual.
1. The air coupler (17) will be found attached to the nipple (7)
as shown in Section A-A. The air hose connector should be
connected to the air supply hose.
2. Fasten the can shield (72, Figure 1) in place around the five-
quart (4.7 litre) sealant can below the reinforcing rib and with
the can seam covered by the retainer.
3. Slightly mound the sealant in the container so that the
concave shaped follower plate can be brought down on the
sealant with a minimum entrapment of air.
4. Raise the pump mechanism and sealant follower plate prior
to inserting the sealant container into the gun. By connecting
the air supply hose to the air supply nipple (57, Figure 2) in
the base of the pump and opening the ram needle valve (8,
Section A-A) the follower (34, Figure 1) will rise sufficiently to
clear the top of the sealant container.
5. Place the can with the can shield in the operating position in
the Hypregun-Plus 5Q.
6. Be sure the valve screw (63, Figure 1) in the pump body is
closed. Connect the air supply hose to the nipple (7, Section
A-A). The ram needle valve should be opened slowly causing
the air pressure to force the follower plate (34, Figure 1) down
toward the sealant container.
CAUTION - Keep fingers clear as the follower plate
descends into the sealant container
Care should be exercised that the sealant container is
directly under the follower plate as the two are brought into
contact. Once the follower plate has entered the top of the
sealant container, open the ram needle valve 2 1/2 turns
from closed position.
7. As shown in Section B-B, the relief valve (64) is opened fully
while the valve screw (63, Figure 1) is opened two turns.
8. With the air motor throttle valve closed (3, Figure 1), allow
the column between the sealant container and relief valve
(64, Section B-B) to fill with sealant with the pressure of the
follower plate alone. After a steady flow of sealant is obtained
at the relief valve, open the throttle valve and pump sealant
through the vent valve until there are no air bubbles. (If the
available line pressure is not sufficient to push sealant through
the relief valve by the follower plate pressure alone, open the
air motor throttle valve before the sealant comes out the vent
valve.)
9. After venting of the air is complete, close the valve screw
(63, Figure 1) and the relief valve (64, Section B-B) and read
the pressure gauge (65, Figure 1). If the pressure gauge does
not read several thousand pounds sealant pressure, the relief
valve (64) and the valve screw (63) should be opened again
to allow further venting. Repeat this operation as required.
Occasionally, The Hypregun-Plus 5Q may become air bound
during operation. If this occurs, repeat the procedure for air
venting as outlined above.
10. With the shut-off and relief valve (78, Section B-B) in the
closed position, the button head coupler (69, Section B-B)
should be slipped over the button head fitting on the valve to
be injected. Open the shut-off valve (a small wrench may be
required). Adjust the air throttle valve (3, Figure 1) on the air
motor and observe sealant pressure on the gauge (65, Figure
1) to ensure proper sealant flow and pressure for plug valves.
WARNING - High pressure injection of sealant into
low pressure iron and semi-steel bodied valves
may deform or destroy certain valve parts which
could result in personal injury. Follow the valve
manufacturers recommended procedures for
sealant injection.
11. After the valve is injected with sealant, close the shut-off
and relief valve (78, Section B-B). Remove the button head
coupler (69, Section B-B) from the fitting on the valve. This
may be done without turning off the air supply to the air
motor. By using the shut-off valve, the user can attach the
coupler or remove it from the fitting with the gun retaining
positive pressure.
12. When all of the sealant has been pumped from the sealant
container, close the throttle valve (3, Figure 1) and transfer
the air supply hose to the air supply nipple (57, Figure 2) on
the base of the gun. With the ram needle valve (8, Section
A-A) open, the gun mechanism is raised, lifting the sealant
container off of the gun base. Close the ram needle valve.
13. Unclip the can shield and remove. Remove the can from the
follower. It may be necessary to attach the air supply to the
relief valve nipple (57, Section B-B) and slowly open the relief
valve (64, Section B-B) 1/4 turn to allow air to enter the can.
The can will be forced from the follower.
14. In changing from one service sealant to another, it is advisable
to purge the gun sealant system. To do this, pump the new
sealant through the delivery hose, with the coupler removed,
until the old sealant has been purged.
15. The pressure relief valve (4, Section A-A) is adjusted at the
factory to 125 psi (8.6 bar) cylinder pressure. Use of the
Hypregun-Plus 5Q at higher pressures can result in damage
to the gun.
16. The air motor is rated at 125 psi (8.6 bar). Do not use the
Hypregun-Plus 5Q on air pressures greater than this figure.
Lower air pressures are recommended where delivery capacity
will be adequate. Do not leave air pressure on the gun
indefinitely when not in use.
Operation