Flowserve Nordstrom Hypregun-Plus 5G Pneumatic Valve Sealant Injector - Manual (Page 15)

15
Nordstrom Valves Hypregun - Plus 5G FCD NVENIM2004-00-AQ 10/14
flowserve.com
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
5G 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 5G 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.
Care and Maintenance
Suggested Hypregun-Plus 5G Care
The following suggestions will ensure efficient and continued operation
of the Hypregun-Plus 5G.
1. Avoid damage to the thin walled cylinder surrounding the piston
of the air motor. Imperfections in this cylinder will reduce the
effectiveness of the gun and shorten its life.
2. Handle the Hypregun-Plus 5G with care. Prevent any bending or
denting of the pistons or operating parts.
3. Use a clean, dry air source. If air is wet, use a filter on the air line
to remove the water. Install an oiler in the air supply line using
light oil in summer and methanol in the winter.
4. Do not use over 125 psi (8.6 bar) air supply pressure. The gun
will work best between 100 psi (6.9 bar) and 125 psi
(8.6 bar).
5. Always use the can shield and five-gallon (18.9 liter) cans that are
crimped and welded. The vertical welded seam on the can should
be placed opposite the opening on the shield. If the opening on
the shield is placed over the seam in the can, the can seam may
separate from the pressure created by the piston.
a
CAUTION: When inserting a new five-gallon (18.9 liter) can
of sealant, be extremely careful. Keep fingers clear as the
follower plate descends into the sealant container.
6. Be sure to bleed or vent the Hypregun-Plus 5G before using. The
more the curvature of the mounded sealant matches the curvature
of the follower plate, the less air will be entrapped when changing
cans. The relief valve (64, Section B-B) should be opened until a
steady stream of sealant is obtained. If the pressure gauge needle
continues to bounce, remove the valve screw (63, Figure 1) to
free entrapped air in that area and, in rare occasions, remove
the pressure gauge to be sure there is no air entrapped in the
connection to it. Improper bleeding is indicated by a very bouncy
action of the pressure gauge needle at relatively low pressures. If
this continues, additional bleeding is necessary.
7. Store the Hypregun-Plus 5G and sealant in a reasonably warm
place so that not only the gun but the sealant is at an operable
temperature.
Repair Reassembly
There are two places in the reassembly of the Hypregun-Plus 5G
pumping mechanism where the parts should not be rigidly assembled:
1. When the piston and cylinder (42, Section C-C) are attached to
the air motor piston rod (37, Section C-C), they should only be
hand tight (not wrench tight), the holes aligned, and the roll pin
installed to secure in place.
2. In assembling the primer rod and foot valve assembly
(45, Section C-C) into the piston, it should be pinned in place with
roll pin (38, Section C-C) before it becomes tight. There should be
some “wobble” evident for self-alignment of the parts. The primer
rod and foot valve assembly (45, Section C-C) and valve seat (47,
Section C-C) should be replaced as a single unit.
Factory Repair Service
Factory repair service is available from the Flowserve Sulphur Springs
operation. Consult your Authorized Distributor or Customer Service
Representative for more details.