Versa-Matic Versa-Surge Surge Suppressors for Air-Driven Diaphragm Pumps Metallic - Manual (Page 3)

Models VTA1, VTA25, VTA1½, VTA40, VTA2, VTA50, VTA3 & VTA80 versassmsm-rev0510 Page 1
Surge Suppressor
• Nearly surge-free flow.
• Steadier pressures.
• Less shock to pipes.
Air-operated diaphragm pumps offer a wide range of
benefits not available in any other type of pump. However,
in some applications, pulsations in the discharge flow may
be undesirable. Pulsation can be virtually eliminated by
installing a Versa-Matic ® Surge Suppressor.
At initial and subsequent start-ups . . . air cushion is
quickly established by liquid pressure pushing diaphragm
upward, permitting entrance of air into air chamber, until
the balancing air cushion causes the diaphragm to center
at its mid-stroke normal operating position.
During normal continuous operation thereafter . . .
the diaphragm always flexes at its mid-range position
to absorb discharge pulsations against the adjoining air
cushion already established.
In event of change in pumped liquid pressure . . .
the air cushion pressure is automatically increased or
decreased as required to compensate for the change . .
. always maintaining constant volume of air cushion, and
the diaphragm always operating at its mid-position.
When liquid flow stops and liquid pressure is released
. . . the air in air chamber is also exhausted to atmosphere.
Surge Suppressor
• Automatically maintains a constant volume of air cushion
for most effective surge suppression, regardless of pump
pressure.
• Automatically self-charging and self-venting to maintain
most efficient air cushion pressure . . . no more precharge
pressure calculations or guesswork, no manual
pressurizing, no periodic pressure checking.
• Air cushion separated from product by flexible diaphragm
. . . prevents product aeration.
• External visual indication provides constant evidence of
performance.
• Simple to install. Attention-free.
Models VTA2 and VTA50
Design Level 2
2-inch Surge Suppressor for use
with 1½, 2-inch pumps
Air Supply connection is ¼" NPT
external pipe thread.
Maximum Operating Pressure – 125 psi.
Models VTA1 and VTA25
1-inch Surge Suppressor for use
with 1-inch pumps
Air Supply connection is ¼" NPT
external pipe thread.
Maximum Operating Pressure – 125 psi.
Models VTA3 and VTA80
Design Level 2
3-inch Surge Suppressor for use
with 3-inch pumps
Air Supply connection is ¼" NPT
external pipe thread.
Maximum Operating Pressure – 125 psi.
WITHOUT SUPPRESSOR WITH SUPPRESSOR
PUMP CYCLING RATE
DISCHARGE PRESSURE
Models VTA1½ and VTA40
1½-inch Surge Suppressor for use
with 1½-inch pumps
Air Supply connection is ¼" NPT
external pipe thread.
Maximum Operating Pressure – 125 psi.
Quality System
ISO9001 Certified
Environmental
Management System
ISO14001 Certified