Sandpiper S15 Non-Metallic User Manual download pdf (Page 19)

520-193-000 9/02 Model S15 Non-Metallic Design Level 2 Page 17

RuppGUARD™ FOR TPE

EQUIPPED PUMPS CONCEPT

The spill prevention option prevents

the air end components from being

contaminated or damaged when a

pumping diaphragm ruptures while

pumping caustic or toxic materials. It

also helps to protect the environment.

With the installation of optional leak

detectors (either mechanical or

electronic) the diaphragm rupture can be

detected. The pump can then be shut

down and repaired before any caustic or

toxic materials can enter the air end and

be exhausted into the surrounding

environment.

RuppGUARD™ OPTION

DIAPHRAGM SERVICING

To service the diaphragms first shut

off the suction, then shut off the

discharge lines to the pump. Next shut

off the compressed air supply, bleed the

pressure from the pump, and disconnect

the air supply line from the pump. Drain

any remaining pumped liquid from the

pump. Remove the pump before

servicing.

Next, drain the fluid from the spill

prevention chambers. This can be done

by removing the bottom plug (item 49)

from each spill prevention chamber.

After the fluid from the spill prevention

chambers has been drained, the wet end

components can now be removed. See

diaphragm servicing section for detailed

instructions. The spill prevention option

has two additional TPE pumping

diaphragms (item 55). These diaphragms

are installed with the natural concave

curve toward the outer chamber (items

14 from the pump assembly drawing).

The molded directional arrows on the

diaphragms must point vertically.

FILLING RuppGUARD™

CHAMBERS WITH LIQUID

THE CHAMBERS ARE FILLED

WITH WATER AT THE FACTORY.

If you prefer to substitute another

liquid, to prevent system contamination

consult the factory first to determine

compatibility of the substitute with pump

construction.

Follow the steps listed here to replace

the liquid in the pump after disassembly

or liquid loss:

1. Drain the fluid in the spill prevention

chambers by removing the bottom two

boss plugs (items 49). Replace the

bottom two boss plugs after the fluid is

drained.

2. Remove the eight capscrews (item

10) fastening the discharge manifold and

elbows to the outer chambers (items 14).

The discharge manifolds and elbows can

now be removed.

3. Remove the top two boss plugs

(items 49). The spill prevention

chambers are filled through the exposed

ports.

4. Apply air pressure to the air

distribution valve. Install safety clip (item

1-N) into the smaller unthreaded hole in

one end cap (item 1-D). This locks the

valve spool to one side, keeping the

pump from shifting.

5. Face the side of the pump with

the installed safety clip. If the safety clip

is installed in the top end cap, fill the

left spill prevention chamber. If the safety

clip is installed on the bottom end cap,

fill the right spill prevention chamber.

6. Loosely reinstall one boss plug

(item 49) to the filled spill prevention

chamber.

7. Shut off air supply. Remove safety

clip. Adjust the air line regulator so that

air pressure slowly fills the pump. The

diaphragm expands, forcing the fluid in

the chamber to be slowly displaced.

When the pump shifts to the opposite

side, quickly install the safety clip.

8. Loosen the top boss plug on the

filled chambers. This allows fluid in the

chamber to purge trapped air from the

chamber. This can be seen by watching

the column of fluid in the sight tube.

When fluid appears at the top of the port,

quickly tighten the boss plug. Fluid loss

of 1 to 2ml is acceptable.

9. Tilt the pump so the uppermost

pipe tee (item 52) is in the vertical

position. Loosen the pipe plug (item 48).

This will allow trapped air to purge

through the pipe tee. When fluid appears

at the tee opening, reinstall the pipe

plug.

NOTE: If all air is not purged using

this procedure, remove the check valve

components from the top port of the outer

chamber (item 14). Apply manual

pressure to the pumping diaphragm by

inserting a blunt instrument into the top

port of the outer chamber and applying

pressure to the diaphragm. Loosen the

pipe plug (item 48) allowing the fluid to

purge any remaining trapped air.

Reinstall the plug.

10. Repeat steps 5 through 9 to fill

opposite spill prevention chamber.

Read these instructions

completely, before in-

stallation and start-up. It

is the responsibility of

the purchaser to retain

this manual for reference. Failure to

comply with the recommendations stated

in this manual will damage the pump, and

void factory warranty.

IMPORTANT

11. Reinstall the check valve

components, discharge manifold and

elbows to the pump. The pump is now

ready for operation.

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Sandpiper S15 Non-Metallic User Manual Page 19

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