Sandpiper S30, Service & Operating Manual

s30nmdl2sm-rev0614 

                                                 Model S30 Non-Metallic Page 18

SPILL CONTAINMENT FOR  TPE 

EQUIPPED PUMPS CONCEPT

The Spill Containment 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.

SPILL CONTAINMENT 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 

Containment chambers. This can be 

done by removing the bottom plug 

(item 50) from each Spill Containment 

chamber.

After the fluid from the Spill 

Containment chambers has been 

drained, the wet end components 

can now be removed. See diaphragm 

servicing section for detailed 

instructions. The Spill Containment 

option has two additional TPE pumping 

diaphragms (item 46). 

FILLING  SPILL CONTAINMENT 

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 

Containment chambers by removing 

the bottom two boss plugs (items 50). 

Replace the bottom two boss plugs 

after the fluid is drained.

2. Remove the eight capscrews 

(item 11) fastening the discharge 

manifold and elbows to the outer 

chambers (items 15). The discharge 

manifolds and elbows can now be 

removed.

3. Remove the top two boss plugs 

(items 50). The Spill Containment 

chambers are filled through the 

exposed ports.

4. Apply air pressure to the air 

distribution valve. Install safety clip 

(item 1-F) into the smaller unthreaded 

hole in one end cap. 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 Containment chamber. If 

the safety clip is installed on the bottom 

end cap, fill the right Spill Containment 

chamber. The volume of fluid is 3770 

ml (127.5 fl. oz.). It is important that the 

exact amount of fluid is used. Too little 

or  too  much  fluid  causes  premature 

diaphragm failure and erratic pumping.

6. Loosely reinstall one boss plug to 

the filled Spill Containment 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 53) is in the vertical 

position. Loosen the pipe plug (item 

49). 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 15). 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  49)  allowing  the  fluid 

to purge any remaining trapped air. 

Reinstall the plug.

10. Repeat steps 5 through 9 to fill 

opposite Spill Containment chamber.

11. Reinstall the check valve 

components, discharge manifold and 

elbows to the pump. The pump is now 

ready for operation.

Read these instructions 

c om ple t e ly,  be for e 

installation 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