Warren rupp Sandpiper S05, Service & Operating Manual

s05conductiveactelsm-rev1218

sandpiperpump

.

com

Model S05 Conductive Acetal 

15

Diaphragm Service Drawing 

with One-Piece Bonded

DIAPHRAGM  SERVICING

To service the diaphragms first shut off the 

suction, then shut off the discharge lines to the 

pump. Shut off the compressed air supply, bleed 

the pressure from the pump, and disconnect 

the air supply line from the pump. Drain any 

remaining liquid from the pump.

Step #1: See the pump composite repair 

parts drawing, and the diaphragm servicing 

illustration.

Using a 1/2" wrench or socket, remove the 

16 capscrews (items 9 & 10), and flanged nuts 

that fasten the elbows (items 16 and 17) to the 

outer chambers (items 13). Remove the elbows 

with the manifolds and spacers attached.

Step #2: Removing the outer chambers.

Using a 1/2" wrench or socket, remove the 

16 capscrews (items 9 and 10), and flanged nuts 

that fasten the outer chambers, diaphragms, and 

intermediate (item 4) together.

Step #3: Removing the diaphragm 

assemblies.

Use a 3/4" (19mm) wrench or six pointed 

socket to remove the diaphragm assemblies 

(outer plate, diaphragm, and inner plate) 

from the diaphragm rod (item 30) by turning 

counterclockwise.

Insert a 6-32 set screw into the smaller 

tapped hole in the inner diaphragm plate (item 

27). Insert the protruding stud and the 6-32 

fastener loosely into a vise. Use a 3/4" wrench 

or socket to remove the outer diaphragm plate 

(item 26) by turning counterclockwise. Inspect 

the diaphragm (item 14) for cuts, punctures, 

abrasive wear or chemical attack. Replace the 

diaphragms if necessary.

Step #4: Installing the diaphragms.

Push the threaded stud of the outer 

diaphragm plate through the center hole of the 

diaphragm. Thread the inner plate clockwise 

onto the stud. Insert the loose assembly with 

the above 6-32 fastener back into the vise. 

Use a torque wrench to tighten the diaphragm 

assembly together to 90 in lbs. (10.17 Newton 

meters) 120 in lbs. Santoprene (13.56 Newton 

meters). Allow a minimum of 15 minutes 

to elapse after torquing, then re-torque the 

assembly to compensate for stress relaxation 

in the clamped assembly.

Step #5: Installing the diaphragm assemblies 

to the pump.

Make sure the bumper (item 6) is installed 

over the diaphragm rod.

Thread the stud of the one diaphragm 

assembly clockwise into the tapped hole at the 

end of the diaphragm rod (item 30) until the inner 

diaphragm plate is flush to the end of the rod. 

Insert rod into pump.

Align the bolt holes in the diaphragm with the 

bolt pattern in the intermediate (item 4).

Fasten the outer chamber (item 13) to the 

pump, using the capscrews (items 9 and 10) 

and flanged nuts. 

On the opposite side of the pump, pull the 

diaphragm rod out as far as possible. Make 

sure the bumper (item 6) is installed over the 

diaphragm rod. 

Thread the stud of the remaining diaphragm 

assembly clockwise into the tapped hole at the 

end of the diaphragm rod (item 30) as far as 

possible and still allow for alignment of the bolt 

holes in the diaphragm with the bolt pattern 

in the inner chamber. Install diaphragms with 

convolutions facing towards center of pump. 

See sectional view on previous page.

Fasten the remaining outer chamber (item 

13) to the pump, using the capscrews (items 9 

and 10) and flanged nuts.

Step #6: Re-install the elbow/spacer/

manifold assemblies to the pump, using the 

capscrews (items 9 & 10) and flanged  nuts.

The pump is now ready to be  

re-installed, connected and returned to operation.
OVERLAY DIAPHRAGM SERVICING 

The overlay diaphragm (item 15) 

is designed to fit snugly over the exterior 

of the standard TPE diaphragm (item14). 

ONE PIECE DIAPHRAGM SERVICING (Bonded 

PTFE with intergral plate)

The One Piece diaphragm has a treaded 

stud installed in the intergral plate at the factory. 

The inner diaphragm plate has a through hole 

instead of a threaded hole.

Place the inner plate over the diaphragm 

stud and thread the first diaphragm / inner plate 

onto the diapragm rod only until the inner plate 

contacts the rod. Do not tighten. 

A small amount of grease may be applied 

between the inner plate and the diaphragm to 

facilitate assembly.

Insert the diaphragm / rod assembly into the 

pump and install the outer chamber. Turn the 

pump over and thread the second daiphragm 

Diaphragm  Servicing

IMPORTANT

Read these instructions completely, 

before 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.

/ inner plate onto the diaphragm rod. Turn the 

diapragm until the inner plate contacts the 

rod and hand tighten the assembly. Continue 

tightening until the bolt holes align with the 

inner chamber holes. DO NOT LEAVE THE 

ASSEMBLY LOOSE. 

5: WET END