Versa-Matic AP50 User Manual

Service / Maintenance Log

Date Details Completed

MANUAL AND PARTS LIST

AP50

SUBMERSIBLE

CENTRIFUGAL PUMP

Contact Phone / Fax No.

Contact Information

DISTRIBUTOR

VERSA-MATIC® PUMP

A Unit of IDEX Corporation

6017 Enterprise Drive, Export, Pennsylvania 15632-8969 USA

TEL. : [phone] FAX. : [phone]

Web Site : www.versamatic.com

HG-CF-1032 (Rev 0)

AP50

AIR POWERED CENTRIFUGAL PUMP

1. OPERATION

1.1 Check level of oil in reservoir by removing oil filler plug (36). An
SAE 20 mineral based oil or equivalent is recommended.

Caution
Care should be taken when working with oils & greases, they

should be handled in accordance with good standards of industrial
hygiene and safety practices. Use a barrier cream, wear pvc or
neoprene gloves and overalls. Regular changes of contaminated
clothing is recommended.

1.2 Ensure that all air connections to the pump are clean and secure.
Turn on air supply to check free starting of the pump prior to
submergence in the fluid. Maximum air pressure - 8.6 Bar (125
psi). A filter / regulator located in the air supply line is
recommended.

1.3 If the pump fails to start immediately, the rotor vanes (55) may be
sticking, turn air supply on & off full bore repeatedly, to free the
vanes.

1.4 Should the pump still fail to run, turn off the air supply and
remove the base strainer (1). Turn the impeller (3) by hand to
ensure free rotation, remove solids accumulation where necessary.
Refit base strainer.

1.5 Ensure air filter (39), located in air hose union (40) is clean. Blo w
air through exhaust outlet thereby reversing the air flow, which in
turn should remove any contamination. Alternatively, remo ve air
hose union (40) and manually clean the filter.

1.6 When operating the pump fully submerged, a hose should be
fitted to vent the exhaust air to atmosphere.

2. LUBRICATION

2.1 Check oil level daily or after 8 hours of continuous use. The rate of

oil flow is set prior to despatch from the factory. Adjustmen t can be
made to the oil flow if necessary. Remove the lockscrew (26) to
gain access to the oil feed screw (25). Turn the oil feed screw (25)
clockwise to restrict oil flow and anti-clockwise to

TECHNICAL DATA

Max. Delivery : 34 M3/hr (150 GPM) Weights :-
Max. Working Pres-

sure
Max. Solid Particle

Size
Air Inlet : 3/4” NPT(M)

Exhaust Outlet : 1” BSP(F) Dimensions :-

Fluid Outlet : 2” NPT(F) Boxed

Feed Method : Submerged

: 8.6 bar (125 psi) Pump : 32.0 Kg (71Lb)

: 6mm (1/4”) Shipping (Boxed) : 33.0 Kg (72 Lb)

PERFORMANCE CURVE

: 500 x 380 x 260
(20” x 15” x 10”)

DIMENSIONS

increase oil flow. Replace lockscrew (26) to protect oil feed screw

from dama ge.

2.2 There are two grease lubrication points on the pump, both use a
Castrolease CL Light, or equivalent grease. The upper grease
nipple (67) only requires one push of the grease gun per month to
lubricate the governor mechanism. the lower grease nipple,
supplying the lower pump bearings and pump seals may be
generously filled. Remove the level plug (65) and pump grease
into the grease nipple (67) until it shows at the level plug aperture.
Replace level plug (65). Check level s regularly & ensure c orrect
grease is used. Failure to use correct grease may result in
premature seal and bearing failure.

NOTE - When operating t he pump the following guidelines

should be observed to ensure lo w maintenance.

2.3 Pumping solids increases wear, it is therefore advisable to to
arrange for the pump to stand on a firm base to prevent sinking.

2.4 When pumping abrasive solids and matter in suspension, the
impeller (3) clearance should be increased by adding more
gaskets (4) & (5) to act as shims at the flange joint.

2.5 Do not operate the pump for long periods out of the fluid as the
frictional heat generated may damage the seals and bearings.

2.6 The noise generated by the pump in confined spaces may be
objectionable, a silencer (part no. AP 50.79), is available to reduce
noise levels to an acceptable level.

2.7 When it is necessary to completely de-water tanks, bilges etc., a
perforated base plate (part no. AP50.78), is available and should
be fitted as an alternative to the standard strainer (1).

3. OVERHAUL / REPAIR

NOTE - Ensure air supply is dis-connected before attempting to

overhaul any section of the pump.

Governor Housing

3.1 Remove cylinder bolts (51) from pump as sembly. Lift the

governor housing (50) free from the pump assembly together
with air hose union assembly.

3.2 Check freedom of movement of t he upper governor section (48)
together with governor balls (31) & ball cage (30). Check for
wear or damage and replace as required.

3.3 Ensure that governor valve (45) is free by pushing against the
spring (44). If excessive wear is suspected, remove air hose unio n
(40) and withdraw governor valve. Check both valve (45) and
cylinder (34) bore for wear or damage and replace as required. If
o-rings (35) & (46) are damaged or attacked, replace as required.

3.4 Re-assemble the governor housing as above in reverse order. If
gasket (53) is damaged or soiled, replace prior to final assembly.
Ensure that an adequate supply of grease is pumped into the
housing via the grease nipple (67) prior to pump running.

Air Motor

3.5 Remove the governor housing as described above. Lift the air
motor assembly free from the pump, and place in a clean area.

Caution
In the event of the pump running without any lubrication, Rotor

Vane wear debris may be present within the air motor section.
Dust masks should be worn to prevent the inhalation of particles.

Using the cylinder bolts (51), screw into the upper bearing plate

(27) and 'jack' the plate off the cylinder body (20).

3.6 Check the rotor vanes (55) for excessive wear and replace as
required. Ensure that the springs (54) are correctly positioned
prior to re-assembly.

3.7 B oth upper and lower bearings s hould turn freely, if diffic ulty is
experienced, replace immediately. Ensure all components are
clean prior to re-assembly.

3.8 Re-assemble the air motor as described above in reverse order. If
gasket (61) is damaged or soiled, replace prior to final assembly.

Ensure the slots of the coupling nut (63) are correctly engaged in

the impeller shaft (74) before fully tightening of the cylinder b olts
(51).

REF No. PART No. DESCRIPTION MATERIAL QTY

42 Z100 BLANKING PLUG PVC 1
43 AP50.76 GOVENOR SHIM STEEL A/R
44 AP50.06 GOVENOR SPRING STEEL 1
45 AP50.07 GOVENOR VALVE STEEL 1
46 AP50.08 O-RING NITRILE 1
47 AP50.10 CIRCLIP HT. STEEL 1
48 AP50.16 UPPER GOVENOR SECTION STEEL 1
49 AP50.75 LOCATING DOWEL STEEL 1
50 AP50.14 GOVENOR HOUSING CAST IRON 1
51 AP50.26 CYLINDER BOLT HT. STEEL 5
52 AP50.21 UPPER BEARING STAINLESS STEEL 1
53 AP50.24 GOVENOR HOUSING GASKET PAPER 1
54 AP50.32 VANE SPRING BERILLIUM COPPER 4
55 AP50.205 VANE FEROFORM 4
56 AP50.30 ROTOR CAST IRON 1
57 AP50.36A ROTOR SHIM (0.002”) STEEL A/R
58 AP50.36B ROTOR SHIM (0.003”) STEEL A/R
59 AP50.36C ROTOR SHIM (0.005”) STEEL A/R
60 AP50.37 ROTOR SPACER BRASS 1
61 AP50.40 INTERMEDIATE GASKET PAPER 1
62 AP50.34 LOWER BEARING STAINLESS STEEL 1
63 AP50.39 COUPLING NUT STEEL 1
64 AP50.35 CIRCLIP HT. STEEL 2
65 AP50.74 LEVEL PLUG HT. STEEL 1
66 AP50.38 ROTOR COUPLING ACETAL 1
67 AP50.45 GREASE NIPPLE STEEL PLATED 2
68 Z103 BLANKING CAP PVC 1
69 A038 HEX. HEAD BOLT - M12 x 45 HT. STEEL 2
70 C137 SPRING WASHER - M12 HT. STEEL 2
71 B037 HEX. NUT - M12 HT. STEEL 2
72 AP50.208 OUTLET FLANGE - NPT EN8 1
73 AP50.206 OUTLET FLANGE GASKET CAF 1
74 AP50.46 IMPELLER SHAFT STEEL 1
75 1A010 SEAL NITRILE 2
76 A008 HEX. HEAD BOLT - M6 x 20 HT. STEEL 4
77 C174 SPRING WASHER - M6 HT. STEEL 4
78 AP50.57A IMPELLER SHIM STEEL A/R
79 AP50.47 IMPELLER KEY STEEL 1
80 AP50.59 WASHER BRASS 1
81 AP50.58 IMPELLER NUT BRASS 1
82 A133 HEX. HEAD BOLT - M10 x 50 HT. STEEL 3
83 C134 SPRING WASHER - M10 3 HT. STEEL

PARTS LIST

REF No PART No. DESCRIPTION MATERIAL QTY

1 AP50.60 STRAINER S.G. IRON 1
2 AP50.55 VOLUTE CAST IRON 1
3 AP50.57 IMPELLER GUNMETAL 1
4 AP50.56 VOLUTE SHIM (0.010”) PLASTIC A/R
5 AP50.56A VOLUTE SHIM (0.015”) PLASTIC A/R
6 AP50.52 SEAL NBR/ST.STEEL 2
7 A135 HEX. HEAD BOLT - M10 x 25 HT. STEEL 4
8 AP50.51 BEARING HOUSING CAST IRON 1

9 AP50.43 BUSH MANGANESE BRONZE 1
10 AP50.42 BEARING NUT STEEL PLATED 1
11 AP50.41 BEARING STAINLESS STEEL 1
12 AP50.80 NAMEPLATE BRASS 1
13 K076 HAMMERDRIVE SCREW - No6 x 3/16 STEEL PLATED 2
14 AP50.67 HANDLE M.S. TUBE 1
15 A063 HEX. HEAD BOLT - M10 x 40 HT. STEEL 2
16 AP50.44 INTERMEDIATE SECTION CAST IRON 1
17 AP50.33 LOWER BEARI NG PLATE GUNMETAL 1
18 AP50.20A DOWEL HT. STEEL 4
19 AP50.25A LOCATING SCREW HT. STEEL 1
20 AP50.20 CYLINDER BODY S.G. IRON 1
21 AP50.25 CYLINDER LINER CAST IRON 1
22 AP50.29 ROTOR SHAFT HT. STEEL 1
23 AP50.28 ROTOR KEY KEY STEEL 1
24 AP50.13 FELT PLUG FELT 1
25 AP50.15 ADJUSTING SCREW HT. STEEL 1
26 AP50.09 LOCKSCREW HT. STEEL 1
27 AP50.22 UPPER BEARING PLAT E GUNMETAL 1
28 AP50.23 CIRCLIP HT. STEEL 1
29 AP50.19 LOWER GOVENOR SECTION STEEL 1
30 AP50.18 BALL CAGE ACETAL 1
31 AP50.17 GOVENOR BALL STEEL 2
32 AP50.72 THRUST PAD STEEL 1
33 AP50.07A GOVENOR VALVE BALL CARBIDE STEEL 1
34 AP50.04 GOVENOR CYLINDER BRASS 1
35 AP50.05 O-RING NITRILE 1
36 AP50.11 OIL FILLER PLUG STEEL 1
37 AP50.12 WASHER FIBRE 1
38 AP50.03 SPRING SPIGOT BRASS 1
39 AP50.02 AIR FILTER STAINLESS STEEL 1
40 AP50.207 HOSE UNION - NPT STEEL 1
41 Z128 BLANKING PLUG PVC 1

Pump Body

3.9 Remove governor housing and air motor as previously described.
Remove bolts (7) from volute (2) and lift pump body assembly
free.

3.10 Turn pump body over, lock impe ller and remove nut (81) together
with impeller (3) from intermediate section (16).

3.11 Remove bolts (76) and withdraw bearing housing assembly (8)
from intermediate section (16).

3.12 Turn impeller shaft (74) and check for ease of movement and
quality of impeller bearing (11). Replace bearings as required.

3.13 To replace bearing (11), remove circlip (7) and withdraw impeller
shaft (74) from housing (8). Unscrew impeller nut (10) and
withdraw bearing (11).

3.14 Check impeller seals (75) and o-ring (6) for wear or damage,
replace as required. Ensure correct position of seals (75) so that
lips face the impeller.

3.15 If impeller is damaged or excessively worn, performance of the
pump will be reduced. When replacing, the impeller must be
adjusted to within 0.005" to 0.010" from the volute (2) internal
face for maximum efficiency. This is achieve by the addition or
subtraction of shims (4) & (5).

3.16 Re-assemble the pump as described above in reverse order. Ensure
all fittings are tight and sec ure before running the p ump.