Flowserve PolyChem GRP - Manual (Page 33)

USER INSTRUCTIONS POLYCHEM GRP ENGLISH 71569132 12-04A
Page 33 of 52
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When ordering spare parts the following information
should be supplied:
1) Pump serial number.
2) Pump size.
3) Part name – taken from section 8.
4) Part number – taken from section 8.
5) Number of parts required.
The pump size and serial number can be found on
the name plate located on the bearing housing. (See
figure 3-1.)
To ensure continued satisfactory operation,
replacement parts to the original design specification
should be obtained from Flowserve. Any change to
the original design specification (modification or use
of a non-
standard part) will invalidate the pump’s
safety certification.
6.3.2 Storage of spares
Spares should be stored in a clean dry area away
from vibration. Inspection and re-treatment of
metallic surfaces (if necessary) with preservative is
recommended at 6 monthly intervals.
6.4 Recommended spares and
consumable items
Recommended spares include: mechanical process
fluid seals, bearing housing lip seals, bearings,
shafting, impeller, and gaskets.
6.5 Tools required
A typical range of tools that will be required to
maintain these pumps is listed below.
Standard hand tools:

Hand wrenches

Socket spanners (wrenches)

Allen keys (wrenches)

Range of screwdrivers

Soft mallet
More specialized equipment:

Bearing pullers

Bearing induction heater

Dial test indicator

Flowserve Mark 3 tool kit. (See 6.1 below.)
Figure 6-1: Flowserve Mark 3 tool kit
6.6 Fastener torques
Figure 6-2: Recommended bolt torques - ISO (US)
Item Description Group 1
Non-lubricated Group 2
Non-lubricated Group 3
Non-lubricated
n/a Suction and discharge flange bolting 41 Nm (30 lbf•ft) 41 Nm (30 lbf•ft) 41 Nm (30 lbf•ft)
[6570.2] Bearing retainer cap screws 3 /
16
in. - 6 Nm (4 lbf•ft) 3 /
16
in. - 6 Nm (4 lbf•ft) 5 /
16
in. - 16 Nm (12 lbf•ft)
[6570.6] Bearing housing to adapter cap screws n/a ½ in - 54 Nm (40 lbf•ft) ⅝in - 122 Nm (90 lbf•ft)
[6580.2] Seal gland nuts 7 Nm (5 lbf•ft) 14 Nm (10 lbf•ft) 14 Nm (10 lbf•ft)
[3712.2] Impeller nut, polygon drive 27 Nm (20 lbf•ft) 48 Nm (35 lbf•ft) 48 Nm (35 lbf•ft)
[6570.1] Casing-to-cover bolting 14 Nm (10 lbf•ft) 14 Nm (10 lbf•ft) 14 Nm (10 lbf•ft)
[2912] Impeller nose cone nut – non-metallic 3 Nm (2 lbf•ft) 3 Nm (2 lbf•ft) n/a
[6570.3] Bearing carrier set screws ⅜in. - 16 Nm (12 lbf•ft) ½ in. - 41 Nm (30 lbf•ft) ½ in. - 41 Nm (30 lbf•ft)
6570.5] Rear foot cap screw ½ in. - 54 Nm (40 lbf•ft) ¾ in. - 217 Nm (160 lbf•ft) 1 in. - 300 Nm (228 lbf•ft)
[6570] Cap screws – all other with GRP contact 20 Nm (15 lbf•ft) 20 Nm (15 lbf•ft) 20 Nm (15 lbf•ft)
Note: 1.) For lubricated threads, use 75 % of the values given.
2.) Gasket joint torque values are for Aflas or 60 - 70 durometer Viton gaskets. Other gasket materials may require additional torque
to seal. Exceeding metal joint torque values is not recommended.