772476 ISS F
1.1 The W+ range
This manual covers all the standard versions of the W+ pump as well
as aseptic versions (Wa+ pumps) and pumps with inducer
(Wi+ pumps). Check the pump's nameplate to make sure that you
have one of the above versions. The WHP+ and W+ 140/50 pump
versions are described in a special manual which will come with the
pump. The WK+ (pedestal pump version) is described in a supple-
mentary manual.
1.2 The W+ pump, options and extras
The following standard options are available in the W+ range:
- with or without shroud
- with frame and adjustable feet or fixed bracket
- with shaft seal in carbon/SiC or SiC/SiC
- with O-rings in EPDM or FPM (Viton) (Kalrez and possibly others)
- with single-acting shaft seal or double-action shaft seal prepared for
water-flushed or steam-flushed shaft seal
Extras:
- heating/cooling jacket
- drain valve
- sound-damping shroud
- pump trolley
- inducer (Wi+)
- double O-ring sealing of pump body fitted for sterile flushing (Wa+)
- heavy duty clamping ring, increasing the pump’s maximum
permissible outlet pressure to 25 bar (available for W+30/120,
W+55/35, W+55/60, W+60/110, W+70/40) or 20 bar (available for
W+80/80).
- W+ pumps can be supplied with all standard welding unions and
pipe couplings specified in DS/BS/DIN/SMS and ISO and DIN
flanges; or with special aseptic connections prepared for sterile
flushing (Wa+).
1.3 Identifying the pump model
A nameplate as shown in Fig. 1 is fitted on the extension frame.
Example:
Type W+22/20: Indicates pump model, here W+22/20.
125: Indicates diameter of impeller.
Serial No.: The “unique” serial number of the pump.
Order No.: APV's order number of the pump.
Year: Indicates the year of manufacture.
The vacant field can be used to identify the pump in terms of its
posi tion in the plant.
1.4 Identifying the motor model
The motor is identified by removing the shroud and reading the kW
rating and the centreline height of the motor on the type plate.
1. Introduction to the W+ programme
Fig. 1
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