WITA ADELINO NA, Инструкция по установке и эксплуатации

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1.1 Pump Applications
The NA(m) stainless steel submersible electric pump (hereinafter refer to as “electric pump”) is widely applied in the fields
such as irrigation, garden spraying, well, water tower, urban construction, water tower, plants and so on.
1.2 Pump Introduction
The NA(m) electric pump consists of pumps, motor, seal and stainless steel shell. The multistage impeller and guide
blade is located at the lower part of the pump. The oil-filled single or three phase motor is located at the upper part of the
pump. Between the pump and the motor, there is a single-end mechanical seal adopted as dynamic seal. “O”-shaped oil
resistant rubber gasket is applied to each fixed stop mouth as static seal. The pump, motor and the seal are enclosed in
the stainless casing. The casing consists of stainless steel bottom for inlet at the lower part, stainless steel sleeve barrel at
middle part and stainless steel top hood for outlet at upper part.
1. Product Information
Pos. Component Material
1 Capacitor(Single-Phase) ---
2 Pump Sleeve Stainless Steel
3 Stator ---
4 Housing Stainless Steel
5 Lower Bearing 7203B
6 Mechanical Seal 103-16/20.5 B:A
7 Cover Plate PPO+G30
8 Guide Vanes PPO+G30
9 Rubber Bearing NBR
10 Shaft Sleeve Stainless Steel
11 Base Stainless Steel
12 Pedestal Brass
13 Impeller Stainless Steel/PPO+G30
14 Lower Seat PA66G30
15 Oil Chamber HT200
16 Rotor AISI 304 + Steel 45#
17 Upper Bearing 6202
18 Cover Stainless Steel
19 Float Switch(Single-Phase) ---
20 Power Cable ---
1.3 Application Conditions
The electric pump can normally and continuously work under the following conditions:
1. Water temperature lower than +40°C
2. The pH value of the medium is between 6.5~8.5
3. Volumetric ratio of solid-containing impurities in medium is not exceed 0.1%, the granule size in not larger than 0.2mm
4. Power frequency: 50Hz. 230V for single phase voltage and 400V for three phase voltage. The fluctuation of the voltage
is in the range of 0.9 to 1.1 times of the rated value
5. The depth at which the pump is submerged under the water must be less than 20 meters
6. According to DIN VDE 0100, a submersible motor pump may only be used outdoors if the pump is equipped with 10m
connection cable without intermediate connection. For submersible pumps used for construction sites and garden ponds,
H07.... type cable is necessary.
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