STC
Open Impeller Centrifugal Pumps開式葉輪離心泵

STC單葉輪泵
該泵低揚(yáng)程的特性使得它特別適用于農(nóng)業(yè)用途。本泵型用于灌溉以及幾乎所有要求高流量低揚(yáng)程的場(chǎng)合。每臺(tái)泵在組裝后根據(jù)ISO9000標(biāo)準(zhǔn)的質(zhì)量要求進(jìn)行液壓與電氣試驗(yàn)。
STC single impeller centrifugal pumps with low delivery pressure are specially conceived for agricultural applications. This type of pump is necessary in sliding irrigation and in general in all those applications where high flow rates at low delivery pressures are required. At the end of assembly each pump is hydraulically and electrically tested in accordance with ISO9000 quality requirements.

結(jié)構(gòu)特征Construction Features
 泵殼及電機(jī)支撐：鑄鐵
Pump casing and motor bearing: cast iron
 葉輪：功率在1.2HP以下用NORYL工程塑料；功率在1.2HP以上用黃銅或鑄鐵
Impeller: noryl GFN2 up to1.2HP drop-forged brass or cast iron over 1.2HP
 軸：不銹鋼
Shaft: stainless steel
 機(jī)械密封：石墨-陶瓷
Mechanical seal: carbon-ceramic
 電機(jī)：閉式外部風(fēng)冷型，保護(hù)等級(jí)IP54
Motor: closed ventilated external, protection IP54
 單相電機(jī)裝有預(yù)置熱保護(hù)裝置及固定聯(lián)接電容
Single-phase version equipped with built-in thermal protector and permanently connected capacitor
 三相電機(jī)不帶熱保護(hù)裝置，建議用戶自行安裝
Three-phase version not equipped with protector; we suggest users to install a protection device
 絕緣等級(jí)：F級(jí)
Insulation: class F
 二級(jí)感應(yīng)電機(jī)：50Hz (n=2900 l/min)
2-pole induction motor, 50Hz (n=2900 l/min)
 可持續(xù)工作
Continuous working

運(yùn)行條件Operating Conditions
 清潔或適度臟水clean or moderately dirty liquids
 液體溫度：1.2HP以下不高于45℃，1.2HP以上不高于90℃
Liquid temperature: maximum 45℃ up to 1.2HP; maximum 90℃ over 1.2HP
 環(huán)境溫度：不高于40℃
Ambient temperature: up to 40℃
 允許工作壓力：6bar
Maximum permissible working pressure: 6 bar

按客戶要求，可提供特殊性能Special Features on Request
 特殊電壓 special voltages
 60Hz 頻率 frequency 60Hz
 防護(hù)等級(jí) IP55 protection IP55
 特殊機(jī)械密封 special mechanical seal