March 2024 — Prom-nasos.com.ua

Borehole pumps are reliable devices that are used to lift water from deep wells of different diameters or reservoirs. Deep pumps have become a necessary component of modern water supply systems, providing reliable water supply both in everyday life and in industry. 4SD pumps can be used in both vertical and horizontal (surface) positions. To raise water to the surface from a well, the pumps are installed vertically and lowered into the well on a water-lifting pipe (plastic or metal) and additionally secured with cables. To pump water from reservoirs, the pump can be installed in a horizontal position on a special stand with a cooling casing. For efficient and trouble-free operation of pumps, they should be used with control panels. The pump control panel not only provides automation of water supply, but also provides protection against dry running, overload, and also protects against phase loss, phase imbalance, and overvoltage.

Pumps of a well-known manufacturer Allweiler ALLHEAT are intended for the circulation of heat carriers such as grease or hot water at high temperatures (water up to 207°C or thermal oil up to 350°C). In particular, the NTWH/CTWH series pumps are single-stage horizontal centrifugal pumps with optimized bearing support, with spiral casing. Thanks to the long cooling section, no additional cooling is required. The massive slide bearing is pumped fluid lubricated, available in SSiC/SSiC or carbon/steel. The large area of the specially designed mechanical seal chamber prevents dry running. Before sealing the shaft, a safety gland and the following throttle section are installed. The following shaft seals are used in these pumps: Uncooled, balanced or unbalanced, according to DIN 24 960. Mechanical seal Product code U2.11A - balanced, Product code U3.3A - unbalanced (Burgmann 951534 037797000 AQ1VGG). Materials: moving ring - graphite A, counter ring - SiC, silicon carbide Q, spring - CrNiMo steel, sealing rings - fluorine rubber (FPM) V.