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PN-40 UV driving wheel – OOO
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PN-40 UV driving wheel

PN-40 UV driving wheel

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In stock
Price:
123.74 EUR
Shipping:
Russia, Saratov
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Technical characteristics
  • Country of manufactureRussia
Description
The driving wheel of the PN-40 UV fire pump in the case is closed by a cover to which the soaking-up branch pipe fastens.

Pumps centrifugal firefighters (normal pressure) of the PN-40UV type are intended for water supply and water solutions of frothers with the temperature up to 303 K (30 C) with a hydrogen indicator of RN from 7 to 10,5 with a density up to 1100 kgm-3 and mass concentration of firm particles to 0,5% at their maximum size of 3 mm.

Are used for installation in the closed compartments of fire trucks, fire boats of mobile fire installations. Pumps are not intended for work on sea water.

Are made in a climatic modification of "UHL" for category of placement of 2 GOST I5I50.



Device of fire pumps. The schematic diagram of the fire pump is submitted in fig. 4.1. The driving wheel on a shaft is placed in a pump housing. The pump housing is closed by a cover. To a cover the soaking-up branch pipe closed by a cap fastens. The pump wheel on a shaft is recorded by a spline, and in the axial direction fastens a nut. The shaft of the pump is installed in the case on rolling bearings. On a shaft the tachometer drive for measurement of frequency of rotation of a wheel of the pump is installed. In an oil bathtub of the pump, through the opening closed by a stopper fill in oil. The oil bathtub is isolated from a case cavity in which the wheel, and from external environment is placed by consolidations. For ensuring work of the consolidation placed between a wheel and an oil bathroom it has to be greased. Lubricant moves by means of a butterdish. Depression is measured in the soaking-up cavity by manovakuum-meter. Discharge of the water remaining in a pump housing after switching off of the pump is made through a faucet. Oil or the water which filtered into an oil bathtub merge through the opening closed by a stopper.

Work of the pump is carried out as follows. To the soaking-up branch pipe, having removed a cap, attach the soaking-up sleeve. After filling with the water which is soaking up lines turn on the pump. A wheel, rotating, provides water supply from the soaking-up line in a pressure head branch pipe and further to the hose line.

Fig. 4.1. Schematic diagram of the centrifugal pump:
1 — the case; 2 — the driving wheel; 3 — a cover; 4 — a spline; 5 — manovakuummetr; 6 — the soaking-up branch pipe; 7 — a cap; 8 — a nut; 9 — a faucet; 10 — consolidation; 11 — the bearing; 12 — a shaft; 13 — an opening for oil discharge; 14 — the tachometer drive; 15 — an opening for oil filling; 16 — a butterdish; 17 — a pressure head branch pipe


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