drilling fluid pump

THE HAPONIC VP 125/400 pump is

designed to transport concrete or

similar materials. Its main use is

the pumping of rinsing suspension

during rotary drilling. Its advantages include easy maintenance and service. It can be installed

directly onto a drilling unit of corresponding dimensions. (eg. open mine drilling units Hausherr).

The pump is driven by hydraulic carriers. The VP 125/400-A model is equipped with its own

electrohydraulic drive.

The pump has two drive cylinders arranged above each other, anchored by fixed pistons at each

end. There are small canals along the axis of the piston allowing the inflow and outflow of oil.

The lateral area of the cylinders moves in a manner which, with the aid of collars and centric

carriers, is then transmitted along the co-axis with arranged plungers between the hydraulic

cylinders. The centric carrier joins both cylinders with the plungers, but also allows the cylinders

a certain radial movement - it is important to the life expectancy of the seal. The operating cylinder,

the cylinder head and the hub of the seal are manufactured in one piece, individually for each

plunger. Simple valves with a freely floating ball as a closing device are easily dismantled

and accessible for cleaning.The seal with a stuffing box flange enables not only a Chevron packing

(standard step) to be used, but also a packing cord for example, when necessary. The machine

is equipped with independent water distribution for seal lubrication.

The VP 125/400-A pump is instaled into a simple frame together with the hydraulic aggregate.

The entire machine is driven by a 15 kW electromotor, reaching an output of 3,2 MPa without

overload.

TECHNICAL DATA

Max.output pressure:	4 MPa *	DIMEMSIONS: (in brackets the dimensions of the independent pump)
Max.supply of material:	200 l/min	WIDTH 1000 mm (500 mm)
		LENGHT: 1915 mm (1900 mm)
		HEIGHT: 1100 mm (750 mm)

Power supply: 15kW (VP 125/400-A)
Machine weight with aggregator: cca 1150 kg (independent pump approx. 400 kg)

* VP 125/400-A only 3,2 MPa with regard to the electric motor overload