Monoflo 'HydraPlus' or 'Hydra+' series is a multi-stage ring section designed for medium to high head applications. The range covers 10 sizes, up to 13 stages for most sizes. The versatile and modular design, increase the level of interchangeability of parts between the various models-sizes of pumps.
Design excellence | Optimum hydraulic design, ensuring minimum number of stages, hence reducing shaft length and distance between bearings. This results in minimum pump wear, thus extending its operating reliability and life efficiency.
Where space is a constraint, Hydra+ can be vertically mounted(Model HDV) with no compromise in its performance.
External tie-rods hold together the suction & discharge casings, the intermediate casings & diffusers.
The shaft is supported by sturdy, grease lubricated cylindrical roller bearing at the drive-end of the pump, and double-row deep-groove ball bearing at the pressure-side.
Optimum hydraulic design, ensuring minimum number of stages, hence reducing shaft length and distance between bearings. Machined in high quality 420 stainless steel material as standard. Available as options, are 316SS and duplex stainless steel.
Shaft sealing are available in two variants - 'gland packing rings' or mechanical seals(single or double type), and come with options including external flushing and /or cooling.
Flanges standard is in accordance to ISO7005.2:1988. Hydra+ offers flexibility in configuring the orientation of the pump suction connection, adapting to the system pipelin. Suction branch normally arranged horizontally towards the right when viewed from the drive end, whilst the discharge branch is radially upwards. For models HD25 to HD65, suction branch can be positioned towards the left when pump incorporates only two stages, and can even be directed upwards when the number of stages is more than two.
The pump casing is divided into sections perpendicular to the shaft axis. The radial fit of the vertically split sections give ease in disassembly & reassembly of pumps during maintenance. External tie-rods hold together the suction & discharge casingsm the intermediate casings and diffusers. Each sections are sealed by means of o-rings.
Flange is in accordance to ISO7005.2:1998. Up to HD80, the nominal pressure is 4.0MPa. From HD100, the flange pressure is 1.6MPa.
Replaceable double wear rings are fitted on every stage, hence increase maintainability.
The impellers are radial flow enclosed-type. They are individually hydraulic-balanced.
The mounting feet are integrally cast on at the bottom of the suction & delivery casings for pump discharge size larger than 65mm. For smaller pump sizes, mounting feet at the suction end is cast on the first stage which enable different suction branch positions.
General water transfer; pressure supply booster systems; fire protection (fighting) & water feature applications.
Hot & cold water circulationl pumping machine cooling; process water; marine & shipbuilding; and other manufacturing processes.
Mine general water supply; mine dewatering; generation of power; mining process.
Horticultural irrigation & sprinkler sys.
Clean water or slighty-aggressive liquid compatible to pump material of construction.
|HD(V)25 to HD(V)65||Up to 40 bar [-10oC ~ 120oC]|
|Up to 30 bar [-120oC ~ 190oC]|
|HD(V)80 to HD(V)200||Up to 30 bar [-10oC ~ 120oC]|
|Up to 27 bar [-120oC ~ 190oC]|
Maximum capacity up to 139 litres/sec (500m3/hr).
Maximum discharge pressure up to 395 metres (39 bar).
Up to 105oC ~ 140oC with standard shaft seals and optional cooling.
From 140oC to 190oC, with special seals and cooling arrangements.
Nominal operating speed is 2,900 r.p.m. at 50Hz and 3,600 r.p.m. at 60Hz.
In accordance to ISO7005.2:1998