Nijhuis HMF Pump 1.700.700 and 1.800.700 Nijhuis HMF Pump 1.700.700 and 1.800.700

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Model HMF Pump 1.700.700 and 1.800.700
Titel Nijhuis HMF Pump 1.700.700 and 1.800.700
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Nijhuis pumps HMF1.700.700 en 1.800.700

Overhauling / Repair Specification Nijhuis HMF Series Pump 1-700-700 and 1-800-700. These are two new (surplus) separate pumps !
General description/background history: Both pumps have been never put in service by the first owners. The 1-800-700 A came from Volker Stevin and was stocked as a spare pump. Fischcon bought the pump as a first stage for testing purposes. Pump has little running hours with Fresh water only. The 1-700-700 was bought by De Groot in Nijkerk, put in service, but no running hours.
Both pumps have been taken apart, checked on damaged internal parts, as wear ring, impellor and inner pump housing. All casted parts has been steel-shot blasted on in/outside ,for the impellor and housing. The bearing housing on the outside only. The housing and impellor are coated inside with 3 layers of Apexior No.3 anti corrosive paint .The pump outside surface, spray-painted with two layers of primer and off white finish matt paint. The pumps are put together using new O rings/seals/ gaskets/ bolting, bearings cleaned and put on new grease. New gland packing. The 1-700-700 did have a damaged wear-ring, this has been replaced and tolerance brought back to the factory recommendation (+0.45 mm larger than impellor). The pump is loose, and can be rotated by hand. Although the pumps do have a history, they can be put in service immediately, for many years to come.
Pump data:
HMF1-700.700
Design : End Suction, single stage, non-self-priming
Type : HMF1-700.700 (HMF1-70.70)
Stages : One (1)
Speed : 500 – 750 rpm
Direction of rotation seen against shaft end : C.W.
Suction/discharge flanges : DN700/PN10 – DN700/PN10
Impeller type : Screw Spiral
Impeller installed : Ø 685 mm
Shaft sealing : soft packing / Gland
Bearings : Ball bearing
Capacity : 5.000 m³/h
Total Head : 20 mwc
N.P.S.H. required : 7.3 mwc
Efficiency : 79 %
Absorbed power at highest duty point : 380 kW

(Duty points according ISO9906: 1999e grade 2 and specific weight 1.00 kg/m³)

Pump materials:
Pump casing : Cast Iron - GG25
Impeller : Cast Iron - GG25
Wear ring : Cast Iron - GG25
Shaft sleeve : Stainless steel - AISI-304 / Nitrated
Pump shaft : Stainless steel - AISI-4122 (X35CrMo17)
Bolting : Steel-45
More specs available !

HMF1-800.700
Design : End Suction, single stage, non-self-priming
Type : HMF1-800.700 (HMF1-70-80)
Stages : One (1)
Speed : 500 – 750 rpm
Direction of rotation seen against shaft end : C.W.
Suction/discharge flanges : DN800/PN10 – DN700/PN10
Impeller type : Screw Spiral
Impeller installed : Ø 697 mm
Shaft sealing : soft packing / Gland
Bearings : Ball bearing
Capacity : 5.118 m³/h
Total Head : 25 mwc
N.P.S.H. required : 6.5 mwc
Efficiency : 84.9 %
Absorbed power at highest duty point : 410 kW

(Duty points according ISO9906: 1999e grade 2 and specific weight 1.00 kg/m³)

Pump materials:
Pump casing : Cast Iron - GG25
Impeller : Cast Iron - GG25
Wear ring : Cast Iron - GG25
Shaft sleeve : Stainless steel - AISI-304 / Nitrated
Pump shaft : Stainless steel - AISI-4122 (X35CrMo17)
Bolting : Steel-45
More specs available !

If you like more information about the pumps, please contact Leon Zwijnenburg via phonenumber: 0031 347 745602


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Stuur e-mail


Contactgegevens

Mevr. R.T. Prudon


Bedrijfsgegevens

Compressor Systems Holland B.V.

Tuinschouw 4
4131 MD, VIANEN
Gelderland
Netherlands

Lid sinds:19-07-2018
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Nijhuis HMF Pump 1.700.700 and 1.800.700 Nijhuis HMF Pump 1.700.700 and 1.800.700 specificaties