Catalogues - compressors-fo-shipping

Catalogue Compressors fo Shipping

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3-stage air-cooled

At the beginning of the 70ies, Sauer & Sohn developed the 3-stage air-cooled compressor in collaboration with wellknown German shipping companies in order to cover the increasing demand for low-maintenance auxiliary machines used in international shipping - a branch which suffered considerable pressure of costs. Due to the 3-stage air-principle, general advantages of the air-cooled system could also be used for bigger compressor capacities.

In addition, the division of the pressure ratio into 3 stages - instead of 2 stages as in traditionally used water-cooled industrial compressors - considerably decreases compression temperatures.

The consequence: Even when standard mineral oil is used, as e. g. circulating oil in main engines, any carbonization of compressor valves belongs to the past.

If you require references, please do not hesitate to contact us!

3-stage air-cooled

2-stage water-cooled

1. stage 2.3 bar

2. stage 8.9 bar

300

Thermal cracking

of synthetic oils

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Thermal cracking

of mineral oils

200 .

100 ,

45 ,

compression

Temperature rise of air during compression

3-stage air-cooled starting-air compressors

Technical Data for a final pressure of 30 bar

Dimensions


	Final	Stages	Cylinder	Speed	Charging	Power	Heat	Weight	Length	Width	Height
	pressure			rpm	Capacity	consumption	Dissipation	kg	mm	mm	mm
	max. bar				m³/h	kW	kJ/sec
WP81 L	45	3	3	1170	66,0	13	14,3	415	1345	945	900
				1470	82,5	15	17,6
				1770	100,0	18	20,9
WP101 L	45	3	3	1170	83,0	16	17,6	430	1385	945	900
				1470	101,0	20	22,0
				1770	121,0	24	26,4
WP121 L	45	3	3	1170	98,0	19	20,9	655	1565	925	955
				1470	121,0	24	26,4
				1770	145,0	30	33,0
WP151 L	45	3	3	1170	119,0	23	25,3	700	1575	925	955
				1470	150,0	30	33,0
				1770	180,0	38	41,7
WP 271 L	45	3	4	1170	180,0	33	36,0	900	1765	1068	1077
				1470	225,0	41	45,0
				1770	275,0	49	54,0
WP311 L	45	3	4	1170	240,0	38	42,0	960	1865	1068	1077
				1470	300,0	50	55,0
				1770	360,0	63	67,0

Performance data with 5% tolerance, referred to 20° C and an air pressure of 1013 mbar. Charging Capacity according to ship building regulations. Performance data on final pressure deviating from 30 bar upon request.

Weights and dimensions for standard units with three-phase A. C. motor, IP 54, andßexible mounting.