Sterling SGM-250A manual 4Specifications, Sand and Gravel Automatic Backwash Filters, Page

4Specifications

Sand and Gravel Automatic Backwash Filters

•Model SGM-250A is equipped with automatic valves operated from a time device so that backwash is accomplished periodically on an automatic basis.

			Dimensions in. (cm)					Shipping		Pressure
Model		L			W		H	weight		differential
number	in.	cm		in.	cm	in.	cm	lbs.	Kg	backwash c
SGM-250A	40	101		48	122	39	99	1,800	818	SG-250P

cModel SGM-250P. Automatic valves are operated from pressure switch. Pressure switch monitors the pressure drop in the filter media and activates backwash cycle at preset pressure drop.

Centri-Separator Systems

Note: Not to be used for closed-loop or chilled water systems; back flushing eliminates chemicals added to the system.

						Dimensions
						in. (cm)					Shipping
Model				L		W			H		weight
number		Description		in.	cm	in.	cm	in.		cm	lbs.	Kg
CSM-150	• 150-ton (453,600	Kcal/hr) tower maximum		29	74	19½	50	26	66		130	60
	• 300-ton (907,200	Kcal/hr) chiller maximum		29	74	19½	50	26	66		130	60
CSM-400	• 400-ton (1,209,600		Kcal/hr) tower maximum	26	66	20	51	41	104		150	69
	• 800-ton (2,419,200		Kcal/hr) chiller maximum	26	66	20	51	41	104		150	69

BFS Series Bag Filters

Note: Can be used for full flow or bypass.

	Max. flow		No. filter bags			Pipe size
Model c	gpm	lpm	required	supplied	inches	mm
BFS-30	30	113	1	3	1½” NPT	38 mm
BFS-65	65	246	1	3	2½” NPT	63 mm
BFS-90	90	340	1	3	2½” NPT	63 mm
BFS-200	200	757	1	3	3” (flanged)	76 mm (flanged)
BFS-300	300	1,135	2	6	4” (flanged)	102 mm (flanged)
BFS-450	450	1,703	3	12	5” (flanged)	127 mm (flanged)

cSingle cell filters include bypass, pressure gauges and 25 micron filter bags. Multi-cell filters include pressure gauges and 25 micron filter bags.

SWF Series Full Flow Stainless Steel Filters

•Maximum working pressure is 100 psi (689.5 kPa/6.895 bars); 150 psi (1,034.25 kPa/10.343 bars) is available.

•Maximum operating temperature is 110ºF (43ºC). Consult factory for higher temperatures.

	Maximum flow		Connection size/flange
Model cd	gpm	lpm	inches	mm
SWF-100	100	378	2” flange	51 mm flange
SWF-200	200	757	3” flange	76 mm flange
SWF-350	350	1,325	4” flange	102 mm flange
SWF-750	750	2,839	6” flange	152 mm flange
SWF-1300	1,300	4,920	8” flange	203 mm flange
SWF-2000	2,000	7,570	10” flange	254 mm flange

c80 mesh screen size is standard for stainless steel strainer basket. 40 mesh can be used for tower water. Specify mesh size. d Valving and bypass are not included with SWF Series stainless steel filters.

Water Management Systems and Products Page 13