Spiroscreen is the range of continuous spiral filters entirely produced by GTS from DN100 to DN600.

The filters are constructed by continuously winding a triangular section profile on round profiled lines, each intersection between the triangular and round profile is resistance welded (RW).

The spiral filters have a wide passage surface that allows for high flow rates to be achieved while keeping the water speed very low.

This allows for optimum development of the well:
• Minimum hydraulic resistance
• Reduction of fouling formations
• Less input of impurities (sand) that can damage the pump over time
• Removal of fast and complete perforation fluids.

The construction is made of stainless steel, a first choice material to withstand stress during installation or when subject to pressures and corrosion.

Sizes and specifications

from DN 100 to DN600 – from DN100 to DN600
3 levels of resistance to collapse pressure
Configurable slot according to the granulometric curve
Stainless steels in AISI 304 1.4301 or AISI 316 1.4404 quality
Junctions:
-To be welded
-Threaded M/F (trapezoidal metric or API type)

Permeabilità

Diameter (mm)	Profile series	Slot 0,3	Slot 0,5	Slot 0,7	Slot 1	Slot 1,5	Slot 2
114	250	1,15	1,79	2,35	3,07	4,03	4,78
114	300	0,98	1,53	2,03	2,69	3,58	4,30
139	250	1,40	2,18	2,87	3,74	4,91	5,82
139	300	1,19	1,87	2,48	3,28	4,37	5,24
139	350	1,03	1,64	2,18	2,91	3,93	4,76
168	250	1,70	2,64	3,46	4,52	5,94	7,04
168	300	1,44	2,26	3,00	3,96	5,28	6,33
168	350	1,25	1,98	2,64	3,52	4,75	5,76
219	250	2,21	3,44	4,52	5,90	7,74	9,17
219	300	1,88	2,95	3,90	5,16	6,88	8,26
219	350	1,63	2,58	3,44	4,59	6,19	7,51
219	400	1,44	2,29	3,07	4,13	5,63	6,88
244	300	2,09	3,29	4,35	5,75	7,67	9,20
244	350	1,82	2,87	3,83	5,11	6,90	8,36
244	400	1,60	2,56	3,43	4,60	6,27	7,67
273	300	2,34	3,68	4,87	6,43	8,58	10,29
273	350	2,03	3,22	4,29	5,72	7,72	9,36
273	400	1,80	2,86	3,83	5,15	7,02	8,58
273	450	1,61	2,57	3,46	4,68	6,43	7,92
323	300	2,77	4,35	5,76	7,61	10,15	12,18
323	350	2,40	3,81	5,07	6,76	9,13	11,07
323	400	2,12	3,38	4,53	6,09	8,30	10,15
323	450	1,90	3,04	4,10	5,53	7,61	9,37
355	350	2,64	4,18	5,58	7,44	10,04	12,17
355	400	2,33	3,72	4,98	6,69	9,12	11,15
355	450	2,09	3,35	4,50	6,08	8,36	10,29
406	350	3,02	4,78	6,38	8,50	11,48	13,91
406	400	2,67	4,25	5,70	7,65	10,44	12,75
406	450	2,39	3,83	5,15	6,96	9,57	11,77
508	400	3,34	5,32	7,13	9,58	13,06	15,96
508	450	2,99	4,79	6,45	8,71	11,97	14,73
609	400	4,00	6,38	8,55	11,48	15,65	19,13
609	450	3,59	5,74	7,73	10,44	14,35	17,66
114	250	1,15	1,79	2,35	3,07	4,03	4,78

Open Area

	250	300	350	400	450	Profile series
	2,5 x 2,38	3 x 3,65	3,5 x 5	4 x 7,25	4,5 x 9,25	L x H [mm]
Slot (mm) 0,3	10,70%	9,10%	7,90%	7,00%	6,30%	Open Area %
Slot (mm) 0,5	16,70%	14,30%	12,50%	11,10%	10,00%	Open Area %
Slot (mm) 0,7	21,90%	18,90%	16,70%	14,90%	13,50%	Open Area %
Slot (mm) 1	28,60%	25,00%	22,20%	20,00%	18,20%	Open Area %
Slot (mm) 1,5	37,50%	33,30%	30,00%	27,30%	25,00%	Open Area %
Slot (mm) 2	44,40%	40,00%	36,40%	33,30%	30,80%	Open Area %