INTRODUCTION OF WELL CASINGS AND SCREEN PIPES

Tirupati Structurals Limited is a leading manufacturer of uPVC Plain casing & Ribbed pipes TSL's ultra modern plants ensures products of the highest quality Thes pipes are made according to standard (IS : 128 18) & DIN 4925. The Pipes are manufactured as per following specifications.

Specification
Casing & Ribbed Screen Pipes are manufactured according to IS 128 18 specification.The Dimension for medium wells (depth the norms of IS : 12818 and DIN 4925 from 80 mtrs to 250 mtrs) and plain casing Pipes for shallow wells (depth upto 80 mtrs).

Normal Diameter	Outer Diameter of Pipe		Wall Thickness
Dn	Min	Max	Min	Max
40	52.0	52.0	3.5	4.0
50	64.0	64.0	4.0	4.6
80	92.0	92.0	4.0	4.6
100	117.0	117.0	5.0	5.7
125	144.0	144.0	6.5	7.3
150	169.0	169.0	7.5	8.5
175	204.0	204.0	8.8	9.8
200	229.0	229.0	10.0	11.2

Normal Diameter	Outer Diameter of Pipe		Wall Thickness
Dn	Min	Max	Min	Max
40	48.0	48.2	3.5	4.0
50	60.0	60.2	4.0	4.6
80	88.0	88.3	4.0	4.6
100	113.0	113.3	5.0	5.7
125	140.0	140.4	6.5	7.3
150	165.0	165.4	7.5	8.5
175	200.0	200.5	8.8	9.8
200	225.0	225.5	10.0	11.2
250	280.0	280.5	12.5	14.0

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Nominal Outside Diameter Nominal	Mean Outside Diameter		Outside Diameter At any Point		Class I (0.25 MPA) Indiv- -idual Value		Avg. Value	Class II (0.4 MPA) Indiv- -idual Value		Avg. Value	Class III (0.6 MPA) Indivi- -dual Value		Avg. Value	Class IV (1.0 MPA) Indivi- -dual Value		Avg. Value
Size	Min.	Max.	Min.	Max.	Max.	Min.	Max.	Max.	Min.	Max.	Max.	Min.	Max.	Max.	Min.	Max.
16	16.0	16.3	15.5	16.5										1.5	1.1	1.5
20	20.0	20.3	19.5	20.5										1.5	1.1	1.5
25	25.0	25.3	24.5	25.5										1.8	1.4	1.8
32	32.0	32.3	31.5	32.5										2.2	1.8	2.2
40	40.0	40.3	39.5	40.5							1.8	1.4	1.8	2.7	2.2	2.7
50	50.0	50.3	49.4	50.6							2.1	1.7	2.1	3.3	2.8	3.3
63	63.0	63.3	62.2	63.8				1.9	1.5	1.9	2.7	2.2	2.7	4.1	3.5	4.1
75	75.0	75.3	74.1	75.9				2.2	1.8	2.2	3.1	2.6	3.1	4.9	4.2	4.9
90	90.0	90.3	88.9	91.1	1.7	1.3	1.7	2.6	2.1	2.6	3.7	3.1	3.7	5.7	5.0	5.7
110	110.0	110.4	108.6	111.4	2.0	1.6	2.0	3.0	2.5	3.0	4.3	3.7	4.3	7.1	6.1	7.0
125	125.0	125.4	123.5	126.5	2.2	1.8	2.2	3.4	2.9	3.4	5.0	4.3	5.0	8.0	6.9	7.7
140	140.0	140.5	138.3	141.7	2.4	2.0	2.4	3.8	3.2	3.8	5.5	4.8	5.5	8.9	7.7	8.7
160	160.0	160.5	158.0	162.0	2.8	2.3	2.8	4.3	3.7	4.3	6.2	5.4	6.2	10.2	8.8	9.7
180	180.0	180.6	177.8	182.2	3.1	2.6	3.1	4.9	4.2	4.9	7.1	6.1	7.0	11.4	9.9	11.1
200	200.0	200.6	197.6	202.4	3.4	2.9	3.4	5.3	4.6	5.3	7.9	6.8	7.7	12.7	11.0	12.3
225	225.0	225.7	222.3	227.7	3.9	3.3	3.9	6.0	5.2	6.0	8.8	7.6	8.6	14.3	12.4	13.9
250	250.0	250.8	247.0	253.0	4.2	3.6	4.2	6.5	5.7	6.5	9.8	8.5	9.6	15.9	13.8	15.4
280	280.0	280.9	276.6	283.4	4.8	4.1	4.8	7.4	6.4	7.3	11.0	9.5	10.7	17.8	15.4	17.2
315	315.0	316.0	311.2	318.8	5.3	4.6	5.3	8.3	7.2	8.2	12.4	10.7	12.0	19.9	17.3	19.3

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Wall Thickness
Outside DIA	Tolerance on Outside DIA	2.0 kgf/cm2 Class I Min.	Max.	2.5 kgf/cm2 Class II Min.	Max.	4.0 kgf/cm2 Class III Min.	Max.	6.0 Kgf/cm2 Class IV Min.	Max.	10.0 kgf/cm2 Class V Min.	Max.
20	+0.3									2.3	2.8
25	+0.3									2.8	3.3
32	+0.3							2.3	2.8	3.6	4.3
40	+0.4					2.0	2.4	2.9	3.4	4.5	5.2
50	+0.5					2.4	2.9	3.6	4.2	5.6	6.4
63	+0.6			2.0	2.4	3.0	3.5	4.5	5.2	7.1	8.1
75	+0.7	2.0	2.4	2.3	2.8	3.6	4.3	5.3	6.1	8.4	9.5
90	+0.8	2.2	2.6	2.8	3.3	4.4	5.1	6.4	7.3	10.1	11.4
110	+1.0	2.7	3.2	3.4	4.0	5.0	6.0	7.8	8.8	12.4	13.8
125	+1.2	3.1	3.6	3.9	4.5	6.0	6.8	8.9	10.0	14.1	15.8
140	+1.3	3.5	4.1	4.3	5.0	6.8	7.7	9.9	11.1	15.8	17.6
160	+1.5	3.9	4.5	4.9	5.6	7.8	8.8	11.3	12.7	18.0	20.0

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