Plidco Type B Sleeves with Back-up Strips

• Customization: Available
• After-sales Service: 1 Year
• Warranty: 1 Year
• Model NO.: GW30
• Material: ASTM A36 A572 Gr.50 API 5L
• Connection: Welding
• Working Pressure: 235-6400 Psi
• Rubber Material: Buna-N Packing, Viton, Silicone and etc
• Packing: Plywood Case
• Range of Sizes: 1 1/2′′-48′′
• Transport Package: Wooden Box
• Specification: 4′′ to 30′′
• Trademark: GREAT WALL
• Origin: China
• Package Size: 60.00cm * 60.00cm * 60.00cm
• Package Gross Weight: 60.000kg

Product Description

Full Encirclement Welded Split Sleeve 
Type B Sleeves :
 

 
1. PLIDCO Type Full Encirclement Welded Split Sleeves are typically used for two applications:
   pressure containing and non-pressure containing .

 A.  pressure containing 

The application is pressure containing when the split sleeves is installed over a known leak .
For a pressure containing application, the wall thickness of split sleeve and all welds must be able to contain the full operating pressure of pipeline .
The longitudinal weld joint formed by the two halves of the split sleeve must be a full thickness butt weld .
The circumferential joint formed by the split sleeves welded to pipeline must be a full thickness fillet weld . 

B. Non-pressure containing 

The application is non-pressure containing if the split sleeves is not installed over a known leak and the intended use is only to reinforce a damaged area of the pipe.  
The longitudinal weld joint formed by the two halves of the split sleeve must be a full thickness butt weld .
The circumferential joint does not have to be welded, but should be sealed with a coating to prevent ground water from penetrating the crevice between the sleeve and the pipe .
If the circumferential joint is welded, the application should be assumed to be pressure containing and all the requirements of a pressure containing application now apply .

2. PLIDO Type Full Encirclement Welded Split Sleeve are usually fabricated in length of 5 or 10 feet.
But you can define the length of split sleeve as per your own demand .
Back-up  strips for the longitudinal butt welds are furnished with all sleeves .

3. PLIDCO Type Full Encirclement Welded Split Sleeve conform to ASME B31.4 and B31.8 as well as US Department of Transportation (US DOT) requirements . Individual company codes and safety pratices should be observed .US DOT requires that population density be considered in the installation area for natural and other gas pipelines ( DOT section 192.5). Table showing maximum operating pressure PLIDCO Type Full Encirclement Welded Split Sleeve by size, materials of construction and class location are shown beside 

4. Standard body materials 
- ASTM A36
- ASTM A572 Gr.50 

Recommended Working Pressure(PSI)

Class I
Sparsely populated areas

API Nominal Pipe Size (In.)	A-36 Steel Plate				A-572-Gr.50 Steel Plate
	1/4'' WALL	5/16'' WALL	3/8'' WALL	1/2'' WALL	1/4'' WALL	5/16'' WALL	3/8'' WALL	1/2'' WALL
4	2529	3086	3617	4608	3512	4286	5023	6400
6	1788	2197	2592	3345	2483	3051	3600	4645
8	1401	1728	2046	2658	1946	2400	2842	3692
10	1139	1409	1672	2183	1582	1957	2323	3032
12	969	1200	1427	1868	1346	1667	1982	2595
14	886	1098	1307	1714	1231	1525	1815	2380
16	780	967	1152	1514	1083	1343	1600	2102
18	696	864	1030	1355	966	1200	1430	1882
20	628	781	931	1227	873	1084	1293	1704
22	573	712	850	1121	796	989	1180	1557
24	526	655	782	1032	731	909	1085	1433
26	487	606	723	956	676	841	1005	1327
28	453	563	673	890	629	783	935	1236
30	423	527	630	833	588	732	874	1157

Class II
Fringe Areas Around Urban Centers
 

API Nominal Pipe Size (In.)	A-36 Steel Plate				A-572-Gr.50 Steel Plate
	1/4'' WALL	5/16'' WALL	3/8'' WALL	1/2'' WALL	1/4'' WALL	5/16'' WALL	3/8'' WALL	1/2'' WALL
4	2107	2571	3014	3840	2927	3571	4186	5333
6	1490	1831	2160	2787	2069	2542	3000	3871
8	1168	1440	1705	2215	1622	2000	2368	3077
10	949	1174	1394	1819	1319	1630	1935	2526
12	807	1000	1189	1557	1121	1389	1651	2162
14	738	915	1089	1428	1026	1271	1513	1983
16	650	806	960	1261	902	1119	1333	1752
18	580	720	858	1129	805	1000	1192	1569
20	524	651	776	1022	727	904	1078	1420
22	477	593	708	934	663	824	984	1297
24	439	545	651	860	609	758	905	1194
26	406	505	603	796	563	701	837	1106
28	377	470	561	742	524	652	779	1030
30	353	439	525	694	490	610	729	964

Class III
Average Commercial and Residential Areas
 

API Nominal Pipe Size (In.)	A-36 Steel Plate				A-572-Gr.50 Steel Plate
	1/4'' WALL	5/16'' WALL	3/8'' WALL	1/2'' WALL	1/4'' WALL	5/16'' WALL	3/8'' WALL	1/2'' WALL
4	1756	2143	2512	3200	2439	2976	3488	4444
6	1241	1525	1800	2323	1724	2119	2500	3226
8	973	1200	1421	1846	1351	1667	1974	2564
10	791	978	1161	1516	1099	1359	1613	2105
12	673	833	991	1297	935	1157	1376	1802
14	615	763	908	1190	855	1059	1261	1653
16	541	672	800	1051	752	933	1111	1460
18	483	600	715	941	671	833	993	1307
20	436	542	647	852	606	753	898	1183
22	398	495	590	778	552	687	820	1081
24	365	455	543	716	508	631	754	995
26	338	421	502	664	469	584	698	922
28	314	391	468	618	437	543	649	858
30	294	366	437	578	408	508	607	803

Class IV
Densely Populated Areas
 

API Nominal Pipe Size (In.)	A-36 Steel Plate				A-572-Gr.50 Steel Plate
	1/4'' WALL	5/16'' WALL	3/8'' WALL	1/2'' WALL	1/4'' WALL	5/16'' WALL	3/8'' WALL	1/2'' WALL
4	1405	1714	2009	2560	1951	2381	2791	3556
6	993	1220	1440	1858	1379	1695	2000	2581
8	778	960	1137	1477	1081	1333	1579	2051
10	633	783	929	1213	879	1087	1290	1684
12	538	667	793	1038	748	926	1101	1441
14	492	610	726	952	684	847	1008	1322
16	433	537	640	841	602	746	889	1168
18	387	480	572	753	537	667	795	1046
20	349	434	517	682	485	602	719	947
22	318	396	472	623	442	549	656	865
24	292	364	434	573	406	505	603	796
26	270	336	402	531	376	467	558	737
28	252	313	374	494	349	435	519	687
30	235	293	350	463	327	407	486	643

2. Project Cases :