PT01 - Piston T-Seal | Interstate Seal Company

The PT01 Piston T-Seal's compact design provides improved stability and extrusion resistance in dynamic fluid sealing applications. The flange of the T-seal forms a tight seal in the gland and supports the anti-extrusion back-up rings. The PT01 strength lies in eliminating the spiral or twisting failure that can occur when o-rings are used against a dynamic surface.


B-Bore Ø (inch)	G-Groove Ø (inch)	L-Length -0 Standard Groove (inch)	L-Length -1 One Back-up Groove (inch)	L-Length -2 Two Back-up Groove (inch)	P-Piston Ø (inch)	O-ring Dash Number
+.002/-.000	+.000/-.002	+.005/-.000	+.005/-.000	+.005/-.000	+.000/-.001
0.374	0.198	0.140	0.171	0.238	0.372	106
0.437	0.261	0.140	0.171	0.238	0.435	108
0.499	0.323	0.140	0.171	0.238	0.497	109
0.562	0.320	0.187	0.208	0.275	0.559	203
0.625	0.383	0.187	0.208	0.275	0.662	204
0.687	0.445	0.187	0.208	0.275	0.684	205
0.750	0.508	0.187	0.208	0.275	0.747	206
0.812	0.570	0.187	0.208	0.275	0.809	207
0.875	0.633	0.187	0.208	0.275	0.872	208
0.937	0.695	0.187	0.208	0.275	0.934	209
1.000	0.758	0.187	0.208	0.275	0.997	210
1.062	0.820	0.187	0.208	0.275	1.059	211
1.125	0.833	0.187	0.208	0.275	1.122	212
1.187	0.945	0.187	0.208	0.275	1.184	213
1.250	1.008	0.187	0.208	0.275	1.247	214
1.312	1.070	0.187	0.208	0.275	1.309	215
1.375	1.133	0.187	0.208	0.275	1.372	216
1.437	1.195	0.187	0.208	0.275	1.434	217
1.500	1.258	0.187	0.208	0.275	1.497	218
1.562	1.320	0.187	0.208	0.275	1.559	219
1.625	1.383	0.187	0.208	0.275	1.622	220
1.750	1.508	0.187	0.208	0.275	1.747	222
1.875	1.505	0.281	0.311	0.410	1.872	325
2.000	1.630	0.281	0.311	0.410	1.997	326
2.125	1.755	0.281	0.311	0.410	2.122	327
2.250	1.880	0.281	0.311	0.410	2.247	328
2.375	2.005	0.281	0.311	0.410	2.372	329
2.500	2.130	0.281	0.311	0.410	2.497	330
2.625	2.255	0.281	0.311	0.410	2.622	331
2.750	2.380	0.281	0.311	0.410	2.747	332
2.875	2.505	0.281	0.311	0.410	2.872	333
3.000	2.630	0.281	0.311	0.410	2.997	334
3.125	2.755	0.281	0.311	0.410	3.122	335
3.250	2.880	0.281	0.311	0.410	3.247	336
3.500	3.130	0.281	0.311	0.410	3.497	338
3.625	3.255	0.281	0.311	0.410	3.622	339
3.750	3.380	0.281	0.311	0.410	3.747	340
3.875	3.505	0.281	0.311	0.410	3.872	341
4.000	3.630	0.281	0.311	0.410	3.997	342
4.125	3.755	0.281	0.311	0.410	4.122	343
4.250	3.880	0.281	0.311	0.410	4.247	344
4.375	4.005	0.281	0.311	0.410	4.372	345
4.500	4.130	0.281	0.311	0.410	4.497	346
4.625	4.255	0.281	0.311	0.410	4.622	347
4.750	4.380	0.281	0.311	0.410	4.747	348
4.875	4.505	0.281	0.311	0.410	4.872	349
5.002	4.630	0.281	0.311	0.410	4.997	350
5.127	4.653	0.375	0.408	0.538	5.123	426
5.252	4.778	0.375	0.408	0.538	5.248	427
5.377	4.903	0.375	0.408	0.538	5.373	428
5.502	5.028	0.375	0.408	0.538	5.498	429
5.627	5.153	0.375	0.408	0.538	5.623	430
5.752	5.278	0.375	0.408	0.538	5.748	431
5.877	5.403	0.375	0.408	0.538	5.873	432
6.002	5.528	0.375	0.408	0.538	5.998	433
6.127	5.653	0.375	0.408	0.538	6.123	434
6.252	5.778	0.375	0.408	0.538	6.248	435
6.502	6.028	0.375	0.408	0.538	6.498	437
6.752	6.278	0.375	0.408	0.538	6.748	438
7.002	6.528	0.375	0.408	0.538	6.998	439
7.252	6.778	0.375	0.408	0.538	7.248	440
7.502	7.028	0.375	0.408	0.538	7.498	441
7.752	7.278	0.375	0.408	0.538	7.748	442
8.002	7.528	0.375	0.408	0.538	7.998	443
8.252	7.778	0.375	0.408	0.538	8.248	444
8.502	8.028	0.375	0.408	0.538	8.498	445
9.002	8.528	0.375	0.408	0.538	8.998	446
9.502	9.028	0.375	0.408	0.538	9.498	447
10.002	9.528	0.375	0.408	0.538	9.998	448
10.502	10.028	0.375	0.408	0.538	10.498	449
11.002	10.528	0.375	0.408	0.538	10.998	450
11.502	11.028	0.375	0.408	0.538	11.498	451
12.002	11.528	0.375	0.408	0.538	11.998	452
14.002	13.528	0.375	0.408	0.538	13.998	456
15.502	15.028	0.375	0.408	0.538	15.498	459
16.002	15.528	0.375	0.408	0.538	15.998	460
17.002	16.528	0.375	0.408	0.538	16.998	462
17.502	17.028	0.375	0.408	0.538	17.498	463
24.002	23.528	0.375	0.408	0.538	23.998	N/A

PT01 - Piston T-Seal

PT01 LARGE.png

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