Flowserve Seal Type 21

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Materials:
Rotary Ring: Carbon/Silicon Carbide/Tungsten Carbide
Stationary Ring: Ceramic/Silicon Carbide/Tungsten Carbide
Secondary Seals: NBR/VITON/EPDM
Spring & Metal Parts: SS304/SS316

Operating Conditions:
Temperatures: -40℃ to 205℃
-40℉ to 400℉
Pressures: To 10 bar g/150 psig
Speeds: To 13 m/s/2500 fpm

Equivalent:
PAC SEAL Type 21
US SEAL Type C

Seal Size (inches)	d	D3	D4	L3	D7	L6	L8
0.5	12.7	23.81	26.99	20.64	27.8	7.1	8.7
0.625	15.88	26.99	33.34	22.23	30.95	8.7	10.3
0.75	19.05	30.16	36.51	22.23	34.15	8.7	10.3
0.875	22.23	33.34	36.69	23.81	37.3	8.7	10.3
1	25.4	42.85	49.2	25.4	40.5	8.7	10.3
1.125	28.58	46.05	52.37	26.97	47.65	10.3	11.9
1.25	31.75	49.2	55.55	26.97	50.8	10.3	11.9
1.375	34.93	52.37	58.72	28.58	54	10.3	11.9
1.5	38.1	55.55	61.9	28.58	57.15	10.3	11.9
1.625	41.28	63.5	69.85	34.93	60.35	10.3	11.9
1.75	44.45	66.68	73.03	34.93	63.5	10.3	11.9
1.875	47.63	69.85	76.2	38.1	66.7	10.3	11.9
2	50.8	73.03	80.95	38.1	69.85	11.9	13.5
2.125	53.98	76.2	84.12	42.85	73.05	11.9	13.5
2.25	57.15	79.38	87.3	42.85	76.2	11.9	13.5
2.375	60.33	82.55	90.47	46.02	79.4	11.9	13.5
2.5	63.5	84.91	93.65	46.02	82.55	11.9	13.5
2.625	66.68	88.9	101.6	49.2	92.1	14.3	15.9
2.75	69.85	95.25	104.78	49.2	95.25	14.3	15.9
2.875	73.03	98.43	111.13	52.37	98.45	14.3	15.9
3	76.2	101.6	114.3	52.37	101.6	14.3	15.9
3.125	79.38	104.78	120.65	55.55	111.15	18.3	19.9
3.25	82.55	107.95	123.83	55.55	114.3	18.3	19.9
3.375	85.73	114.3	133.35	55.55	117.5	18.3	19.9
3.5	88.9	117.48	136.53	55.55	120.65	18.3	19.9
3.625	92.08	120.65	139.7	58.72	123.85	18.3	19.9
3.75	95.25	123.83	142.88	58.72	127	18.3	19.9

Flowserve Seal Type 16 |