R18 (type 21)

R18 (type 21) Rubber Bellow Seal

Manufacturer: Atlas Engineering group

SKU: R18

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R18 (type 21) Rubber Bellow Seal

Analog: John Crane Type 21 Rubber Bellow Seal

Performance Capabilities
Temperature: -20C to 150C dependent on the elastomer
Pressure: Up to 8 bar
Speed: Up to 10 m/s
Sizes: 1/2" to 3"

Materials Combination
Face: Carbon, SiC, TC
Seat: Ceramic, SiC, TC
O-rings: NBR, EPDM, VITON etc.
Spring: SS304, SS316
Metal parts: SS304, SS316

	d	D	D1	L1	L2
"0.5-R15	12.7	23.88	25.4	7.92	20.82
"0.625-R15	15.875	26.7	31.75	10.29	22.43
"0.75-R15	19.05	31.09	34.93	10.29	22.43
"R15-0.875	22.225	33.4	38.1	10.29	24
"R15-1	25.4	43.18	41.28	11.1	25.6
"125.R15-1	28.575	46.28	44.45	11.1	27.17
"R15-1.25	31.75	49.4	47.63	11.1	27.17
"1.375-R15	34.925	52.58	50.8	11.1	28.78
"1.5-R15	38.1	55.8	53.98	11.1	28.78
"1.625-R15	41.275	62.2	60.33	12.7	35.15
"1.75-R15	44.45	66	63.5	12.7	35.15
"R15-1.875	47.625	66.6	66.68	12.7	38.3
"2-R15	50.8	73	69.85	12.7	38.3
R15-2.125"	53.9	73.3	76.2	14.27	43.05
R15-2.25"	57.1	78.41	79.38	14.27	43.05
R15-2.375"	60.3	82	82.55	14.27	46.25
R15-2.5"	63.5	84.87	85.73	14.27	46.25
R15-2.625"	66.6	88.4	85.73	15.9	49.4
R15-2.75"	69	92.58	88.9	15.9	49.4
R15-2.875"	73	94.85	95.25	15.9	52.57
R15-3"	76.2	101.9	98.43	15.9	52.57

Product tags

r18 - type john crane 21 (1)

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