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Mechanical Seal TB21/21T replace John Crane type 21 seal, Roten 21A seal

Categories	Parallel Spring Diaphragm Mechanical Seal
Brand	TOPBON Mechanical Seal Manufacturer
Model	TB21/21T
Temperature	-20℃-120℃
Speed	≦15m/s
Pressure	≦1.0MPA
Stationary Seat	TBT11
Rotary Ring Material	CAR/SIC/TC
Stationary Ring Material	CER/SIC/TC
O-Ring Material	VIT/NBR/EPDM
Spring & Metal Parts	SUS304/SUS316
Application	Clean Water，Sewage Water，Oil
FOB port	ningbo
Terms of Payment	T/T
Update Time	Dec 30,2024

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Detail Information

Product Introduction

Product Size

Product Details

Product Model

TB21/21T mechanical seal

Replacement to:

John Crane 21, Flowserve 110,Sealol 43CU short, LIDERING LRB01, Hermetica M112K.5SP, Burgmann MG921 / D1-G55, AESSEL P04T, AESSEL P04, Vulcan 11, US SEAL C, Roten 21A,

Operational Conditions:

Temperature: -20℃ to +120℃

Pressure: ≤1.0MPa

Speed: ≤15m/s

Materials:

Stationary Ring: Silicon Carbide, TC, Carbon

Rotary Ring: Silicon Carbide, Ceramic, TC

Secondary Seal: NBR, EPDM, Viton

Spring and Metal Parts: SUS304,SUS316

Applications:

Clean water,

sewage water

oil and other moderately corrosive fluids

Stationary Seat:

Standard: TBT11

Alternative:

Product details

SIZE

Size/ Inch	d	D3	D31	D1	L1	L2
0.500	12.7	24.0	22.80	25.40	20.62	7.95
0.625	15.8	26.7	26.70	31.75	22.23	10.31
0.750	19.1	31.2	30.40	34.93	22.23	10.31
0.875	22.2	33.5	33.40	38.10	23.80	10.31
1.000	25.4	43.2	39.30	41.28	25.40	11.10
1.125	28.6	46.5	42.00	44.45	26.97	11.10
1.250	31.7	49.5	45.80	47.63	26.97	11.10
1.375	34.9	52.7	49.30	50.80	28.58	11.10
1.500	38.1	56.0	52.80	53.98	28.58	11.10
1.625	41.2	62.2	55.50	60.33	34.93	12.70
1.750	44.4	66.0	61.00	63.50	34.93	12.70
1.875	47.6	66.0	64.00	66.68	38.10	12.70
2.000	50.8	73.0	66.00	69.85	38.10	12.70
2.125	53.9	73.5	71.50	76.20	42.85	14.27
2.250	57.1	79.6	79.60	79.38	42.85	14.27
2.375	60.3	82.0	79.60	82.55	46.05	14.27
2.500	63.5	85.0	81.50	85.73	46.05	14.27
2.625	66.6	88.5	84.60	85.73	49.20	15.88
2.750	69.8	92.7	90.00	88.90	49.20	15.88
3.000	76.2	102.0	96.80	98.40	52.37	15.88

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