HexaTech Multi Spring

The Hexatech Multi-Spring Mechanical Seal is a heavy-duty, compact component seal engineered for high-pressure and high-velocity rotating equipment. Featuring a multiple small-spring configuration housed within a robust drive collar, it delivers exceptionally uniform face loading across the entire seal interface, minimizing distortion and extending service life under demanding industrial conditions.

Key Specifications & Features

Multiple Coil Springs
Evenly distributed peripheral springs ensure uniform face pressure, high mechanical stability, and smooth operation at elevated speeds.
Compact Axial Envelope
Short installation and operating length (ROTARY LENGTH + ST.L) makes it ideal for tight, standard DIN/ISO stuffing boxes.
Positive Drive Mechanism
Set-screw drive collar locks firmly onto the shaft, ensuring non-slip torque transmission without shaft damage.
Bidirectional Operation
Unaffected by the direction of shaft rotation, simplifying installation and stock handling.

SIZE (INCHES)	SIZE (MM)	ROTARY OD	ST OD	ROTARY LENGTH	ST “L”
0.5	12.7	26.19	25.6	20.62	7.92
0.625	15.8	30.15	31.95	19.05	10.31
0.75	19	33.32	35.12	22.23	10.31
0.875	22.2	36.5	38.3	23.8	10.31
1	25.4	39.67	41.48	25.4	11.1
1.125	28.5	42.85	44.65	26.97	11.1
1.25	31.7	47.63	47.83	26.97	11.1
1.375	34.9	50.8	51	28.58	11.1
1.5	38.1	53.98	54.18	28.58	11.1
1.625	41.2	60.33	60.53	34.93	12.7
1.75	44.4	63.5	63.7	34.93	12.7
1.875	47.6	66.68	66.88	34.93	12.7
2	50.8	69.85	70.05	34.93	12.7
2.125	53.9	76.2	76.4	42.85	14.27
2.25	57.1	79.38	79.58	42.85	14.27
2.375	60.3	82.55	82.75	42.85	14.27
2.5	63.5	85.73	85.93	42.85	14.27
2.625	66.6	88.9	85.93	42.85	15.88
2.75	69.8	92.08	89.1	42.85	15.88
2.875	73	95.25	95.45	42.85	15.88
3	76.2	96.82	98.63	42.85	15.88
3.125	79.3	100	101.8	42.85	19.84
3.25	82.5	104.78	104.98	42.85	19.84
3.375	85.7	107.95	108.15	42.85	19.84
2.5	88.9	111.13	111.33	42.85	19.84
3.625	92	114.3	114.5	42.85	19.84
3.75	95.2	117.48	117.68	42.85	19.84
3.875	98.4	120.65	120.85	42.85	19.84
4	101.6	123.83	124.03	42.85	19.84

Technical Specifications:

PROPERTY / PARAMETER	DETAILS
Structure Description
Equivalent Model	Equivalent to AES M01S, John Crane Type 8-1
Design Type	Multiple spring design, Unbalanced seal
Operating Limits
Temperature	-40-160°C
Speed	25m/s
Pressure	22bar
Standard Size	0.5″-4.0″
Material
Seal ring	Car, Sic, Ssic, Ceramic, TC
Secondary seal	NBR, Viton, EPDM etc.
Spring and metal parts	304, 316, HAST.C

HEXATECH TRADING CO.

Hexatech Trading Co. designs and manufactures high-performance mechanical seals and related products for diverse heavy and process industries worldwide.