Hecker Aegira

Hecker Aegira®
HN 435 S

Mechanical seal HN 435S according to DIN 24960 (l1k)

Field of application:
- chemical industry
- food processing industry
- environmental technology
- waste water managment
- raffinaries
- power plants
- building machinery industry
- paper processing industry

application limits:
- d1= 18 ... 100 mm
- p= 25 bar
- T= -20 degree C to +200 degree C
- vg=20 m/s
- p•v= 200 bar m/s

- for common stuffing boxes on centrifugal pumps
- balanced
- stationary seal face compensates inclination of pump cover and shaft misalignement by unique adjustment- no damaging of the sliding surface of, the shifting o-ring
- independent on direction of rotation
- no contact between springs and product
- low rotating mass
- great clearance for leakage-caused deposits, thus allowing free axial motion

operative range HN 435 S

The mechanical seal HN 435S is a stationary seal type desgined for applications according to DIN 24960 and having an installation length of l_1k. Thus to the stationary arrangement of the parts containing the springs, the secondary seals are not subject to strain by tumbling motions caused by inclination or misalignement. The springs do not come in contact with the product avoiding to peg or to jam. Thus to this construction arrangement a greater clearance for leakage-caused deposits is achieved as on standard seals and allowing a free axial motion of the seal face. The slaving of the stationary ring is achieve by threaded pins. The torque is transmit by these pins to the stationary ring. The smooth outside of the seal face and the stationary ring avoids an adhereing of solid matters and reduces the whirling of the seals inside the medium. The small sliding surfaces of the seal face and the stationary ring guarantee a low energy consumption, a low frictional heat and as a result a lower wear of the sliding materials. Empoying this seal a higher service life, a lower energy consumption and longer maintenance rate can be acheived.

The seal can be employeed for pressures up to 25 bar, for temperatures up to 200°C and for sliding velocities up to 20 m/s with a diameter range between 18 mm and 100 mm and is designed to be used inside pumps, mixers and compressors in the chemical -, paper - and chemical pulp industry as well as in the food processing industry and waste water management.

construction

Pos

Discription

Materials

1

Seal face

SiC (Q1), antimon or resin inpregnated carbon (A, B), tungsten carbides (U1)

2

Stationary ring

SiC (Q1), tungsten carbides (U1), cr-cast (S)

3

O-Ring

FPM (V), EPDM (E), NBR (P), FFKM (K)

4

O-Ring

FPM (V), EPDM (E), NBR (P), FFKM (K)

5

Spring

1.4571 (G)

7

Drive collar

1.4571 (G)

8

Threaded pin

1.4571 (G)

11

Seal face housing

1.4462 (G1)

12

Stationary ring housing

1.4462 (G1)

16

O-Ring

FPM (V), EPDM (E), NBR (P), FFKM (K)

17

Pin

1.4571 (G)

DIMENSION CHART
(in mm)

Nenn Æ	d₁	d₃	d₆	d₇	d₈	d₉	l_1k	l₅	l₆
018	18	32	27	33	3	M4	37,5	2	5
020	20	34	29	35	3	M4	37,5	2	5
022	22	36	31	37	3	M4	37,5	2	5
024	24	38	33	39	3	M5	40	2	5
025	25	39	34	40	3	M5	40	2	5
028	28	42	37	43	3	M5	42,5	2	5
030	30	44	39	45	3	M5	42,5	2	5
032	32	47	42	48	3	M5	42,5	2	5
033	33	47	42	48	42,5	2	5
035	35	49	44	50	3	M5	42,5	2	5
038	38	54	49	56	4	M5	45	2	6
040	40	56	51	58	4	M5	45	2	6
043	43	59	54	61	4	M5	45	2	6
045	45	61	56	63	4	M5	45	2	6
048	48	64	59	66	4	M5	45	2	6
050	50	66	62	70	4	M5	47,5	2,5	6
053	53	69	65	73	4	M5	47,5	2,5	6
055	55	71	67	75	4	M5	47,5	2,5	6
058	58	78	70	78	4	M6	52,5	2,5	6
060	60	80	72	80	4	M6	52,5	2,5	6
063	63	83	75	83	4	M6	52,5	2,5	6
065	65	85	77	85	4	M6	52,5	2,5	6
070	70	90	83	92	4	M6	60	2,5	7
075	75	99	88	97	4	M8	60	2,5	7
080	80	104	95	105	4	M8	60	3	7
085	85	109	100	110	4	M8	60		7
090	90	114	105	115	4	M8	65	3	7
095	95	119	110	120	4	M8	65	3	7
100	100	124	115	125	4	M8	65	3	7