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EM300

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Item	Description
1.1	Seal face
1.2	Adapter
1.3	Spring
1.4	Thrust ring
1.5	O-Ring
1.6	Retaining ring
1.7	O-Ring
2	Seat
3	Drive collar
4	O-Ring
5	O-Ring
6	Set screw

EM300

PDF data sheet

Features

Balanced
Independent of direction of rotation
Stationary multiple springs
API682 arrangement 2 containment seal

Advantages

Dry contact secondary seal
Prevention of hazardous emissions
Can be used as a secondary seal of tandem seal in liquid applications

Operating range

Pressure: p = 2 bar (29 PSI) normal operation,
max. 60 bar (870 PSI)
Temperature:
t = -20 °C ... +200 °C (-4 °F ... +392 °F)
Sliding velocity: vg = 25 m/s (82 ft/s)

Materials

Seal face: Special carbon
Seat: Silicon carbide (Q1, Q2)
Secondary seals: FKM (V)
Metal parts: CrNiMo steel (G)

Standards and approvals

API 682 / ISO 21049

Recommended applications

Chemical industry
Refining technology

Product variants

https://media-assets.eagleburgmann.com/image/108134910297/image_17lrk16e2p6rde10qib6l0bl33/-FWEBP

Configuration example
acc. to API 682 (2CW-CS)

Similar products

CGSH-K

For stepped shafts
Balanced
Rotating spring
Single or double seal available
Standard version with U-grooves, V-grooves optional (dependent of direction of rotation)
Gas-lubricated
Does not open in the event of buffer pressure failure, self closing at pressure reversal

GSO-DN

Seat rotating
Stationary springs
Double seal
Balanced
Standard version with V-grooves, U-grooves optional (independent of direction of rotation)
Gas-lubricated

HRGS-D

Double seal
Balanced
Standard version with U-grooves (bi-directional)
Gas-lubricated

Back to overview

d _max.	d₁	d₂	d₃	l	l₁	l₂
20	50	40	46	56	27	29
25	54	46	52	56	27	29
30	60	51	57	56	27	29
35	64	56	62	56	27	29
40	72	63	69	62	31	31
45	76	68	74	62	31	31
50	85	76	82	66	33	33
55	90	82	88	66	33	33
60	100	90	96	66	33	33
65	105	93	99	66	33	33
70	110	99	105	66	33	33
75	115	104	110	66	33	33
80	120	111	117	68	35	33
85	127	117	123	68	35	33
90	132	120	126	68	35	33
95	140	129	135	68	35	33
100	145	132	138	68	35	33

Dimensions in millimeter

d _max.	d₁	d₂	d₃	l	l₁	l₂
20	50	40	46	56	27	29
25	54	46	52	56	27	29
30	60	51	57	56	27	29
35	64	56	62	56	27	29
40	72	63	69	62	31	31
45	76	68	74	62	31	31
50	85	76	82	66	33	33
55	90	82	88	66	33	33
60	100	90	96	66	33	33
65	105	93	99	66	33	33
70	110	99	105	66	33	33
75	115	104	110	66	33	33
80	120	111	117	68	35	33
85	127	117	123	68	35	33
90	132	120	126	68	35	33
95	140	129	135	68	35	33
100	145	132	138	68	35	33

d _max.	d₁	d₂	d₃	l	l₁	l₂
20	50	40	46	56	27	29
25	54	46	52	56	27	29
30	60	51	57	56	27	29
35	64	56	62	56	27	29
40	72	63	69	62	31	31
45	76	68	74	62	31	31
50	85	76	82	66	33	33
55	90	82	88	66	33	33
60	100	90	96	66	33	33
65	105	93	99	66	33	33
70	110	99	105	66	33	33
75	115	104	110	66	33	33
80	120	111	117	68	35	33
85	127	117	123	68	35	33
90	132	120	126	68	35	33
95	140	129	135	68	35	33
100	145	132	138	68	35	33

d _max.	d₁	d₂	d₃	l	l₁	l₂
20	50	40	46	56	27	29
25	54	46	52	56	27	29
30	60	51	57	56	27	29
35	64	56	62	56	27	29
40	72	63	69	62	31	31
45	76	68	74	62	31	31
50	85	76	82	66	33	33
55	90	82	88	66	33	33
60	100	90	96	66	33	33
65	105	93	99	66	33	33
70	110	99	105	66	33	33
75	115	104	110	66	33	33
80	120	111	117	68	35	33
85	127	117	123	68	35	33
90	132	120	126	68	35	33
95	140	129	135	68	35	33
100	145	132	138	68	35	33