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Espey WKA400HD

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Item	Description	Variablefor width
1.1	Seal ring
1.2	Tension spring
2	Chamber	A
2.1	Chamberwith O-ring	A
3	Barrier gas chamber	B
3.1	Barrier gas chamberwith O-rings	B
4	Lantern chamber	C
4.1	Lantern chamberwith O-Ring	C
5	Lantern thin	E
5.1	Lantern wide	F
6	End ring	G
7	Flat seal	H
8*	Housing
9*	Lid
11*	Flat seal housing

*On request

Espey WKA400HD

PDF data sheet

Features

Chamber seal (modular design – can be combined in any order), optional with housing and lid
Multi-part seal rings, radially cut
Very small operation gap - low leakage
Dry running
Self-adjusting seal rings
Seal rings bear radial shaft movements
Compensates axial shaft movements
No sealing components mounted on the shaft and hence no additional shaft vibrations
Seal rings running contact-free - sliding faces and machine consume no additional power
Balanced seal ring inside chamber

Advantages

High reliability
Long-term operation time
Maintainability
Segmented seal rings for easy replacement

Operating range

Shaft diameter:
d = 20 ... 340 mm (0.79" … 13.39")
Operating pressure:
p = vacuum ... 75 bar (1,088 PSI) abs.
Operating temperature: t = -120 °C ... +500 °C (-184 °F … +932 °F)
Sliding velocity:
vg = max. 240 m/s (787 ft/s)
Radial play: ±1.0 … 2.0 mm (±0.04" … 0.08")
Axial movement: theoretically unlimited
Recommended wear guard: >58 HRC

Materials

Seal ring: Carbon
Chamber and housing parts: 1.4021, 1.4571, Hastelloy®, Titan, Inconel®, others
Tension spring: 1.4571, Hastelloy®, Titan, Inconel®
Secondardy seal (elastomer): Fluorocarbon rubber (Viton®), Nitrile-butadiene-rubber (Perbunan®), Perfluorocarbon rubber (Kalrez®)
Secondary seal (flat gasket): Statotherm®-HT/HD, KSiL C 4400

Standards and approvals

Recommended applications

Gases
Fumes and exhaust, solids containing, flammable (Atex), acid containing and toxic gases
(Solids containing) steams / liquid mist
Oil mist / penetrating oil
Water
Oil and gas industry
Refining technology
Chemical industry
Petrochemical industry
Pulp and paper industry
Metal production and processing
Power plant technology
CO2 transportation and storage
Integral-gear compressors (one or multi-stage)
Screw and chiller compressors
Steam turbines
Air regulating devices

Similar products

Espey WDB200

Torque transmission depending on application with set screw or as shrink fit
Metallic coating (FMP 84) basically for applications without high oxidation
Ceramic coating (EMP 98) basically for applications with high oxidation
Design one- or two-piece

Back to overview

d_h6	DH7	d₁	A	B	C	E	F	G	H
20	60	22	10	21	16	11	-	5	1
25	65	27	10	21	16	11	-	5	1
30	70	32	10	21	16	11	-	5	1
35	75	37	10	21	16	11	-	5	1
40	80	42	10	21	16	11	-	5	1
45	90	47	10	21	16	11	-	5	1
50	100	52	10	21	16	11	17	5	1
55	105	57	10	21	16	11	17	5	1
60	110	62	10	21	16	11	17	5	1
65	115	67	10	21	16	11	17	5	1
70	120	72	10	21	16	11	17	5	1
75	125	77	10	21	16	11	17	5	1
80	130	82	10	21	16	11	17	5	1
85	135	87	10	21	16	11	17	5	1
90	140	92	10	21	16	11	17	5	1
95	145	97	10	21	16	11	17	5	1
100	150	102	10	21	16	11	17	5	1
105	155	107	10	21	16	11	17	5	1
110	160	112	10	21	16	11	17	5	1
115	165	117	10	21	16	11	17	5	1
120	190	123	12	27	21	15	20	8	2
130	200	133	12	27	21	15	20	8	2
140	210	143	12	27	21	15	20	8	2
150	220	153	12	27	21	15	20	8	2
160	230	163	12	27	21	15	20	8	2
170	240	173	12	27	21	15	20	8	2
180	250	183	12	27	21	15	20	8	2
190	260	193	12	27	21	15	20	8	2
200	270	203	12	27	21	15	20	8	2
210	280	213	12	27	21	15	20	8	2
220	290	223	12	27	21	15	20	8	2
230	300	233	12	27	21	15	20	8	2
240	310	243	12	27	21	15	20	8	2
250	320	253	12	27	21	15	20	8	2
260	330	263	12	27	21	15	20	8	2
270	340	273	12	27	21	15	20	8	2
280	350	283	12	27	21	15	20	8	2
290	360	293	12	27	21	15	20	8	2
300	370	303	12	27	21	15	20	8	2

Dimensions in mm. Special sizes on request.

d_h6	DH7	d₁	A	B	C	E	F	G	H
20	60	22	10	21	16	11	-	5	1
25	65	27	10	21	16	11	-	5	1
30	70	32	10	21	16	11	-	5	1
35	75	37	10	21	16	11	-	5	1
40	80	42	10	21	16	11	-	5	1
45	90	47	10	21	16	11	-	5	1
50	100	52	10	21	16	11	17	5	1
55	105	57	10	21	16	11	17	5	1
60	110	62	10	21	16	11	17	5	1
65	115	67	10	21	16	11	17	5	1
70	120	72	10	21	16	11	17	5	1
75	125	77	10	21	16	11	17	5	1
80	130	82	10	21	16	11	17	5	1
85	135	87	10	21	16	11	17	5	1
90	140	92	10	21	16	11	17	5	1
95	145	97	10	21	16	11	17	5	1
100	150	102	10	21	16	11	17	5	1
105	155	107	10	21	16	11	17	5	1
110	160	112	10	21	16	11	17	5	1
115	165	117	10	21	16	11	17	5	1
120	190	123	12	27	21	15	20	8	2
130	200	133	12	27	21	15	20	8	2
140	210	143	12	27	21	15	20	8	2
150	220	153	12	27	21	15	20	8	2
160	230	163	12	27	21	15	20	8	2
170	240	173	12	27	21	15	20	8	2
180	250	183	12	27	21	15	20	8	2
190	260	193	12	27	21	15	20	8	2
200	270	203	12	27	21	15	20	8	2
210	280	213	12	27	21	15	20	8	2
220	290	223	12	27	21	15	20	8	2
230	300	233	12	27	21	15	20	8	2
240	310	243	12	27	21	15	20	8	2
250	320	253	12	27	21	15	20	8	2
260	330	263	12	27	21	15	20	8	2
270	340	273	12	27	21	15	20	8	2
280	350	283	12	27	21	15	20	8	2
290	360	293	12	27	21	15	20	8	2
300	370	303	12	27	21	15	20	8	2

d_h6	DH7	d₁	A	B	C	E	F	G	H
20	60	22	10	21	16	11	-	5	1
25	65	27	10	21	16	11	-	5	1
30	70	32	10	21	16	11	-	5	1
35	75	37	10	21	16	11	-	5	1
40	80	42	10	21	16	11	-	5	1
45	90	47	10	21	16	11	-	5	1
50	100	52	10	21	16	11	17	5	1
55	105	57	10	21	16	11	17	5	1
60	110	62	10	21	16	11	17	5	1
65	115	67	10	21	16	11	17	5	1
70	120	72	10	21	16	11	17	5	1
75	125	77	10	21	16	11	17	5	1
80	130	82	10	21	16	11	17	5	1
85	135	87	10	21	16	11	17	5	1
90	140	92	10	21	16	11	17	5	1
95	145	97	10	21	16	11	17	5	1
100	150	102	10	21	16	11	17	5	1
105	155	107	10	21	16	11	17	5	1
110	160	112	10	21	16	11	17	5	1
115	165	117	10	21	16	11	17	5	1
120	190	123	12	27	21	15	20	8	2
130	200	133	12	27	21	15	20	8	2
140	210	143	12	27	21	15	20	8	2
150	220	153	12	27	21	15	20	8	2
160	230	163	12	27	21	15	20	8	2
170	240	173	12	27	21	15	20	8	2
180	250	183	12	27	21	15	20	8	2
190	260	193	12	27	21	15	20	8	2
200	270	203	12	27	21	15	20	8	2
210	280	213	12	27	21	15	20	8	2
220	290	223	12	27	21	15	20	8	2
230	300	233	12	27	21	15	20	8	2
240	310	243	12	27	21	15	20	8	2
250	320	253	12	27	21	15	20	8	2
260	330	263	12	27	21	15	20	8	2
270	340	273	12	27	21	15	20	8	2
280	350	283	12	27	21	15	20	8	2
290	360	293	12	27	21	15	20	8	2
300	370	303	12	27	21	15	20	8	2

d_h6	DH7	d₁	A	B	C	E	F	G	H
20	60	22	10	21	16	11	-	5	1
25	65	27	10	21	16	11	-	5	1
30	70	32	10	21	16	11	-	5	1
35	75	37	10	21	16	11	-	5	1
40	80	42	10	21	16	11	-	5	1
45	90	47	10	21	16	11	-	5	1
50	100	52	10	21	16	11	17	5	1
55	105	57	10	21	16	11	17	5	1
60	110	62	10	21	16	11	17	5	1
65	115	67	10	21	16	11	17	5	1
70	120	72	10	21	16	11	17	5	1
75	125	77	10	21	16	11	17	5	1
80	130	82	10	21	16	11	17	5	1
85	135	87	10	21	16	11	17	5	1
90	140	92	10	21	16	11	17	5	1
95	145	97	10	21	16	11	17	5	1
100	150	102	10	21	16	11	17	5	1
105	155	107	10	21	16	11	17	5	1
110	160	112	10	21	16	11	17	5	1
115	165	117	10	21	16	11	17	5	1
120	190	123	12	27	21	15	20	8	2
130	200	133	12	27	21	15	20	8	2
140	210	143	12	27	21	15	20	8	2
150	220	153	12	27	21	15	20	8	2
160	230	163	12	27	21	15	20	8	2
170	240	173	12	27	21	15	20	8	2
180	250	183	12	27	21	15	20	8	2
190	260	193	12	27	21	15	20	8	2
200	270	203	12	27	21	15	20	8	2
210	280	213	12	27	21	15	20	8	2
220	290	223	12	27	21	15	20	8	2
230	300	233	12	27	21	15	20	8	2
240	310	243	12	27	21	15	20	8	2
250	320	253	12	27	21	15	20	8	2
260	330	263	12	27	21	15	20	8	2
270	340	273	12	27	21	15	20	8	2
280	350	283	12	27	21	15	20	8	2
290	360	293	12	27	21	15	20	8	2
300	370	303	12	27	21	15	20	8	2