Teflon PTFE series
Expanded PTFE sealant joint
PTFE Tubing(Fine power)
PTFE Diaphragm
PTFE o-ring
PTFE envelope non-asbestos
PTFE sheet/rod
FEP envelope Viton O-ring
PFA Tubing
Gland Packing series
PTFE packing
PTFE Graphite packing
Carbon fiber packing
Flexible graphite packing
Aramid fiber packing
Acrylic Nitrile (PAN) packing
PTFE Muti-Filament packing
Asbestos packing with PTFE
Gasket series
Spiral wound gaskets
Ring joint gaskets
Lens gaskets
Corrugated gaskets
Camprofile gaskets
Double jacket graphite gasket
Plastic products
Die formed graphite ring
Sealing sheet series
Expanded Graphite sheet
Non-asbestos sheet
Tanged/foil graphite sheet
Rubber (EPDM,NBR) sheet
Fiber glass cloth
Ceramic fiber cloth
Cork sheet
Wool felt sheet
Tower packing
Pall ring
Tellerette packing
Muti-surface hollow ball
PP ball
Rashing ring
Plastic ripple padding
Orifice corrugate packing
Wire mesh corrugate packing
Rubber series
Viton rubber sleeves
EPDM Extrusion
Neoprene Mouldings
Silicone rubber sheet
Nature rubber grommets
Nitrile Rubber oil seal
Aflas O ring
Fluorosilicone Rubber
 
WELCOME to Cixi Dongfeng Sealing&packing web site.
Here you will find information on many different types of sealing gaskets, packings and materials which are in common used in oil chemical, metallurgy, electric power, ship-building, papoer making and fertilizer industries today.
Please feel free to send us comments, request technical information or email us.
Your comments and feedback are important to us.
  You are in : Home>>Products>>Gasket series>>Spiral wound gaskets
   
 
Spiral Wound Gaskets
 
     

1. Structure
The wound style gasket consists of "V-shape"(or"W-shape")metal tape and nonmetal tape,which are overlapped each other and wound continuously.To fasten the metal tape,both its start point and end point are tack welded.

2.Performance and Features
1. Wide range of applicable working condition,high temperature and high pressure resistance,applicable to super low temperature and vacuum condition.Chemical resistant gasket is available under various medium,through change of composition of gasket.
2.Strong stress compensation,stable and reliable sealing performance even under frequent pressure fluctuation condition.
3.Perfect sealing performance.
4.Normal requirement of flange surface finishing which contact with gasket.
5.Easy installation and low pre-tightening stress of gasket.

3.Kinds of Gasket
1.A.Wound style gasket consists of four type:basic type,with inner ring,with outer ring,and with inner and outer rings. B.Heat exchanger wound style gasket:basic type and with inner and outer rings.
2. Normally matrial used:
A.Steel tape:08F,0Cr18Ni9(304),0Cr18Ni9Ti,1Cr18Ni9Ti(321),0Cr17Ni12,M02(316),00Cr17Ni14M02(316L).
B.(Cold roll)steel plate for inner and outer ring:Outer ring:mild steel,0Cr13 and 0Cr18Ni9
Inner ring:same as steel tape,special order is a available through negotiation.
C.Nonmetal tape:flexible graphite,special made asbestos,teflon and non-asbestos paper.

4.Scope of Application
1. Working temperature:-196 -700(not higher than 600 in oxidic medium)
2.Working pressure:25MPa
3.Gasket coefficient:m=2.5-4
4.Min.pre-tightening specific pressure:y-68MPa
5.Max.machinable size:-2800mm

 
 

Standard type

Gasket Thickness:4.5mm


Standard type

Gasket Thickness:4.5mm


Standard type

Gasket Thickness:4.5mm


Standard type

Gasket Thickness:4.5mm


     
 
150
300
400
600
900
a1500
2500
D2
D3
D4
D2
D3
D4
D2
D3
D4
D2
D3
D4
D2
D3
D4
D2
D3
D4
D2
D3
D4
1/2B
19.0
31.8
47.8
19.0
31.8
54.1
19.0
31.8
54.1
19.0
31.8
54.1
19.0
31.8
63.5
19.0
31.8
63.5
19.0
31.8
69.8
3/4
25.4
39.6
57.2
25.4
39.6
66.8
25.4
39.6
66.8
25.4
39.6
66.8
25.4
39.6
69.8
25.4
39.6
69.8
25.4
39.6
76.2
1
31.8
47.8
66.8
31.8
47.8
73.2
31.8
47.8
73.2
31.8
47.8
73.2
31.8
47.8
79.5
31.8
47.8
79.5
31.8
47.8
85.8
11/4
47.8
60.4
76.2
47.8
60.4
82.6
47.8
60.4
82.6
47.8
60.4
82.6
39.6
60.4
88.9
39.6
60.4
88.9
39.6
60.4
104.9
11/2
54.1
69.8
85.8
54.1
69.8
95.2
54.1
69.8
95.2
54.1
69.8
95.2
47.8
69.8
98.6
47.8
69.8
98.6
47.8
69.8
117.6
2
69.8
85.8
104.9
69.8
85.8
111.2
69.8
85.8
111.2
69.8
85.8
111.2
58.7
85.8
143.0
58.7
85.8
143.0
58.7
85.8
146.0
2 1/2
82.6
98.6
124.0
82.6
98.6
130.3
82.6
98.6
130.3
82.6
98.6
130.3
69.8
98.6
165.1
69.8
98.6
165.1
69.8
98.6
168.4
3
101.6
120.6
136.6
101.6
120.6
149.4
101.6
120.6
149.4
101.6
120.6
149.4
95.2
120.6
168.4
92.2
120.6
174.8
92.2
120.6
196.8
4
127.0
149.4
174.8
127.0

149.4

181.1
120.6
149.4
177.8
120.6
149.4
193.8
120.6
149.4
209.6
117.6
149.4
209.6
117.6
149.4
235.0
5
155.7
177.8
196.8
155.7
177.8
215.9
147.6
177.8
212.8
147.6
177.8
241.3
147.6
177.8
247.6
143.0
177.8
254.0
143.0
177.8
279.4
6
182.6
209.6
222.2
182.6
209.6
251.0
174.8
209.6
247.6
174.8
209.6
266.7
174.8
209.6
289.0
171.4
209.6
282.7
171.4
209.6
317.5
8

233.4

263.6
279.4
233.4
263.6
308.1
255.6
263.6
604.8
255.6
263.6
320.8
222.2
257.3
358.9
215.9
257.3
352.6
216.9
257.3
387.4
10
287.3
317.5
339.8
287.3
317.5
362.0
274.6
317.5
358.9
274.6
317.5
400.0
276.4
311.2
435.1
266.7
311.2
435.1
270.0
311.2
476.2
12
339.8
374.6
409.7
339.8
374.6
422.4
327.2
374.6
419.1
327.2
374.6
457.2
323.8
368.3
498.6
323.8
368.3
520.7
317.5
368.3
549.4
14
371.6
406.4
450.8
371.6
406.4
485.9
362.0
406.4
482.6
362.0
406.4
492.2
355.6
400.0
520.7
362.0
400.0
577.8
-
-
-
16
422.4
463.6
514.1
422.4
463.6
539.8
412.8
463.6
536.7
412.8
463.6
565.2
412.8
457.2
574.8
406.4
457.2
641.1
-
-
-
18
474.7
527.0
549.4
474.7
527.0
596.9
469.9
527.0
593.8
469.9
527.0
612.9
463.6
520.7
638.3
463.6
520.7
704.8
-
-
-
20
525.5
577.8
606.6
525.5
577.8
654.0
520.7
577.8
647.7
520.7
577.8
682.8
520.7
571.5
698.5
514.4
571.5
755.6
-
-
-
24
628.6
685.8
717.6
628.6
685.8
774.7
628.6
685.8
768.4
628.6
685.8
790.7
628.6
679.4
838.2
616.0
679.4
901.7
-
-
-
   
 
Contact Information
Company:

Cixi Dongfeng Sealing & packing co., Ltd

Address: No.225,Jinsha Road,Cixi city,NingboChina
P.C: 315300
Tel: 86-574-63225670,63225671,63225672,63226625
Fax: 86-574-63226688
Url: www.chinaptfe.com
E-mail: sales@chinaptfe.com
xiaojun@chinaptfe.com