Virgin PTFE White Envelope Gasket Sealing Material With low price
DESCRIPTION
PTFE Envelope Gasket is made of PTFE wrapping flexible core material by professional equipment. It is mainly used on the sealing gasket of the flange, pagoda groove and all kinds of the machinery equipment. It is also used on highly corrosive liquid, such as strong acid, halogen or no contaminating food stuff, medicine. It has outstanding corrosion resistance and is suitable for majority of chemical material,especially the toxicity, strong acid, strong alkaline and strongly corrosive medium. It is application to chemical, petrochemical, pharmaceutical and food industries (With the exception of molten alkali and high temperature fluoride).
V type : V type is the most commonly used and one of most economical gaskets. It is suitable for various applications, with the exception of corrosive fluids and the requirements of thicker embedded material.
Square type: Applicable to the production of thicker embedded materials and corrosive fluids, liquid residual in the inner diameter of the flange can be reduced.
U type: Applicable to toxic chemicals and the production of large diameter gaskets.
SEPCIFICATION
Type A and Type B
PTFE envelope gasket commonly used Standard European size system
Nominal Size DN |
Inner Diameter of enveloping layer D1 |
Outer Diameter of enveloping layer D3min |
Gasket Outer Diameter D2 |
Gasket Thickness T |
Nominal Pressure PN |
6 |
10 |
16 |
25 |
40 |
10 |
18 |
36 |
39 |
46 |
46 |
46 |
46 |
3 |
15 |
22 |
40 |
44 |
51 |
51 |
51 |
51 |
20 |
27 |
50 |
54 |
61 |
61 |
61 |
61 |
25 |
34 |
60 |
64 |
71 |
71 |
71 |
71 |
32 |
43 |
70 |
76 |
82 |
82 |
82 |
82 |
40 |
49 |
80 |
86 |
92 |
92 |
92 |
92 |
50 |
61 |
92 |
96 |
107 |
107 |
107 |
107 |
65 |
77 |
110 |
116 |
127 |
127 |
127 |
127 |
80 |
89 |
126 |
132 |
142 |
142 |
142 |
142 |
100 |
115 |
151 |
152 |
162 |
162 |
168 |
168 |
125 |
141 |
178 |
182 |
192 |
192 |
194 |
194 |
150 |
169 |
206 |
207 |
218 |
218 |
224 |
224 |
200 |
220 |
260 |
262 |
273 |
273 |
284 |
290 |
250 |
273 |
314 |
317 |
328 |
329 |
340 |
352 |
300 |
324 |
365 |
373 |
378 |
384 |
400 |
417 |
350 |
377 |
412 |
423 |
438 |
444 |
457 |
474 |
400 |
426 |
469 |
473 |
489 |
495 |
514 |
546 |
4 |
450 |
480 |
528 |
528 |
539 |
555 |
564 |
571 |
500 |
530 |
578 |
578 |
594 |
617 |
624 |
628 |
Type C
Nominal Size DN |
Inner Diameter of enveloping layer D1 |
Outer Diameter of enveloping layer D3min |
Gasket Outer Diameter D2 |
Gasket Thickness T |
Nominal Pressure PN |
6 |
10 |
16 |
25 |
40 |
350 |
377 |
412 |
423 |
438 |
444 |
457 |
474 |
4 |
400 |
426 |
469 |
473 |
489 |
495 |
514 |
546 |
450 |
480 |
528 |
528 |
539 |
555 |
564 |
571 |
500 |
530 |
578 |
578 |
594 |
617 |
624 |
628 |
600 |
630 |
679 |
679 |
695 |
734 |
731 |
747 |
Type A and Type B
PTFE envelope gasket commonly used ASME standard size
Nominal Size |
Inner Diameter of enveloping layer D1 |
Outer Diameter of enveloping layer D3min |
Gasket Outer Diameter D4 |
Gasket Thickness T |
DN |
NPS |
Nominal Pressure Class |
150 |
300 |
15 |
1/2 |
22 |
40 |
46.5 |
52.5 |
3 |
20 |
3/4 |
27 |
50 |
56.0 |
66.5 |
25 |
1 |
34 |
60 |
65.5 |
73.0 |
32 |
11/4 |
43 |
70 |
75.0 |
82.5 |
40 |
11/2 |
49 |
80 |
84.5 |
94.5 |
50 |
2 |
61 |
92 |
104.5 |
111.0 |
65 |
21/2 |
77 |
110 |
123.5 |
123.0 |
80 |
3 |
89 |
126 |
136.5 |
148.5 |
100 |
4 |
115 |
151 |
174.5 |
180.0 |
125 |
5 |
141 |
178 |
196.0 |
215.0 |
150 |
6 |
169 |
206 |
221.5 |
250.0 |
200 |
8 |
220 |
260 |
278.5 |
306.0 |
250 |
10 |
273 |
314 |
338.0 |
360.5 |
300 |
12 |
324 |
365 |
408.0 |
421.0 |
350 |
14 |
356 |
412 |
449.5 |
484.5 |
4 |
400 |
16 |
407 |
469 |
513.0 |
538.5 |
450 |
18 |
458 |
528 |
548.0 |
595.5 |
500 |
20 |
508 |
578 |
605.0 |
653.0 |
Type C
Nominal Size |
Inner Diameter of enveloping layer D1 |
Outer Diameter of enveloping layer D3min |
Gasket Outer Diameter D4 |
Gasket Thickness T |
DN |
NPS |
Nominal Pressure Class |
150 |
300 |
350 |
14 |
356 |
412 |
449.5 |
484.5 |
4 |
400 |
16 |
407 |
469 |
513.0 |
538.5 |
450 |
18 |
458 |
528 |
548.0 |
595.5 |
500 |
20 |
508 |
578 |
605.0 |
653.0 |
600 |
24 |
610 |
679 |
716.5 |
774 |
INFORMATION ABOUT OUR FACTORY

Zhenjiang Chunhuan Sealing Materials Co., Ltd(Group) is located in Yangzhong City, Jiangsu Province, China, Founded in 1985, after more than 30 years of continuous development, has become the production of fluorine plastic products scale backbone enterprises. Companies registered capital of 80.88 million yuan, with more than 8,000 yuan in fixed assets, 20,000 square meters of business premises, more than 200 workers,
Our Service
1)Your inquiry will be replied within 2 hours during working time,Within 24hours when rest time.
2)Our working time is 7.30 AM --17:30 PM,Monday to Saturday.
3)General samples time can be arranged within 2--5days.
4)Orders will be produced exactly as request and approved samples.
5)When mass production,we send photos to show the production line.And confirm the estimate time again.
6)At the end of mass production,photos and samples will send to you for approval.You can arrange the inspection.
7)Before shipment,our QC will have inspection to make sure the quality.
8)We always try best to ensure every order to delivery in time.
Payment Terms
1)T/T,Cash,L/C.
2)30% deposit,70% balance before shipment.
3)Lead time: 15 days after received deposited for 2tons.
4)Delivery way: By sea,By air, By EMS,DHL,UPS,TNT,FedEx.
Packing & Delivery
For sample: By EMS,DHL,UPS,TNT,FedEx
around 5--7 working days to arrive
For Bulk order:
1.Qty of 2tons,within 15 days.
2.Via Sea
3.Delivery time:we will finish production in 15days for 2tons.
4.For 20 GP,may nee around 30days.