Flange Sealing PTFE gasket Scientific Process
Product Description
PRODUCT FEATURES
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).
CATEGORIES
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.
SPECIFICATION
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 |
SEPCIFICATION
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 |
ABOUT OUR SERVICE
1)Your inquiry will be replied within 2 hours during working time,Within 24 hours 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 shipping,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 shipping.
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 15 days for 2 tons.
4.For 20 GP,may nee around 30 days.
ABOUT OUR COMPANY
Zhenjiang Chunhuan Sealing Materials Co., Ltd (Group) is one of the fluoroplastics processing enterprises taking the lead in passing the IS09001 quality system certification. And with the strength of PTFE products, which are superior quality with FDA,REACH,RoHS,MSDS certificate.
Our group mainly manufactures products: PTFE rod, PTFE film, pipes, sheets & mats, PTFE push rods & extrude rods, PTFE turning plates & teflon film , PTFE fillings, PTFE belts, ropes, tapes & packing tapes, metallic gaskets, PTFE corrosion resistant linings, composited tubes & pipe fittings, Rubber sheets, mats, framework oil seals & o-rings.
Product Categories : PTFE Products > PTFE Gasket