PTFE lined Bellow expansion joint
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The PTFE expansion joints are unreinforced PTFE that come standard with iron 150# drill flanges. Stainless flanges are available. They are avaialable in 2, 3, or 5 convolutions of varing movements. The 2-convolution joint is sometimes referred to as a "coupling".
Molded flexible couplings and expansion joints of PTFE designed to help protect pumps, compressors and other expensive equipment.
Bellows-type flexible couplings and expansion joints are contour molded of black PTFE by a patented process. They are corrosion resistant, non-aging, with extraordinary flex life and unmatched reliability. These superior units cost no more than those made of lesser materials. The flexible element is formed over the full sealing face of the end flanges eliminating troublesome separate gaskets.Note the change in pressure rating with temperature.
PTFE expansion joint 2 convolutes |
| DIA
(in) |
LNGTH
(in) |
COMPR
(in) |
LATERAL
(in) |
WT
(lbs) |
PRESS @ 70F
(psi) |
PRESS @ 200F
(psi) |
PRESS @ 300F
(psi) |
PRESS @ 400F
(psi) |
| 1 |
1 3/8 |
1/4 |
1/8 |
|
170 |
135 |
100 |
70 |
| 1 1/2 |
1 3/8 |
1/4 |
1/8 |
3 |
170 |
135 |
100 |
70 |
| 2 |
1 9/16 |
1/4 |
1/8 |
7 |
170 |
135 |
95 |
65 |
| 2 1/2 |
2 1/4 |
5/16 |
1/8 |
10 |
165 |
130 |
95 |
65 |
| 3 |
2 1/4 |
3/8 |
3/16 |
12 |
165 |
125 |
90 |
60 |
| 4 |
2 5/8 |
1/2 |
1/4 |
18 |
160 |
125 |
85 |
60 |
| 5 |
3 1/4 |
1/2 |
1/4 |
24 |
155 |
120 |
85 |
60 |
| 6 |
2 3/4 |
1/2 |
1/4 |
29 |
150 |
115 |
85 |
55 |
| 8 |
4 |
1/2 |
1/4 |
47 |
145 |
110 |
80 |
55 |
| 10 |
5 1/4 |
1/2 |
1/4 |
64 |
140 |
110 |
80 |
55 |
| 12 |
6 |
1/2 |
1/4 |
72 |
135 |
105 |
75 |
50 |
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Factory Corner
FAQ
Q.
Are you a trading company or a manufacturer?
A: We are a manufacturer as you can see our workshop as above.
Q.
What is your payment term?
A:Normally T/T 30% in advance, balance to be paid before delivery.
Q:
What is your main market?
A:North America,Greenland,South America,Africa,Southeast Assia, Former Soviet Republics ,East Assia,and Europe.
Q:
Can I place sample order to your factory?
A: Yes, Samples can be provided.
Q:
What kind of trade terms can you do?
A:EX-WORKS,FOB,CFR,CIF,etc.
Q:
How long is your delivery time?
A: Generally it is 5-7 days if the goods are in stock. Or it is 15-20 days if the goods are not in stock, it is accordijng to quantity.
Audited Supplier 
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