MERCER 800
TFE-20-1w

MERCER 800

TEFLON® EXPANSION JOINTS

MERCER Series 800 TFE Teflon® Expansion Joints are the Sure and Economical Way to Solve Difficult Expansion and Misalignment

The Teflon® material is corrosive-proof, chemically inert and does not age. Flexibility and flex cycle life is equally exceptional.

The Teflon® body is formed over the full sealing face of the flanges eliminating the need for separate gaskets. The fluid or gas never contacts the floating flanges.

The Type 800 is manufactured in 2, 3 and 5 arch variations designated 802, 803, and 805. Flexibility and allowable movements increase with the number of arches. Teflon® is ideally suited to the following problems:

  • Handling Nitric or Sulfuric acid in mining or plating operations.
  • Providing low spring rates and high flexibility to protect fragile FRP, PVC or glass pipe from damage caused by expansion, contraction or ambient vibration.
  • Accommodating expansion and contraction in high temperature ( up to 350° F, 177° C ) caustic green, white and black liquor lines in pulp mills.
  • Preventing pipe line vibration from damaging glass linings in acid and caustic soda pumps.
  • Providing flexibility to prevent flange leaks caused by the minor explosions in lines from Chlorine generators in bleaching plants of paper mills.
  • Providing non-contaminating, sterilizable, flexible connectors for the food processing, medical, and chip manufacturing industries.

The standard assembly utilizes high strength carbon steel flanges complete with three restraining bolts.

The Teflon® is reinforced externally with stainless steel ring between arches.

There is a MERCER Series 800 Teflon® Expansion Joint to suit your needs.

 
STYLE 800 MAXIMUM PRESSURE RATINGS
Pipe
Size
(in)

   Maximum Pressure Ratings (psig) at
50° F 100° F 150° F 200° F
802 803
805		 802 803
805		 802 803
805		 802 803
805
1
1 1/2		 180 150 135 100 100 75 90 70
2
2 1/2		 180 150 135 100 100 75 90 70
3 180 150 135 100 100 75 90 60
4 150 150 135 100 100 75 85 70
5 150 150 125 85 85 65 80 65
6 150 150 120 80 75 55 75 60
8 150 150 115 75 70 45 65 50
10 150 150 115 75 70 50 60 40
12 150 150 110 75 60 40 50 30

 

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STYLE 802 DIMENSIONS and ALLOWABLE MOVEMENTS
Size Flange
Dia.		 Style 802
Face to
Face		 Axial
+		 Max
Misalignment
in mm in mm
in mm in mm in mm
1
1 1/2
2
2 1/2		 25
40
50
65		 6 7/8
8 1/4
8 3/4
9 12		 175
210
223
242		 1 3/8
1 3/8
1 5/8
2 1/4		 35
35
41
57		 1/4
1/4
1/4
1/4		 6.4
6.4
6.4
6.4		 1/8
1/8
1/8
1/8		 3.2
3.2
3.2
3.2
3
4
5
6		 80
100
125
150		 10 1/2
11 5/8
13 1/4
14 1/2		 267
296
337
369		 2 1/4
2 5/8
3 1/4
2 3/4		 57
67
83
70		 3/8
1/2
1/2
1/2		 9.5
12.7
12.7
12.7		 1/4
1/4
1/4
1/4		 6.4
6.4
6.4
6.4
8
10
12		 200
250
300		 17 5/8
20
23 1/2		 448
508
597		 4
5 1/4
5 1/4		 102
133
133		 1/2
1/2
1/2		 12.7
12.7
12.7		 1/4
1/4
1/4		 6.4
6.4
6.4

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STYLE 803 DIMENSIONS and ALLOWABLE MOVEMENTS
Size Flange
Dia.		 Style 803
Face to
Face		 Axial
+		 Max
Misalignment
in mm in mm
in mm in mm in mm
1
1 1/2
2
2 1/2		 25
40
50
65		 6 7/8
8 1/4
8 3/4
9 12		 175
210
223
242		 1 3/4
2
2 3/4
3		 44
51
70
83		 1/2
1/2
3/4
3/4		 12.7
12.7
19.1
19.1		 1/4
1/4
3/8
3/8		 6.4
6.4
9.5
9.5
3
4
5
6		 80
100
125
150		 10 1/2
11 5/8
13 1/4
14 1/2		 267
296
337
369		 3 5/8
3 5/8
4
4		 92
92
102
102		 1
1
1
1 1/8		 25.4
25.4
25.4
28.6		 1/2
1/2
1/2
5/8		 12.7
12.7
12.7
15.9
8
10
12		 200
250
300		 17 5/8
20
23 1/2		 448
508
597		 6
6
6		 152
152
152		 1 1/8
1 1/8
1 1/4		 28.6
28.6
31.8		 5/8
3/8
3/8		 15.9
9.5
9.5

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STYLE 805 DIMENSIONS and ALLOWABLE MOVEMENTS
Size Flange
Dia.		 Style 805
Face to
Face		 Axial
+		 Max
Misalignment
in mm in mm
in mm in mm in mm
1
1 1/2
2
2 1/2		 25
40
50
65		 6 7/8
8 1/4
8 3/4
9 12		 175
210
223
242		 3
3 1/2
4 3/4
4 3/4		 76
89
120
120		 3/4
3/4
1
1		 19.1
19.1
25.4
25.4		 1/2
1/2
1/2
1/2		 12.7
12.7
12.7
12.7
3
4
5
6		 80
100
125
150		 10 1/2
11 5/8
13 1/4
14 1/2		 267
296
337
369		 5 1/4
5 3/4
6
6		 135
145
152
152		 1 1/4
1 1/4
1 1/4
1 1/4		 31.8
31.8
31.8
31.8		 1/2
5/8
5/8
5/8		 12.7
15.9
15.9
15.9
8
10
12		 200
250
300		 17 5/8
20
23 1/2		 448
508
597		 8
8
8		 203
203
203		 1 3/4
1 3/4
2		 44.5
44.5
50.8		 1 1/4
5/8
3/8		 31.8
15.9
9.5