
BULLETIN TFE-20-4
MASON/MERCER EXPANSION JOINTS
9
•
106
800
Series
Mercer Series 800 PTFE 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 flang-
es eliminating the need for separate gaskets. The fluid or gas
never contacts the floating flanges.
The Series 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
• P roviding 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 (to 350°F, 177°C) caustic green, white and
black liquor lines in pulp mills
• P reventing pipe line vibration from damaging glass linings
in acid and caustic soda pumps
• P roviding 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 rings between arches.
They are also available with stainless steel flanges and stainless
steel hardware. There is a Mercer Series 800 Teflon
®
Expansion
Joint to suit your needs.
ARCH
Style 802
ARCH
Style 803
ARCH
Style 805
STYLE SERIES
MAXIMUM PRESSURE RATINGS
Pipe Size
Maximum Pressure Ratings
up to 100°F (38°C)
802 803/805
(in) (mm) (psig) (kg/cm
2
) (psig) (kg/cm
2
)
1 25 140 9.8 100 7.0
1
1
/2 40 140 9.8 100 7.0
2 50 140 9.8 100 7.0
2
1
/2 65 140 9.8 100 7.0
3 80 140 9.8 100 7.0
4 100 130 9.1 100 7.0
5 125 130 9.1 90 6.3
6 150 120 8.4 90 6.3
8 200 110 7.7 85 6.0
10 250 110 7.7 85 6.0
12 300 110 7.7 85 6.0
MERCER TEFLON
®
EXPANSION JOINTS
Distributor:
Interflex Hose & Bellows Ltd. • www.interflex.co.uk
Ludlow Eco Park • Ludlow • Shropshire • SY8 1FF • UK
Tel.: +44 (0)1584 878500 • Email: enquiries@interflex.co.uk
*Teflon is a trademark of E.I.DuPont Nemours & Co.