Q-FLEX Union Twin Sphere Rubber Flexible

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Description

Description (Features)

Small diameter piping system can present real problems when stress alleviation is required. Space is generally critical. Conventional flanged expansion joints cannot be used without relocating piping runs. QFTU type solves this problem because of their screw ends.

Typical Applications

  1. Building equipment, piping systems for industrial plans and piping systems for private residence.
  2. Prevention of disasters due to earthquakes and subsidence of ground.
  3. Waterworks, sewerage and sanitary lines (feed – water and drainage).

Operating Conditions
(based on Neoprene Rubber Material)

Operating Pressure 16kg / cm^2(228psi)
Burst Pressure Over 50kg / cm^2(711 psi)
Negative Pressure 500mm Hg
Working Temperature -20 °C to 100 °C
(-4 °F to 212 °F)
Working Fluids Water, Hot Water, Sea Water, Compressed Air, Steam, Solvent, Acid, Weak Alkalies

Twin-Sphere Union

Item Part Material
1 UNION Malleable Iron
2 Reinforcing Cloth Nylon Fabric
3 Elastomer Synthetic Rubber
  • Standard rubber material uses EPDM & Neoprene or may be replaced by other special synthetic rubber.

Dimension and allowable tolerance / movement

Nominal Bore
(Inner Dia.)
Size
lenght of Bellows (mm) Transverse
Movement
+/-(mm)
Axial Elongation
(mm)
Axial
Compression
(mm)
Angular
Deflection
Face to Face Distance(mm) Total Acceptable Telerance +(-mm)
20mm 3/4″ 190 2 22 6 10 20°
25m 1″ 200 2 22 6 10 20°
32mm 1.1/4″” 200 2 22 6 15 20°
40mm 1.1/2″” 200 2 22 6 15 20°
50mm 2″” 200 2 22 6 15 20°
65mm 2.1/2″” 235 2 30 6 15 20°
80mm 3″ 245 2 30 6 15 20°