PTFE BELLOWS

Innoway offers a range of PTFE bellows to be used in special chemical and industrial applications.

Low Pressure PTFE Expansion Joints Type R-LD

PTFE multi-laminated tubes, that ensure an absolute minimum porosity and a homogenous wall-thickness, are transformed again under temperature and pressure to special high-quality bellows, with a high vacuum- and pressure resistance, even during a long period.

p-T-Diagramm_PTFE_01-26666e86Installation Lengths for PTFE Bellows Type R-LD

High Pressure PTFE Expansion Joints Type R-HD

PTFE multi-laminated tubes, that ensure an absolute minimum porosity and a homogenous wall-thickness, are transformed again under temperature and pressure to special high-quality bellows, with a high vacuum- and pressure resistance, even during a long period.

p-T-Diagramm_PTFE_01-26666e86Installation Lengths for PTFE Bellows Type R-HD

Design and Movement of a PTFE Bellow

  1. Stainless steel support rings
  2. Limit bolts St/PE sleeved
  3. Flange – GGG 40 (0.7043), coated
  4. Threaded holes DIN or ANSI
  5. PTFE expansion join

joint_movement-52900ba0Available on Request

  • Quality certificate according to Pressure Equipment Directive 97/23/EC
  • Conductive PTFE
  • Double wall bellows with cavity safety drain
  • Flanges in 304 Inox (1.4301), 316 Ti (1.4571), with or without certificate according to EN 10204 3.1
  • With non-standard connections
  • Support rings in Monel 400, Hastelloy C3, Hastelloy C4
  • Special fittings to avoid distorsion on longer bellows
  • Internal anti-deposit sleeve
  • Larger sizes up to ND 900
  • Standard flanges ASA 150 or DIN, others on request

 

p-T graph for PTFE bellow design

p-T-Diagramm_PTFE_01-26666e86