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nahad

hose safety institute

 

Plastic Lined Steel Pipe & Fittings

resistoflex

Click on above for more detailed information.

 

Resistoflex Product Families:

FLANGED PLASTIC-LINED PIPE

Resistoflex plastic lined pipe is made with a locked-in liner to minimize the adverse affects of differential thermal expansion between the liner and the steel. Both processes used are exclusive to Resistoflex.

THERMALOK Pipe - annealing process relieves stress in the liner while expanding the liner within the steel housing.

  • Unlimited housing material options
  • More flexibility in flange options
  • Sizes ranging from 1" - 24" diameter

Swaged Pipe - Specialty steel tubing is mechanically reduced around the plastic liner.

  • Used exclusively for CONQUEST® and MULTI-AXIS®
  • Sizes ranging from 1" - 8"
  • Threaded flanges and rotatable flange assemblies only

MULTI-AXIS® PIPE

Precision bent piping custom made per customer drawing.

  • Up to 4 compound bends (3D) in a single piece for dramatic joint reduction
  • Fewer bolts means faster installation
  • Trickier handling
  • Design assistance available from Resistoflex Engineering Support Service

CONQUEST® CONNECTION

CONQUEST® Pipe is designed to minimize the number of flanged connections in the process line. The Patented flangeless joint design with performance of a welded system. CONQUEST® is made from swaged pipe and is available in 1" - 4" for all liner types.

  • Welded liners provide primary seal
  • Special Lokring couplings provide weld-like performance on the steel
  • Zero maintenance requirement
  • No monitoring per US Clean Air Act regulations
  • Field pipe routing capability

PLASTIC-LINED FITTINGS

Resistoflex manufactures thousands of different shaped plastic lined fittings according to ANSI dimensions. PP, PVDF, and PFA fittings are all injection or transfer molded. Fittings lined with Tefzel® ETFE and special shapes are roto-lined in custom housings. PTFE liners are made by isostatic molding. Fittings are generally differentiated by their metallurgies.

Ductile Iron - Economical Glass 150 fittings with fixed flanges for PP and PVDF liners and certain PTFE fittings.
Cast Steel - High strength Class 150 or Class 300 ratings for PP, PVDF and PFA liners. Flanges are fixed.
Fabricated Steel - High performance Class 150 or Class 300 fittings with rotatable flanges used with PTFE liners. Can be made to DIN or JIS flange dimension. Can also be fabricated using stainless steel or exotic alloys.
CONQUEST® Fittings - Patented flangeless fittings designed for use with CONQUEST® couplings.

VALVES

Resistoflex manufactures four different types of valves for corrosive services. The diaphragm and clamp valves provide throttling capabilities, and vertical and horizontal checks prevent backflow in process lines.

Diaphragm Valve

  • Ductile Iron or Cast Steel Body
  • Liner Options and Size availability: PP (1" - 8"), PVDF (1" - 8"), PFA (1" - 4")
  • Diaphragm materials: PTFE, Viton®, Hypalon®, or EPDM

Horizontal Check Valve

  • Sliding Poppet
  • PP (1" - 8"), PVDF (1" - 6")
  • 0.5 psi poppet unseating pressure

Vertical Check Valve

  • Sliding Poppet
  • PP (1" - 8"), PVDF (1" - 8"), PFA (1" - 4")
  • 0.5 psi poppet unseating pressure

Clamp Valve

  • 1" - 8" PTFE-lined
  • Ductile Iron Body
  • Packless Design
  • Full-Flow
  • Bubble tight
  • Linear Actuation Option

SPECIAL SHAPES

Fabricated and rotationally lined custom fitting sand small vessels. Lined with Tefzel®, these custom products are available through 24" dia., with ANSI or custom dimensions. Contract lining and manufacturing services are available for pump, valve, and flowmeter OEM's.

SIGHT FLOW INDICATORS

Resistoflex PTFE-Lined Bull's Eye sight flow indicators are used to observe the fluid and flow characteristics of process fluids. Sight flows can be optionally equipped with drip lips and/or flutter flow indicators. These products are available in 1" - 6" from Resistoflex USA and in 8" - 16" diameter as manufactured by Resistoflex GmbH.

EXPANSION JOINTS

Resistoflex expansion joints are made of contour molded PTFE, providing exceptional corrosion resistance and flex-life. The flexible liner is molded over the metallic sealing face. Different numbers of convolutions accommodate varying degrees of misalignment, axial travel, and angular deflection between components:

2 Convolutions - Flexible Coupling

  • Available 1" - 12"
  • Highest Pressure Ratings
  • Full Vacuum Rated

3 Convolutions - Expansion Joint

  • Available 1" - 8"
  • Moderate Pressure Ratings
  • Full Vacuum Rated

5 Convolutions - Bellows

  • Available 1" - 6"
  • Lowest Pressure Ratings
  • Not Vacuum Rated

NOTE: 14" - 24" expansion joints are available through Resistoflex GmbH.