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NHFLEX-D
Corrosion-resistant rubber expansion joints are engineered to safeguard chemical processing systems against aggressive acids, alkalis, and solvents. Featuring a dual-layer construction with PTFE (Teflon®) or PVDF liners bonded to chemically inert elastomers like Hypalon or FPM, these joints deliver unmatched resistance to permeation and chemical attack. Designed per ASTM F1123 standards, they are vacuum-rated and capable of handling full-concentration sulfuric acid, chlorine gas, and caustic solutions at temperatures up to 180°C. Optional FDA-compliant materials make them suitable for pharmaceutical and food-grade applications.
1. Full Bore Lining: Seamless PTFE liners eliminate crevices for sterile processing in API manufacturing.
2. Electrostatic Dissipation: Carbon-black-loaded compounds prevent spark risks in solvent transfer.
3. Pressure Versatility: Rated from full vacuum to 16 bar static pressure with stainless steel bead reinforcement.
4. Hygienic Design: 3-A Sanitary Standards-compliant models feature polished surfaces and CIP/SIP compatibility.
5. Abrasion Resistance: Dual durometer construction combines soft rubber for flexibility with hard rubber wear pads.
· Acid Slurry Transfer: Used in titanium dioxide production and battery electrolyte systems.
· Pharmaceutical Bioreactors: Connects fermentation tanks and chromatography skids.
· Electroplating Plants: Resists chromic acid fumes in anode/cathode circulation loops.
· Waste Neutralization: Deployed in scrubber systems handling HCl and SO2 emissions.
Q: How is liner adhesion ensured?
A: Proprietary plasma treatment creates micro-pores on PTFE surfaces for permanent elastomer bonding.
Q: Can liners be replaced onsite?
A: Field-replaceable cartridge-style liners are available for quick maintenance.
Q: What documentation accompanies these joints?
A: Material Certificates (EN 10204 3.1), FDA Declarations, and Exida SIL reports are provided.
| MATERIAL SPECIFICATION | ||
| Part No. | Part | Standard Specification |
| 1 | Union | Malleable iron |
| 2 | Rubber (Outer) | EPDM |
| 3 | Reinforcing Fabric | Nylon Fabric |
| 4 | Rubber (lnner) | EPDM |
Note: For special material request other than standard specification, please indicate clearly on the inquiy or order list.
Corrosion-resistant rubber expansion joints are engineered to safeguard chemical processing systems against aggressive acids, alkalis, and solvents. Featuring a dual-layer construction with PTFE (Teflon®) or PVDF liners bonded to chemically inert elastomers like Hypalon or FPM, these joints deliver unmatched resistance to permeation and chemical attack. Designed per ASTM F1123 standards, they are vacuum-rated and capable of handling full-concentration sulfuric acid, chlorine gas, and caustic solutions at temperatures up to 180°C. Optional FDA-compliant materials make them suitable for pharmaceutical and food-grade applications.
1. Full Bore Lining: Seamless PTFE liners eliminate crevices for sterile processing in API manufacturing.
2. Electrostatic Dissipation: Carbon-black-loaded compounds prevent spark risks in solvent transfer.
3. Pressure Versatility: Rated from full vacuum to 16 bar static pressure with stainless steel bead reinforcement.
4. Hygienic Design: 3-A Sanitary Standards-compliant models feature polished surfaces and CIP/SIP compatibility.
5. Abrasion Resistance: Dual durometer construction combines soft rubber for flexibility with hard rubber wear pads.
· Acid Slurry Transfer: Used in titanium dioxide production and battery electrolyte systems.
· Pharmaceutical Bioreactors: Connects fermentation tanks and chromatography skids.
· Electroplating Plants: Resists chromic acid fumes in anode/cathode circulation loops.
· Waste Neutralization: Deployed in scrubber systems handling HCl and SO2 emissions.
Q: How is liner adhesion ensured?
A: Proprietary plasma treatment creates micro-pores on PTFE surfaces for permanent elastomer bonding.
Q: Can liners be replaced onsite?
A: Field-replaceable cartridge-style liners are available for quick maintenance.
Q: What documentation accompanies these joints?
A: Material Certificates (EN 10204 3.1), FDA Declarations, and Exida SIL reports are provided.
| MATERIAL SPECIFICATION | ||
| Part No. | Part | Standard Specification |
| 1 | Union | Malleable iron |
| 2 | Rubber (Outer) | EPDM |
| 3 | Reinforcing Fabric | Nylon Fabric |
| 4 | Rubber (lnner) | EPDM |
Note: For special material request other than standard specification, please indicate clearly on the inquiy or order list.
