• Hongum Technology (Shanghai) Co., Ltd
    Linda.M
    Since collaborating with Hongum in 2020, their marine-grade rubber diaphragms and industrial shock absorbers have delivered zero-failure performance, ensuring uninterrupted operations for our port cranes, dredger propulsion systems, and LNG carrier equipment.
Contact Person : Sophia Lau
Whatsapp : +8617717306066

Multi Layer Composite Valve Rubber Diaphragm EPDM PTFE Laminated Chemical Barrier Dual Hardness

Place of Origin Guangdong, China
Brand Name WNRLN
Certification ISO 9001:2015
Model Number VRD-COMP-PTFE
Minimum Order Quantity 30 Pieces
Price USD 6.00-30.00 / Piece
Packaging Details Individual sealed polybag with desiccant, protective tray, export-grade carton
Delivery Time 10-15 days for stock, 25-30 days for production
Payment Terms T/T, L/C, PayPal, Western Union
Supply Ability 20000 Pieces per Month
Product Details
Construction EPDM Base + PTFE Lamination Hardness 55A Seal / 80A Mount
Temperature Range -20C To +130C Flex Life >1,000,000 Cycles
Permeability Ultra-low Gas Chemical Barrier PTFE Layer
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EPDM PTFE laminated rubber diaphragm

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Multi layer composite valve diaphragm

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Chemical barrier dual hardness diaphragm

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Product Description

Multi-Layer Composite Valve Rubber Diaphragm

Advanced multi-layer composite diaphragm featuring an EPDM base layer with PTFE lamination for superior chemical barrier properties. The dual-hardness design combines a flexible sealing zone with a rigid mounting area for optimal performance.

Key Features

  • Construction: EPDM base + PTFE chemical barrier layer
  • Dual Hardness: Soft sealing zone (55A) + rigid mounting zone (80A)
  • Chemical Resistance: PTFE layer provides universal chemical compatibility on wetted side
  • Temperature Range: -20°C to +130°C
  • Flex Life: >1 million cycles with PTFE lamination
  • Permeability: Ultra-low gas permeability for vacuum service
  • Customization: Layer materials configurable per application

Applications

Chemical processing valves requiring universal chemical resistance, vacuum systems, high-purity gas handling, corrosive fluid control, and pharmaceutical processing.

Quality Assurance

Each diaphragm undergoes layer adhesion testing and dimensional inspection. ISO 9001:2015 certified manufacturing with full traceability.