Jiangxi Zhaohui Fluoroplastic Products Co., Ltd

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PTFE Diaphragm

PTFE diaphragm is a critical component in diaphragm pumps, particularly in applications requiring high chemical resistance, temperature stability, and low permeability. PTFE (Polytetrafluoroethylene) is a fluoropolymer known for its exceptional resistance to corrosive chemicals, wide temperature range, and non-stick properties.

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COMPLETE SPECIFICATIONS

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PRODUCT

PARAMETER

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Parameter Name	Unit	Parameter Range or Description
Diameter	mm	50 - 800 (customized)
Thicknesses	mm	0.5 - 5.0 (customized)
Operating Temperature Range	°C	Below 260°C
Instantaneous temperature resistance	°C	Below 330 degrees
Work pressure	MPa	0~ 1.0 (According to diaphragm structure)
Tensile strength	MPa	≥30MPa
Elongation at break	%	≥300%
Hardness (Shore D)	\	D50 - 65
Dielectric strength	KV/mm	1.9kv/mm (@ sample thickness t = 3.2mm)
Volume resistivity	Ω - cm	>10¹⁸
Corrosion resistance	\	Resistant to strong acids, strong bases, organic solvents
Fatigue resistance	times	16 to 20 million times
Airight	\	No leakage, high and low pressure shock resistant
Applicable medium	\	Strong acids, strong bases, solvents, food, pharmaceutical fluids
Applicable industries	\	Chemicals, pharma,aceuticals, food, electronics, water treatment, semiconductors